For Trestraou :
No gale warning.
We are 90% sure of the situation, because flows might be far more disturbed than forecast.
Overcast with reduced visibility in the morning, increasing sunny spells in the afternoon. The risk of seeing rain will remain low. In the evening, cloud and long sunny periods.
No precipitation. WNW force 2 in the morning becoming NW force 3 in the middle of the day. Gusts reaching 16 knots in the evening. Slight sea. Low, fairly long swell from NW. Visibility reduced by fog becoming good in the middle of the day then excellent.