A southwesterly, moderate and very variable flow prevails over the whole area.
For Penthièvre :
No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Very cloudy skies to overcast. No precipitation. In the evening, very cloudy.
No precipitation. WSW wind force 3 from the middle of the day. Gusts reaching 15 knots in the middle of the day. Slight sea. Low, short swell from W. Good visibility becoming reduced by mist in the evening.