A northerly, weak and variable flow prevails over the South and the East of the basin. Over the North-West, it is westerly, moderate and variable.
For Piriac-sur-Mer :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sunny despite some cloudy spells but no rain. In the evening, clear skies.
N force 3 turning W force 4 in the middle of the day then N. Gusts reaching 22 knots in the evening. Smooth sea becoming smooth to slight in the middle of the day. Low, short swell from W. Excellent visibility.