An easterly and mostly variable flow prevails over the whole area.
For Cayeux-sur-Mer :
No gale warning.
The reliability of the situation is assessed at 90%.
Clear skies but light mist in the morning, sunny in the afternoon. In the evening, light cloudy spells.
NE force 3 turning N in the middle of the day then NNE force 4. Gusts reaching 19 knots in the evening. Smooth sea becoming smooth to slight in the middle of the day then slight. Low, short swell from WNW. Visibility reduced by mist becoming excellent in the middle of the day.