Wind — 2026
| Month | Katwijk | Wassenaar | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 24.8 km/h | 23.3 km/h | +1.5 |
| Apr | 18.4 km/h | 16.8 km/h | +1.6 |
| May | 16.1 km/h | 18.9 km/h | -2.8 |
| Jun | 18.1 km/h | 21 km/h | -2.9 |
| Jul | 17.8 km/h | 20.4 km/h | -2.6 |
| Aug |
| 16.5 km/h |
| 19.3 km/h |
| -2.8 |
| Sep | 19.1 km/h | 19.9 km/h | -0.8 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |