Average annual temperature is 11.8 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: -5.5 °C
Number of sunny days: 120 days
Number of rainy days: 244 days
Number of snow days: 1 day
Look at detailed online map of Groot Rees
* Weather data for Groot Rees 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) | 15.7 | 12.1 | 17.2 | 17.1 | 23.8 | 30.3 | 32.0 | 27.5 | 30.6 | 24.8 | 14.7 | 11.9 |
| Average daytime temperature (°C) | 7.1 | 8.4 | 10.3 | 12.5 | 18.3 | 25.1 | 22.6 | 21.9 | 23.0 | 16.7 | 9.8 | 8.3 |
| Average temperature (°C) | 5.1 | 5.2 | 7.0 | 8.5 | 13.5 | 20.1 | 18.5 | 17.9 | 18.3 | 13.4 | 7.4 | 6.4 |
| Average night temperature (°C) | 2.9 | 2.0 | 3.6 | 4.2 | 8.4 | 14.4 | 14.0 | 13.8 | 13.5 | 10.3 | 4.9 | 4.2 |
| Absolute minimum temperature (°C) | -4.3 | -4.0 | -3.4 | -1.7 | 3.3 | 9.2 | 10.5 | 10.5 | 8.0 | 2.5 | -3.1 | -5.5 |
| 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) | 8.5 | 10.0 | 11.9 | 13.9 | 15.6 | 16.5 | 16.1 | 14.5 | 12.6 | 10.7 | 8.9 | 8.0 |
| Daylight minimum duration (h) | 7.0 | 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) | 3.0 | 4.0 | 5.1 | 7.8 | 11.1 | 12.9 | 11.0 | 10.4 | 9.1 | 5.9 | 3.5 | 2.2 |
| Precipitation (mm) | 107 | 19 | 129 | 85 | 61 | 34 | 96 | 80 | 59 | 132 | 132 | 111 |
| Sunny days | 8 | 13 | 4 | 8 | 15 | 21 | 6 | 9 | 17 | 9 | 2 | 8 |
| Rainy days | 23 | 15 | 27 | 22 | 16 | 9 | 25 | 22 | 13 | 22 | 28 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Groot Rees during the most sunny months:
Months with the longest average daylight duration in Groot Rees:
The largest precipitation sum in Groot Rees is at