Hamamatsu Weather in May
What's the weather like in Hamamatsu (Shizuoka) in May 2025?
The climate in Hamamatsu during May can be summarized as warm and very wet.
May is in the spring in Hamamatsu and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 15°C (58°F) is normal.
| Daytime temperature | 22.8°C 73°F |
|---|---|
| Nightly temperature | 14.7°C 58.4°F |
| Average temperature | 18.7°C 65.7°F |
| Daily sunshine | 6.7 hrs |
| Avg rainfall | 204 mm 8 ins |
| Rainy days | 14 days |
| Sea temperature | 20.7°C 69.3°F |
| Humidity | 72% |
| Windspeed | 11.5kph 7 mph |
On average May is the 5th wettest month of the year in Hamamatsu with around 204mm 8 inches of rain making it a very wet 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 6.7 hours of sunshine per day.
May temperatures in Hamamatsu
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 Hamamatsu in May 2025.
Other monthly averages
Hamamatsu weather stats
| Hottest month: | August | 30.5°C 86.9°F |
|---|---|---|
| Driest month: | December | 56mm 2.2ins |
| Sunniest month: | January | 6.7hrs |
| Coldest month: | January | 9.7°C 49.5°F |
| Wettest month: | June | 267mm 10.5ins |
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