Iwanai Weather in August
What's the weather like in Iwanai (Hokkaidō) in August 2024?
The climate in Iwanai during August can be summarized as warm and wet.
August is in the summer in Iwanai and is typically the warmest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 16°C (60°F) is normal.
| Daytime temperature | 23.4°C 74.1°F |
|---|---|
| Nightly temperature | 15.8°C 60.4°F |
| Average temperature | 19.6°C 67.3°F |
| Daily sunshine | 5.4 hrs |
| Avg rainfall | 155 mm 6.1 ins |
| Rainy days | 18 days |
| Sea temperature | 21.7°C 71.1°F |
| Humidity | 82% |
| Windspeed | 10.8kph 7 mph |
On average August is the 4th wettest month of the year in Iwanai with around 155mm 6.1 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 5.4 hours of sunshine per day.
August temperatures in Iwanai
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 Iwanai in August 2024.
Other monthly averages
Best places to visit in August
Iwanai weather stats
| Hottest month: | August | 23.2°C 73.8°F |
|---|---|---|
| Driest month: | May | 74mm 2.9ins |
| Sunniest month: | April | 6.4hrs |
| Coldest month: | January | -4°C 24.8°F |
| Wettest month: | December | 164mm 6.5ins |
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