São Tomé Weather in May
What's the weather like in São Tomé (Rio Grande do Norte) in May 2025?
The climate in São Tomé during May can be summarized as hot, humid and reasonably dry.
May is in the fall / autumn in São Tomé and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (85°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 29.5°C 85.1°F |
|---|---|
| Nightly temperature | 21.1°C 70°F |
| Average temperature | 25.3°C 77.5°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 55 mm 2.2 ins |
| Rainy days | 22 days |
| Sea temperature | 28.4°C 83.1°F |
| Humidity | 79% |
| Windspeed | 8.3kph 5 mph |
On average May is the 3rd wettest month of the year in São Tomé with around 55mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 22 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 São Tomé
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 São Tomé in May 2025.
Other monthly averages
São Tomé weather stats
| Hottest month: | February | 31.4°C 88.5°F |
|---|---|---|
| Driest month: | October | 1mm 0ins |
| Sunniest month: | November | 9.4hrs |
| Coldest month: | July | 28.7°C 83.7°F |
| Wettest month: | March | 104mm 4.1ins |
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