Ko Chang Tai Weather in September
What's the weather like in Ko Chang Tai (Trat) in September 2025?
The climate in Ko Chang Tai during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Ko Chang Tai and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 23°C (73°F) is normal.
| Daytime temperature | 29.9°C 85.8°F |
|---|---|
| Nightly temperature | 22.9°C 73.2°F |
| Average temperature | 26.4°C 79.5°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 551 mm 21.7 ins |
| Rainy days | 23 days |
| Sea temperature | 29.2°C 84.5°F |
| Humidity | 85% |
| Windspeed | 5kph 3 mph |
On average September is the 4th wettest month of the year in Ko Chang Tai with around 551mm 21.7 inches of rain making it a very wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
September temperatures in Ko Chang Tai
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 Ko Chang Tai in September 2025.
Other monthly averages
Best places to visit in September
Ko Chang Tai weather stats
| Hottest month: | April | 32.1°C 89.8°F |
|---|---|---|
| Driest month: | December | 23mm 0.9ins |
| Sunniest month: | December | 9hrs |
| Coldest month: | January | 30.3°C 86.5°F |
| Wettest month: | August | 747mm 29.4ins |
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