A northwesterly, strong and mostly variable flow prevails over the whole area.
For Tréguier :
No gale warning.
The reliability of the situation is assessed at 90%.
Overcast with reduced visibility in the morning, very cloudy in the afternoon. No precipitation. In the evening, relatively clear skies becoming changeable.
W force 3 becoming WNW force 4 in the middle of the day then W. Gusts reaching 24 knots in the evening. Smooth to slight sea becoming slight in the middle of the day. Low, fairly long swell from WNW. Visibility reduced by mist becoming excellent in the middle of the day.