The climate in Thung Sai during September can be summarized as very hot, humid and very wet.
September is in the fall / autumn in Thung Sai and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 24°C (76°F) is normal.
Daytime temperature | 32.6°C 90.7°F |
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Nightly temperature | 24.2°C 75.6°F |
Average temperature | 28.4°C 83.1°F |
Daily sunshine | 5.8 hrs |
Avg rainfall | 223 mm 8.8 ins |
Rainy days | 19 days |
Sea temperature | 28.7°C 83.7°F |
Humidity | 83% |
Windspeed | 3.2kph 2 mph |
On average September is the wettest month of the year in Thung Sai with around 223mm 8.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
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 Thung Sai in September 2025.
Best places to visit in September
Hottest month: | April | 37.5°C 99.5°F |
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Driest month: | December | 5mm 0.2ins |
Sunniest month: | February | 9.6hrs |
Coldest month: | December | 30.1°C 86.2°F |
Wettest month: | September | 223mm 8.8ins |