Hamamatsu Weather in October
What's the weather like in Hamamatsu (Shizuoka) in October 2025?
The climate in Hamamatsu during October can be summarized as warm and wet.
October is in the fall / autumn in Hamamatsu and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 15°C (59°F) is normal.
| Daytime temperature | 22.7°C 72.8°F |
|---|---|
| Nightly temperature | 14.8°C 58.6°F |
| Average temperature | 18.7°C 65.7°F |
| Daily sunshine | 5.5 hrs |
| Avg rainfall | 152 mm 6 ins |
| Rainy days | 15 days |
| Sea temperature | 24.2°C 75.5°F |
| Humidity | 71% |
| Windspeed | 10.8kph 7 mph |
On average October is the 6th driest month of the year in Hamamatsu with around 152mm 6 inches of rain making it a wet 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 5.5 hours of sunshine per day.
October temperatures in Hamamatsu
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 Hamamatsu in October 2025.
Other monthly averages
Best places to visit in October
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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