Piracicaba Weather in May
What's the weather like in Piracicaba (São Paulo) in May 2026?
The climate in Piracicaba during May can be summarized as warm and reasonably dry.
May is in the fall / autumn in Piracicaba and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 13°C (55°F) is normal.
| Daytime temperature | 24.4°C 75.9°F |
|---|---|
| Nightly temperature | 12.8°C 55°F |
| Average temperature | 18.6°C 65.5°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 42 mm 1.6 ins |
| Rainy days | 10 days |
| Sea temperature | 23.5°C 74.2°F |
| Humidity | 74% |
| Windspeed | 6.5kph 4 mph |
On average May is the 3rd driest month of the year in Piracicaba with around 42mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 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 Piracicaba
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 Piracicaba in May 2025.
Other monthly averages
Piracicaba weather stats
| Hottest month: | February | 28.1°C 82.6°F |
|---|---|---|
| Driest month: | July | 25mm 1ins |
| Sunniest month: | August | 8.1hrs |
| Coldest month: | July | 23.2°C 73.8°F |
| Wettest month: | January | 241mm 9.5ins |
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