Average annual temperature is 14.5 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: -5.6 °C
Number of sunny days: 229 days
Number of rainy days: 135 days
Number of snow days: 1 day
Look at detailed online map of Grand Saint-Jean
* Weather data for Grand Saint-Jean 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) | 16.1 | 16.8 | 20.3 | 24.5 | 27.1 | 34.4 | 36.4 | 38.5 | 34.3 | 28.9 | 20.3 | 15.2 |
| Average daytime temperature (°C) | 10.3 | 12.5 | 16.2 | 19.7 | 22.5 | 27.0 | 31.7 | 30.6 | 27.5 | 22.6 | 13.8 | 11.3 |
| Average temperature (°C) | 4.7 | 5.6 | 9.9 | 13.2 | 16.8 | 21.4 | 25.2 | 24.0 | 20.7 | 16.9 | 8.8 | 6.0 |
| Average night temperature (°C) | 1.0 | 0.3 | 4.3 | 7.2 | 11.5 | 16.0 | 18.6 | 17.4 | 14.5 | 11.9 | 4.3 | 1.3 |
| Absolute minimum temperature (°C) | -5.5 | -5.6 | -2.1 | 1.2 | 7.0 | 12.6 | 14.9 | 11.9 | 8.0 | 7.4 | -3.3 | -5.4 |
| 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 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.4 | 15.1 | 13.9 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 6.9 | 7.8 | 9.8 | 11.3 | 11.0 | 12.3 | 13.6 | 12.1 | 10.6 | 8.6 | 6.5 | 6.1 |
| Precipitation (mm) | 19 | 26 | 26 | 34 | 103 | 105 | 5 | 42 | 48 | 53 | 54 | 54 |
| Sunny days | 21 | 19 | 18 | 14 | 12 | 13 | 26 | 27 | 21 | 19 | 17 | 22 |
| Rainy days | 9 | 9 | 13 | 16 | 19 | 17 | 5 | 4 | 9 | 12 | 13 | 9 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grand Saint-Jean during the most sunny months:
Months with the longest average daylight duration in Grand Saint-Jean:
The largest precipitation sum in Grand Saint-Jean is at