A westerly, moderate and mostly variable flow prevails over the whole area.
For Penthièvre :
No gale warning.
The reliability of the situation is assessed at 95%.
Very cloudy skies with short clear spells. No precipitation. In the evening, clear periods developing.
No precipitation. NW force 3 turning WSW force 4 in the middle of the day then W. Gusts reaching 22 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from WSW. Good visibility becoming excellent in the middle of the day then excellent.