A northwesterly and mostly variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, moderate and mostly variable.
For Plage de Porzic :
No gale warning.
The reliability of the situation is assessed at 95%.
Fair weather with mostly clear skies. In the evening, lots of good clear periods.
No precipitation. WNW force 3 becoming force 4 in the middle of the day then NW. Gusts reaching 21 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from SW. Excellent visibility becoming good in the evening.