Ubatuba Weather in December
What's the weather like in Ubatuba (São Paulo) in December 2025?
The climate in Ubatuba during December can be summarized as warm, humid and very wet.
December is in the summer in Ubatuba and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 18°C (65°F) is normal.
| Daytime temperature | 26.9°C 80.3°F |
|---|---|
| Nightly temperature | 18.2°C 64.7°F |
| Average temperature | 22.5°C 72.5°F |
| Daily sunshine | 4.1 hrs |
| Avg rainfall | 276 mm 10.8 ins |
| Rainy days | 20 days |
| Sea temperature | 24.7°C 76.5°F |
| Humidity | 82% |
| Windspeed | 10.1kph 6 mph |
On average December is the 2nd wettest month of the year in Ubatuba with around 276mm 10.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.1 hours of sunshine per day.
December temperatures in Ubatuba
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 Ubatuba in December 2025.
Other monthly averages
Best places to visit in December
Ubatuba weather stats
| Hottest month: | February | 28.2°C 82.8°F |
|---|---|---|
| Driest month: | July | 69mm 2.7ins |
| Sunniest month: | July | 5.3hrs |
| Coldest month: | July | 22.2°C 72°F |
| Wettest month: | January | 293mm 11.5ins |
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