Xiamen Weather in September
What's the weather like in Xiamen (Fujian) in September 2025?
The climate in Xiamen during September can be summarized as hot, humid and damp.
September is in the fall / autumn in Xiamen and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (76°F) is normal.
| Daytime temperature | 30.9°C 87.5°F |
|---|---|
| Nightly temperature | 24.2°C 75.5°F |
| Average temperature | 27.5°C 81.5°F |
| Daily sunshine | 7.3 hrs |
| Avg rainfall | 119 mm 4.7 ins |
| Rainy days | 8 days |
| Sea temperature | 27.4°C 81.4°F |
| Humidity | 77% |
| Windspeed | 11.2kph 7 mph |
On average September is the 6th wettest month of the year in Xiamen with around 119mm 4.7 inches of rain making it a damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.3 hours of sunshine per day.
September temperatures in Xiamen
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 Xiamen in September 2025.
Other monthly averages
Best places to visit in September
Xiamen weather stats
| Hottest month: | July | 32.4°C 90.3°F |
|---|---|---|
| Driest month: | December | 24mm 0.9ins |
| Sunniest month: | July | 9.1hrs |
| Coldest month: | February | 16.4°C 61.5°F |
| Wettest month: | June | 211mm 8.3ins |
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