A northerly, strong and very variable flow prevails over the South and the West of the basin. Over the North-East, it is southeasterly, moderate and very variable.
For Piriac-sur-Mer :
No gale warning.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
Overcast in the morning, sunny, progressively clouding over in the afternoon. No precipitation. In the evening, cloudy and humid with a risk of fog.
No precipitation. SE force 4 in the morning turning SW force 3 in the evening. Gusts reaching 21 knots in the middle of the day. Slight sea. Low, short swell from SW. Excellent visibility becoming reduced by mist in the evening.