A northerly flow prevails over the South and the East of the basin. Over the North-West, it is southwesterly, weak and mostly variable.
For Pornichet :
No gale warning.
The reliability of the situation is assessed at 90%.
Changeable skies clearing completely. No precipitation. In the evening, clear skies becoming somewhat cloudy.
WSW wind force 3 from the middle of the day. Gusts reaching 15 knots in the evening. Smooth to slight sea. Low, fairly long swell from WSW. Good visibility becoming excellent in the evening.