For Île de Sein :
Warning moderate gale.
The reliability of the situation is assessed at 85%.
Skies changeable to very cloudy. Some light showers in the morning, possibility of a few spots in the afternoon. In the evening, cloudy spells, sometimes dense.
Chance of light rain. WNW wind force 7 continuing all day. Gusts reaching 45 knots in the middle of the day. Rough to very rough sea. Low, fairly long swell from W then moderate in the middle of the day then from WNW. Excellent visibility.