Wind — 2026
| Month | Gembloux | Walhain | Difference |
|---|---|---|---|
| Jan | 14.5 km/h | 15.1 km/h | -0.6 |
| Feb | 16.1 km/h | 16.4 km/h | -0.3 |
| Mar | 10.6 km/h | 12.3 km/h | -1.7 |
| Apr | 13.3 km/h | 11.8 km/h | +1.5 |
| May | 11.6 km/h | 11.6 km/h | +0.0 |
| Jun | 12.9 km/h | 12.9 km/h | +0.0 |
| Jul | 12.2 km/h | 12.3 km/h | -0.1 |
| Aug | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |