A southwesterly, very strong and very variable flow prevails over the whole area.
For Plage de Port Biren :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Predominantly sunny in the morning, increasing sunny spells in the afternoon. No precipitation. In the evening, skies with few clouds covering over progressively.
No precipitation. S force 4 in the morning turning WSW in the evening. Gusts reaching 27 knots in the evening. Smooth to slight sea. Low, fairly long swell from WSW. Good visibility becoming excellent in the middle of the day.