Weatheo

Petrópolis Weather by Month

Average temperatures, rainfall and humidity for Petrópolis, Brazil, month by month, built from OpenWeather’s historical records. Use it to see what a typical Petrópolis month looks like before you travel — then check the live Petrópolis forecast for the days ahead.

Warmest month

February

30°C average high

Coolest month

July

14°C average low

Wettest month

January

78 mm of rain

Driest month

July

23 mm of rain

Average temperature and rainfall in Petrópolis by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January30°C21°C12°C / 38°C
78 mm
78%8 km/h
February30°C21°C15°C / 38°C
72 mm
78%8 km/h
March29°C21°C13°C / 37°C
64 mm
80%7 km/h
April27°C19°C11°C / 36°C
42 mm
80%7 km/h
May25°C17°C8°C / 34°C
39 mm
80%7 km/h
June24°C16°C7°C / 34°C
33 mm
79%7 km/h
July24°C14°C5°C / 34°C
23 mm
76%7 km/h
August24°C14°C6°C / 34°C
34 mm
74%8 km/h
September26°C17°C7°C / 38°C
33 mm
75%8 km/h
October26°C18°C6°C / 37°C
56 mm
78%8 km/h
November26°C19°C10°C / 40°C
76 mm
79%8 km/h
December28°C20°C13°C / 40°C
72 mm
79%8 km/h

Best time to visit Petrópolis

The most comfortable time to visit Petrópolis is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around January, totalling about 622 mm a year.

Travellers who prefer heat should aim for February, when highs average 30°C. January is the month to avoid if rain would spoil your plans — it averages 78 mm, roughly 3× the rainfall of the driest month (July).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Petrópolis forecast for what is happening now.

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