Average annual temperature is 25.8 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: 20.9 °C
Number of sunny days: 5 days
Number of rainy days: 360 days
Look at detailed online map of Dégrad Janson
* Weather data for Dégrad Janson French Guiana is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 29.1 | 28.7 | 30.5 | 31.0 | 31.0 | 32.1 | 31.8 | 33.4 | 34.8 | 35.2 | 33.4 | 32.0 |
| Average daytime temperature (°C) | 26.7 | 26.7 | 29.0 | 28.1 | 28.3 | 29.1 | 30.1 | 31.9 | 33.3 | 33.1 | 31.3 | 30.2 |
| Average temperature (°C) | 23.8 | 23.9 | 25.5 | 25.2 | 25.3 | 25.2 | 25.6 | 26.7 | 27.5 | 27.7 | 26.8 | 26.1 |
| Average night temperature (°C) | 22.1 | 22.3 | 23.0 | 23.0 | 23.2 | 22.6 | 22.7 | 22.9 | 23.3 | 23.8 | 23.8 | 23.5 |
| Absolute minimum temperature (°C) | 20.9 | 20.9 | 21.6 | 21.2 | 22.2 | 21.7 | 21.9 | 21.4 | 22.1 | 21.7 | 22.5 | 22.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.4 | 12.4 | 12.3 | 12.1 | 12.0 | 11.9 | 11.8 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 4.7 | 4.1 | 8.8 | 6.2 | 5.4 | 7.9 | 9.7 | 10.8 | 10.9 | 10.7 | 10.4 | 9.9 |
| Precipitation (mm) | 769 | 796 | 198 | 633 | 757 | 619 | 410 | 198 | 82 | 144 | 179 | 200 |
| Sunny days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 1 |
| Rainy days | 30 | 28 | 31 | 30 | 31 | 30 | 31 | 31 | 29 | 29 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Dégrad Janson during the most sunny months:
The largest precipitation sum in Dégrad Janson is at