For Penn al Lann :
Warning strong breeze.
We are 85% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will begin.
Overcast skies. Risk of some spots of rain in the morning, light rain followed by showers in the afternoon. In the evening, very cloudy skies to overcast.
Drizzle followed by showers. S force 5 becoming force 6 in the middle of the day then SW. Gusts reaching 39 knots in the evening. Slight sea. Low, fairly long swell from NW. Good visibility becoming excellent in the middle of the day.