A southerly and particularly variable flow prevails over the whole area.
For Saint-Brevin-Les-Pins :
No gale warning.
For the night from Thursday to Friday ENE wind force 3 continuing all night. Gusts reaching 14 knots from the middle of the night.
Smooth to slight sea. Low, fairly long swell from W. Good visibility becoming poor in the middle of the night then poor. Daytime of Friday 22 may : The largely blue sky won.t last.
Sunny, changeable at times in the afternoon. No precipitation. In the evening, cloudy spells, sometimes dense.
No precipitation. E force 3 in the morning turning NE force 2 in the evening. Gusts reaching 15 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low, fairly long swell from W. Poor visibility becoming excellent in the middle of the day then good.