A westerly and variable flow prevails over the whole area.
For Saint-Brevin-Les-Pins :
No gale warning.
For the night from Tuesday to Wednesday NNW force 3 in the early part of the night becoming force 2. Gusts reaching 17 knots in the early part of the night.
Smooth to slight sea. Low, short swell from W. Excellent visibility becoming excellent in the middle of the night then good. Daytime of Wednesday 19 august : The unsettled weather will become more unpredictable in the second half of the day.
Skies changeable to very cloudy. Light showers arriving in late morning, then dying out. In the evening, cloud and long sunny periods.
Chance of light rain. NNW force 2 freshening W force 4 in the middle of the day then becoming WNW. Gusts reaching 17 knots in the evening. Smooth to slight sea. Low, short swell from W. Good visibility becoming excellent in the middle of the day.