An easterly and very variable flow prevails over the South-East of the basin. Over the West and the North, it is southerly, moderate and very variable.
For Saint-Brevin-Les-Pins :
No gale warning.
The reliability of the situation is poor.
For the night from Wednesday to Thursday WNW force 1 turning NNE in the middle of the night then ENE force 2. Gusts reaching 6 knots at the end of the night.
Slight sea. Low, fairly long swell from W. Visibility reduced by mist becoming reduced by fog in the middle of the night then reduced by fog. Daytime of Thursday 21 may : Warning:reduced visibility early in the day.
Sunny spells with possibility of mist forming in the morning, sunny becoming changeable in the afternoon. No precipitation. In the evening, cloudy spells, sometimes dense.
No precipitation. E wind force 2 continuing all day. Gusts reaching 10 knots until the middle of the day. Slight sea becoming smooth to slight in the evening. Low, fairly long swell from W. Visibility reduced by fog becoming excellent in the middle of the day then good.