An easterly, weak and particularly variable flow prevails over the North of the basin. Over the South, it is northwesterly, weak and particularly variable.
For Plage d"Hendaye :
No gale warning.
For the night from Saturday to Sunday WSW force 1 in the early part of the night temporarily force 2. Gusts reaching 9 knots in the early part of the night.
Slight sea. Low, short swell from NW. Excellent visibility becoming good in the middle of the night then good. Daytime of Sunday 23 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.
Showers towards the end of the night. WSW force 1 turning NNW force 2 in the middle of the day then NW. Gusts reaching 10 knots in the evening. Slight sea. Low, fairly long swell from NW. Good visibility becoming good in the middle of the day then good.