Temperature
Hot by day, warm at night.
Cayenne is usually most comfortable in September and October. Typical daytime highs range from 82–88°F across the year. Rain is frequent in many months.

Hot by day, warm at night.
It rains on most days. About 19 wet days, fewer than in most months.
Cloudier spells limit sunshine.
Very humid air is a major factor this month.
In November, afternoons feel about 90° and nights feel near 82°.
Mostly cloudy skies this month.
Calm winds are typical in November.
November late afternoons are around 84°F, easing to about 80°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 83 | 75 | 9.1 | 25 | 9.8 | 86 |
| Feb | 82 | 75 | 7.4 | 21 | 9.8 | 84 |
| Mar | 83 | 76 | 6.5 | 22 | 10.2 | 83 |
| Apr | 84 | 76 | 9.6 | 24 | 9.6 | 85 |
| May | 84 | 76 | 15.2 | 29 | 8.9 | 88 |
| Jun | 84 | 75 | 13.7 | 28 | 9.4 | 88 |
| Jul | 85 | 74 | 9.3 | 26 | 10.7 | 86 |
| Aug | 87 | 75 | 4.6 | 17 | 11.1 | 83 |
| Sep | 88 | 75 | 1.9 | 10 | 11.2 | 80 |
| Oct | 88 | 75 | 2.3 | 11 | 11.3 | 80 |
| Nov | 86 | 75 | 5.6 | 19 | 10.8 | 83 |
| Dec | 84 | 75 | 9.8 | 26 | 10.0 | 87 |
Similar climates
Want a side-by-side climate view? Compare Cayenne with Bangkok.
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