Serrana Weather in December
What's the weather like in Serrana (São Paulo) in December 2025?
The climate in Serrana during December can be summarized as hot, humid and very wet.
December is in the summer in Serrana and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (83°F), whilst at night 19°C (67°F) is normal.
| Daytime temperature | 28.2°C 82.8°F |
|---|---|
| Nightly temperature | 19.2°C 66.6°F |
| Average temperature | 23.7°C 74.7°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 247 mm 9.7 ins |
| Rainy days | 16 days |
| Sea temperature | 25.1°C 77.2°F |
| Humidity | 78% |
| Windspeed | 7.9kph 5 mph |
On average December is the 2nd wettest month of the year in Serrana with around 247mm 9.7 inches of rain making it a very wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
December temperatures in Serrana
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 Serrana in December 2025.
Other monthly averages
Best places to visit in December
Serrana weather stats
| Hottest month: | February | 29°C 84.2°F |
|---|---|---|
| Driest month: | August | 17mm 0.7ins |
| Sunniest month: | July | 6.8hrs |
| Coldest month: | June | 24.8°C 76.6°F |
| Wettest month: | January | 268mm 10.6ins |
© Google