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Petrópolis, Brazil climate
Cwa Monsoon-influenced humid subtropical
Petrópolis has a remarkably steady warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is February with an average daily high near 28°C, while the coldest is July averaging around 13°C at night. Precipitation totals about 1565 mm a year and is strongly seasonal — December alone averages 310 mm while July barely receives 14 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Petrópolis climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 27 | 25 | 23 | 22 | 22 | 23 | 24 | 25 | 25 | 27 |
| Avg temp (°C) | 22 | 22 | 21 | 20 | 18 | 17 | 17 | 17 | 19 | 20 | 20 | 21 |
| Avg low (°C) | 18 | 18 | 18 | 16 | 14 | 13 | 13 | 13 | 14 | 16 | 16 | 18 |
| Precipitation (mm) | 297 | 170 | 207 | 79 | 39 | 17 | 14 | 19 | 58 | 118 | 236 | 310 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 27 | 25 | 23 | 22 |
| Avg temp (°C) | 22 | 22 | 21 | 20 | 18 | 17 |
| Avg low (°C) | 18 | 18 | 18 | 16 | 14 | 13 |
| Precipitation (mm) | 297 | 170 | 207 | 79 | 39 | 17 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 23 | 24 | 25 | 25 | 27 |
| Avg temp (°C) | 17 | 17 | 19 | 20 | 20 | 21 |
| Avg low (°C) | 13 | 13 | 14 | 16 | 16 | 18 |
| Precipitation (mm) | 14 | 19 | 58 | 118 | 236 | 310 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 69 | 72 | 60 | 57 | 49 | 45 | 45 | 57 | 70 | 82 | 80 |
| Relative humidity (%) | 84 | 84 | 86 | 85 | 84 | 82 | 78 | 74 | 71 | 73 | 79 | 83 |
| Wind speed (mph) | 3.7 | 3.5 | 3.1 | 3.0 | 3.1 | 3.1 | 3.5 | 4.0 | 4.6 | 4.6 | 4.3 | 3.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 76 | 69 | 72 | 60 | 57 | 49 |
| Relative humidity (%) | 84 | 84 | 86 | 85 | 84 | 82 |
| Wind speed (mph) | 3.7 | 3.5 | 3.1 | 3.0 | 3.1 | 3.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 45 | 45 | 57 | 70 | 82 | 80 |
| Relative humidity (%) | 78 | 74 | 71 | 73 | 79 | 83 |
| Wind speed (mph) | 3.5 | 4.0 | 4.6 | 4.6 | 4.3 | 3.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from INMET, Brazil's national meteorological institute, measured at Juiz DE Fora, about 84 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.