Average annual temperature is 11.4 °C
Absolute maximum temperature: 30.1 °C
Absolute minimum temperature: -6.1 °C
Number of sunny days: 116 days
Number of rainy days: 249 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) | 14.0 | 12.7 | 15.8 | 16.5 | 23.1 | 28.9 | 29.7 | 27.9 | 30.1 | 25.0 | 14.4 | 11.6 |
| Average daytime temperature (°C) | 6.4 | 8.1 | 10.1 | 11.9 | 17.4 | 24.2 | 21.8 | 21.6 | 22.8 | 16.7 | 9.4 | 7.9 |
| Average temperature (°C) | 4.4 | 4.8 | 6.8 | 8.0 | 12.8 | 19.4 | 17.9 | 17.6 | 18.2 | 13.2 | 7.2 | 6.1 |
| Average night temperature (°C) | 2.2 | 1.7 | 3.3 | 3.7 | 7.7 | 13.5 | 13.7 | 13.2 | 13.7 | 9.9 | 5.1 | 4.0 |
| Absolute minimum temperature (°C) | -4.2 | -4.4 | -4.1 | -2.3 | 2.9 | 9.1 | 10.7 | 10.1 | 8.0 | 1.7 | -1.7 | -6.1 |
| 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) | 2.5 | 4.6 | 5.0 | 6.8 | 10.5 | 13.0 | 10.9 | 9.8 | 9.5 | 6.2 | 2.8 | 2.0 |
| Precipitation (mm) | 87 | 15 | 149 | 78 | 56 | 47 | 119 | 95 | 71 | 119 | 106 | 91 |
| Sunny days | 9 | 14 | 5 | 8 | 14 | 22 | 5 | 6 | 17 | 9 | 1 | 6 |
| Rainy days | 22 | 14 | 26 | 22 | 17 | 8 | 26 | 25 | 13 | 22 | 29 | 25 |
| 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