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Weather on Koh Samui
Koh Samui (island) is located in the southern part of The Gulf of Thailand and has very different weather patterns to other parts of Thailand.
Samui has a shorter monsoon (rainy season) and generally more fine days than other parts of southern Thailand.
Generally speaking there are 3 seasons each year on Koh Samui – Hot Season, Cool Season and Monsoon Season.
January to May: Hot season, all day sunshine with April being the Thai New Year and the peak of the hot season – wishing for rain.
May-Sept: Plenty of sunshine, heat tapers off, wind comes with sporadic cooling rain. Pleasant heat levels.
Oct-Nov: Traditional monsoon season for Koh Samui in the Gulf of Thailand. Rains can be more persistent among cooler yet sunny days.