Rio de Janeiro Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Rio de Janeiro.
Climate overview of Rio de Janeiro
Rainy days can be disturbing during a visit to Rio, but they are very unpredictable. They sometimes occur in high season as well.
Rio de Janeiro Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rio de Janeiro - and find the best time to visit.
Monthly Temperature in Rio de Janeiro
With minimal seasonal shifts, Rio de Janeiro experiences a constant climate year-round. Average daytime temperatures reach a very warm 32°C (90°F) in February. In July, the coolest month of the year, temperatures drop to a comfortable 26°C (79°F).
At night, temperatures range from around 24°C (75°F) in February to 18°C (64°F) in July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Rio de Janeiro
Rio de Janeiro has a notably wet climate with abundant precipitation, recording 1392 mm (55 in) of rainfall per year. Rio de Janeiro can be quite wet during January, receiving approximately 199 mm (7.8 in) of precipitation over 20 rainy days.
In contrast, during the driest month (August), you will experience much drier conditions, with 45 mm (1.8 in) of precipitation spread across 9 rainy days. For more details, please visit our Rio de Janeiro Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Rio de Janeiro
Rio de Janeiro experiences moderate variation in sunshine hours across the seasons. With 7.1 hours daily sunshine in January, it dips to 4.8 hours in September, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Water Temperature in Rio de Janeiro
The mean water temperature over the year ranges from 21°C (70°F) in August to 26°C (79°F) in February.
Water temperature over the year
Humidity in Rio de Janeiro by Month
The relative humidity is high throughout the year in Rio de Janeiro.
The city experiences its highest humidity in March, reaching 80%. In July, the humidity drops to its lowest level at 77%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Rio de Janeiro
The mean wind speed over the year ranges from 2 m/s (4 knots) in April, May, June and July to 4 m/s (8 knots) in November. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Rio de Janeiro
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: January, February and March
- Most sunshine: January, February and March
- Fewest rainy days: June, July and August
- Best for swimming: Any time of year. The sea stays pleasantly warm year-round.
Frequently asked questions about the climate in Rio de Janeiro
What is the best time to visit Rio de Janeiro?
May, June, July, August and September typically offer the most optimal weather in Rio de Janeiro. In contrast, January and December tend to have less optimal conditions.
What temperatures can I expect in Rio de Janeiro?
Daytime highs range from 26°C (79°F) in July to 32°C (90°F) in February. Nighttime lows range from 18°C (64°F) to 24°C (75°F). Temperatures stay relatively stable year-round.
How much rain does Rio de Janeiro get?
Annual rainfall is around 1392 mm (55 in). January is the wettest month with 199 mm (7.8 in), while August is the driest with 45 mm (1.8 in).
How sunny is Rio de Janeiro?
Rio de Janeiro receives around 2,183 hours of sunshine per year. January is the sunniest month with 212 hours, while September is the cloudiest with just 144 hours. Overall, Rio de Janeiro enjoys abundant sunshine.
Rio de Janeiro 3-Day Forecast
Rio de Janeiro on the map
Rio de Janeiro is highlighted - select any city to see its climate.
Popular this month
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