A southwesterly, moderate and mostly variable flow prevails over the North-East of the basin. Over the South and the West, it is northwesterly, moderate and mostly variable.
For Piriac-sur-Mer :
Warning strong breeze offshore.
We are 90% sure of the situation, because the atmosphere might not be as stable as forecast.
Very cloudy skies to overcast. Light rain gradually becoming less frequent. In the evening, lots of good clear periods.
No precipitation. W force 4 in the middle of the day becoming WNW force 5 in the evening. Gusts reaching 25 knots in the evening. Slight sea. Low, fairly long swell from SW. Excellent visibility.