An easterly, strong and mostly variable flow prevails over the whole area.
For Penthièvre :
Warning moderate gale offshore.
The reliability of the situation is assessed at 95%.
Fair weather with mostly clear skies. In the evening, very cloudy.
Possibility of showers ENE force 4 becoming force 5 in the middle of the day then E. Gusts reaching 27 knots in the evening. Slight sea. Low, fairly long swell from WSW. Excellent visibility.