Average annual temperature is 13.1 °C
Absolute maximum temperature: 38.2 °C
Absolute minimum temperature: -5.1 °C
Number of sunny days: 152 days
Number of rainy days: 207 days
Number of snow days: 6 days
Look at detailed online map of Cayen
* Weather data for Cayen France is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15.5 | 16.5 | 21.8 | 24.3 | 26.2 | 30.7 | 36.6 | 38.2 | 33.9 | 30.7 | 17.8 | 14.7 |
| Average daytime temperature (°C) | 7.2 | 9.9 | 13.0 | 14.5 | 19.6 | 26.8 | 27.0 | 27.6 | 27.2 | 21.3 | 11.4 | 8.7 |
| Average temperature (°C) | 4.8 | 4.7 | 8.3 | 9.9 | 14.9 | 20.8 | 21.4 | 21.9 | 20.8 | 15.6 | 8.2 | 5.5 |
| Average night temperature (°C) | 2.1 | 0.8 | 4.0 | 5.3 | 10.2 | 15.3 | 16.2 | 16.9 | 15.3 | 10.9 | 5.0 | 2.4 |
| Absolute minimum temperature (°C) | -3.5 | -4.4 | -3.9 | -1.5 | 6.4 | 12.5 | 12.0 | 10.6 | 6.8 | 4.8 | -1.3 | -5.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.6 | 6.3 | 7.9 | 7.8 | 9.7 | 12.6 | 12.5 | 11.1 | 10.4 | 7.7 | 4.5 | 3.5 |
| Precipitation (mm) | 66 | 9 | 101 | 87 | 92 | 103 | 53 | 33 | 36 | 99 | 133 | 103 |
| Sunny days | 8 | 18 | 12 | 8 | 10 | 13 | 12 | 15 | 23 | 17 | 7 | 9 |
| Rainy days | 17 | 10 | 19 | 22 | 21 | 17 | 19 | 16 | 7 | 14 | 23 | 22 |
| Snow days | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Cayen during the most sunny months:
Months with the longest average daylight duration in Cayen:
The largest precipitation sum in Cayen is at