A northwesterly, strong and very variable flow prevails over the whole area.
For Saint-Valery-sur-Somme :
No gale warning.
We are 70% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies very cloudy to overcast in the morning, some sun but cloud building in the afternoon. Light showers progressively dying out in the morning, no precipitation in the afternoon. In the evening, very cloudy skies becoming totally overcast.
Chance of light rain. SW force 3 in the morning temporarily W force 4 in the middle of the day. Gusts reaching 20 knots in the middle of the day. Smooth sea becoming smooth to slight in the middle of the day then slight. Low, short swell from W. Visibility reduced by mist becoming excellent in the middle of the day.