High 1029 hPa centered off Breton Cape moving at 8 knots to the North to be centered on the South of the Irish Sea.
For Biarritz :
No gale warning.
For the night from Monday to Tuesday SSW force 1 in the early part of the night temporarily force 2.
Slight sea temporarily moderate in the middle of the night. Low, fairly long swell from NW temporarily moderate, long swell in the middle of the night. Excellent visibility. Daytime of Tuesday 22 september : The weather will be good.
Fair weather with mostly clear skies. In the evening, skies with few clouds.
SSW force 1 turning NW force 2 in the middle of the day then W. Gusts reaching 7 knots in the middle of the day. Slight sea. Low, long swell from NW. Excellent visibility.