Porto Alegre Climate by Month
Porto Alegre, Rio Grande do Sul, Brazil
Warm summers and mild winters, with rain spread through the year.
Porto Alegre has warm summers and mild winters, with rain spread through the year. January is the warmest month, with highs around 84°F (29°C); July is the coolest at 66°F (19°C), and nights dip to 51°F (11°C). About 57 in (1456 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 84°F(29°C)
- Average high, January
- Coldest nights
- 51°F(11°C)
- Average low, July
- Rain per year
- 57 in(1456 mm)
- No clear rainy season
- Humidity
- 76%
- Sunniest: December
Best and worst months in Porto Alegre
Best for weatherThe most comfortable weather comes in April, October and November, with highs around 77°F (25°C) and about 4.7 in (120 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the wettest, with 5.5 in (139 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 April.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Porto Alegre weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 84°F(29°C) | 69°F(20°C) | 5.5 in(139 mm) | 74% | 5.7 |
| FebFebruary | 84°F(29°C) | 69°F(20°C) | 4.8 in(123 mm) | 78% | 5.3 |
| MarMarch | 82°F(28°C) | 67°F(19°C) | 5.1 in(130 mm) | 76% | 4.5 |
| AprAprilBest | 78°F(25°C) | 63°F(17°C) | 4.3 in(110 mm) | 76% | 3.4 |
| MayMay | 71°F(22°C) | 58°F(14°C) | 4.6 in(117 mm) | 78% | 2.5 |
| JunJune | 68°F(20°C) | 54°F(12°C) | 4.7 in(120 mm) | 82% | 2.1 |
| JulJuly | 66°F(19°C) | 51°F(11°C) | 4.6 in(118 mm) | 76% | 2.4 |
| AugAugust | 70°F(21°C) | 53°F(12°C) | 3.9 in(99 mm) | 75% | 3.0 |
| SepSeptember | 71°F(22°C) | 57°F(14°C) | 5.1 in(130 mm) | 74% | 3.6 |
| OctOctoberBest | 75°F(24°C) | 60°F(16°C) | 5.9 in(149 mm) | 78% | 4.3 |
| NovNovemberBest | 80°F(27°C) | 64°F(18°C) | 4.0 in(101 mm) | 72% | 5.6 |
| DecDecember | 83°F(28°C) | 66°F(19°C) | 4.7 in(120 mm) | 75% | 5.9 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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