Climate averages 1991–2020
Petrópolis weather
in July.
A mild, fairly dry month: the coolest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
July is a mild month in Petrópolis: daytime highs average 21.4°C and nights cool to about 13.0°C. By daytime temperature it is the coolest month of the year.
Expect about 39 mm of rain on roughly 7 days, which makes July a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 54 min on an average July day.
The nearest other city in this atlas is Magé (22 km away). In July its highs average 24.4°C, 3.1°C warmer than Petrópolis, with 49 mm of rain.
Among the 448 cities listed in Brazil, Petrópolis ranks joint 361st of 448 for the warmest July highs and joint 218th of 448 for the driest July (rainfall, lowest first). The mean July high of those 448 cities is 24.7°C; Petrópolis is 3.3°C cooler than that mean.
From July to August, average highs rise by 1.2°C to 22.5°C, and monthly rainfall rises from 39 mm to 42 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Petrópolis climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.9°C19.6°C | 19.6°C | 315 | 22.9 | 13.313 h |
| February | 27.3°C19.6°C | 19.6°C | 233 | 18.5 | 12.913 h |
| March | 25.9°C19.0°C | 19.0°C | 244 | 22.0 | 12.212 h |
| April | 24.3°C17.4°C | 17.4°C | 105 | 14.0 | 11.612 h |
| May | 22.0°C14.8°C | 14.8°C | 70 | 10.9 | 11.111 h |
| June | 21.6°C13.6°C | 13.6°C | 41 | 7.0 | 10.811 h |
| July, selected | 21.4°C13.0°C | 13.0°C | 39 | 6.6 | 10.911 h |
| August | 22.5°C13.5°C | 13.5°C | 42 | 7.2 | 11.311 h |
| September | 23.8°C15.1°C | 15.1°C | 88 | 10.8 | 11.912 h |
| October | 24.8°C16.7°C | 16.7°C | 137 | 15.1 | 12.613 h |
| November | 24.6°C17.5°C | 17.5°C | 252 | 20.0 | 13.213 h |
| December | 26.1°C18.9°C | 18.9°C | 295 | 23.2 | 13.513 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Magé in JulyBrazil · 22 kmHigh 24.4°C · Low 15.6°C · 49 mm rain
- Teresópolis in JulyBrazil · 23 kmHigh 20.7°C · Low 12.4°C · 48 mm rain
- Duque de Caxias in JulyBrazil · 34 kmHigh 25.1°C · Low 16.1°C · 47 mm rain
- Belford Roxo in JulyBrazil · 37 kmHigh 25.3°C · Low 16.3°C · 34 mm rain
- São Gonçalo in JulyBrazil · 38 kmHigh 24.3°C · Low 16.4°C · 49 mm rain
- Nova Iguaçu in JulyBrazil · 40 kmHigh 25.3°C · Low 15.9°C · 34 mm rain
- Itaboraí in JulyBrazil · 42 kmHigh 24.1°C · Low 15.4°C · 44 mm rain
- Três Rios in JulyBrazil · 43 kmHigh 24.3°C · Low 14.9°C · 18 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Petrópolis) is explained once on the Petrópolis year overview and on the Sources, method and limits page.