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Weather on Koh Samui
LINK TO THE METEOROLOGICAL DEPARTMENT
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As all tropical islands the weather in Koh Samui is variable, from hot and sunny to tropical thunderstorms.
The rain season goes from September to December and the rest is all sunshine.
But don't take this as a rule because we are on an island with a rainforest interior, then when humidity condense
you can expect periods warm rainfalls also in the dry season.
Temperatures are always on average 27C.