Temperature
Warm by day, mild at night.
São Gonçalo is usually most comfortable from May to August. Typical daytime highs range from 79–90°F across the year. Rain varies by season.

Warm by day, mild at night.
It rains on most days. About 18 wet days, more than in most months.
Cloudier spells limit sunshine.
Warm days, with humid periods.
In November, afternoons feel about 85° and nights feel near 77°.
Mostly cloudy skies this month.
Calm winds are typical in November.
November late afternoons are around 81°F, easing to about 75°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 89 | 75 | 9.6 | 20 | 10.0 | 79 |
| Feb | 90 | 75 | 7.2 | 17 | 10.4 | 78 |
| Mar | 87 | 74 | 8.1 | 20 | 9.9 | 80 |
| Apr | 85 | 71 | 4.0 | 13 | 9.8 | 81 |
| May | 80 | 67 | 3.0 | 10 | 9.0 | 82 |
| Jun | 80 | 65 | 1.9 | 7 | 8.9 | 81 |
| Jul | 79 | 64 | 1.9 | 7 | 8.5 | 80 |
| Aug | 80 | 64 | 1.7 | 7 | 9.2 | 78 |
| Sep | 81 | 66 | 3.3 | 11 | 8.9 | 77 |
| Oct | 83 | 69 | 4.5 | 13 | 9.3 | 78 |
| Nov | 84 | 71 | 8.0 | 18 | 9.4 | 80 |
| Dec | 87 | 74 | 9.0 | 20 | 10.1 | 80 |
Similar climates
Want a side-by-side climate view? Compare São Gonçalo 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