Porto-Novo Weather in May
What's the weather like in Porto-Novo (Quémé) in May 2026?
The climate in Porto-Novo during May can be summarized as hot, humid and wet.
May is in the spring in Porto-Novo and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (75°F) is normal.
| Daytime temperature | 31°C 87.8°F |
|---|---|
| Nightly temperature | 24°C 75.2°F |
| Average temperature | 27.5°C 81.5°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 195 mm 7.7 ins |
| Rainy days | 13 days |
| Sea temperature | 29.1°C 84.4°F |
| Humidity | 82% |
| Windspeed | 10.8kph 7 mph |
On average May is the 2nd wettest month of the year in Porto-Novo with around 195mm 7.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 13 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 Porto-Novo
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 Porto-Novo in May 2025.
Other monthly averages
Porto-Novo weather stats
| Hottest month: | March | 32.2°C 90°F |
|---|---|---|
| Driest month: | January | 19mm 0.7ins |
| Sunniest month: | November | 8hrs |
| Coldest month: | August | 27.8°C 82°F |
| Wettest month: | June | 334mm 13.1ins |
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