The climate in Yawata during September can be summarized as hot, humid and wet.
September is in the fall / autumn in Yawata and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (83°F), whilst at night 20°C (67°F) is normal.
| Daytime temperature | 28.3°C 82.9°F |
|---|---|
| Nightly temperature | 19.6°C 67.2°F |
| Average temperature | 23.9°C 75°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 182 mm 7.1 ins |
| Rainy days | 18 days |
| Sea temperature | 26.4°C 79.5°F |
| Humidity | 74% |
| Windspeed | 7.2kph 5 mph |
On average September is the 3rd wettest month of the year in Yawata with around 182mm 7.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 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 Yawata in September 2025.
Best places to visit in September
| Hottest month: | August | 32.5°C 90.5°F |
|---|---|---|
| Driest month: | December | 45mm 1.8ins |
| Sunniest month: | August | 6.6hrs |
| Coldest month: | January | 8.3°C 46.9°F |
| Wettest month: | June | 229mm 9ins |