Average annual temperature is 13.6 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -5.6 °C
Number of sunny days: 145 days
Number of rainy days: 219 days
Number of snow days: 1 day
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) | 17.3 | 17.0 | 21.0 | 22.2 | 27.5 | 32.1 | 32.6 | 34.4 | 33.9 | 29.6 | 17.9 | 15.0 |
| Average daytime temperature (°C) | 8.2 | 10.1 | 13.1 | 15.2 | 20.9 | 27.6 | 25.9 | 25.1 | 26.5 | 20.3 | 12.3 | 10.1 |
| Average temperature (°C) | 6.1 | 5.4 | 9.0 | 10.7 | 15.7 | 21.9 | 20.8 | 20.5 | 20.5 | 15.1 | 9.6 | 7.7 |
| Average night temperature (°C) | 3.6 | 1.8 | 4.9 | 6.2 | 10.5 | 15.6 | 15.6 | 15.9 | 15.0 | 10.6 | 6.7 | 5.4 |
| Absolute minimum temperature (°C) | -3.4 | -5.6 | -2.2 | -1.7 | 6.3 | 11.4 | 10.5 | 10.0 | 5.4 | 5.3 | -1.3 | -3.1 |
| 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) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.9 | 5.9 | 6.8 | 8.0 | 11.2 | 12.5 | 11.4 | 9.5 | 10.2 | 7.2 | 4.8 | 3.0 |
| Precipitation (mm) | 70 | 15 | 86 | 48 | 56 | 62 | 66 | 43 | 39 | 99 | 91 | 62 |
| Sunny days | 7 | 18 | 10 | 9 | 15 | 19 | 12 | 10 | 17 | 15 | 4 | 9 |
| Rainy days | 23 | 10 | 21 | 21 | 16 | 11 | 19 | 21 | 13 | 16 | 26 | 22 |
| Snow days | 1 | 0 | 0 | 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