Wang Chan Weather in September
What's the weather like in Wang Chan (Rayong) in September 2025?
The climate in Wang Chan during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Wang Chan and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 25°C (76°F) is normal.
| Daytime temperature | 31.2°C 88.2°F |
|---|---|
| Nightly temperature | 24.6°C 76.3°F |
| Average temperature | 27.9°C 82.2°F |
| Daily sunshine | 5.1 hrs |
| Avg rainfall | 361 mm 14.2 ins |
| Rainy days | 20 days |
| Sea temperature | 29.2°C 84.5°F |
| Humidity | 83% |
| Windspeed | 5.4kph 3 mph |
On average September is the wettest month of the year in Wang Chan with around 361mm 14.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.1 hours of sunshine per day.
September temperatures in Wang Chan
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 Wang Chan in September 2025.
Other monthly averages
Best places to visit in September
Wang Chan weather stats
| Hottest month: | April | 33.5°C 92.3°F |
|---|---|---|
| Driest month: | December | 12mm 0.5ins |
| Sunniest month: | December | 9.6hrs |
| Coldest month: | December | 30.9°C 87.6°F |
| Wettest month: | September | 361mm 14.2ins |
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