A northwesterly and very variable flow prevails over the whole area.
For Saint-Valery-sur-Somme :
No gale warning.
The reliability of the situation is assessed at 90%.
For the night from Friday to Saturday SSW force 1 in the early part of the night becoming S force 2. Gusts reaching 8 knots at the end of the night.
Smooth to slight sea. Low, short swell from W. Poor visibility becoming reduced by mist in the middle of the night. Daytime of Saturday 12 september : Warning:reduced visibility early in the day.
Cloudy with risk of fog in the morning, cloud and sun in the afternoon. No precipitation. In the evening, relatively clear skies becoming changeable.
SSW force 3 turning W in the middle of the day then WSW. Gusts reaching 16 knots in the middle of the day. Smooth to slight sea becoming slight in the evening. Low, short swell from W. Visibility reduced by mist becoming excellent in the middle of the day then good.