Iwanai Weather in May
What's the weather like in Iwanai (Hokkaidō) in May 2024?
The climate in Iwanai during May can be summarized as cool and reasonably dry.
May is in the spring in Iwanai and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 14°C (57°F), whilst at night 5°C (40°F) is normal.
| Daytime temperature | 14.1°C 57.4°F |
|---|---|
| Nightly temperature | 4.5°C 40.1°F |
| Average temperature | 9.3°C 48.7°F |
| Daily sunshine | 6.8 hrs |
| Avg rainfall | 74 mm 2.9 ins |
| Rainy days | 18 days |
| Sea temperature | 9.9°C 49.8°F |
| Humidity | 73% |
| Windspeed | 12.6kph 8 mph |
On average May is the driest month of the year in Iwanai with around 74mm 2.9 inches of rain making it a reasonably dry 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 6.8 hours of sunshine per day.
May temperatures in Iwanai
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 Iwanai in May 2024.
Other monthly averages
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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