A northeasterly and very variable flow prevails over the South and the East of the basin. Over the North-West, it is southwesterly, weak and particularly variable.
For Saint-Brevin-Les-Pins :
No gale warning.
The reliability of the situation is poor.
For the night from Tuesday to Wednesday ENE wind force 3 continuing all night. Gusts reaching 14 knots in the early part of the night.
Smooth to slight sea. Low, fairly long swell from W. Excellent visibility becoming good at the end of the night. Daytime of Wednesday 23 september : The weather will be good.
Sunny despite some cloudy spells but no rain. In the evening, relatively clear skies becoming changeable.
ENE force 3 in the morning turning NNE force 2 in the evening. Gusts reaching 15 knots in the morning. Smooth to slight sea. Low, long swell from W. Good visibility becoming excellent in the middle of the day.