A northwesterly, moderate and very variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, strong and very variable.
For Katwijk :
No gale warning.
The reliability of the situation is assessed at 85%.
Overcast with reduced visibility in the morning, very cloudy skies to overcast in the afternoon. Drizzle beginning to fall in late morning, possibility of a few spots in the afternoon. In the evening, good clear periods but lots of cloud, too.
No precipitation. WSW force 4 in the morning turning NNW in the middle of the day. Gusts reaching 26 knots in the middle of the day. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from WNW. Visibility reduced by mist becoming excellent in the middle of the day.