Megathermal
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In climatology, the term megathermal (or less commonly, macrothermal; from Ancient Greek mégas 'large', makrós 'tall', thermós 'warm, hot') is sometimes used as a synonym for tropical. In order for a particular place to qualify as having a megathermal climate, every single month out of the year must have an average temperature of 18 °C or above.
Mega-thermal climates mainly exist in the tropics. It ranges from southeast Asia and most of India to the most northern regions of Australia as well as southern parts of Mexico and Florida, nearly all of Central America and most of Brazil. An arid type prevails in some of northern Africa, while in the center of the continent and parts of Madagascar the climate stays humid. Many islands, especially in the Pacific Ocean, also have megathermal climates.
