A southwesterly, very strong and variable flow prevails over the whole area.
For Vieux-Boucau :
No gale warning.
The reliability of the situation is assessed at 90%.
Cloudy spells, dense at times in the morning, hazy cloud giving way to brightening skies in the afternoon. No precipitation. In the evening, clear skies.
S force 3 turning SW in the middle of the day then SSE force 2. Gusts reaching 18 knots in the middle of the day. Moderate sea. Moderate, long swell from WNW. Excellent visibility becoming excellent in the middle of the day then good.