A northerly and very variable flow prevails over the South-West of the basin. Over the East, it is easterly, moderate and very variable. Over the North-West, it is southerly, moderate and variable.
For Piriac-sur-Mer :
No gale warning.
The reliability of the situation is assessed at 90%.
Warm sun all day. In the evening, clear skies.
E force 2 turning SW in the middle of the day then WNW. Gusts reaching 10 knots from the middle of the day. Smooth sea. Low, fairly long swell from WSW. Excellent visibility.