A westerly and particularly 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 Friday to Saturday SSE force 1 becoming S force 2 in the middle of the night then SSW. Gusts reaching 12 knots at the end of the night.
Smooth to slight sea. Low, short swell from W. Good visibility becoming good in the middle of the night then good. Daytime of Saturday 20 september : The sky will remain changeable.
Skies changeable becoming very cloudy in the afternoon. Possibility of showers late in the morning, showers late in the day. In the evening, cloudy spells, sometimes dense.
Light showers progressively becoming less frequent. SSW force 3 becoming SW force 4 in the middle of the day then WSW. Gusts reaching 20 knots in the middle of the day. Smooth to slight sea. Low, short swell from W. Poor visibility becoming excellent in the middle of the day.