Weather

January - February is the cool season with temperature averaging a pleasant 79°F / 26°C.

March - May is the hot season, the temperature starts warming up, with average temperatures of 86°F / 30°C, although it has occasionally been known to reach 40°C. There is generally less rain on Koh Samui during these months.

June - September generally speaking temperature average at 82°F / 28°C, with most days filled with sun, except for the occasional downpour, which usually doesn't last long.

October - December is the rainy or wet season, which means that you can expect heavy rain for 30 – 60 minutes daily, mostly in the afternoons, while the rest of the day is hot and sunny with temperatures of around 82°F / 28°C.