Petrópolis Weather & Climate: Best Time to Visit
With consistently stable weather, Petrópolis, Rio de Janeiro State, Brazil, sees little seasonal temperature change. Daytime highs average 28°C (82°F), ranging from 31°C (88°F) in February to 25°C (77°F) in July.
With around 1998 mm (79 in) of annual rainfall, Petrópolis has a notably wet climate. However, this rainfall is not evenly distributed — the city has a distinct rainy season from November to March. The wettest month is January. The sunniest month is January, with 7.1 hours of sunshine per day on average.
Monthly Temperature in Petrópolis
The climate in Petrópolis remains fairly constant, offering comfortable temperatures throughout the year. Average daytime temperatures reach a very warm 31°C (88°F) in February. In July, the coolest month of the year, temperatures drop to a comfortable 25°C (77°F).
At night, temperatures range from around 21°C (70°F) in February to 15°C (59°F) in July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Petrópolis
Petrópolis is known for its substantial rainfall, with annual precipitation reaching 1998 mm (79 in). Petrópolis can be quite wet during January, receiving approximately 323 mm (13 in) of precipitation over 22 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 47 mm (1.9 in) of precipitation spread across 10 rainy days days. For more details, please visit our Petrópolis 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 Petrópolis
Petrópolis 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
Humidity in Petrópolis by Month
The relative humidity is high throughout the year in Petrópolis.
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
Petrópolis 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Petrópolis
During April, May, June, July, August, September and October, Petrópolis experiences its most favorable weather, with temperatures between 25°C (77°F) and 28°C (83°F). These mild conditions make it an excellent time for a visit.The weather does bring rainfall during this period, between 47 mm (1.9 in) and 146 mm (5.7 in).
Plan accordingly for January, February, March, November and December, when conditions bring the heaviest precipitation. Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.
