A southerly, moderate and very variable flow prevails over the whole area.
For Berck sternes :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fair weather with mostly clear skies. In the evening, clear spells, risk of mist forming.
No precipitation. S force 3 in the middle of the day weakening force 1 in the evening. Gusts reaching 12 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from W. Excellent visibility becoming reduced by mist in the evening.