A northwesterly, moderate and variable flow prevails over the whole area.
For Saint-Brevin-Les-Pins :
No gale warning.
The reliability of the situation is poor.
For the night from Monday to Tuesday ENE force 1 in the early part of the night turning SE. Gusts reaching 6 knots at the end of the night.
Smooth to slight sea becoming smooth at the end of the night. Low, short swell from W. Excellent visibility becoming good in the middle of the night then good. Daytime of Tuesday 15 september : The weather will be good.
Sunny despite some cloud arriving in late morning. In the evening, relatively clear skies becoming changeable.
SW force 2 freshening W force 4 in the middle of the day then becoming NW. Gusts reaching 23 knots in the evening. Smooth sea becoming slight in the middle of the day. Low, short swell from W. Poor visibility becoming excellent in the middle of the day.