A northeasterly and variable flow prevails over the South of the basin. Over the North, it is westerly, weak and very variable.
For Port de Tréboul :
No gale warning.
The reliability of the situation is assessed at 90%.
Fair weather with mostly clear skies. In the evening, skies with few clouds.
ESE force 2 turning N force 3 in the middle of the day then NW. Gusts reaching 15 knots in the evening. Smooth to slight sea. Low, fairly long swell from NW. Excellent visibility becoming excellent in the middle of the day.