A southerly 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 SSE wind force 2 continuing all night. Gusts reaching 8 knots from the middle of the night.
Smooth sea becoming smooth to slight at the end of the night. Low, fairly long swell from W. Good visibility becoming poor in the middle of the night then poor. Daytime of Saturday 23 may : The weather will be good.
Skies progressively hazing over in the morning, sunny in the afternoon. No precipitation. In the evening, clear skies.
SE force 2 turning NW in the middle of the day then becoming force 1. Gusts reaching 10 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from W. Poor visibility becoming excellent in the middle of the day then excellent.