A westerly, moderate and variable flow prevails over the whole area.
For Saint-Brevin-Les-Pins :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
For the night from Monday to Tuesday NNW force 3 becoming force 2 in the middle of the night then NW. Gusts reaching 12 knots in the early part of the night.
Smooth to slight sea becoming smooth in the middle of the night. Low, short swell from WSW. Excellent visibility becoming good at the end of the night. Daytime of Tuesday 18 august : The sky will remain changeable.
Sun but cloud increasing in the morning, skies clearing but remaining hazy in the afternoon. No precipitation. In the evening, hazy cloud giving way to increasingly brighter skies.
No precipitation. WNW force 3 becoming W force 4 in the middle of the day then WNW. Gusts reaching 20 knots from the middle of the day. Smooth sea becoming smooth to slight in the middle of the day. Low, short swell from SW. Good visibility becoming excellent in the middle of the day.