Koh Samui Weather in March

Koh Samui in March averages 30°C (86°F) during the day and 27°C (81°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Koh Samui in March

Analyzing past climate data, one can expect approximately 5 days of rain, averaging 94 mm (3.7 in). Showers tend to be short but heavy rather than persistent drizzle. When it rains, it usually means it, but it doesn't last long.

Temperature in Koh Samui in March

Daytime temperatures in Koh Samui reach 30°C (86°F) in March, dropping to 27°C (81°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights remain warm at around 27°C (81°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.

Sunshine in Koh Samui in March

Enjoy a sunny month with about 240 hours of sunshine, the clear skies make Koh Samui even more beautiful.

Average water temperature in March

The water reaches 29°C (84°F) this month. It's on the warm side, which suits people who prefer that, but don't expect a cooling dip if the air temperature is also high.

If you prefer dry days with pleasant temperatures, January and February typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.