Temperature
Warm by day, warm at night.
Warm days and plenty of sun. Humid air is the main drawback.

Warm by day, warm at night.
Several rainy days, mostly brief and on-and-off. About 13 wet days, fewer than in most months.
Plenty of sun this month.
Very humid air is a major factor this month.
In September, afternoons feel about 83° and nights feel near 76°.
Partly cloudy skies this month.
September's typical breeze keeps the air from feeling as stagnant.
September late afternoons are around 82°F, easing to about 77°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 87 | 76 | 2.1 | 16 | 11.4 | 78 |
| Feb | 87 | 76 | 2.6 | 17 | 11.1 | 79 |
| Mar | 87 | 76 | 3.5 | 20 | 10.8 | 81 |
| Apr | 86 | 76 | 4.2 | 21 | 10.4 | 83 |
| May | 84 | 75 | 4.2 | 22 | 10.4 | 85 |
| Jun | 82 | 73 | 4.2 | 20 | 10.1 | 85 |
| Jul | 81 | 72 | 3.9 | 20 | 10.2 | 84 |
| Aug | 82 | 71 | 2.0 | 16 | 10.8 | 82 |
| Sep | 83 | 72 | 1.3 | 13 | 11.4 | 79 |
| Oct | 85 | 74 | 0.9 | 9 | 11.9 | 77 |
| Nov | 86 | 75 | 0.8 | 9 | 11.9 | 76 |
| Dec | 87 | 76 | 1.1 | 11 | 11.7 | 77 |
Similar climates
Want a side-by-side climate view? Compare João Pessoa with Aracaju.
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