Rio de Janeiro Weather in March
What's the weather like in Rio de Janeiro (Rio de Janeiro) in March 2025?
The climate in Rio de Janeiro during March can be summarized as hot, humid and wet.
March is in the fall / autumn in Rio de Janeiro and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 29.2°C 84.6°F |
|---|---|
| Nightly temperature | 21°C 69.8°F |
| Average temperature | 25.1°C 77.2°F |
| Daily sunshine | 6.7 hrs |
| Avg rainfall | 183 mm 7.2 ins |
| Rainy days | 15 days |
| Sea temperature | 26.3°C 79.3°F |
| Humidity | 81% |
| Windspeed | 8.6kph 5 mph |
On average March is the 4th wettest month of the year in Rio de Janeiro with around 183mm 7.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 hours of sunshine per day.
March temperatures in Rio de Janeiro
March rainfall
March 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 March 2025.
Other monthly averages
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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