Best time to visit Koh Samui

Koh Samui has a humid tropical monsoon climate with distinctive rainy and dry seasons. The monsoon seasons here are different than in other parts of Thailand. Dry season on Ko Samui lasts from December to August with the hottest weather from March to August, and the rainy season is from September to November. However, the rainy periods are rather short and Koh Samui can be easily enjoyed also during this season. The northeast monsoon between October and January is characterized by occasional strong winds.

Month Average temperature When to go
January 26° C
February 27° C
March 29° C
April 29° C
May 30° C
June 29° C
July 29° C
August 29° C
September 28° C
October 27° C
November 27° C
December 27° C