A southwesterly, moderate and very variable flow prevails over the whole area.
For Pen Guen, Saint-Cast :
No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Very cloudy. But clear spells will become more and more widespread. The risk of seeing rain will remain low. In the evening, lots of good clear periods.
No precipitation. WNW force 4 becoming force 5 in the middle of the day then NW. Gusts reaching 27 knots in the evening. Slight sea. Low, short swell from WNW. Poor visibility becoming excellent in the middle of the day.