An easterly and mostly variable flow prevails over the East of the basin. Over the West, it is southerly, moderate and mostly variable.
For Tregastel :
No gale warning.
We are 80% sure of the situation, because the atmosphere might not be as stable as forecast.
Sunny, changeable at times in the afternoon. The risk of seeing rain will remain low. In the evening, cloud and long sunny periods.
No precipitation. E force 3 in the morning becoming ENE force 4 in the middle of the day. Gusts reaching 23 knots in the middle of the day. Slight sea. Low, fairly long swell from NW. Poor visibility becoming excellent in the middle of the day.