A southeasterly, moderate and mostly variable flow prevails over the East of the basin. Over the West, it is westerly and moderate.
For Tregastel :
No gale warning.
The reliability of the situation is assessed at 95%.
Very cloudy skies to overcast. No precipitation. In the evening, overcast skies.
Light rain in the early hours. E force 2 freshening force 4 in the middle of the day then becoming E. Gusts reaching 16 knots in the evening. Slight sea. Low, fairly long swell from WNW. Poor visibility becoming good in the middle of the day then excellent.