Average annual temperature is 26.4 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: 21.1 °C
Number of sunny days: 30 days
Number of rainy days: 335 days
Look at detailed online map of Nouvelle Alliance
* Weather data for Nouvelle Alliance 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) | 29.9 | 30.8 | 31.7 | 32.2 | 32.4 | 32.9 | 32.9 | 36.1 | 37.4 | 37.7 | 35.9 | 33.2 |
| Average daytime temperature (°C) | 27.6 | 27.6 | 29.9 | 29.3 | 29.7 | 30.3 | 31.0 | 33.9 | 35.2 | 35.8 | 33.8 | 31.3 |
| Average temperature (°C) | 24.1 | 24.3 | 25.7 | 25.4 | 25.9 | 26.0 | 26.2 | 27.5 | 28.5 | 28.8 | 27.7 | 26.4 |
| Average night temperature (°C) | 22.1 | 22.6 | 23.3 | 23.1 | 23.5 | 23.3 | 23.1 | 23.3 | 23.8 | 24.1 | 24.0 | 23.6 |
| Absolute minimum temperature (°C) | 21.1 | 21.5 | 22.0 | 22.3 | 22.6 | 22.4 | 22.2 | 21.5 | 22.0 | 21.9 | 22.8 | 22.7 |
| 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 | 12.3 | 12.2 | 12.1 | 12.0 | 11.9 | 11.9 |
| 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) | 6.0 | 5.3 | 9.2 | 6.9 | 7.0 | 8.9 | 9.8 | 10.9 | 11.0 | 11.1 | 10.4 | 9.6 |
| Precipitation (mm) | 533 | 614 | 204 | 431 | 534 | 361 | 225 | 61 | 15 | 41 | 107 | 226 |
| Sunny days | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 6 | 11 | 7 | 2 | 0 |
| Rainy days | 29 | 28 | 29 | 30 | 31 | 30 | 31 | 25 | 19 | 24 | 28 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nouvelle Alliance is at