For Trestraou :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Very cloudy skies with short clear spells. Showers will become less frequent from the morning. In the evening, good clear periods but lots of cloud, too.
Chance of light rain. SW force 3 in the morning turning W in the evening. Gusts reaching 18 knots in the morning. Rough sea. Moderate, long swell from WNW. Poor visibility becoming excellent in the middle of the day then poor.