For Grosse Roche Beach :
No gale warning.
The reliability of the situation is very good.
Fair weather with mostly clear skies. In the evening, lots of good clear periods.
Chance of light rain. E force 2 turning WNW force 3 in the middle of the day then ENE. Gusts reaching 12 knots in the middle of the day. Smooth sea becoming smooth to slight in the evening. Low from E then from NW in the evening. Good visibility becoming excellent in the middle of the day.