The climate in Wanju during September can be summarized as warm, humid and wet.
September is in the fall / autumn in Wanju and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 16°C (61°F) is normal.
Daytime temperature | 26.5°C 79.7°F |
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Nightly temperature | 16.1°C 61°F |
Average temperature | 21.3°C 70.3°F |
Daily sunshine | 7.4 hrs |
Avg rainfall | 128 mm 5 ins |
Rainy days | 9 days |
Sea temperature | 24.5°C 76.1°F |
Humidity | 79% |
Windspeed | 4.7kph 3 mph |
On average September is the 4th wettest month of the year in Wanju with around 128mm 5 inches of rain making it a wet time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.4 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 Wanju in September 2025.
Best places to visit in September
Hottest month: | August | 30.5°C 86.9°F |
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Driest month: | January | 32mm 1.3ins |
Sunniest month: | October | 7.6hrs |
Coldest month: | January | 3.3°C 37.9°F |
Wettest month: | July | 271mm 10.7ins |