A northeasterly, strong and very variable flow prevails over the North of the basin. Over the South-East, it is southerly, moderate and very variable. Over the South-West, it is northwesterly, moderate and very variable.
For Portonovo :
No gale warning.
The reliability of the situation is assessed at 75%.
Very cloudy skies to overcast. Showers all day. In the evening, overcast skies.
Showers. NNE force 3 in the morning becoming NE force 4 in the evening. Gusts reaching 26 knots in the middle of the day. Slight sea. Low, short swell from NNE. Excellent visibility.