An easterly, moderate and variable flow prevails over the South of the basin. Over the North, it is northwesterly, moderate and variable.
For Katwijk aan Zee :
No gale warning.
The reliability of the situation is assessed at 90%.
Very cloudy skies with short clear spells. No precipitation. In the evening, very cloudy.
No precipitation. NE force 3 in the morning becoming ENE force 2 in the evening. Gusts reaching 14 knots until the middle of the day. Smooth sea becoming smooth to slight in the middle of the day. Low, short swell from N then from N in the middle of the day. Good visibility becoming excellent in the middle of the day then poor.