A northerly and mostly variable flow prevails over the whole area.
For Plage d"Hendaye :
No gale warning.
For the night from Wednesday to Thursday WNW wind force 2 continuing all night. Gusts reaching 9 knots in the middle of the night.
Moderate sea. Moderate, fairly long swell from NW. Good visibility becoming good in the middle of the night then good. Daytime of Thursday 20 august : The atmosphere will remain unstable.
Very cloudy. But clear spells will become more and more widespread. Light showers all day. In the evening, cloudy spells, sometimes dense.
Light showers. WNW force 2 becoming NW force 3 in the middle of the day then NNW. Moderate sea becoming slight in the evening. Moderate, fairly long swell from NW then low, short swell in the evening. Good visibility becoming good in the middle of the day then excellent.