Day & Night air temperature, °C
The warmest month in Samui is may. The average daily temp is 31.8°C. The average nightly temp is 29.6°C.
Sea water temperature, °C
The warmest sea temperature usually observed in May. Average daily sea water temperature during this month is 30.8°C.
Precipitation total, mm
Number of rainy days
This chart shows averages for the last three years. It shows only medium and heavy rains that could bother you during vacation. It doesn't show light rains.
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Samui
Samui on a weather map
|+28°C||E 10 m/s|