Wind — 2026
| Month | Stoumont | Spa | Difference |
|---|---|---|---|
| Jan | 14.2 km/h | 15.1 km/h | -0.9 |
| Feb | 16.2 km/h | 16.9 km/h | -0.7 |
| Mar | 8.1 km/h | 8.8 km/h | -0.7 |
| Apr | 6.7 km/h | 7.6 km/h | -0.9 |
| May | 11.4 km/h | 11.4 km/h | +0.0 |
| Jun | 12.6 km/h | 12.6 km/h | +0.0 |
| Jul | 11.7 km/h | 11.7 km/h | +0.0 |
| Aug | 12.7 km/h | 12.7 km/h | +0.0 |
| Sep | 10.1 km/h | 10.9 km/h | -0.8 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |