2026 European heatwaves
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Starting in late May 2026, several severe heatwaves affected Europe. Temperature records were broken in Austria, Belarus, Belgium, Czech Republic, Denmark, France, Germany, Hungary, Ireland, Italy, the Netherlands, Poland, Romania, Slovakia, Slovenia, Spain, Switzerland and the United Kingdom.[21] The first heatwave began on 24 May, with temperatures higher than normal and several Heat-related deaths. Temperatures were the highest ever recorded for May,[22][23] with climate change causing the earlier onset of Central Europe's summer.[24] Western Europe was the most affected area, with reports of record-breaking temperatures in France,[25][26] Ireland and the United Kingdom. Other countries with unusually high temperatures were Portugal, at 40 °C (104 °F), and Spain, with temperatures in the southwest reaching 39 °C (102 °F).
| Meteorological history | |
|---|---|
| Duration | 22 May 2026 – Ongoing |
| Heat wave | |
 Thematic radiometer imagery of surface temperature captured by Copernicus Sentinel-3 on Tuesday 26 May 2026 | |
| Max temp | 46.5 °C (115.7 °F), recorded at Noto, Sicily, Italy on 22 July 2026[1] |
| Overall effects | |
| Fatalities | approx. 36,210: |
| Damage | €180 billion[20] |
| Areas affected | Europe |
A second, more severe heatwave began on 17 June, just days before the summer solstice.[a][27] In France, Météo-France declared 23 June the country's hottest day since measurements began in 1947, with temperatures reaching 44.3 °C (111.7 °F) in Pissos, 42.1 °C (107.8 °F) in Bordeaux, and a June record of 40.9 °C (105.6 °F) in Paris.[28][29] In the United Kingdom, temperatures peaked at 38.0 °C (100.4 °F). On 26 June, the World Meteorological Organization said the heatwave was expected to affect many areas of western, central, and southern Europe over the following two weeks, with the focus of the heat likely to shift towards the Balkans.[30] By 5 July[update], over 5,600 excess deaths were reported.[citation needed] Analysis by World Weather Attribution concluded it was the most severe heatwave ever recorded over the region studied, and that it was "virtually impossible" to explain its greater intensity relative to the 1976 Britain & Ireland heatwave without accounting for climate change in Europe.[31]
A third heatwave in the United Kingdom began on 4 July.[32] The UK Health Security Agency implemented many heat-health alerts across England.[33] The first areas of England officially met heatwave conditions during the morning of 6 July as temperatures in parts of south-eastern England exceeded 28 °C (82 °F) for the third consecutive day; temperatures peaked at 34.0 °C (93.2 °F) in Teddington.[34] Temperatures peaked at 35.5 °C (95.9 °F) in Wisley, Surrey on 9 July, which the Met Office reported was the eighth day above 34 °C (93.2 °F) in 2026, marking a new UK record for the most days exceeding that temperature in a single year.[35] The length of this heatwave has led to 'extreme' marine heatwaves, affecting the southern North Sea and parts of the English Channel, which could have potentially negative impacts on marine life.[36]
The heat also caused many forest fires across Europe.[37] The heatwaves have also caused widespread drought across Europe.
The Elbe, Rhine and Danube experience a severe drought and[38] a record shallowness in the Balkans on 10 August.[39]
Concerns were raised over rivers becoming too hot and shallow for atomic power stations to use in future years.[40]
Public discussion focused on climate change adaptation, net-zero emissions goals, and the role of air conditioning in Europe, where the technology is used much less than in both China and the US.
By country
Albania
Temperatures in Albania hovered between 35–40 °C (95–104 °F) on 23 June.[41] The Ministry of Health put out a heat warning on 24 June.[42][43] Berat and Gjirokastër reached 40 °C (104 °F), but the national average fell to 39 °C (102 °F) on 6 July.[44]
Andorra
Civil Protection issued a temperature related yellow alert on July the 18th, due to forecasted temperatures of 30 °C and 33 °C.[45]
The May 23rd-29th caused several temperatures over 30 °C.[46] Civil Protection issued a temperature related alert.[46]
28th
29th
- Roc de Sant Pere hit 32.3 °C[46]
- Andorra la Vella 32.3 °C[46]
Austria
May and June
In May, new temperature records were set at 46 GeoSphere Austria stations. Of those, Lienz had the highest temperature, recording 33.3 °C (91.9 °F) on 26 May. The city also had a record eight hot days in May, each with a temperature of at least 30 °C (86 °F), beating the previous record of three set in 2001. Bregenz and Eisenstadt had also set the new record for the highest number of hot days in May. Additionally, May had significantly below-average rainfall, with some regions being between half and two-thirds below the 1991–2020 average. May was also the fifth sunniest on record.[47]
On 18 June, GeoSphere Austria announced that a heatwave was imminent, with highs between 30 and 36 °C (86 and 97 °F) expected to persist through the end of the month.[48] On 20 June, temperatures reached 35 °C (95 °F) at five GeoSphere Austria stations and a temperature of 36.0 °C (96.8 °F) was recorded in Bad Deutsch-Altenburg, marking the first time the value had been reached in Austria in 2026.[49] On 21 June, GeoSphere Austria recorded a temperature of at least 35.0 °C (95.0 °F) at 18 stations in its network, which included a temperature of 36.6 °C (97.9 °F) in Bad Deutsch-Altenburg and a temperature of 36.1 °C (97.0 °F) at a further two stations.[50]
On 24 June, GeoSphere Austria announced that temperatures were expected to exceed 35 °C (95 °F) in all state capitals and reach 39 °C (102 °F) in Vienna on both 27 and 28 June. As a result, the highest heat warning would be in effect for much of northeastern Austria, including Vienna, as well as for the southern cities of Graz, Klagenfurt and Villach, whilst the second-highest heat warning would be in effect for other parts of the country.[51] The Austrian Grand Prix, a Formula One race taking place at the Red Bull Ring on 28 June, was declared a heat hazard by the FIA as temperatures at the circuit were expected to reach 36 °C (97 °F) during the race.[52][53]
On 27 June, a temperature of 39.3 °C (102.7 °F) was measured in Bad Deutsch-Altenburg, breaking a previous national June temperature record that was set in 2013, when a temperature of 38.6 °C (101.5 °F) was measured in Waidhofen an der Ybbs.[54] The same day, new June temperature records were set in six out of nine states of Austria, with the previous national June temperature record also surpassed in Vienna and Innsbruck, where temperatures reached 38.8 °C (101.8 °F) and 38.7 °C (101.7 °F), respectively. A temperature of 38.2 °C (100.8 °F) was measured in Bad Goisern, whilst Eisenstadt reached 37.9 °C (100.2 °F).[55]
On 28 June, temperatures exceeded 39 °C (102 °F) at several stations in Lower Austria and Vienna, as June temperature records were broken nationwide at 102 of 251 stations that have been active for more than 15 years. That day, a temperature of 40.0 °C (104.0 °F) was measured in the Innere Stadt district of Vienna, which set a new June temperature record for Austria and marked the first time the value had been reached in the capital since records began. Outside Vienna, a temperature of 39.9 °C (103.8 °F) was measured in the Langenlebarn area of Tulln, Innsbruck reached 38.7 °C (101.7 °F) for the second consecutive day, Linz was one of three places in Upper Austria where a temperature of 38.2 °C (100.8 °F) was measured, alongside Enns and Wels, and the same temperature was recorded in Eisenstadt, the state capital of Burgenland.[56][57]
On 29 June, it was reported that nighttime temperatures did not drop below 20 °C (68 °F) at 90 of 280 stations nationwide and a station in the Ottakring district of Vienna did not register temperatures below 27.3 °C (81.1 °F), which set a new June record for the highest nighttime temperature since the beginning of record-keeping in Austria.[58] The same day, highs in excess of 38 °C (100 °F) were recorded at several stations, with a temperature of 40.1 °C (104.2 °F) measured in Bad Deutsch-Altenburg, which surpassed the national June temperature record set in Vienna the day before and marked the first time since the beginning of record-keeping that a temperature in excess of 40 °C (104 °F) had been measured in Austria on two days.[59][60]
The heatwave lasted 14 days and ended on 1 July, with severe thunderstorms affecting parts of northeastern Austria that day.[61] During the heatwave, which was the longest to affect Austria in June, new local temperature records were set at 60 of 251 stations that have been active for more than 15 years, whilst an additional 88 of the 251 stations set new June temperature records for their respective locations. At the state level, June temperature records were broken in all Austrian states except Carinthia. Historically, this June was more than 2.5 °C (4.5 °F) warmer than the 1991–2020 average for Austria and the fifth-warmest on record.[62]
July and August
On 29 July, a new heatwave began in Austria, the second of the year nationwide. In western and southern Austria, the heatwave was the third of the year, after an early heatwave that began on 24 May and lasted between five and nine days. It was initially expected to reach its peak on 31 July and, similarly to the June heatwave, be most intense in the lowlands of eastern Austria, where temperatures were predicted to reach between 38 and 40 °C (100 and 104 °F).[63] Drought was felt in various regions of the country and there was a heightened risk of wildfires associated with it, with such conditions mainly resulting from the fact that, as of 27 July, the amount of precipitation since December 2025 was approximately 30 percent lower than the average needed to prevent drought.[63] As of 29 July, there were just three of 2,114 municipalities in Austria that did not experience at least one day with a temperature of 30 °C (86 °F) or higher, with several municipalities experiencing more than 30 such "heat days" in 2026.[64]
On 31 July, GeoSphere Austria measured a temperature of 40.3 °C (104.5 °F) in Wieselburg in Lower Austria, which set a new national record for the highest July temperature, surpassing a 1983 record of 39.7 °C (103.5 °F) in Dellach im Drautal in Carinthia. It also set a new July temperature record for the state of Lower Austria for the first time since 1957, when a temperature of 39.4 °C (102.9 °F) was measured in Horn. At the state level, July temperature records were also broken in Vienna and Upper Austria, as temperatures exceeded 39 °C (102 °F) at several GeoSphere Austria stations. Preliminary data suggested that at least 30 of these stations set a new yearly record.[65]
On 3 August, GeoSphere Austria measured a temperature of 40.1 °C (104.2 °F) in the Stammersdorf area of Vienna, marking the second time the value had been reached in the capital in 2026 and setting a new temperature record for the location.[66][67] The service measured temperatures in excess of 38 °C (100 °F) at several of its stations in northeastern Austria, including a temperature of 40.0 °C (104.0 °F) in the Langenlebarn area of Tulln, with Eisenstadt and St. Pölten both reaching 38.8 °C (101.8 °F) as the highest temperature for a state capital outside Vienna.[66]
On 4 August, a temperature of 41.0 °C (105.8 °F) was measured at the aforementioned station in the Stammersdorf area of Vienna, which broke a 2013 record of 40.5 °C (104.9 °F) in Bad Deutsch-Altenburg for the highest temperature measured in Austria since records began. It was one of nine GeoSphere Austria stations to measure a temperature in excess of 40 °C (104 °F) that day.[68][69] The record lasted just one day, as the service measured a temperature of 41.2 °C (106.2 °F) at its station in Bad Deutsch-Altenburg on 5 August. It was among five stations in its network to register a temperature in excess of 40 °C (104 °F) that day. Also among the five stations was the one in the Stammersdorf area of Vienna, which measured a temperature of 41.0 °C (105.8 °F) for the second consecutive day.[70][71]
On 10 August, water levels along the Danube in Austria were reported to be significantly lower than typical, leading to the cancellation of around 30 percent of all Austrian cruises along the river.[72] Water levels in the Danube measured at a station in Hainburg an der Donau were the lowest since the station began operations in 1976, with the lowest values for both July and August being significantly lower than those recorded both during the 2003 European heatwave and on multiple occasions during autumn and winter, when water levels in the Danube in Austria typically reach their yearly lows.[73] As a result of the drought that had intensified after the June heatwave and persisted into August, farmers warned of a significantly reduced harvest. In late July, the Austrian Chamber of Agriculture expected a decrease of 15 to 20 percent in the grain harvest compared to the previous year and one of the worst harvests in the last 10 years.[74] In mid-August, estimates by AgrarMarkt Austria suggested a decrease of 19 percent in the grain harvest for 2026 compared to 2025.[75] On 11 August, it was reported that the climate data since 1961, available to GeoSphere Austria, indicated the longest and most consistent yearly deficits in precipitation for eastern Austria in the last 65 years.[76]
On 13 August, it was reported that there were approximately 270 forest fires in Austria in 2026, representing an increase of almost 50 percent compared to the previous year and burning approximately five times more area than during an average year, as researchers at the International Institute for Applied Systems Analysis (IIASA) warned of forest fires becoming more common in Austria in the coming years due to climate change. At the time, a forest fire near Wiener Neustadt required several days of firefighting efforts to be extinguished.[77]
On 16 August, temperatures in excess of 36 °C (97 °F) were still being recorded at several stations in northeastern Austria, including Vienna, as the heatwave that had begun on 29 July was expected to end with the arrival of a cold front the following day.[78][79]
Belarus
The air temperature in the south of Belarus was predicted to reach +30-31 °C on 14 July.[80] Belhydromet predicted heavy thunderstorms and issued a yellow alert in response.[81]
For the first time in history, the temperature in Belarus rose above 40 °C (104 °F). This historical maximum was reported in the town of Pinsk, with a recorded temperature of 40.4 °C (104.7 °F) between 2:00 pm to 2:20 pm on 29 June, as reported by the Republican Centre for Hydrometeorology, Control of Radioactive Contamination and Environmental Monitoring.[82]
On 6 August, the air temperature rose above 40 °C for the second time in the country's history in the town of Mazyr, where the temperature reached 40.3 °C (104.5 °F).[83]
Belgium
A heatwave is reached when temperatures reach at least 25 degrees for 5 days in a row, with at least 3 of those days reaching 30 degrees or more in Uccle.[84]
Between 23 and 25 May, Uccle recorded temperatures of over 28 °C (82 °F). Locally in Brussels, temperatures peaked 31 °C (88 °F) on 25 May.[85] On 26 May, Uccle broke the daily temperature record set in 1985 and peaked at 30.3 °C (86.5 °F).[86]
The heatwave in the second half of June brought higher temperatures. Between 20 and 25 June, temperatures in Uccle reached 35.3 °C (95.5 °F). Forecasts predicted even higher temperatures, but it never exceeded that peak.[87] On 24 June, Belgium set a price record of over €1 per kWh electricity at sunset, as traditional power stations were maxed out to cope with increased air conditioning.[88]
On 26 June, the annual Battle of Waterloo reenactment was cancelled.[89][90] On 27 June, Katy Perry's performance at the Werchter Boutique festival was cancelled due to severe thunderstorms in the Benelux area.[91]
Between 18 and 29 June, the excess mortality rate in the country was 39 percent, with 1,222 excess deaths reported during the heatwave.[92][93] A report by Sciensano published on 8 July reported 1.747 excess deaths between 18 June and 1 July, with the excess mortality rate climbing to 48 percent. Making it the deadliest Belgian heatwave in the last 30 years.[94]
While temperatures didn't go below 25 degrees between 6 and 17 July, a heatwave was not reached in Belgium as only 2 days above 30 degrees were recorded with the RMI recording 29,9 degrees on Saturday 11 July.[95]
Bosnia and Herzegovina
June heatwave
FHMZ forecasted very high temperatures in Bosnia by the end of June 2026 projecting it as high as 41 °C (106 °F).[96] On 28 June, Mostar recorded a temperature of 41 °C (106 °F), making it the highest national temperature of the month in 2026.[97] However, an unofficial reading recorded the temperature as high as 50 °C (122 °F), mainly on asphalt surface.[98] The unofficial temperature was reached in 2012,[99] 2017,[100] 2022,[101] and 2024.[102] The temperature in Mostar the day prior was 39 °C (102 °F).[103]
July–August heatwave
After a cooling period of rain and thunderstorms, another heatwave struck Bosnia on 30 July in which Mostar and Široki Brijeg recorded a temperature of 42 °C (108 °F).[104] On the same day, Trebinje recorded a temperature of 39.6 °C (103.3 °F) breaking the previous record set in 2000.[105] Projections estimated that in the week from 30 July to 5 August, temperatures would go as high as 43 °C (109 °F).[106] On 31 July, six cities recorded temperatures above 35 °C (95 °F) with Mostar recording a temperature above 40 °C (104 °F) for the second time consecutively.[107] New projections estimated temperatures as high as 44 °C (111 °F).[108] On 1 August, Mostar recorded a 41 °C (106 °F) temperature for the second time consecutively and was for the third day consecutively above 40 °C (104 °F).[109] On 4 August, Mostar recorded 40 °C (104 °F) as it was on its sixth day consecutively above the temperature.[110] On the same day, five cities were above 35 °C (95 °F).[111] On 5 August, Mostar was above 40 °C (104 °F) for seven days consecutively.[112] The day after, 11 cities recorded temperatures above 35 °C (95 °F) with Mostar recording a temperature of 43 °C (109 °F) as the city was for nine days above 40 °C (104 °F).[113][114] Mostar also had the highest morning temperature recorded at 30 °C (86 °F) at 8:00 AM.[115]
August heatwave
In late August, another heatwave struck Bosnia with the highest morning temperature recorded in Gradačac at 31 °C (88 °F), followed by a subsequent new all-time high record of 41 °C (106 °F), breaking the previous one set in 24 July, 2007.[116][117] Projections estimated local temperature as high as 42 °C (108 °F) by the end of the month.[118] During the heatwave, dust from Sahara engulfed Bosnia, including Sarajevo. Mostar recorded a temperature of 39 °C (102 °F) on 27 August.[119]
Subsequent fires
Multiple regions in Bosnia were hit by fires as a result of the heat. Between 30 and 31 July, fires broke out in Široki Brijeg, Teslić, and near Banja Luka. Local residents were instructed to remain on high alert to the increased risk of fires.[120][121][122] On 23 August, a fire broke out on Trebević near Sarajevo.[123] After it was put under control, it broke out again on 26 August.[124] One person was evacuated during the fire.[125]
Water supply in Sarajevo
Following persistent irrational consumption of water in the midst of the heatwave, KJKP ViK Sarajevo, on 20 August, formed special teams to patrol households in order to stabilize the water supply.[126] As a result of fuzzy waters and low yield in Mošćanica and Crnil springs, on 30 August, ViK Sarajevo imposed regulated daily water supply cuts from 1:00 AM to 5:00 AM and from 11:00 AM to 4:00 PM.[127] Locals complained about the lack of information sent in advance by ViK Sarajevo about the sudden water supply cuts.[128]
Bulgaria
Wfy24 meteorologists reported that the Danubian Plain in Bulgaria was approaching 38 °C (100 °F) during late June 2026.[129]
Bulgaria was predicted on 26 June 2026, to hit by temperatures of up to 38 °C over the next week ad a Code Red heat alert was issued that day.[130]
Temperatures were between 32C and 37C on 30/07/2026 and were expected to reach 43C that week end.[131] The National Institute of Meteorology and Hydrology (NIMH) recorded temperatures of 40C. om August 3 and predicted 42C. to 43C. for the next few days.[131]
Subsequent fires
Many of them were accidents or neglectfully used portable barbeques, but many were considered to be arson.
Devastating forest fires, mostly caused by arsonists, swept the country on 23 July 2026.[132]
Fires still raged around Sliven, Burgas, Plovdiv, Stara Zagora, Yambol, Haskovo, Blagoevgrad and Kyustendil Bulgaria on 27.07.2025.[133]
Several social media posts, epically on X condemned the fire raising and arson attacks on August 1.[134]
Croatia
Croatia experienced a heatwave in the second half of June. In its weather forecast for 19 June, the Croatian Meteorological and Hydrological Service (DHMZ) reported that temperatures were expected to reach 32 °C (90 °F) in central Croatia and up to 34 °C (93 °F) in some areas along the coast, with sunny and hot weather likely to continue for several days. In coastal areas, temperatures were expected to remain between 21 and 24 °C (70 and 75 °F) during the night as well.[135]
On 26 June, DHMZ issued a red alert for much of Croatia's coast, reporting that temperatures were likely to reach 34 °C (93 °F) in most of the country and up to 36 °C (97 °F) in its southern parts, and expecting the heatwave to reach its peak by 28 June, when highs of 39 °C (102 °F) were predicted to occur in the country's interior. In coastal areas, temperatures were expected to remain above 25 °C (77 °F) during the night as well.[136]
On 28 June, DHMZ recorded highs in excess of 36 °C (97 °F) in many parts of the country, both along the coast and in the interior, with a temperature of 37.5 °C (99.5 °F) measured in Imotski, followed by 37.0 °C (98.6 °F) in Senj.[137] On 29 June, temperatures rose to between 36 and 38 °C (97 and 100 °F) in several cities around the country, Osijek reached 38 °C (100 °F), following multiple days on which highs in excess of 35 °C (95 °F) had been recorded in eastern Croatia, whilst a temperature of 39 °C (102 °F) was measured in both Senj and Cres.[138]
On 30 June, temperatures reached 39.5 °C (103.1 °F) in Split, which broke a July 1950 record of 38.6 °C (101.5 °F) for the highest temperature measured in the city, as local June temperature records were also broken in Šibenik and Zadar. During the same day, a temperature of 41.0 °C (105.8 °F) was measured in Knin, surpassing a 2022 record of 40.4 °C (104.7 °F) for the highest June temperature measured in the city.[139][140] Temperatures in excess of 38 °C (100 °F) were recorded in many places along the coast, as well as in eastern Croatia, with highs of 39.8 °C (103.6 °F) at Osijek Airport and 38.8 °C (101.8 °F) in the city of Osijek, respectively.[140][141] Late in the afternoon, a storm caused by the heat affected parts of Dalmatia.[141]
On 1 July, temperatures were expected to reach between 32 and 37 °C (90 and 99 °F), as thunderstorms began to occur in many parts of Croatia in the afternoon, eventually ending the heatwave that, according to DHMZ, had begun on 20 June in northern parts of the Croatian coast.[142][143]
Another heatwave in Croatia began on 30 July, when the highest heat warning was in effect for Rijeka and the surrounding region. Hot and sunny weather was expected to affect most of the country in the coming days and persist into the first week of August, with temperatures predicted to reach between 35 and 40 °C (95 and 104 °F) on 1 August, and stay around 25 °C (77 °F) or higher overnight in some areas, especially along the coast.[144] According to a weather forecast published on 30 July, the heatwave was likely to last at least one week. Temperatures were expected to reach 37 °C (99 °F) in eastern Croatia on 31 July, with highs between 33 and 38 °C (91 and 100 °F) predicted to occur along and near the coast the same day. Highs of 40 °C (104 °F) were likely to occur in the Dalmatian Hinterland on both 1 and 2 August.[145]
On 6 August, the heatwave reached its peak in eastern Croatia, with a temperature of 40.0 °C (104.0 °F) measured at Osijek Airport.[146] At the time, it was also reported that the waters in the Drava and the Danube in the region had fallen to the lowest levels for years, mainly due to a combination of long-standing heat and a lack of precipitation.[147]
On 11 and 12 August, intense heat spread along the Croatian coast, with several stations setting new local temperature records, including a temperature of 39.8 °C (103.6 °F) in Senj and temperatures of 40.1 °C (104.2 °F) and 40.2 °C (104.4 °F) in Dubrovnik and Split, respectively.[148]
Subsequent fires
Late on 28 June, a forest fire broke out on the island of Vis, requiring an all-night firefighting operation with 15 vehicles and 70 firefighters. On the morning of 29 June, four aircraft arrived to assist in the firefighting operation and the fire was localised during the same day. Approximately 300 ha (740 acres) of pine forest and macchia were affected, although no inhabited buildings were damaged.[149]
On 30 June, fires broke out on the island of Čiovo and near Orebić on the Pelješac peninsula as a result of lightning strikes during thunderstorms in the region.[150] The following day, it was reported that the two fires were under control. However, there were several other fires in southern Croatia and firefighters warned of an increased number of wildfires compared to the previous year.[151] The fire on the island of Čiovo reignited on 2 July and was not declared extinguished until the morning of 11 July. By then, it had burnt approximately 120 ha (300 acres) of landscape covered with grass, macchia and pine forests.[152][153]
On 4 July, a fire broke out on the island of Hvar, affecting approximately 200 ha (490 acres) of landscape covered with grass, macchia and pine forests, and requiring an extensive firefighting operation involving dozens of vehicles and four aircraft.[154] The following day, it was reported that the fire was under control. It was the second fire to affect the island in two weeks and one of its most devastating fires in approximately a decade.[155]
On 11 July, two fires affected a pine forest on the island of Korčula. They merged into a single fire later that day, prompting an extensive firefighting operation overnight. Approximately 170 firefighters were initially involved. They received assistance from four firefighting aircraft on the morning of 12 July.[156] On 13 July, it was reported that the fire was under control after it had burnt almost 900 ha (2,200 acres) of mostly forested landscape and spread over an area approximately 4 km (2.5 miles) wide.[157]
On the evening of 13 August, strong winds caused a fire to affect approximately 1,000 ha (2,500 acres) of landscape in just four hours and quickly spread towards the town of Omiš, leading to extensive damage to buildings, destroying numerous vehicles and prompting the evacuation of approximately 1,200 residents and tourists in the area. On 15 August, the fire was reported to be under control, leaving at least one person dead and dozens injured, of whom eight people were hospitalised with life-threatening burns.[158][159]
On 14 August, a fire broke out on the island of Dugi Otok, burning approximately 300 ha (740 acres) of forest and macchia before it was localised during the afternoon of 15 August.[160]
Cyprus
Two boys from Bulgaria died locked in a hot car in Cyprus on June 29 as temperatures hit around 38 °C.[19]
Electricity started to be cut in rolling power cuts on July 29 as the power grid began to collapse.[161]
Czech Republic
On 27 June, the Czech Republic recorded its hottest day on record, with 40.9 °C (105.6 °F) recorded in the town of Doksany.[162] The record held only for one day as the following day, 28 June, 41.9 °C (107.4 °F) was measured at Doksany, the first reading of 41 °C (105.8 °F) in the official Czech station network.[163]
Denmark
On 27 June, Denmark's all-time temperature record was initially broken with 36.6 °C (97.9 °F) north of Odense. Record-keeping had begun in 1874.[164] The temperature reached 37.0 °C (98.6 °F) in Ødum, north of Aarhus and in Beldringe, north of Odense.[165]
A second heatwave officially began on 11 July, when temperatures reached 29.8 °C (85.6 °F) in Ødum.[166]
Estonia
On 28 June, the Estonian Weather Service issued a Level 1 (Yellow) alert for the entire country in anticipation of thunderstorms and "scattered severe weather",[167] and advised caution during outdoor activities, given a forecast high of 30 °C (86 °F) by the end of the weekend.[168]
Faeroe Islands
It was confirmed on 15 July that the islands had avoided the heat wave up to that date, and would probably continue to do so.[169]
Finland
Finnish scientists warn of the impact of climate change on 26 June 2026.[170] Finland had not been affected by the heat wave as of 26 June 2026. [170]
France
In May, there were reports of record-breaking temperatures.[171] The national average was 24.9 °C (76.8 °F) on 26 May, the hottest May on record. The heat dome continued with Angoulême-La Couronne recording a temperature of 37.8 °C (100.0 °F) on 28 May.[172] Seven heat-related deaths occurred in May.[173]
Beginning on 22 June, overnight temperatures were the hottest since records began in 1947, and Météo-France issued a heatwave red alert for 54 departments. The nationwide heat index, an average of the measurements from 30 weather stations of the day and nighttime highs, provisionally reached 29.8 °C (85.6 °F). The single highest temperature was 44.3 °C (111.7 °F) in Pissos, with parts of Western France above 40 °C (104 °F). Bordeaux reached 41.1 °C (106.0 °F). Nearly half of metropolitan France was affected.[28]
Drowning deaths in France markedly increased.[174][175] On 26 June, Sports Minister Marina Ferrari stated in an interview with Le Figaro that two-thirds of the 55 people that had drowned had been swimming in unsupervised or unauthorized areas,[176][90][175] and emergency services reported 61% more calls than the previous week, and 75% more than the same time last year.[177] The historic Canal Saint-Martin in the centre of Paris was opened to public swimming; one man in an unsupervised area was found unresponsive.[178] Deaths include En Avant Guingamp footballer Kenzo Kies.[179] At least 18 died from related causes, including two children left in a hot car.[180] The heat forced 845 junior and middle schools to close, and a further 1,800 to adjust their teaching schedules.[181] Around 68,000 households in France experienced power outages.[182]
By 24 June, two-thirds of France was under a red alert.[183][184] On 25 June, 72 of the 96 Metropolitan France departments—75%—were under red alert. Paris mayor Emmanuel Grégoire announced (without giving specific figures) that nearly all of the "critical indicators" were up: calls to emergency medical services and fire brigades, ER admissions, and deaths.[185] Two nuclear power plants were shut down,[185] and later a third. On 25 June, the French Ministry of Health announced that 44 cardiac arrests had occurred in Paris on 24 June, and that there had been a fourfold increase in ER visits for heat-related reasons nationwide.[6][186]
In the morning of 25 June, a rare heat burst event was observed at Belle-Île. Temperature rapidly increased from 26 °C (79 °F) to 34 °C (93 °F) when the high-altitude air of the dissipating thunderstorm crashed down at over 100 km/h (62 mph). The whole fluctuation took place in the span of less than an hour.[187]
On 26 June, Enedis stated that 50,000 of its clients were without power.[177] In Paris, police chief Patrice Faure stated that emergency services were overwhelmed by heat-related illnesses, with the head of the Association of French Emergency Doctors specifying that 55 people had died under emergency care in 24 hours, the normal number being three or five.[188] SAMU announced that 109 people have died in Paris in 24 hours, against seven normally at this time of the year.[189]
The city announced restrictions on alcohol from 26 to 28 June, with public consumption of alcohol (excluding outdoor seating areas at licensed establishments) prohibited from 12:00 to 07:00, and sales of takeaway alcohol prohibited from 18:00 through the following morning from Friday through Sunday.[190][191] Paris Pride (which was postponed to September) and the Solidays music festival were cancelled following requests by Paris Police Prefecture,[192] along with Ironman Nice.[193] World Athletics stated that the Diamond League Meeting de Paris would still go on, but with non-professional events cancelled, and adjusted start times among other measures agreed upon by the prefecture. The Top 14 rugby union final was also expected to go on, but with alcohol sales prohibited at Stade de France.[194]
On 28 June, the French national health authority (Haute Autorité de santé) announced that 1,000 additional deaths were recorded compared to the totals for previous months, a figure expected to rise,[195] and the interior minister, Laurent Nuñez, noted that the ambulance services had responded to more than 122,000 calls during the height of the heatwave. Those 65 and older and/or shut-ins had the highest rise in death rates. Finally, severe lightning storms hit much of northern France in the immediate aftermath of the heatwave;[196][197] wildlife also suffered.[198] An estimate by Dr Christopher Callahan, a climate scientist at Indiana University, found that the heatwave had killed more than 5,000 people in France between 22 and 28 June.[9] 10,000 excess mortality deaths have been recorded between June 17 and July 2.[199]
Between 24 and 26 June the temperature hit 40 °C (104 °F). The previous temperature records, with measurements starting from the 19th century, were in 1947, 2019, and 2022. One deputy mayor of Paris, Audrey Pulvar, noted that the assumption had been that such heat could be possible in 2030, following two abnormally warm decades.[200]
In mid-July during a third heatwave the Louvre, the Eiffel tower, and other tourist destinations again curtailed their hours, and the Tour de France shorted a portion of its racing route through hilly terrain, the first time in its history it had taken such a measure. Of the nation's departments, 24 were under the maximum heat alert.[201]
Subsequent fires
The heatwaves have heightened the risks of wildfires, with some starting in the north of France where wildfires are rarer, such as Fontainebleau.[202][203]
Forest fires hit the departement of Gironde on 5 August detonating some unexploded World War II ordnance around the village of Le Porge due to radial heat in the soil (the Goff Effect),[citation needed] while others were safely disposed of by the Bordeaux Explosive Ordnance Disposal Service.[204]
Outside Montpellier and in the municipality of La Tieule, 200 firefighters fought forest fires on 9 August 2026.[205]
Germany
May
Temperatures rose above 30 °C (86 °F) for the first time in 2026 on 23 May.[206] Increased cooling demands from the heatwave combined with the usage of more expensive power sources due to lower wind power generation caused day-ahead power prices to jump by 29% on 27 May.[207]
Many weather stations recorded new records for the number of days ≥30 °C (86 °F), especially in the southern half of the country. In the Upper Rhine region, six to seven hot days were recorded locally. Wutöschingen-Ofteringen, Baden-Württemberg, recorded nine hot days in May, more than double the previous record of four set in May 2005.[208] The highest temperature recorded in Germany in May 2026 was 34 °C (93 °F) in Regensburg, Bavaria, on 26 May.[209]
June
_Leipzig_heatwave_tram_track_repair.jpg)
Germany experienced another heatwave in the second half of June. Starting in the southwest, on 17 June temperatures already exceeded 30 °C (86 °F) at 25 weather stations, with a maximum of 32.7 °C (90.9 °F) at Müllheim, while two days later the heat was spreading over 441 stations (out of 505) with a maximum of 38.5 °C (101.3 °F) in Kitzingen.[210] On 20 and 21 June, it was reported that temperatures were expected to reach between 32 and 39 °C (90 and 102 °F) in central and southern Germany.[211][212] According to a weather forecast published on 23 June, the ongoing heatwave was likely to continue for at least one week as temperatures were expected to reach above 35 °C (95 °F) in most of the country by 26 June, with highs around 40 °C (104 °F) expected in the southwest.[213] On 25 June, the national railway network Deutsche Bahn offered its clientele free cancellation of reservations made before 23 June,[185][214] and later advised against travel in general due to the high risk, specifically from wildfires, heavy summer rain, and thunderstorms.[6]
One day later, 26 June, a new all-time national record high of 41.3 °C (106.3 °F) was measured in Saarbrücken[215] and already 23 weather stations were hitting the old record for June, which was measured on 30 June 2019 in Bernburg with 39.6 °C (103.3 °F).[216] This all-time record was broken again on 27 June in Drewitz, part of Möckern, in the northern part of Saxony-Anhalt reaching 41.8 °C (107.2 °F).[217]
By 27 June, 13 of the 16 German states had broken their all-time temperature records.[218] National Express suspended its regional railway service in North Rhine-Westphalia state for six hours, and more generally only essential travel was advised. Furthermore, the concrete in several areas of Germany's autobahn system expanded and burst open, leading to road closures for repair[164] and also the tram network in Leipzig had to suspend their services because of melting asphalt.[219][220] Near Hamburg the main traffic lane of the Bundesautobahn 7 (A7) was closed because the asphalt had split.[221] A motorway in Brandenburg and Saxony-Anhalt was closed on 30 June due to heat damage.[222] About 160 people had to be evacuated from a nursing home in Dormagen the night to Saturday 26 June, after temperatures reached 35 °C (95 °F) in the building. Two people died, and the incident is under investigation.[223]
On 28 June, temperatures reached 41.7 °C (107.1 °F) in Coschen, close to the Polish border.[196] In Gohrischheide, Saxony,[224] a wildfire broke out in a forested nature reserve contaminated with munitions from World War II.[196][225] Police in Berlin fired water cannons in the air to cool people off.[196] According to a final report by the German Weather Service (DWD), 46 official weather stations throughout the country recorded temperatures exceeding 40 °C (104 °F) during the height of the heatwave, while 252 stations broke their respective all-time historical records.[226]
German Health Institute RKI reported a cumulated number of heat-related fatalities of 810 in the weeks ending on 21 June.[227] Cities and districts in North Rhine-Westphalia recorded a high number of fatalities. Cologne recorded four times as many deaths on the weekend of 26 to 28 June compared to an average weekend. Numbers in Remscheid, Wuppertal and Solingen had been twice as high as usual. Emergency rooms had been overcrowded with people having health-related issues like sunstrokes, heat exhaustion and heatstrokes.[228]
July
On 30 July, temperatures rose to 40.5 °C. Three states recorded a new July record.[229]
Fatalities
By 28 June, the number of heat related fatalities reported by RKI was estimated at 5,120.[230] In mid-July the German lifeguard federation announced that there had been nearly 100 drowning deaths, most of whom were young men, and 40 of whom were younger than thirty, the most overall since the June 2003 heatwave.[201]
By 6 August, the number of heat related fatalities reported by RKI was estimated at 11,900. They note that the actual toll may even be much higher. The number of excess fatalities is reported as 14,600.[231]
By 27 August, Germany's Robert Koch Institute estimated 15,800 heat-related deaths during summer 2026, the highest total in a decade of monitoring, as repeated heat waves push temperatures above 40 °C (104 °F).[232]
Drought
Fears grew on 10/08/2026 that part of the Rhine would become too shallow to safely navigate in future years.[233][234][235]
Greece
Temperatures reached 42 °C on 18 July 2026.[236]
Temperatures neared 43 °C on 21 July 2026 and 43 °C the following day.[237][238]
The Hellenic National Meteorological Service (EMY) issued an orange heat warning as 43.5 °C was reached on 22 July 2026[239]
Subsequent fires
A forest fire threatened a village on the island of Paros on 29 July 2026.[14] Two firefighters died firefighting in Crete, and one elsewhere in Greece on 29 July 2026.[13] A forest fire killed two people near Thessaloniki on 1 July 2026. A forest fire outside Liti, about 15 km/9 miles north-west of the city of Thessaloniki killed two more people on 30 July 2026.[15]
A Greek and a Dane were killed by forest fire near Megara on 2 August.[12] Another fier hit the tourist island of Kefalonia[12] and village of Psatha, near Athens on the same day.[240]
The Greek fires had mostly been contained by 4 August.[241]
Hungary
Hungary experienced a heatwave in the second half of June. On 20 June, a temperature of 37.1 °C (98.8 °F) was measured in Aszód. Between 22 and 25 June, temperatures were expected to reach between 30 and 36 °C (86 and 97 °F), whilst the peak of the heatwave was expected to occur between 26 and 28 June, with highs between 32 and 38 °C (90 and 100 °F).[242]
On 27 June, a temperature of 40.0 °C (104.0 °F) was recorded in Budakalász, which marked the first time the value had been reached in Hungary in June, and a temperature of 40.7 °C (105.3 °F) was measured at the same station the following day. Also on 27 June, a temperature of 39.8 °C (103.6 °F) was recorded in the Újpest district of Budapest, which by far surpassed a 1935 record for the highest temperature measured in the capital on that date.[243]
On 30 June, a temperature of 42.0 °C (107.6 °F) in Szécsény set a new all-time temperature record for Hungary, surpassing a July 2007 record of 41.9 °C (107.4 °F) in Kiskunhalas.[244]
The Paks Nuclear Power Plant was shut down because of drought induced record low water levels in the Danube River on 3 August 2026.[245][40] Concern was raised over the impact river shrinkage and temporary could have on the cooling system of atomic power plants.[40] It was reactivated on 10 August 2026 as river water began to rise.[246]
Iceland
There was an unusually high temperature on 31 December 2025, and 1 January 2026.[247]
It was confirmed on 6 July 2026 that Iceland was not affected by the heat as of that date.[248]
Ireland
May
Ireland saw its highest May temperature on record broken on two consecutive days. Clonmel and Killarney recording 28.8 °C (83.8 °F) on 25 May, beating the previous May record of 28.4 °C (83.1 °F) in Kerry in 1997.[249] On 26 May, Shannon Airport in County Clare recorded a temperature of 30.6 °C (87.1 °F).[250] Temperatures at multiple other stations in the country hit 30.9 °C (87.6 °F) on the same day.[251] This broke the national record for May again. This was also the first time in history a temperature of over 30 °C (86 °F) was recorded in the month of May in Ireland.
On 27 May, temperatures rose above 30.0 °C (86.0 °F) for the second day in a row at Shannon Airport.
Met Éireann reported that the temperature in south Ireland was five standard deviations over the May average.[251]
June
A second heatwave that began building over western Europe on 17 June reached Ireland, with the heat hitting Ireland from the 20 June onwards.
Temperatures of 30 °C (86 °F) across the country were widespread, with that temperature being recorded on multiple days during the week beginning 21 June, reaching a peak on 25 June of 32.2 °C (90.0 °F) in Athenry.[252] The heat in June was deemed oppressive as the recorded dew point reached the mid 20s Celsius,[253] meaning that the outside air temperature often felt a lot hotter than recorded. The heat index in Galway rose to over 40.0 °C (104.0 °F) on 25 June,[254] while on multiple days in the same week across the east of Ireland and in cities like Dublin it reached over 36 °C (97 °F).[254]
June also saw tropical nights recorded in Dublin and Carlow. On the night of 25 June, temperatures did not fall below 20 °C (68 °F) at Casement Aerodrome or Oak Park.
July
After a short reprieve from heat, another high temperature warning was issued by Met Éirean on 7 July.[citation needed] The alert initially lasted for one week, however in parts of the south of the country, it was extended multiple times.
On 9 July, heatwave status was reached in Moorepark, Cork[255] with stations in Tipperary and Kilkenny following the next day as temperatures at these locations were above 25 °C (77 °F) for more than five days.
On 11 July, Valentia Island recorded a temperature of over 30 °C (86 °F), making it the hottest day ever recorded at the station.[256]
The hot spell in July became one of the longest in recorded history in Ireland, with Moorepark recording the second longest heatwave with 13 consecutive days, just one day short of the 1976 record of 14.[257]
However, the town of Clonmel provisionally recorded heatwave conditions for 18 consecutive days. If confirmed it would break the previous record.[258]
On the night of 28 July, a tropical night was again recorded in Dublin.
August
Above average conditions continued into the month of August. Met Éireann issued a fourth yellow weather warning for heat that summer on 12 August, remaining in place until 14 August.
The heat was mainly focused on the midlands and eastern half of the country. On 12 August, the Casement Aerodrome station in Dublin recorded a temperature of 31.2 °C (88.2 °F),[259] the highest temperature ever recorded in the month of August for the capital. Temperatures of over 30 °C (86 °F) were also recorded at Oak Park in Carlow, and in other southeastern counties like Wicklow.
The heat in August meant that a temperature of over 30 °C (86 °F) had been recorded in four consecutive months in Ireland, (May-August) making 2026 the first year to reach that milestone.
Official drought had been declared across the country with a hosepipe ban put in place by Uisce Éireann for six weeks from late July.
Italy
Red alert warnings were issued for Rome, Florence, Bologna, Brescia, and Turin on 28 May. Temperatures reached 38 °C (100 °F) in various cities. The thermal stress to the cables in the local grid led to repeated blackouts in Turin.[260]
On 24 June, red alerts were issued for 16 cities, including Rome, Milan, Florence, and Turin.[184]
On 25 June, courts in Palermo suspended all non-exigent proceedings due to malfunctioning air conditioning, and the newspaper Corriere della Sera reported five deaths.[6]
On 26 June, the ANSA news agency reported that Genoa was the 18th city to be placed under red alert, and the Uffizi Gallery extended a suspension of ticket sales and limited visiting hours.[261] Clam fishers on the Po River estuary reported macro algae growth, which they had to clean off their nets, a blue crab infestation, and a massive die-off of clams in the 21 °C (70 °F) waters. Sea water entered 20 kilometres (12.4 mi) upstream, and the flow of the Po River at large had collapsed from its June average of 1,500 m3/s (53,000 cu ft/s) to 300 m3/s (11,000 cu ft/s). The environmental group Legambiente calculated less than three weeks of water reserve.[262]
48.4°C was recorded at Casteltermini, Italy.[263]
46.5 °C (115.7 °F) then recorded at Noto, Sicily, Italy on 22/07/2026.[1]
Subsequent fires
A large forest fire hit Tuscany on May 1, leading to thousands of people being evacuated.[264]
Forest fires occur across Italy on 31/07/2026, with multiple fires in Sardinia, Piedmont and Sicily.[265]
Kosovo
A new temperature record for Kosovo was recorded in Hani i Elezit, at 41.6 °C. Other high temperatures were at Klinë 42.5 °C, Gjakova 40.7 °C, Rahovec 40.2 °C, Suhareka 40.4 °C, Prizren 40.3 °C, Pristina 38.4 °C, Mitrovica 39.0 °C, Gjilan (39.6 °C), Kamenica (39.7 °C) and Skenderaj (38.7 °C) on 25 July 2025.[266]
Latvia
The Latvian Environment, Geology and Meteorology Centre (LVĢMC) forecast tropical nights for 27–29 June, with the highest minimum not dropping below 30 °C (86 °F).[267] Thunderstorms are expected to form on 29 June.[268]
Liechtenstein
Temperatures in Vaduz were forecast to be between 27 °C and 35 °C over the next 6 days from 30 July, along with thunderstorms. (30 July - 6 August).[269]
The all-time high was at Vaduz at 36 °C (97 °F) on 13 August 2003.[270]
Lithuania
The Lithuanian Hydrometeorological Service anticipated highs of 37 °C (99 °F) for the weekend of 26–27 June[271] and thunderstorms shortly thereafter. A maximum of 30 °C (86 °F) for one or two days is the criteria is a notable meteorological event with public health implications; such temperatures for three or more consecutive days is a kaitra, an extreme heat event.[272]
Luxembourg
A level 3 heatwave alert and 16/06/2026 as temperatures were forecast to reach 39 °C.[273] The temperature reached 40 °C on 27.06.2026.[274]
May records were met at several stations run by the Rural Economy and Agriculture Authority on 26 May, though none beat the national May record.[275] On 26 June, 38.6 °C (101.5 °F) was recorded at Findel Airport, setting a new maximum temperature record for June.[276] On 27 June, 41.4 °C (106.5 °F) was recorded by the Rural Economy and Agriculture Authority. This was a new all-time record for Luxembourg beating 40.8 °C (105.4 °F) from 2017.[277]
Malta
Temperatures were 27 °C on 14 July and 28.8 °C on 20 July.[278] A new was record temperature of 43.3 °C on 19 July.[279] The power supply grid collapsed on 23 July.[280][281]
Montenegro
Animal welfare activists in Montenegro warned of the heat killing animals and pets as temperatures hit 40 °C. in the capital on 30 June 2026.[282]
Temperatures hit 40 °C in the capital on 15 July 2026.[283]
Subsequent fires
A major forest fire hit the Herceg Novi municipality on 29 June 2026.[284]
Moldova
Moldova experienced "extreme heat" in late June. Emergency shelters were set up by the General Inspectorate for Emergency Situations on 28 June, with 3,567 people receiving assistance there on 28 and 29 June. Rescue workers also distributed 1,133 litres of water.[285]
2,447 people sought assistance in shelters on 29 June in Chișinău and across various districts, such as Anenii Noi, Cahul, Ștefan Vodă, Cantemir, Ialoveni, Căușeni, Hîncești , Leova, Taraclia and Cimișlia. The shelters were in Chișinău on 30 June, in the sectors of Botanica, Rîșcani, Buiucani, Ciocana and Centru.[285]
Emergency medical teams responded to 19 heat-related emergencies between 22 and 28 June. Thirteen people suffered heatstroke, and six cases of syncope were recorded. A yellow heat warning was issued for southern Moldova on 22 June. On 30 June, the same heat warning was issued for northern Moldova, with an orange warning in effect for central Moldova and a red warning in effect for southern Moldova that day.[286]
Villages in Moldova were deserted by noon, and most activities, including farming, had to be done in the morning. Traders and shopkeepers reported a record sale of ice cream, mainly purchased in the evening, when temperatures were lower.[287]
A yellow heatwave warning was issued in Moldova on 4 July, with temperatures reaching 35 °C (95 °F) in the south.[288]
Netherlands
In the Netherlands, a heatwave is defined as five consecutive summer days of at least 25 °C (77 °F), of which at least three reach tropical-level heat (30 °C (86 °F)).[289] During such occasions, the National Heatwave Plan is activated by Dutch public health institute RIVM,[290] ProRail and the NS runs fewer trains as a precautionary measure.[291] The heat also necessitated water spraying to keep the drawbridges across the canals functioning,[292][293][294] as well as preventing road surfaces from thermal buckling.[295][296] "Winter" salt trucks were also deployed for increasing albedo and lowering the risk of asphalt softening.[297][298]
May
On 26 May, the temperature in Ell reached 30.7 °C (87.3 °F), becoming the hottest ever on that calendar day.[299] This was also the third consecutive day with tropical-level heat, thus it classified as the first regional heatwave of 2026.[300]
June
The first national heatwave, or the second regional heatwave, began on 18 June, when the temperature in De Bilt reached 29.6 °C (85.3 °F). A day later, the temperature in De Bilt rose to 33.4 °C (92.1 °F), marking the first tropical day. After several summer days, the second tropical day followed on 24 June with 34 °C (93 °F). As of 29 June, data concluded this as the longest-ever-recorded consecutive heatwave in the Netherlands, lasting 11 days until 1 July.[301] This is also the longest regional "super-heatwave" which lasted six days.[302]
July
The third regional heatwave began on 13 July. In places like Gilze en Rijen, temperatures crossed the 25.4 °C (77.7 °F) threshold, fulfilling the 5-day consecutive warmup requirements for KNMI classification. Further south and east, in Volkel, Horst, Ell, and Maastricht, the mercury surged past 30 °C (86 °F).[303] The RIVM national heat plan was also reactivated.[304]
August
A fourth regional heatwave began on 28 July and ended on 06 August.[305][306] The KNMI issued a yellow warning for the entire country, as temperatures up to 36 °C (97 °F) were forecast.[307] The fifth regional heatwave began on 08 August and is as of 14 August still ongoing, equalling the 1947 record of five regional heatwaves in one year.[308][309] The KNMI issued a yellow warning for the entire country, as temperatures up to 38 °C (100 °F) were forecast.[309]. The ongoing heat in August also broke the 1947 all-time regional record for the most amount of tropical days, with the record currently standing on 31 as of 12 August.[310]
Record-breaking statistics
| New record | Date | Location | Previous record | Location | Old record |
|---|---|---|---|---|---|
| 21.4 °C (70.5 °F) | 25 June 2026 | De Bilt[315] | 25 June 2019 | De Bilt | 19.5 °C (67.1 °F) |
| 21.3 °C (70.3 °F) | 26 June 2026 | 26 June 1947 | 17.9 °C (64.2 °F) | ||
| All-time record of De Bilt | 27 July 2018 | 22.4 °C (72.3 °F) | |||
| Previous June record of De Bilt | 27 June 1947 | 19.8 °C (67.6 °F) | |||
| All-time record outside of De Bilt | 27 July 2018 | Deelen | 24.4 °C (75.9 °F) | ||
24 June is the sixth-ever recorded day with tropical conditions (above 30 °C (86 °F)) throughout the country, as well as the first-ever one for June.[312] The night of 24 June was the hottest ever recorded in that month of the year.[315]
| Date | Code level | Location | Reason/Notes |
|---|---|---|---|
| 22–25 June | Yellow | Northern Provinces; Wadden Islands | Risk for localised heat weather hazard[316] |
| Orange | Rest of the country | Expected temperature up to 36 °C (97 °F)[317] | |
| 26–27 June | Northern Provinces; Wadden Islands; Zeeland | High chance for heat weather hazard[316] | |
| Red | Rest of the country | Expected temperature up to 40 °C (104 °F)[318] | |
| Upgraded from preemptive code orange | |||
| First-ever code red alert for heat[318] | |||
| Except Gelderland, Limburg, North Brabant, and Overijssel, the rest of the country was downgraded to orange on 27 June | |||
| 10–15 July | Yellow | South Holland; Utrecht; Gelderland; Overijssel; Zeeland; Noord Brabant; Limburg | Expected temperature above 25 °C (77 °F)[319][320] |
| 12-16 August | Yellow | All provinces, including Wadden Islands | Expected temperature up to 38 ºC (100 ºF)[309] |
On the afternoon of 25 June, the preemptive nationwide code orange of 26 June was upgraded to code red except for the north, Wadden Islands, and Zeeland. The code red alert was extended to 27 June when data suggests that the heat dome shifted later than expected.[321]
On 26 June, KNMI issued level 10 on the heat force scale,[322] the fourth time in De Bilt since the scale's establishment in 1991.[318] This day also classed as the first-ever "super-heatwave" in the Netherlands, wherein the temperature stayed above 35 °C (95 °F) for three consecutive days.[323] Throughout the week, schools operated on a special heatwave schedule, and on 26 June most of the primary schools and also secondary schools closed due to the extreme heat.[324][325] The red alert has led to the cancellation of various events, including the Dutch U18 and U20 athletics championships,[326] and the Defqon.1 music festival in Biddinghuizen.[327][328] On 27 June, numerous events were also were temporarily suspended or ended early as a number of safety regions declared it unsafe to host any forms of outdoor mass gathering.[329]
The all-time record of June dated back to 1947, when it reached 37.9 °C (100.2 °F) in Venlo on 27 June, it was broken by 39.4 °C (102.9 °F) in Ell on the afternoon of 26 June 2026.[318] Previously, on 25 July 2019, the absolute all-time heat record from 1944 was broken by 40.7 °C (105.3 °F) in Gilze-Rijen.[330]
Severe thunderstorms
19–20 June
On the night of 19 June, the frontal system of the approaching heatwave generated a severe thunderstorm that tore through the entire Benelux area. The Netherlands recorded over 188,307 lightning strikes, breaking the all-time daily record.[331] Significant storm damage took place in eastern Groningen.[332] A wedding with 150 guests in Twente was flooded during the ceremony, flash flood occurred after a river bank burst.[333] A 25-year-old woman died when a tree fell on her moving car near Coevorden.[334] An NL-Alert was issued the following morning for the overwhelmed emergency service due to the widespread response to the damages to houses and trees.[335][336][337]
27–28 June
A code orange alert was issued for severe thunderstorm from the afternoon of 27 June to the early morning of 28 June, worse than the night of 19 June due to higher amount of atmospheric energy.[338] Monitors recorded 413,860 lightnings, breaking the record that just set a week ago by more than double.[339] Various regions across the Netherlands were hit with hailstones up to 5 centimetres (2.0 in).[340][329] Insurers received many damage reports due to hail and lightning strikes, particularly from the regions around Amsterdam and Utrecht and from Flevoland.[341]
Train traffic experienced various disruptions due to lightning strikes and trees and branches on the tracks. In Gouda, a lightning strike caused serious technical problems, halting all operations between Gouda, The Hague, and Rotterdam. A tram in Scheveningen was hit by a lightning strike and stalled in the middle of an intersection.[342]
Lightning strikes also caused several fires in Amsterdam, Wassenaar, Geldrop, Snelrewaard, Helmond, Landsmeer, Nunspeet, and Beek en Donk, among others. A historic barn at Oldenoordweg in Toornwerd, Groningen caught fire from the lightning strike.[343] In Veldhoven, the historic 1858 windmill of Zilster Molen was torn apart by a strong wind gust, it collapsed onto nearby houses and cars.[344]
Safety regions received an overwhelming amount of damage reports, multiple control rooms were near-capacity. For instance, the Midden- and West-Brabant safety region was so busy that an extra control room was set up at a fire station.[345] People in that region were urged to call the emergency services only in cases of immediate danger, so that the control room remained available for urgent situations.[346] Reports of flash flooding also surged across Dutch cities.[329]
This storm, generated by the front with extreme temperature difference along retreating high-pressure area, marked the end of the June heatwave.[318]
Other heat-related disruptions
Overall, during the heatwaves, six deaths were caused by accidents during water activities.[347] RIVM attributed approximately 480 excess deaths to heat, which is mostly the elderly population or people with pre-existing health conditions, in the eastern and southern parts of the country.[348] The death toll is expected to rise as reports are still being processed in the coming weeks.[349]
During the June heatwave, there were numerous reports of drawbridge malfunctions across the Netherlands.[350][351][352] Many municipalities halted all bridge operations, stranding ship traffic.[353][354][355] The railroads also suffered vehicle and infrastructure failures.[356][357][358][359][360] Various roads across the Netherlands also suffered structural failure due to extreme thermal conditions on 26 and 27 June, necessitating emergency repairs.[361][362][363] Dutch energy company Essent reported that residential electricity consumption shot up by 50% during the 11-day-long extreme heat.[364]
The Netherlands declares a drought on 03/08/2026.[365]
Norway
In Norway, a heatwave is defined as five or more consecutive days of 27 °C (81 °F) or higher.[366] As of 23 June, such a stretch has not occurred;[367] temperatures have, however, been higher than normal since early June.[368] On 28 June, temperatures in Kongsberg and Nelaug fit the definition of heatwaves in Norway.[369][370]
Temperatures on 15/07/2026 were at:
North Macedonia
The media issued public health advice on 28 June 2026 due to predicted temperatures of 30 °C to 40 °C.[372]
The temperature reached around 35 °C in Skopje on 17 July 2026.[373]
Poland
Given low May rainfall, Poland faced considerably increased risk of wildfires in its forests and national parks as the Omega block moved east.[374] Several municipalities set up water curtains for the public, and Polish State Railways warning of deformed tracks and sagging power lines, offered full refunds for booked weekend travel.[375] On 28 June, 40.5 °C (104.9 °F) was recorded in Słubice. This is the highest temperature ever recorded in Poland,[376] the previous record being 40.2 °C (104.4 °F) in 1921.[195]
On 28 June, it was reported that a woman had died in Chełm due to high temperatures.[377] On the same day, during an edition of the LOTTO PolandBike Marathon held in Marki, two race participants, aged 30 and 71, died after failing to reach the finish line. The body of the first cyclist was discovered later that day a short distance from the race route. The second was found on 29 June following an extensive search involving police, fire brigades, search and rescue teams and drones. Initial reports suggested that the extreme heat, with temperatures reaching nearly 40 °C (104 °F), was a possible contributing factor. The exact circumstances remain the subject of investigation.[378][379] A 60-year-old man died in a hospital in Konin after suffering from overheating while working on a farm.[380] A 47-year-old woman died while sunbathing in the yard of her home. Overheating is suspected to be the cause of death; this will be investigated.[381]
On 29 June, in Sanok, a 52-year-old man died at work.[382] At the same time, a 90-year-old man died in the hospital in Zielona Góra. The cause of death was likely overheating; doctors recorded a body temperature of 43 degrees Celsius.[383]
Portugal
Portugal faced the threat of 42 °C (108 °F) high temperatures with yellow weather warnings issued initially only in the districts of Leiria, Lisbon, Santarém, Setúbal, Portalegre, Évora, and Beja, before being expanded to all districts in Portugal due to significant public health concern and "very high" wildfire risks.[384][385][386] Continental Portugal experienced nearly nationwide tropical nights, meaning that the daily low temperature was above 20 °C (68 °F) from the Alentejo to the Algarve.[387][388][389] Mora recorded a temperature of 40.3 °C (104.5 °F) on 27 May, setting the hottest May record on nationally. In addition, 22 stations recorded the highest maximum-temperature on record, with one on 26 May and the rest on 27 May.[390] Temperatures then hit 44 °C on June 1.[391]
Subsequent fires
A large forest fire hit the municipality of Valpaços, Vila Real on the 29th of July. [392]
Over 14,000 hectares forest burn down in Portugal during July, with the North region hardest hit[393]
Romania
Late May Heatwave
On the 27th of May, 32.8 °C (91.0 °F) was recorded in Oravița.
Late June Heatwave
On the 28th of June, Administrația Națională de Meteorologie (ANM) issued Code Red Heat Warnings for 16 counties. Temperatures hit 39.8 °C (103.6 °F) in Săcueni. On the 29th of June, the Code Red Heat Warnings was extended to 35 counties, including the capital city of Bucharest. Temperatures hit 40.6 °C (105.1 °F) in Jimbolia and Săcueni. On the 30th of June, the Red Heat Warnings have been extended to 39 counties. Temperatures hit 40.8 °C (105.4 °F) in Jimbolia and Săcueni. 3 people died due to the heat, including a 56-year-old shepherd from Iași due to prolonged exposure from the sun.[16][394]
The heatwave triggered intense and deadly thunderstorms. One person died due to the thunderstorms in Găneasa, Ilfov County when a tree crushed a car.
Mid July Heatwave
On the 16th of July, Administrația Națională de Meteorologie (ANM) issued Code Yellow Heat Warnings for 4 counties. 36.8 °C (98.2 °F) was recorded in Sânnicolau Mare. On the 18th of July, the Code Yellow Heat Warnings were expanded to 7 counties. 37.4 °C (99.3 °F) was recorded in Calafat. On the 19th of July, the Code Yellow Heat Warnings were expanded to 15 counties. Temperatures reached 36.9 °C (98.4 °F) in Calafat. On the 20th of July, the Code Yellow Heat Warnings were reduced to 10 counties.
Late July/Early August Heatwave
On the 30th of July, 37.0 °C (98.6 °F) was recorded in Arad. On the 31st of July 38.3 °C (100.9 °F) was recorded in Sânnicolau Mare. On the 1st of August, Administrația Națională de Meteorologie (ANM) issued Code Red Heat Warnings for Arad County, Bihor County and Satu Mare County. 39.7 °C (103.5 °F) was recorded in Săcueni. On the 3rd of August, the Code Red Heat Warning was expanded to 4 counties, with the Timiș County joining the Code Red Heat Warning. 39.5 °C (103.1 °F) was recorded in Săcueni. On the 4th of August, the Code Orange Heat Warnings and the Code Yellow Heat Warnings were expanded to the whole country. 39.5 °C (103.1 °F) was recorded in Săcueni, again. On the 5th of August, the Code Red Heat Warnings were expanded to 7 counties. Caraș-Severin County, Maramureș County and Sălaj County joined the Code Red Heat Warning. Over three quarters of the country joined the Code Orange Heat Warnings, while the rest of the country were in Code Yellow Heat Warnings. 40.5 °C (104.9 °F) was recorded in Săcueni. On the 6th of August, 41.2 °C (106.2 °F) was recorded in Săcueni.
On the 11th of August, 39.8 °C (103.6 °F) was recorded in Săcueni.
On the 20th of August, 39.0 °C (102.2 °F) was recorded in Sânnicolau Mare. On the 21st of August, 40.6 °C (105.1 °F) was recorded in Moldova Veche.
San Marino
A heat warming is put out in San Marino as the heat hit 30 °C on 15/07/2026[395] Temperatures were predicted to be between 29 °C and 40 °C over the next 12 days (July 30–August 11).[396]
Russia (European and Urals part)
An 8 °C temperature anomaly hit the central Urals on 4 May 2026, to 7 May 2026.[397]
Russia's Hydrometeorological Centre said temperature in Moscow reached to 30.6 °C on 12/05/2026 and temperatures were forecast to reach 32 °C 18/05/2026.[398] St. Petersburg hit 30 °C and temperature records were also broken in Kostroma and Perm on 12 May 2026.[398]
A 9 °C temperature anomaly hit the Nenets region from 26 May 2026 to 3 June 2026.[399]
Serbia
Serbia's Republic Hydrometeorological Institute (RHMZ) reported on 2025/06/27 that the nation's highest temperatures had just occurred at:[400]
The heat hit 35 C (95 F) Belgrade July 12.[401]
Serbia’s the Pančevo refinery, the only oil refinery in the country, cut production by 50% as the Danube shrank to near unnavigable level on 04/08/2026.[402]
Slovakia
From mid-June 2026, the Slovak Hydrometeorological Institute (SHMÚ) issued repeated high-temperature warnings as the second European heatwave of the season reached Slovakia.[403] First- and second-level alerts were progressively expanded across the Bratislava, Trnava and Nitra Regions and southern districts elsewhere, with third-level warnings later covering large parts of the south-west ahead of the peak.[404] On the night of 27 June the temperature at Bratislava–Koliba fell no lower than 26.3 °C (79.3 °F), the highest June minimum in the SHMÚ network since at least 1951; further exceptionally warm nights followed.[405]
By late June around 37–44 % of Slovakia was experiencing significant to extreme soil drought. SHMÚ warned of high wildfire risk and the Public Health Authority of the Slovak Republic issued advisories for vulnerable groups, including children, the elderly, pregnant women and the chronically ill. Emergency services recorded hundreds of heat-related collapses; rail lines suffered speed restrictions and track buckling; and animal-welfare incidents were reported.[406] On 29 June a provisional national record of 41.0 °C (105.8 °F) was measured at the precipitation station in Turňa nad Bodvou, with 40.5–40.6 °C recorded at several other stations (including Mužla); an IT-system outage at SHMÚ temporarily disrupted real-time data that day.[407] The following day, 30 June, 41.3 °C (106.3 °F) was recorded at the automatic station in Kamenica nad Hronom. After verification SHMÚ experts formally confirmed the value as the new all-time national record on 9–10 July 2026.[408]
After a cooler period, a second heatwave developed from late July into early August 2026. On 1 August temperatures again reached 40 °C (104 °F) at Štrkovec in the Rimavská Sobota District—the second occasion in a single summer (in two distinct episodes) that the 40 °C threshold had been exceeded, an occurrence unprecedented in the modern observational record. Third-degree heat warnings covered southern regions, with highs oscillating around 40 °C expected to persist into the following working week; drought conditions remained severe in the south and emergency services again recorded dozens of heat-related collapses.[409][410] On 6 August the meteorological station of Dolné Plachtince had unexpectedly recorded a maximum temperature of 42.2 °C (108.0 °F) , surpassing the new national record from the day before of 41.3 °C (106.3 °F). This record was not yet verified by SHMÚ.[411]
Slovenia
May and June
Between 25 and 27 May, the Slovenian Environment Agency (ARSO) recorded temperatures above 30 °C (86 °F) at several stations in its network, reaching as high as 33.5 °C (92.3 °F) at Cerklje ob Krki Airport on 27 May.[412]
According to ARSO's definition, a heatwave in Slovenia is a period of time when there is a minimum of three consecutive days with average temperatures of at least 24 °C (75 °F) in its central and eastern parts or 25 °C (77 °F) in its western parts, respectively. Therefore, the first heatwave to affect the country in 2026 began on 18 June, when the agency announced that it expected highs above 30 °C (86 °F) to persist for at least 12 days.[413] On 24 June, ARSO reported that the peak of the heatwave was likely to occur on 28 or 29 June.[414] On 27 June, the agency recorded a temperature of 37.4 °C (99.3 °F) in Dolenje, followed by 37.2 °C (99.0 °F) in Podnanos, as temperatures rose above 33 °C (91 °F) in almost all lowland areas of Slovenia.[415] Between 27 and 30 June, the highest heat warning issued by ARSO was in effect for most of the country's southwestern areas, whilst the agency's second-highest heat warning was in effect for the rest of Slovenia.[414][415]
On 28 June, temperatures exceeded 36 °C (97 °F) at several ARSO stations in southwestern and central parts of the country; a temperature of 37.5 °C (99.5 °F) was recorded in Podnanos, the highest value measured during the heatwave up to that point, and a temperature of 36.9 °C (98.4 °F) at the agency's station in the Bežigrad District of Ljubljana set a new June temperature record for the capital. On 29 June, eleven ARSO stations measured highs of at least 37.0 °C (98.6 °F), which included a temperature of 38.7 °C (101.7 °F) in Podnanos and 38.2 °C (100.8 °F) in Bilje, respectively. The former set a new June temperature record for Slovenia, surpassing a 2025 record of 38.4 °C (101.1 °F) in Dobliče and marking the first time since a previous 2022 record of 38.0 °C (100.4 °F) that the value had been reached in Podnanos in June.[416][417][418]
Hot weather continued on 30 June and 1 July, with temperatures in Podnanos reaching 38.1 °C (100.6 °F) and 36.3 °C (97.3 °F), respectively, as several ARSO stations in the Vipava Valley measured highs in excess of 34 °C (93 °F) on every day between 18 June and 1 July. Between 28 and 30 June, 20 stations in the agency's network registered highs of at least 36.0 °C (96.8 °F), with 12 of the 20 stations setting new June temperature records for their respective locations.[417] During the afternoon of 30 June, thunderstorms caused by the heat affected southwestern and central Slovenia, before occurring in various parts of the country the following day, which marked the end of the heatwave.[419][420]
July and August
A second heatwave affected Slovenia during the week from 13 to 19 July, but it was less intense and shorter than the first one. Afternoon highs did not exceed 35 °C (95 °F) and thunderstorms were frequent. Because most precipitation since mid-June had been in the form of short-lived, local thunderstorms and downpours, drought was felt in most regions of the country and there was a heightened risk of wildfires for several days.[421][422]
The third heatwave to affect Slovenia in 2026 began on 29 July and was initially expected to last at least one week, with its peak likely to occur on 31 July or 1 August, when temperatures were predicted to exceed 35 °C (95 °F) in all lowland areas of the country and reach approximately 39 °C (102 °F) in the Vipava Valley and parts of western Slovenia, as drought and a heightened risk of wildfires persisted in most regions of the country.[423] ARSO later reported that the heatwave was likely to continue until the end of the first week of August and could lead to some places surpassing a 2015 record of 10 consecutive days with highs of at least 35 °C (95 °F).[424]
On 31 July, ARSO measured July temperature records at 28 stations in its network, with 15 of the 28 stations registering the highest temperatures for their respective locations since record-keeping began. The highest temperature of the day was measured in Dolenje near Ajdovščina at 40.0 °C (104.0 °F), a new temperature record for the location and the first time the value had been reached in Slovenia in 2026. It was followed by a temperature of 39.6 °C (103.3 °F) in Podnanos.[425][426] On 1 August, ARSO measured a temperature of 39.2 °C (102.6 °F) in Bilje, followed by 39.1 °C (102.4 °F) in Škocjan and 38.8 °C (101.8 °F) in Dolenje, with all three locations surpassing their respective August temperature records for the first time since 2017.[427]
On 2 August, temperatures at the ARSO station in Vedrijan did not fall below 28.7 °C (83.7 °F), which set a new national record for the highest daily low.[428][429] Around noon that day, a temperature of 40.1 °C (104.2 °F) was measured at the agency's station in the Markovec area of Koper, surpassing a 2017 record of 38.8 °C (101.8 °F) for the location, after the bora that had started overnight continued and contributed to an excessively hot morning in the region.[429][430] Eventually, ARSO registered an average daily temperature of 32.3 °C (90.1 °F) at the station for 2 August, which was the highest value among the three stations in its network that registered an average daily temperature in excess of 30 °C (86 °F) that day, the other two being Vedrijan and Bilje.[431]
On 5 August, temperatures in Ljubljana reached at least 35 °C (95 °F) for the eighth consecutive day, surpassing a 2013 record of seven consecutive days with such highs measured in the capital. Late in the afternoon, the heat caused the formation of heavy thunderstorms in parts of western Slovenia.[432][433] Several places at an elevation above 1,000 m (3,300 ft) were also affected by the heatwave, with the ARSO station at Rogla, located at 1,495 m (4,905 ft) above sea level, registering a daily low of 21 °C (70 °F) between 3 and 4 August to become the highest station in the agency's network to experience a "tropical night" in 2026.[434][432]
Subsequent fires
On 31 July, it was reported that dry terrain and possibly a lightning strike had caused the spread of a forest fire in the Municipality of Bovec, which originally started as an underground fire three days earlier, prompting an all-day firefighting operation that also required a temporary closure of the Mangart Road. Approximately 12 ha (30 acres) of forested landscape were affected.[435] On 3 August, it was reported that the forest fire was under control, even though underground fires still required firefighters to monitor the affected area.[436]
On 7 August, a forest fire broke out due to a suspected lightning strike in a remote mountainous area near Kranjska Gora, requiring an aerial firefighting operation, as the affected area was not accessible by road.[437] Although the fire had been contained by 8 August, it reignited and started spreading again on 10 August, requiring the aerial firefighting operation to resume.[438]
Spain
Temperatures in Spain began rising on 19 May. By 28 May, Santander Airport recorded six days with temperatures higher than 30 °C (86 °F). Before then, only two days prior to June had recorded such temperatures. In addition, Badajoz Airport had temperatures over 38 °C (100 °F) for the first time in May. Temperatures across the southwestern quadrant of Spain recorded highs of 37–39 °C (99–102 °F).[439] Vinebre recorded a temperature of 39.5 °C (103.1 °F), setting the hottest May temperature ever recorded in Catalonia.[440] The Health Ministry recorded 101 heat-related deaths in May, the highest ever recorded for the month of May since records began in 2015.[441]
On 22 June, temperatures peaked at 45.1 °C (113.2 °F) in Andújar, southern Spain.[442] Between 21 and 24 June, 108 fatalities were recorded.[443] On 25 June, the Daily Mortality Monitoring System (stylized MoMo)[444] statistically calculated that 212 deaths were linked to the heatwave.[185] By 26 June, 327 heat-related deaths had been registered since 21 June.[90] The Carlos III Health Institute reported at least 1,028 heat-related deaths occurred during the heatwave in June.[445]
Barcelona recorded 40.5 °C (104.9 °F) on 8 July, setting the highest maximum temperature since records began.[446] A wildfire broke out on 9 July in southeastern Almería province, killing at least 12 and injuring at least eight, while 23 others are missing.[447]
Subsequent fires
Antonio Sanz, Andalusia's health and emergencies minister, said on 11/07/2026 that a fire had burned it's way across 6,600 hectares (16,300 acres) of Andalusia's land.[448]
A major forest fire at Navaluenga, Ávila, on July 22[449]
Bush fires threatened Madrid on 24 July.[450]
The arsonist who started the major forest fire at Navaluenga, Ávila, on July 22; was jailed in July 30[449]
Spain's prime minister, Pedro Sánchez, raised concerns about climate change after visiting a small town in the southwestern region of Extremadura on 2 August.[451] A man in Madrid died of heat stroke the same day.[451]
Three fires broke out in Huelva province in southwestern Spain between August 6 and 7 and the fire hit the Doñana National Park on August 7.[449]
Firefighters battled with major wildfires in Castellón on 09/08/2026[452] and Andalusia on 10/08/2026.[453]
Sweden
Orange warnings were issued for southern Sweden from 25 June onwards as heatwaves moved their way northward from the rest of the continent.[454] Temperatures exceeded 30 degrees for the first time on that day in Ronneby-Bredåkra with 30.6 °C (87.1 °F)[455] and have been forecasted to reach up to 35 °C (95 °F) until 29 June.[456] On 25 June, a 600 m-long freight train derailed on the main route between Göteborg and Borås near Bollebygd because of heat-induced track warping. No one was injured in the accident, and as of 27 June 2026,[update] there is no estimate of when the track will reopen.[457][458]
Switzerland
The unusually early heatwave set new daily highs in many stations in the latter part of May.[459] The 0 °C (32 °F) isotherm, which is to say the freezing level, rose to 4,328 m (14,199 ft) on 25 May, the third highest recorded in May.[460] Biasca recorded 34.8 °C (94.6 °F) on 28 May, just 0.3 °C (0.54 °F) below the May national record and the highest May temperature ever recorded on the southern side of the Alps.[459] Overall, the month of May was 1.8 °C (3.2 °F) above average and the fourth hottest on record.[459][461]
On 25 June, MétéoSuisse announced they had exceeded 37 °C (99 °F) in June for the first time since modern records began in 1946, with 38.0 °C (100.4 °F) in Basel.[6] This record was broken the following day, 26 June, with 38.8 °C (101.8 °F) in Binningen.[462] And on the 27th, Glacier Monitoring (GLAMOS) announced that the second-earliest melt-off of the winter's accumulated ice and snow was expected on Monday. Its records began in 2000, and the earliest previous melt-off was marked on 26 June 2022.[164]
Turkey
A major temperature increase hits cities across Turkey, including Antalya and Istanbul on 21 June 2026.[463]
Subsequent fires
A bush fire closed the main road between Fethiye and Antalya and a hospital was evacuated because of a bush fire in Muğla province on 29 July 2026.[13]
Hundreds are Antalya's Kaş district and Muğla province due to near by wid fires on 30/07/2026.[464]
Ukraine
As the heat dome shifted eastward into Central and Eastern Europe in late June, Ukraine experienced "intense heat" with temperatures between 35 and 38 °C (95 and 100 °F), which was warned by the Ukrainian Hydrometeorological Center on 29 June. Residents cooled off in the river, which can be seen en masse in Kyiv at the beaches of the Dnieper River.[465]
The ongoing Russo-Ukrainian war resulted in significant damage to Ukraine's energy infrastructure, the stress on the electricity grid was exacerbated by the heat. Energy rationing and rolling blackouts were implemented by the main operators across several regions on 30 June.[466][467][468][469]
The highest daytime temperatures during the heatwave were concentrated across western and southern Ukraine, culminating on 28 June when Lutsk recorded the country's peak temperature of 36.7 °C (98.1 °F). In Lviv Oblast, temperatures climbed from 30.2 °C (86.4 °F) on 25 June to 31.7 °C (89.1 °F) on 26 June, 32.4 °C (90.3 °F) on 27 June, and 35.8 °C (96.4 °F) on 28 June. Similarly, Zakarpattia Oblast also saw consecutive record-breaking days, rising 33.4 °C (92.1 °F) on 26 June to 34.6 °C (94.3 °F) on 27 June, and 36.4 °C (97.5 °F) on 28 June. Other western regions also registered record highs, including Ternopil Oblast at 35.5 °C (95.9 °F), Khmelnytskyi Oblast at 32.8 °C (91.0 °F), and Rivne Oblast at 36 °C (97 °F) on 28 June. Record temperatures were established across several oblasts, including Chernivtsi Oblast at 35.9 °C (96.6 °F), Vinnytsia Oblast at 34.6 °C (94.3 °F), and Zhytomyr Oblast at 33 °C (91 °F). The heat peaked on 28 June, with Kirovohrad Oblast hitting 35 °C (95 °F) and Odesa Oblast hitting 36.2 °C (97.2 °F).[470]
On 6 August, temperatures up to 39 °C (102 °F) were recorded in Kyiv and Rivne.[471]
United Kingdom
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On 25 May, the highest springtime temperature ever recorded in Great Britain was recorded in Kew Gardens at 34.8 °C (94.6 °F), exceeding the previous record by over 2 °C (3.6 °F).[472][23][473] The next day on 26 May, the previous day's record was broken again at Kew Gardens with a reading of 35.1 °C (95.2 °F).[474][475] The heatwave has led to recorded 34.3 °C (93.7 °F) temperatures onboard London Underground trains and stations,[476] and at least 15 people died in water-related incidents across the country.[477]
On 22 June, the Met Office issued a red extreme heat warning for 24 and 25 June, the second time in history that such a warning has been issued.[478] The June temperature record was broken three days in a row from 24 to 26 June. On 24 June, the record was broken in Gosport, Hampshire, with a reading of 36.1 °C (97.0 °F), on 25 June, in Merryfield, Somerset, with a reading of 36.7 °C (98.1 °F) and on 26 June, in Lingwood, Norfolk, with a reading of 38.0 °C (100.4 °F).[479] The record before the heatwave was 35.6 °C (96.1 °F) set in 1957 and 1976.[480]
The extreme heat was also felt in the Crown Dependencies of Jersey, Guernsey, and the Isle of Man.[481] On 25 June, Jersey reached a temperature of 39.3 °C (102.7 °F). This is the highest temperature ever recorded on the island since records began in 1894.[482]
The record for the highest minimum temperature in Wales for June was broken in Cardiff on the night of 25 June, with a registered temperature of 23.5 °C (74.3 °F).[6]
On 3 July, yellow heat warnings were issued for most of England starting on 4 July.[32] On 6 July, the warnings in the South of England were upgraded to amber from 8 to 12 July.[33] On 9 July, temperatures peaked at 35.5 °C (95.9 °F) in Wisley, making it the eighth day of the year when temperatures exceeded 34 °C (93 °F), breaking the previous record of seven set in 1976 and equalled in 2020.[483] On 3 July, Thames Water announced a hosepipe ban for all of its customers.[484]
On 22 July, supermarkets warned there could be a food shortage later in the year, due to poor crop yields.[485]
From 28 to 30 July, another heatwave affected large parts of the UK, mainly in Southern England. Temperatures peaked at 35 °C (95 °F) in parts of South East England.[486]
On 30 July, a state of drought was declared across parts of Southern and Western England.[487] Due to the drought, a series of hosepipe bans were announced across Southern England, affecting nearly 26 million people.[488]
On 7 August, the Met Office issued a series of high heat alerts across England starting from 9 August.[489] On 13 August, the UK recorded a temperature of 38.1 °C (100.6 °F) at Kew Gardens, London, which is the highest temperature of 2026 so far and the 5th hottest day ever recorded in the UK.[490]
Subsequent wild fires
Due to the excessive heat, the number of wildfires has increased drastically, with 1017 wildfires recorded as of 13 August 2026, according to the National Fire Chiefs Council (NFCC). This is as many wildfires as was recorded in all of 2025.[491]
The Vatican
The Vatican, a small enclave inside the city of Rome, was affected similarly to the rest of Rome.[citation needed]
Highest temperature by country
| Country | Temperature | Record | Date | Location | Ref(s). |
|---|---|---|---|---|---|
 Austria |
41.2 °C (106.2 °F) | All-time | 5 August | Bad Deutsch-Altenburg | [70][71] |
 Belarus |
40.4 °C (104.7 °F) | 29 June | Pinsk | [citation needed] | |
 Belgium |
38.4 °C (101.1 °F) | 26 June | Kleine-Brogel | [citation needed] | |
 Bosnia and Herzegovina |
43.0 °C (109.4 °F) | 6 August | Mostar | [114] | |
 Croatia |
41.0 °C (105.8 °F) | 30 June | Knin | [140] | |
 Czech Republic |
41.9 °C (107.4 °F) | All-time | 28 June | Doksany | [492] |
 Denmark |
37.0 °C (98.6 °F) | 27 June | Ødum | [165] | |
 Estonia |
29.6 °C (85.3 °F) | 29 June | Valga | [493] | |
 France |
44.3 °C (111.7 °F) | 23 June | Pissos | [30] | |
 Germany |
41.8 °C (107.2 °F) | All-time | 27 June | Möckern-Drewitz | [494] |
 Guernsey |
36.4 °C (97.5 °F) | 25 June | Guernsey Airport | ||
 Hungary |
42.0 °C (107.6 °F) | 30 June | Szécsény | [244] | |
 Ireland |
32.2 °C (90.0 °F) | 25 June | Athenry | [citation needed] | |
 Italy |
46.5 °C (115.7 °F) | 22 July | Noto | [1] | |
 Jersey |
39.3 °C (102.7 °F) | All-time | 25 June | Mason Saint Louis | |
 Luxembourg |
38.6 °C (101.5 °F) | June | 26 June | Findel | [276] |
 Lithuania |
36.3 °C (97.3 °F) | 28 June | Druskininkai | [495] | |
 Moldova |
41.0 °C (105.8 °F) | 30 June | Cahul | [citation needed] | |
 Netherlands |
39.4 °C (102.9 °F) | 26 June | Ell | [226] | |
 Norway |
34.2 °C (93.6 °F) | 15 July | Nesbyen-Todokk | [496] | |
 Poland |
40.5 °C (104.9 °F) | All-time | 28 June | Słubice | [376] |
 Portugal |
44.3 °C (111.7 °F) | 3 July | Mora | [390] | |
 Romania |
41.2 °C (106.2 °F) | 6 August | Săcueni | [497] | |
 Slovakia |
42.2 °C (108.0 °F) | All-time | 6 August | Dolne Plachtince | [498] |
 Slovenia |
40.1 °C (104.2 °F) | 2 August | Koper | [429][430] | |
 Spain |
45.1 °C (113.2 °F) | 22 June | Andújar | [30] | |
| 23 June | Montoro | ||||
 Sweden |
36.8 °C (98.2 °F) | June | 27 June | Osby | [citation needed] |
 Switzerland |
39.0 °C (102.2 °F) | Binningen | [30][499][500] | ||
 Ukraine |
39.5 °C (103.1 °F) | June | 29 June | Berehove | |
 United Kingdom |
38.1 °C (100.6 °F) | 13 August | Kew Gardens | [501] |
Analysis
Climate implications
Teresa Ribera, a European commissioner, blamed "ideologically driven" falsehoods driven by people with interests in fossil fuels for obstructing EU green policy.[502] Climatologist Friederike Otto commented that "it's climate change [...] not El Niño".[503] Scientists from the World Weather Attribution said that the heatwave was "virtually impossible" without climate change, and that the concurrent El Niño weather pattern "did not contribute" to the severe heat.[504]
The extreme heat set the backdrop for a special address by UN secretary-general António Guterres at London Climate Week on 23 June:
We have just lived through the eleven hottest years ever recorded. Climate disasters are becoming more frequent, more destructive, and more costly. And the World Meteorological Organization has warned we ain't seen nothing yet. El Niño is not just knocking on the door. It risks blowing the house down. Turning up the heat. Disrupting food and water systems. And hitting the vulnerable the hardest.[30]
Infrastructure
Heat-induced bending of rail tracks and catenary wires prompted many cancellations, particularly in France and Belgium.[505] Much of Europe's train network was not designed for the high heat.[506]
Air conditioning
The politicisation of air conditioning[507] reignited, with right-wing politicians in multiple countries championing the technology and characterising resistance to its adoption as a misguided left-wing project. Marine Le Pen vowed to "put into place a massive air-conditioning plan" if elected president of France;[508] left-wing leader Jean-Luc Melenchon instead declared, "I won't put my kid or my granddaughter or my great-granddaughter somewhere with air conditioning from morning to night!"[509] The centre-left government of Ghent initially advised residents to "avoid air-conditioners", but removed the advice after an enquiry from the New York Times.[508] CNN reported that mass adoption of air conditioning could set the European Union back from its goal of climate neutrality by 2050.[510] Energy cost also presents a significant barrier to wider adoption, and 38% of respondents to an EU-wide survey said they could not afford to cool their homes.[511] Many train cancellations were prompted by a lack of air conditioning.[512] Because the windows of many trains do not open, a disabled train in high heat presents a dangerous situation as it may not occur to passengers to avail themselves of emergency window breakers to prevent deaths onboard.[506]
The lack of air conditioning in some European countries baffled many Americans.[513] Similarly, Chinese social media contrasted the situation in Europe with the one in China, where air conditioning is so widely adopted that it is even used in barns and pig stalls.[514] Focusing on France, some commentators diagnosed a supposed French psychological propensity to embrace suffering, which led to recriminations that the prevalence of air conditioning in the United States evinced greed or decadence.[515][516] Le Monde noted that air conditioning is widely viewed in France as a maladaptation to climate change, but that the 2026 heatwave engendered more public discussion of the role of air conditioning in the country.[509] French resistance toward air conditioning may be influenced by a superstition of choc thermique ("thermal shock"), the supposed tendency for air conditioning to cause fainting, nausea, or viral illness by virtue of the temperature differential moving from outdoors to indoors.[517][516] The superstition was promoted by French media organisations.[518][why?] Furthermore, a superstition persists in Europe more widely that cold air causes illness;[519] in reality, illnesses such as influenza and colds are caused by viruses.[520]
Excess mortality trends
Scientists at Indiana University made preliminary estimates of excess mortality related to the heatwave, based on data from past heatwaves such as the 2025 European heatwaves.[521] The previous 2025 heatwaves were associated with 16,500 excess deaths.[522] The team estimated that in the 2026 heatwaves were associated with 20,390 excess deaths (95% confidence interval: 17,201–25,141), but cautioned that estimates are subject to change.[523][521] An alternative preliminary estimate by a researcher at Poznań University of Medical Sciences puts the excess mortality at 15,000.[521] The European subcontinent has more heat deaths per capita than any other landmass.[524]
See also
- Climate change in Europe
- Coolcation – Holiday to cooler places to avoid the heat
- 2025 European heatwaves
- European heatwave
- 2026 European drought
- List of heat waves
Notes
- Astronomical summer did not begin until 21 June, its meteorological equivalent having, by European standards, already begun on 1 June.
