Wind — 2026
| Month | Kaag en Braassem | Alphen aan den Rijn | Difference |
|---|---|---|---|
| Jan | – | 13.5 km/h | – |
| Feb | – | 14.9 km/h | – |
| Mar | 22.7 km/h | 12.4 km/h | +10.3 |
| Apr | 17.4 km/h | 16.8 km/h | +0.6 |
| May | 14.6 km/h | 12.2 km/h | +2.4 |
| Jun | 16.3 km/h | 13.8 km/h | +2.5 |
| Jul | 16.2 km/h | 13.4 km/h | +2.8 |
| Aug |
| 14.9 km/h |
| 12.6 km/h |
| +2.3 |
| Sep | 17 km/h | 13.4 km/h | +3.6 |
| Oct | 19.1 km/h | 15.7 km/h | +3.4 |
| Nov | – | – | – |
| Dec | – | – | – |