A northerly, strong and mostly variable flow prevails over the West of the basin. Over the East, it is easterly, moderate and mostly variable.
For Saint-Brevin-Les-Pins :
No gale warning.
The reliability of the situation is assessed at 90%.
For the night from Monday to Tuesday ESE wind force 3 continuing all night. Gusts reaching 16 knots in the early part of the night.
Smooth to slight sea. Low, fairly long swell from WSW. Excellent visibility becoming excellent in the middle of the night then reduced by mist. Daytime of Tuesday 23 december : Warning:reduced visibility early in the day.
Sunny spells with possibility of mist forming in the morning, good clear periods with lots of cloud in the afternoon. No precipitation. In the evening, very cloudy.
No precipitation. E force 3 turning NE in the middle of the day then NNE force 4. Gusts reaching 21 knots in the evening. Smooth to slight sea. Low, fairly long swell from WSW. Visibility reduced by mist becoming good in the middle of the day then good.