A northeasterly, weak and particularly variable flow prevails over the South-East of the basin. Over the West and the North, it is westerly, moderate and very variable.
For Saint-Brevin-Les-Pins :
No gale warning.
The reliability of the situation is fairly good.
For the night from Thursday to Friday W force 2 in the early part of the night becoming WNW force 1.
Smooth sea becoming smooth to slight at the end of the night. Low, short swell from WSW. Visibility reduced by mist becoming reduced by fog in the middle of the night then reduced by fog. Daytime of Friday 4 september : Warning:reduced visibility early in the day.
Fog developing into low cloud during the morning, sunny in the afternoon. No precipitation. In the evening, light cloudy spells.
W force 2 in the morning becoming force 3 in the middle of the day. Gusts reaching 17 knots in the evening. Smooth to slight sea. Low, short swell from W. Visibility reduced by fog becoming excellent in the middle of the day then reduced by mist.