Kōfu Weather in October
What's the weather like in Kōfu (Yamanashi) in October 2025?
The climate in Kōfu during October can be summarized as mild and damp.
October is in the fall / autumn in Kōfu and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 10°C (50°F) is normal.
| Daytime temperature | 20°C 68°F |
|---|---|
| Nightly temperature | 9.8°C 49.6°F |
| Average temperature | 14.9°C 58.8°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 116 mm 4.5 ins |
| Rainy days | 14 days |
| Sea temperature | 23.3°C 73.9°F |
| Humidity | 77% |
| Windspeed | 6.1kph 4 mph |
On average October is the 5th wettest month of the year in Kōfu with around 116mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
October temperatures in Kōfu
October rainfall
October 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 Kōfu in October 2025.
Other monthly averages
Best places to visit in October
Kōfu weather stats
| Hottest month: | August | 29.9°C 85.8°F |
|---|---|---|
| Driest month: | December | 28mm 1.1ins |
| Sunniest month: | January | 6.8hrs |
| Coldest month: | January | 7.1°C 44.8°F |
| Wettest month: | August | 182mm 7.2ins |
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