A northeasterly, weak and particularly variable flow prevails over the whole area.
For Trevou-Treguignec :
No gale warning.
For the night from Friday to Saturday NNE force 1 in the early part of the night turning ENE. Gusts reaching 13 knots in the early part of the night.
Smooth to slight sea. Low, short swell from WNW. Good visibility becoming poor in the middle of the night then poor. Daytime of Saturday 22 august : The unstable weather will die away during the day.
Good clear periods alternating with cloudy spells, sometimes dense. Some light showers in the morning, possibility of a few spots in the afternoon. In the evening, cloudy spells, sometimes dense.
Possibility of showers ENE force 1 in the morning freshening NNE force 3 in the middle of the day. Gusts reaching 16 knots in the evening. Smooth to slight sea. Low, short swell from WNW. Poor visibility becoming excellent in the middle of the day then good.