A northerly and variable flow prevails over the South and the East of the basin. Over the North-West, it is southwesterly, strong and very variable.
For Penthièvre :
No gale warning.
The reliability of the situation is assessed at 70%.
Very cloudy skies with short clear spells. Risk of some spots of rain in the morning, light showers in the afternoon. In the evening, lots of good clear periods.
Chance of light rain. WSW force 4 in the morning turning WNW in the evening. Gusts reaching 25 knots in the middle of the day. Slight sea. Low, fairly long swell from W. Excellent visibility.