A southwesterly, strong and mostly variable flow prevails over the whole area.
For Penthièvre :
Warning strong breeze offshore.
We are 85% sure of the situation, because the atmosphere might be less unstable and showers more frequent than forecast.
In the evening, good clear periods but cloud building.
Chance of light rain. WSW wind force 4. Gusts reaching 23 knots in the evening. Moderate sea. Low, fairly long swell from SW. Visibility reduced by mist.