A northerly and very variable flow prevails over the whole area.
For Saint-Brevin-Les-Pins :
No gale warning.
The reliability of the situation is poor.
For the night from Wednesday to Thursday WNW force 3 in the early part of the night becoming force 2. Gusts reaching 17 knots in the early part of the night.
Slight sea. Low, short swell from W. Excellent visibility becoming poor in the middle of the night then poor. Daytime of Thursday 20 august : The largely blue sky won.t last.
Sunny, changeable at times in the afternoon. Possibility of showers late in the morning, possibility of showers in the afternoon. In the evening, skies with few clouds.
W force 3 in the morning becoming force 4 in the middle of the day. Gusts reaching 23 knots in the evening. Slight sea. Low, short swell from W. Poor visibility becoming excellent in the middle of the day.