São João da Boa Vista Weather in May
What's the weather like in São João da Boa Vista (São Paulo) in May 2026?
The climate in São João da Boa Vista during May can be summarized as mild and reasonably dry.
May is in the fall / autumn in São João da Boa Vista and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 11°C (52°F) is normal.
| Daytime temperature | 23.4°C 74°F |
|---|---|
| Nightly temperature | 11.3°C 52.3°F |
| Average temperature | 17.3°C 63.1°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 53 mm 2.1 ins |
| Rainy days | 8 days |
| Sea temperature | 23.9°C 75°F |
| Humidity | 76% |
| Windspeed | 6.8kph 4 mph |
On average May is the 4th driest month of the year in São João da Boa Vista with around 53mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 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 João da Boa Vista
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 João da Boa Vista in May 2025.
Other monthly averages
São João da Boa Vista weather stats
| Hottest month: | February | 26.7°C 80.1°F |
|---|---|---|
| Driest month: | July | 25mm 1ins |
| Sunniest month: | August | 7.6hrs |
| Coldest month: | July | 22.1°C 71.8°F |
| Wettest month: | January | 285mm 11.2ins |
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