An easterly, moderate and variable flow prevails over the whole area.
For Penthièvre :
Warning strong breeze offshore.
We are 70% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies very cloudy, risk of some thundery outbreaks. No precipitation in the morning, showers late in the day. In the evening, cloud and long sunny periods.
Light showers progressively becoming less frequent. ENE force 5 becoming E force 4 in the middle of the day then ENE force 3. Gusts reaching 27 knots in the morning. Smooth to slight sea. Low, fairly long swell from SW. Excellent visibility.