Temperature
Warm by day, mild at night.
Bertioga is usually most comfortable from June to August. Typical daytime highs range from 79–89°F across the year. Rain is frequent in many months.

Warm by day, mild at night.
It rains on most days. About 21 wet days, more than in most months.
Cloudier spells limit sunshine.
Very humid air is a major factor this month.
In November, afternoons feel about 87° and nights feel near 78°.
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 | 88 | 76 | 15.9 | 27 | 9.8 | 85 |
| Feb | 89 | 76 | 13.5 | 24 | 10.1 | 85 |
| Mar | 87 | 75 | 13.0 | 26 | 9.6 | 86 |
| Apr | 85 | 72 | 5.8 | 17 | 9.4 | 85 |
| May | 80 | 67 | 4.4 | 13 | 8.3 | 85 |
| Jun | 80 | 65 | 3.2 | 9 | 8.1 | 84 |
| Jul | 79 | 64 | 3.7 | 9 | 8.1 | 83 |
| Aug | 80 | 64 | 3.1 | 10 | 8.6 | 83 |
| Sep | 81 | 67 | 5.8 | 15 | 8.6 | 84 |
| Oct | 83 | 70 | 7.1 | 18 | 8.9 | 86 |
| Nov | 84 | 71 | 9.5 | 21 | 9.6 | 85 |
| Dec | 87 | 74 | 11.9 | 25 | 10.4 | 85 |
Similar climates
Want a side-by-side climate view? Compare Bertioga 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 27, 2026
Data & methodology