A northwesterly and mostly variable flow prevails over the whole area.
For Berck sternes :
No gale warning.
The reliability of the situation is assessed at 95%.
Cloud and sun in the morning, overcast skies in the afternoon. No precipitation. In the evening, overcast skies with risk of thundery outbreaks.
Showers towards the end of the night. WSW force 4 becoming force 5 in the middle of the day then W. Gusts reaching 24 knots from the middle of the day. Smooth to slight sea becoming slight in the evening. Low, short swell from SW. Excellent visibility.