Rosny-sous-Bois Weather in May
What's the weather like in Rosny-sous-Bois (Île-de-France) in May 2025?
The climate in Rosny-sous-Bois during May can be summarized as mild and reasonably dry.
May is in the spring in Rosny-sous-Bois and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 18°C (64°F), whilst at night 9°C (49°F) is normal.
| Daytime temperature | 18°C 64.3°F |
|---|---|
| Nightly temperature | 9.3°C 48.7°F |
| Average temperature | 13.6°C 56.5°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 62 mm 2.4 ins |
| Rainy days | 16 days |
| Sea temperature | 12.7°C 54.8°F |
| Humidity | 76% |
| Windspeed | 13.3kph 8 mph |
On average May is the wettest month of the year in Rosny-sous-Bois with around 62mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
May temperatures in Rosny-sous-Bois
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 Rosny-sous-Bois in May 2025.
Other monthly averages
Rosny-sous-Bois weather stats
| Hottest month: | July | 23.3°C 73.9°F |
|---|---|---|
| Driest month: | April | 45mm 1.8ins |
| Sunniest month: | August | 7.8hrs |
| Coldest month: | January | 5.9°C 42.6°F |
| Wettest month: | May | 62mm 2.4ins |
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