A westerly, moderate and very variable flow prevails over the whole area.
For Pornichet :
No gale warning.
The reliability of the situation is assessed at 80%.
Very cloudy. No precipitation. In the evening, clear periods developing.
No precipitation. WNW wind force 3 from the middle of the day. Gusts reaching 17 knots in the evening. Smooth to slight sea. Low, short swell from WSW. Excellent visibility.