For Trestraou :
Warning strong breeze.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Very cloudy skies to overcast. Light showers progressively becoming less frequent. In the evening, good clear periods but lots of cloud, too.
Possibility of showers W force 5 in the middle of the day becoming force 6 in the evening. Gusts reaching 42 knots in the evening. Slight sea becoming moderate in the evening. Low, fairly long swell from NW. Good visibility becoming excellent in the evening.