Petrópolis Climate by Month
Petrópolis, Rio de Janeiro, Brazil
Warm days and cool nights all year, with rain spread through the year.
The climate in Petrópolis is one of warm days and cool nights all year, with rain spread through the year. Expect highs of 81°F (27°C) in February and 71°F (22°C) in July, with the coldest nights (July) near 49°F (9°C). About 70 in (1789 mm) of rain falls in a typical year, with no clear rainy season. The air is humid, averaging 81% relative humidity.
- Warmest month
- 81°F(27°C)
- Average high, February
- Coldest nights
- 49°F(9°C)
- Average low, July
- Rain per year
- 70 in(1789 mm)
- No clear rainy season
- Humidity
- 81%
- Sunniest: January
Best and worst months in Petrópolis
Best for weatherJune, August and September are the best time for weather in Petrópolis: highs near 73°F (23°C) and about 2.3 in (58 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the wettest, with 11 in (281 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in August.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Petrópolis weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 80°F(27°C) | 61°F(16°C) | 11 in(281 mm) | 81% | 5.0 |
| FebFebruary | 81°F(27°C) | 61°F(16°C) | 9.1 in(231 mm) | 81% | 5.0 |
| MarMarch | 79°F(26°C) | 60°F(16°C) | 9.7 in(246 mm) | 81% | 4.5 |
| AprApril | 76°F(25°C) | 57°F(14°C) | 5.0 in(126 mm) | 86% | 4.1 |
| MayMay | 72°F(22°C) | 52°F(11°C) | 3.5 in(89 mm) | 84% | 3.4 |
| JunJuneBest | 72°F(22°C) | 50°F(10°C) | 2.2 in(57 mm) | 81% | 3.3 |
| JulJuly | 71°F(22°C) | 49°F(9°C) | 1.9 in(47 mm) | 80% | 3.5 |
| AugAugustBest | 73°F(23°C) | 50°F(10°C) | 1.9 in(48 mm) | 76% | 4.2 |
| SepSeptemberBest | 75°F(24°C) | 54°F(12°C) | 2.8 in(70 mm) | 78% | 4.3 |
| OctOctober | 75°F(24°C) | 56°F(14°C) | 4.7 in(120 mm) | 78% | 4.6 |
| NovNovember | 75°F(24°C) | 58°F(14°C) | 7.4 in(188 mm) | 86% | 4.4 |
| DecDecember | 78°F(26°C) | 60°F(16°C) | 11 in(286 mm) | 83% | 4.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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