A southeasterly and variable flow prevails over the North-West of the basin. Over the South-West, it is southwesterly, moderate and very variable. Over the East, it is northwesterly, moderate and variable.
For Katwijk aan Zee :
No gale warning.
The reliability of the situation is assessed at 90%.
Changeable skies becoming less cloudy. No precipitation. In the evening, skies gradually hazing over.
No precipitation. NW wind force 3 from the middle of the day. Gusts reaching 15 knots. Smooth to slight sea. Low, short swell from WNW. Excellent visibility becoming excellent in the evening.