Average annual temperature is 11.9 °C
Absolute maximum temperature: 31.2 °C
Absolute minimum temperature: -5.6 °C
Number of sunny days: 119 days
Number of rainy days: 246 days
Look at detailed online map of Grand Marais
* Weather data for Grand Marais Belgium is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 14.8 | 11.7 | 16.9 | 16.7 | 23.3 | 29.9 | 30.1 | 27.5 | 31.2 | 24.5 | 15.0 | 12.7 |
| Average daytime temperature (°C) | 7.3 | 8.5 | 10.5 | 12.4 | 17.5 | 24.8 | 22.1 | 22.0 | 23.1 | 17.0 | 10.2 | 8.7 |
| Average temperature (°C) | 5.2 | 5.5 | 7.3 | 8.5 | 13.1 | 19.8 | 18.3 | 17.9 | 18.5 | 13.5 | 7.8 | 6.7 |
| Average night temperature (°C) | 2.8 | 2.3 | 3.8 | 4.4 | 8.3 | 14.0 | 14.1 | 13.8 | 14.1 | 10.2 | 5.5 | 4.5 |
| Absolute minimum temperature (°C) | -3.1 | -4.0 | -3.0 | -1.8 | 3.7 | 10.0 | 11.3 | 10.7 | 8.8 | 2.6 | -0.2 | -5.6 |
| 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 | 10.0 | 11.9 | 13.8 | 15.5 | 16.4 | 16.0 | 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) | 3.2 | 4.6 | 4.6 | 7.6 | 10.5 | 13.1 | 10.7 | 10.5 | 9.3 | 6.0 | 3.6 | 2.0 |
| Precipitation (mm) | 92 | 10 | 134 | 90 | 57 | 37 | 129 | 86 | 65 | 114 | 126 | 91 |
| Sunny days | 10 | 14 | 4 | 10 | 14 | 19 | 4 | 8 | 17 | 9 | 1 | 9 |
| Rainy days | 21 | 14 | 27 | 20 | 17 | 11 | 27 | 23 | 13 | 22 | 29 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Grand Marais during the most sunny months:
Months with the longest average daylight duration in Grand Marais:
The largest precipitation sum in Grand Marais is at