For Biarritz :
No gale warning.
For the night from Wednesday to Thursday SW force 1 in the early part of the night turning S. Gusts reaching 6 knots in the early part of the night.
Slight sea. Low, fairly long swell from NW. Excellent visibility becoming good in the middle of the night then good. Daytime of Thursday 24 september : The unstable weather will die away during the day.
Cloud and long sunny periods. Light showers progressively dying out in the morning, possibility of showers in the afternoon. In the evening, cloud and long sunny periods.
Possibility of showers SSE force 1 in the morning turning NW force 2 in the middle of the day. Gusts reaching 6 knots from the middle of the day. Slight sea. Low, fairly long swell from NW. Good visibility becoming excellent in the middle of the day then excellent.