For Port de Rosmeur :
No gale warning.
For the night from Thursday to Friday NW force 3 becoming force 2 in the middle of the night then force 1. Gusts reaching 13 knots.
Smooth to slight sea becoming smooth at the end of the night. Low from N. Excellent visibility becoming good in the middle of the night then good. Daytime of Friday 21 august : The unsettled weather will become more unpredictable in the second half of the day.
Skies changeable to very cloudy. Risk of showers in the morning, light showers in the afternoon. In the evening, cloudy spells, sometimes dense.
Light showers progressively becoming less frequent. WNW force 2 becoming W force 3 in the middle of the day then WNW. Gusts reaching 17 knots in the evening. Smooth sea. Low from N. Good visibility becoming excellent in the middle of the day.