A southeasterly and very variable flow prevails over the whole area.
For Saint-Brevin-Les-Pins :
No gale warning.
For the night from Tuesday to Wednesday E wind force 3 continuing all night. Gusts reaching 18 knots in the early part of the night.
Smooth to slight sea. Low, fairly long swell from W. Excellent visibility. Daytime of Wednesday 21 october : The unsettled weather will become more unpredictable in the second half of the day.
Skies changeable to very cloudy. Some showers from late morning. In the evening, cloudy spells, sometimes dense.
No precipitation. E force 3 in the morning becoming force 2 in the evening. Gusts reaching 16 knots in the morning. Slight sea. Low, short swell from W. Good visibility becoming excellent in the middle of the day then excellent.