Wind — 2026
| Month | Harlingen | Súdwest-Fryslân | Difference |
|---|---|---|---|
| Jan | – | 20.5 km/h | – |
| Feb | – | 21 km/h | – |
| Mar | 33.8 km/h | 17.6 km/h | +16.2 |
| Apr | 28.2 km/h | 17.5 km/h | +10.7 |
| May | 20.9 km/h | 19.2 km/h | +1.7 |
| Jun | 24 km/h | 22.1 km/h | +1.9 |
| Jul | 24.2 km/h | 22.4 km/h | +1.8 |
| Aug |
| 21.7 km/h |
| 19.6 km/h |
| +2.1 |
| Sep | 25.9 km/h | 23 km/h | +2.9 |
| Oct | 29.8 km/h | 24.6 km/h | +5.2 |
| Nov | – | – | – |
| Dec | – | – | – |