A westerly, strong and very variable flow prevails over the whole area.
For Saint-Brevin-Les-Pins :
Warning strong breeze offshore.
The reliability of the situation is poor.
For the night from Tuesday to Wednesday SSW force 2 in the early part of the night becoming S force 3. Gusts reaching 18 knots at the end of the night.
Smooth to slight sea becoming slight at the end of the night. Low, fairly long swell from W. Good visibility becoming good in the middle of the night then excellent. Daytime of Wednesday 21 october : The atmosphere will remain unstable.
Very cloudy. But clear spells will become more and more widespread. Showers will gradually become less frequent during the afternoon. In the evening, cloudy spells, sometimes dense.
Possibility of showers SW force 4 turning WNW force 5 in the middle of the day then W force 4. Gusts reaching 30 knots in the middle of the day. Slight sea becoming moderate in the middle of the day. Low, short swell from SW. Good visibility becoming excellent in the middle of the day.