Koh Samui weather in September (Bangkok Province, Thailand)
This month is known as a warm month.
The average maximum daytime temperature in Koh Samui in September lies at 28.7°C (83.66°F).
The average minimum temperature goes down to around 25.9°C (78.62°F) (often the minimum temperature is noted at night).
Rainfall during September is high with an average of 166mm (6.5 inchec). There are generally around 17 rainy days. The sun will show itself now and again, with 145 hours of sunshine during the entire month.
Koh Samui, monthly averages in September
Where to stay in Koh Samui
Where to go in Thailand in SeptemberFind out more about the weather in Thailand in September and which places have the best weather conditions in this month.
What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
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