Hakodate Weather in August
What's the weather like in Hakodate (Hokkaidō) in August 2025?
The climate in Hakodate during August can be summarized as warm, humid and wet.
August is in the summer in Hakodate and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (78°F), whilst at night 18°C (65°F) is normal.
| Daytime temperature | 25.5°C 77.9°F |
|---|---|
| Nightly temperature | 18.3°C 64.9°F |
| Average temperature | 21.9°C 71.4°F |
| Daily sunshine | 5.5 hrs |
| Avg rainfall | 156 mm 6.2 ins |
| Rainy days | 18 days |
| Sea temperature | 22.1°C 71.8°F |
| Humidity | 83% |
| Windspeed | 9.7kph 6 mph |
On average August is the 2nd wettest month of the year in Hakodate with around 156mm 6.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.5 hours of sunshine per day.
August temperatures in Hakodate
August rainfall
August 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 Hakodate in August 2025.
Other monthly averages
Best places to visit in August
Hakodate weather stats
| Hottest month: | August | 25.3°C 77.5°F |
|---|---|---|
| Driest month: | February | 63mm 2.5ins |
| Sunniest month: | October | 5.7hrs |
| Coldest month: | January | -0.2°C 31.6°F |
| Wettest month: | September | 171mm 6.7ins |
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