São Lourenço da Serra Weather in December
What's the weather like in São Lourenço da Serra (São Paulo) in December 2025?
The climate in São Lourenço da Serra during December can be summarized as warm, humid and very wet.
December is in the summer in São Lourenço da Serra and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 25°C (77°F), whilst at night 16°C (61°F) is normal.
| Daytime temperature | 25°C 76.9°F |
|---|---|
| Nightly temperature | 16.3°C 61.3°F |
| Average temperature | 20.6°C 69.1°F |
| Daily sunshine | 4.6 hrs |
| Avg rainfall | 221 mm 8.7 ins |
| Rainy days | 24 days |
| Sea temperature | 24.8°C 76.6°F |
| Humidity | 81% |
| Windspeed | 11.2kph 7 mph |
On average December is the 4th wettest month of the year in São Lourenço da Serra with around 221mm 8.7 inches of rain making it a very wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.6 hours of sunshine per day.
December temperatures in São Lourenço da Serra
December rainfall
December 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 Lourenço da Serra in December 2025.
Other monthly averages
Best places to visit in December
São Lourenço da Serra weather stats
| Hottest month: | February | 26.1°C 79°F |
|---|---|---|
| Driest month: | July | 70mm 2.8ins |
| Sunniest month: | July | 5.5hrs |
| Coldest month: | July | 20.1°C 68.2°F |
| Wettest month: | January | 276mm 10.9ins |
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