Thailand Climate
Thailand has a tropical monsoon climate; temperatures
normally range from an average annual high of 38° C to a low of
19° C. Southwest monsoons that arrive between May and July
(except in the South) signal the advent of the rainy season
(ridu fon), which lasts into October. November and
December mark the onset of the dry season. Temperatures begin to
climb in January, and a hot sun parches the landscape. The dry
season is shortest in the South because of the proximity of the
sea to all parts of the Malay Peninsula. With only minor
exceptions, every area of the country receives adequate rainfall,
but the duration of the rainy season and the amount of rain vary
substantially from region to region and with altitude. The
Northeast experiences a long dry season, and its red, porous
(laterite) soils retain water poorly, which limits their
agricultural potential.
Data as of September 1987
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