A northwesterly, weak 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 Thursday to Friday NW wind force 2 continuing all night. Gusts reaching 15 knots at the end of the night.
Smooth to slight sea. Low, short swell from WNW. Good visibility becoming good in the middle of the night. Daytime of Friday 21 november : The unsettled weather will become more unpredictable in the second half of the day.
Skies changeable to very cloudy. Risk of showers in the morning, light showers in the afternoon. In the evening, cloudy spells, sometimes dense.
Light showers progressively becoming less frequent. WNW force 2 in the morning temporarily NW force 3 in the middle of the day. Gusts reaching 18 knots in the evening. Smooth to slight sea becoming slight in the evening. Low, short swell from W. Good visibility becoming excellent in the middle of the day then good.