Koh Samui Weather September
To help you choose the best time to travel, you can find climate data below on the weather on Koh Samui in September.
|average daily high||+31.7°C|
|average daily low||+24.8°C|
|sunny / overcast hours||4.8 / 7.7|
|average monthly precipitation||122 mm|
Temperature on Koh Samui
In September the average daily maximum on Koh Samui is +31.7°C, and the minimum +24.8°C.
The hottest September day on record is +35.4°C, and the coldest +19.4°C.
Best beach resorts in September:
There are 12.5 hours of daylight on Koh Samui in September. Out of these, on average 4.8 are sunny, which means it is mostly cloudy.
The average monthly temperature in the Gulf of Thailand on the beaches of Koh Samui in September is +28°C.
The water is not only warm enough to bathe in, but it is also possible to stay in the water for an extended amount of time.
The amount of precipitation on Koh Samui in September is usually 122 mm, which may ruin part of the trip.