A northerly, weak and particularly variable flow prevails over the South and the East of the basin. Over the North-West, it is southwesterly, moderate and very variable.
For Saint-Brevin-Les-Pins :
No gale warning.
The reliability of the situation is fairly good.
For the night from Friday to Saturday ENE force 1 turning NNE in the middle of the night then NE force 2. Gusts reaching 13 knots at the end of the night.
Slight sea. Low, fairly long swell from WSW. Excellent visibility becoming excellent in the middle of the night then good. Daytime of Saturday 23 may : Improving during the day:the sky will clear.
Bright spells increasing during the morning, sunny in the afternoon. Risk of showers in the morning, no precipitation in the afternoon. In the evening, skies with few clouds.
NE force 2 turning NW in the middle of the day then N force 3. Gusts reaching 18 knots from the middle of the day. Slight sea. Low, fairly long swell from WSW. Poor visibility becoming excellent in the middle of the day.