Temperature
Warm by day, brisk at night.
Warm days and plenty of sun.

Warm by day, brisk at night.
Several rainy days. About 9 wet days this month.
Plenty of sun this month.
Warm days with mostly dry air.
In September, afternoons feel about 79° and nights feel near 60°.
Partly cloudy skies this month.
Calm winds are typical in September.
September late afternoons are around 80°F, easing to about 70°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 83 | 68 | 10.2 | 23 | 9.6 | 79 |
| Feb | 84 | 68 | 6.9 | 19 | 10.2 | 78 |
| Mar | 83 | 67 | 5.4 | 17 | 10.0 | 78 |
| Apr | 81 | 64 | 2.7 | 9 | 10.0 | 75 |
| May | 76 | 59 | 2.6 | 7 | 8.9 | 74 |
| Jun | 75 | 57 | 1.9 | 5 | 9.0 | 74 |
| Jul | 75 | 56 | 1.7 | 4 | 9.3 | 69 |
| Aug | 78 | 57 | 1.4 | 4 | 9.9 | 65 |
| Sep | 81 | 61 | 3.3 | 9 | 10.1 | 66 |
| Oct | 82 | 64 | 4.9 | 14 | 10.0 | 72 |
| Nov | 82 | 65 | 6.3 | 16 | 10.4 | 74 |
| Dec | 83 | 67 | 8.0 | 20 | 10.4 | 77 |
Similar climates
Want a side-by-side climate view? Compare Campinas 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