A northeasterly and very variable flow prevails over the South of the basin. Over the North, it is northwesterly, moderate and very variable.
For Saint-Brevin-Les-Pins :
No gale warning.
The reliability of the situation is fairly good.
For the night from Monday to Tuesday NNE force 3 in the early part of the night becoming NE force 2. Gusts reaching 16 knots in the early part of the night.
Smooth to slight sea. Low, short swell from WSW. Excellent visibility becoming poor in the middle of the night then poor. Daytime of Tuesday 12 may : The largely blue sky won.t last.
Sunny becoming changeable in the afternoon. No precipitation. In the evening, good clear periods but lots of cloud, too.
No precipitation. NE force 2 in the morning turning NW in the evening. Gusts reaching 12 knots in the evening. Smooth to slight sea becoming smooth in the middle of the day. Low, short swell from WSW. Poor visibility becoming excellent in the middle of the day then excellent.