A southwesterly, moderate and very variable flow prevails over the North and the East of the basin. Over the South-West, it is northwesterly, weak and variable.
For Castricum aan Zee :
No gale warning.
The reliability of the situation is assessed at 90%.
Hazy cloud giving way to a brightening sky in the morning, sunny in the afternoon. No precipitation. In the evening, fair weather with mostly clear skies.
SSE force 3 turning SSW in the middle of the day then NW force 2. Gusts reaching 14 knots in the middle of the day. Smooth to slight sea. Low, short swell from W. Excellent visibility becoming excellent in the middle of the day then poor.