A northeasterly, weak and very variable flow prevails over the South of the basin. Over the North, it is southwesterly, moderate and variable.
For Trevou-Treguignec :
No gale warning.
For the night from Wednesday to Thursday N force 2 in the early part of the night becoming force 1. Gusts reaching 12 knots in the early part of the night.
Slight sea. Low, short swell from WNW. Poor visibility becoming poor in the middle of the night. Daytime of Thursday 17 september : The sky will remain changeable.
Skies changeable, very cloudy for a time in the morning. Risk of showers in the morning, possibility of showers in the afternoon. In the evening, cloud and long sunny periods.
No precipitation. NNE force 2 becoming force 3 in the middle of the day then N. Gusts reaching 12 knots in the evening. Slight sea. Low, short swell from WNW. Poor visibility becoming excellent in the middle of the day then poor.