A southwesterly, moderate and very variable flow prevails over the whole area.
For Plage de Porz Donan :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Predominantly sunny in the morning, very cloudy in the afternoon. No precipitation. In the evening, very cloudy.
No precipitation. SW force 3 in the morning turning NNW force 2 in the evening. Gusts reaching 16 knots until the middle of the day. Smooth to slight sea. Low, fairly long swell from N. Poor visibility becoming excellent in the middle of the day then good.