An easterly, very strong and mostly variable flow prevails over the South and the West of the basin. Over the North-East, it is northwesterly, very strong and variable.
For Penthièvre :
No gale warning.
The reliability of the situation is assessed at 90%.
Cloud and long sunny periods. No precipitation. In the evening, cloud and long sunny periods.
No precipitation. NW force 2 becoming force 3 in the middle of the day then N. Gusts reaching 14 knots from the middle of the day. Smooth to slight sea. Low, fairly long swell from WSW. Good visibility becoming excellent in the middle of the day then good.