High 1020 hPa centered on the North of the Bay of Biscay remaining almost stationary.
For Grande Plage du Sillon :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sunny after slow dispersal of fog in the morning, sunny in the afternoon. No precipitation. In the evening, clear skies.
SW force 3 in the morning turning W in the evening. Gusts reaching 15 knots in the middle of the day. Smooth sea. Low, short swell from S. Visibility reduced by fog becoming excellent in the middle of the day then good.