A southwesterly and very variable flow prevails over the whole area.
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.
Lots of cloud dispersing during the morning, sunny in the afternoon. No precipitation. In the evening, skies with few clouds.
WNW force 2 becoming W force 3 in the middle of the day then WNW. Gusts reaching 13 knots from the middle of the day. Smooth to slight sea. Low, fairly long swell from W. Poor visibility becoming excellent in the middle of the day then good.