For Stêr-Ouen :
No gale warning.
We are 85% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will end.
Very cloudy in the morning, skies clearing in the afternoon. Light showers all day. In the evening, light cloudy spells.
SSW force 5 in the morning becoming S force 4 in the evening. Gusts reaching 30 knots in the middle of the day. Moderate sea becoming slight in the evening. Moderate, fairly long swell from SW then low in the middle of the day then from SW. Good visibility becoming excellent in the middle of the day.