Don Sak Weather in September
What's the weather like in Don Sak (Surat Thani) in September 2025?
The climate in Don Sak during September can be summarized as hot, humid and wet.
September is in the fall / autumn in Don Sak and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 24°C (75°F) is normal.
| Daytime temperature | 31.7°C 89.1°F |
|---|---|
| Nightly temperature | 23.7°C 74.7°F |
| Average temperature | 27.7°C 81.9°F |
| Daily sunshine | 6 hrs |
| Avg rainfall | 154 mm 6 ins |
| Rainy days | 18 days |
| Sea temperature | 29.1°C 84.4°F |
| Humidity | 80% |
| Windspeed | 6.1kph 4 mph |
On average September is the 5th wettest month of the year in Don Sak with around 154mm 6 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
September temperatures in Don Sak
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Don Sak in September 2025.
Other monthly averages
Best places to visit in September
Don Sak weather stats
| Hottest month: | April | 33°C 91.4°F |
|---|---|---|
| Driest month: | February | 26mm 1ins |
| Sunniest month: | February | 9.1hrs |
| Coldest month: | January | 29.2°C 84.6°F |
| Wettest month: | November | 459mm 18.1ins |
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