Rio Claro Weather in May
What's the weather like in Rio Claro (Mayaro) in May 2025?
The climate in Rio Claro during May can be summarized as hot, humid and wet.
May is in the spring in Rio Claro and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 23°C (72°F) is normal.
| Daytime temperature | 31.2°C 88.1°F |
|---|---|
| Nightly temperature | 22.5°C 72.4°F |
| Average temperature | 26.8°C 80.2°F |
| Daily sunshine | 7.5 hrs |
| Avg rainfall | 148 mm 5.8 ins |
| Rainy days | 19 days |
| Sea temperature | 27.4°C 81.4°F |
| Humidity | 80% |
| Windspeed | 11.2kph 7 mph |
On average May is the 5th driest month of the year in Rio Claro with around 148mm 5.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.5 hours of sunshine per day.
May temperatures in Rio Claro
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 Rio Claro in May 2025.
Other monthly averages
Rio Claro weather stats
| Hottest month: | May | 30.9°C 87.6°F |
|---|---|---|
| Driest month: | March | 55mm 2.2ins |
| Sunniest month: | February | 8.3hrs |
| Coldest month: | January | 29.3°C 84.7°F |
| Wettest month: | June | 285mm 11.2ins |
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