The climate in Yamagata during September can be summarized as mild and wet.
September is in the fall / autumn in Yamagata and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 22°C (72°F), whilst at night 14°C (57°F) is normal.
Daytime temperature | 22.1°C 71.8°F |
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Nightly temperature | 13.7°C 56.7°F |
Average temperature | 17.9°C 64.2°F |
Daily sunshine | 4.5 hrs |
Avg rainfall | 164 mm 6.5 ins |
Rainy days | 20 days |
Sea temperature | 23.4°C 74.2°F |
Humidity | 79% |
Windspeed | 7.9kph 5 mph |
On average September is the 3rd wettest month of the year in Yamagata with around 164mm 6.5 inches of rain making it a 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 4.5 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 Yamagata in September 2024.
Best places to visit in September
Hottest month: | August | 27.2°C 81°F |
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Driest month: | February | 66mm 2.6ins |
Sunniest month: | April | 6.6hrs |
Coldest month: | January | 0.4°C 32.7°F |
Wettest month: | August | 178mm 7ins |