Temperature
Pleasant by day, brisk at night.
Mild days with cool nights and good sunshine.
Pleasant by day, brisk at night.
Several rainy days. About 10 wet days, fewer than in most months.
A mix of sunshine and cloud.
In July, afternoons feel about 62° and nights feel near 49°.
Partly cloudy skies this month.
Calm winds are typical in July.
July late afternoons are around 65°F, easing to about 58°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