Average annual temperature is 12.7 °C
Absolute maximum temperature: 40.3 °C
Absolute minimum temperature: -10.4 °C
Number of sunny days: 154 days
Number of rainy days: 200 days
Number of snow days: 11 days
Look at detailed online map of Le Grand Mont
* Weather data for Le Grand Mont 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) | 14.7 | 17.1 | 23.0 | 25.7 | 25.8 | 30.5 | 37.3 | 40.3 | 35.2 | 31.3 | 20.2 | 15.1 |
| Average daytime temperature (°C) | 6.7 | 9.4 | 13.3 | 14.8 | 19.0 | 25.9 | 28.6 | 28.8 | 27.3 | 21.7 | 11.7 | 9.4 |
| Average temperature (°C) | 3.9 | 3.5 | 8.2 | 9.6 | 14.1 | 19.8 | 22.2 | 22.3 | 20.2 | 15.5 | 8.0 | 4.9 |
| Average night temperature (°C) | 0.7 | -1.2 | 3.3 | 4.5 | 9.4 | 13.5 | 15.6 | 16.1 | 13.6 | 9.9 | 4.2 | 1.0 |
| Absolute minimum temperature (°C) | -4.9 | -10.4 | -4.8 | -2.3 | 5.4 | 10.9 | 10.7 | 10.1 | 5.6 | 5.6 | -3.7 | -6.3 |
| 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) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.8 |
| 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) | 3.3 | 7.0 | 8.9 | 8.5 | 9.3 | 12.3 | 13.2 | 11.2 | 10.5 | 7.6 | 5.0 | 4.7 |
| Precipitation (mm) | 68 | 20 | 61 | 48 | 104 | 80 | 28 | 32 | 34 | 111 | 79 | 63 |
| Sunny days | 6 | 18 | 11 | 10 | 6 | 12 | 17 | 16 | 22 | 18 | 4 | 14 |
| Rainy days | 18 | 7 | 19 | 20 | 25 | 18 | 14 | 15 | 8 | 13 | 26 | 17 |
| Snow days | 7 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Le Grand Mont during the most sunny months:
Months with the longest average daylight duration in Le Grand Mont:
The largest precipitation sum in Le Grand Mont is at