Kōfu Weather in May
What's the weather like in Kōfu (Yamanashi) in May 2025?
The climate in Kōfu during May can be summarized as mild and damp.
May is in the spring in Kōfu and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 23°C (73°F), whilst at night 11°C (52°F) is normal.
| Daytime temperature | 22.7°C 72.9°F |
|---|---|
| Nightly temperature | 10.9°C 51.6°F |
| Average temperature | 16.8°C 62.2°F |
| Daily sunshine | 6.6 hrs |
| Avg rainfall | 109 mm 4.3 ins |
| Rainy days | 15 days |
| Sea temperature | 19.8°C 67.6°F |
| Humidity | 69% |
| Windspeed | 7.9kph 5 mph |
On average May is the 6th wettest month of the year in Kōfu with around 109mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
May temperatures in Kōfu
May rainfall
May 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 May 2025.
Other monthly averages
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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