A southerly, strong and very variable flow prevails over the whole area.
For Penthièvre :
No gale warning.
We are 90% 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, clear skies.
SSE force 4 in the morning turning E force 3 in the evening. Gusts reaching 23 knots in the morning. Slight sea. Low, long swell from W. Excellent visibility becoming good in the evening.