Average annual temperature is 12.1 °C
Absolute maximum temperature: 32.2 °C
Absolute minimum temperature: -5.2 °C
Number of sunny days: 121 days
Number of rainy days: 243 days
Number of snow days: 1 day
Look at detailed online map of Le Grand Marais
* Weather data for Le Grand Marais 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) | 14.9 | 12.3 | 17.4 | 16.4 | 23.5 | 30.3 | 29.6 | 27.8 | 32.2 | 25.0 | 15.8 | 13.1 |
| Average daytime temperature (°C) | 8.0 | 9.2 | 11.1 | 12.7 | 17.8 | 24.7 | 22.5 | 22.3 | 23.7 | 17.6 | 11.0 | 9.4 |
| Average temperature (°C) | 5.6 | 5.8 | 7.7 | 8.6 | 13.0 | 19.4 | 18.5 | 18.1 | 18.9 | 13.9 | 8.4 | 7.2 |
| Average night temperature (°C) | 3.0 | 2.6 | 4.2 | 4.3 | 8.1 | 13.6 | 14.4 | 13.8 | 14.1 | 10.6 | 6.1 | 5.1 |
| Absolute minimum temperature (°C) | -3.6 | -4.3 | -2.6 | -1.6 | 3.2 | 9.9 | 11.2 | 10.1 | 9.7 | 3.8 | 0.4 | -5.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.6 | 10.1 | 11.9 | 13.8 | 15.5 | 16.4 | 15.9 | 14.5 | 12.6 | 10.7 | 9.0 | 8.1 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 7.0 |
| Sunshine mean duration (h) | 3.3 | 4.9 | 5.2 | 8.0 | 10.4 | 13.1 | 11.0 | 10.9 | 9.1 | 6.5 | 3.7 | 2.3 |
| Precipitation (mm) | 73 | 7 | 129 | 90 | 46 | 57 | 98 | 104 | 39 | 101 | 124 | 64 |
| Sunny days | 9 | 14 | 4 | 9 | 16 | 19 | 5 | 6 | 18 | 10 | 3 | 8 |
| Rainy days | 22 | 13 | 27 | 21 | 15 | 11 | 26 | 25 | 12 | 21 | 27 | 23 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Le Grand Marais during the most sunny months:
Months with the longest average daylight duration in Le Grand Marais:
The largest precipitation sum in Le Grand Marais is at