Temperature
Warm by day, mild at night.
Porto Alegre is usually most comfortable in April, June, August, and November. Typical daytime highs range from 66–85°F across the year. Rain is frequent in many months.
Warm by day, mild at night.
Several rainy days. About 11 wet days this month.
Plenty of sun this month.
Warm days, with humid periods.
In November, afternoons feel about 78° and nights feel near 64°.
Partly cloudy skies this month.
Calm winds are typical in November.
November late afternoons are around 79°F, easing to about 71°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 85 | 69 | 5.4 | 14 | 11.0 | 75 |
| Feb | 85 | 69 | 5.0 | 14 | 10.7 | 77 |
| Mar | 83 | 67 | 4.4 | 12 | 9.8 | 78 |
| Apr | 78 | 62 | 4.1 | 10 | 8.6 | 80 |
| May | 71 | 56 | 4.2 | 9 | 7.7 | 83 |
| Jun | 67 | 52 | 4.5 | 10 | 6.7 | 84 |
| Jul | 66 | 50 | 5.5 | 10 | 6.9 | 83 |
| Aug | 70 | 52 | 4.7 | 10 | 8.0 | 81 |
| Sep | 71 | 55 | 5.8 | 11 | 7.9 | 80 |
| Oct | 76 | 60 | 6.6 | 12 | 8.6 | 78 |
| Nov | 80 | 63 | 4.9 | 11 | 10.4 | 75 |
| Dec | 84 | 67 | 4.9 | 12 | 11.1 | 74 |
Similar climates
Want a side-by-side climate view? Compare Porto Alegre with Rio de Janeiro.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 26, 2026
Data & methodology