Wind — 2026
| Month | Bertogne | Bastogne | Difference |
|---|---|---|---|
| Jan | 15.1 km/h | 15.3 km/h | -0.2 |
| Feb | 16.9 km/h | 17.2 km/h | -0.3 |
| Mar | 8 km/h | 10.8 km/h | -2.8 |
| Apr | 9.1 km/h | 14.4 km/h | -5.3 |
| May | 11.1 km/h | 11.1 km/h | +0.0 |
| Jun | 12.3 km/h | 12.3 km/h | +0.0 |
| Jul | 11.1 km/h | 12.2 km/h | -1.1 |
| Aug | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |