A westerly and very variable flow prevails over the whole area.
For Plage Centrale de Biscarrosse :
No gale warning.
For the night from Monday to Tuesday NNW force 3 in the early part of the night becoming force 2. Gusts reaching 13 knots in the early part of the night.
Moderate sea. Moderate, fairly long swell from WNW. Excellent visibility becoming excellent in the middle of the night then excellent. Daytime of Tuesday 18 august : The atmosphere will remain unstable.
Good clear periods alternating with cloudy spells, sometimes dense. Light showers all day. In the evening, cloudy spells, sometimes dense.
Possibility of showers NNW force 2 becoming NW force 3 in the middle of the day then NNW. Gusts reaching 14 knots in the evening. Moderate sea becoming slight in the evening. Moderate, fairly long swell from WNW then low in the middle of the day then from WNW. Good visibility becoming excellent in the middle of the day.