Rio de Janeiro Weather in December
What's the weather like in Rio de Janeiro (Rio de Janeiro) in December 2024?
The climate in Rio de Janeiro during December can be summarized as hot, humid and very wet.
December is in the summer in Rio de Janeiro and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (83°F), whilst at night 20°C (69°F) is normal.
| Daytime temperature | 28.2°C 82.7°F |
|---|---|
| Nightly temperature | 20.3°C 68.5°F |
| Average temperature | 24.2°C 75.6°F |
| Daily sunshine | 5.5 hrs |
| Avg rainfall | 207 mm 8.1 ins |
| Rainy days | 21 days |
| Sea temperature | 24.8°C 76.6°F |
| Humidity | 81% |
| Windspeed | 9.4kph 6 mph |
On average December is the wettest month of the year in Rio de Janeiro with around 207mm 8.1 inches of rain making it a very wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.5 hours of sunshine per day.
December temperatures in Rio de Janeiro
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 Rio de Janeiro in December 2024.
Other monthly averages
Best places to visit in December
Rio de Janeiro weather stats
| Hottest month: | February | 29.9°C 85.8°F |
|---|---|---|
| Driest month: | July | 66mm 2.6ins |
| Sunniest month: | July | 6.6hrs |
| Coldest month: | July | 24.2°C 75.6°F |
| Wettest month: | December | 207mm 8.1ins |
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