Average annual temperature is 15.5 °C
Absolute maximum temperature: 22.8 °C
Absolute minimum temperature: 6.2 °C
Number of sunny days: 19 days
Number of rainy days: 346 days
Look at detailed online map of Cayenne
* Weather data for Cayenne Réunion is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 21.2 | 22.8 | 21.5 | 20.6 | 19.5 | 18.7 | 17.8 | 18.0 | 18.5 | 20.8 | 20.5 | 22.8 |
| Average daytime temperature (°C) | 19.4 | 19.7 | 19.6 | 19.3 | 17.8 | 16.2 | 15.9 | 15.9 | 16.8 | 18.6 | 18.7 | 20.1 |
| Average temperature (°C) | 17.2 | 17.3 | 17.2 | 16.8 | 15.4 | 13.3 | 12.7 | 13.3 | 13.7 | 15.5 | 16.1 | 17.4 |
| Average night temperature (°C) | 15.3 | 15.1 | 14.9 | 14.7 | 13.1 | 10.6 | 9.6 | 11.0 | 10.7 | 12.6 | 13.3 | 14.4 |
| Absolute minimum temperature (°C) | 13.8 | 12.0 | 10.8 | 12.1 | 9.6 | 6.2 | 6.9 | 8.8 | 8.7 | 10.0 | 10.9 | 10.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.2 | 12.8 | 12.2 | 11.6 | 11.1 | 10.9 | 11.0 | 11.4 | 12.0 | 12.6 | 13.1 | 13.4 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 9.4 | 10.3 | 10.1 | 9.4 | 9.4 | 9.6 | 9.5 | 9.2 | 10.5 | 11.2 | 10.5 | 10.4 |
| Precipitation (mm) | 758 | 367 | 362 | 241 | 131 | 96 | 116 | 276 | 144 | 217 | 347 | 385 |
| Sunny days | 0 | 0 | 1 | 0 | 1 | 6 | 4 | 1 | 1 | 3 | 0 | 2 |
| Rainy days | 31 | 28 | 30 | 30 | 30 | 24 | 27 | 30 | 29 | 28 | 30 | 29 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cayenne is at