Curitiba Weather in December
What's the weather like in Curitiba (Paraná) in December 2025?
The climate in Curitiba during December can be summarized as warm, humid and wet.
December is in the summer in Curitiba and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 25°C (77°F), whilst at night 15°C (60°F) is normal.
| Daytime temperature | 25.2°C 77.3°F |
|---|---|
| Nightly temperature | 15.3°C 59.5°F |
| Average temperature | 20.2°C 68.4°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 154 mm 6.1 ins |
| Rainy days | 26 days |
| Sea temperature | 24.6°C 76.3°F |
| Humidity | 81% |
| Windspeed | 10.1kph 6 mph |
On average December is the 3rd wettest month of the year in Curitiba with around 154mm 6.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 26 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 Curitiba
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 Curitiba in December 2025.
Other monthly averages
Best places to visit in December
Curitiba weather stats
| Hottest month: | February | 25.6°C 78.1°F |
|---|---|---|
| Driest month: | August | 75mm 3ins |
| Sunniest month: | May | 5.1hrs |
| Coldest month: | June | 18.1°C 64.6°F |
| Wettest month: | January | 187mm 7.4ins |
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