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.
Cloud and long sunny periods. No precipitation. In the evening, fair weather with mostly clear skies.
NW force 2 freshening W force 4 in the middle of the day then NNW force 3. Gusts reaching 19 knots in the evening. Slight sea. Low, long swell from W. Visibility reduced by mist becoming excellent in the middle of the day.