A northeasterly, strong and variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, moderate and variable.
For Plage de Portrieux :
No gale warning.
The reliability of the situation is assessed at 80%.
Cloud and long sunny periods. No precipitation. In the evening, cloudy spells, sometimes dense.
Chance of light rain. NNE force 4 in the middle of the day becoming NE force 5 in the evening. Gusts reaching 26 knots in the evening. Slight sea. Low, short swell from NNW. Excellent visibility.