A northeasterly and variable flow prevails over the South of the basin. Over the North, it is westerly, weak and very variable.
For Ile de Batz :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fog developing into low cloud during the morning, predominantly sunny in the afternoon. No precipitation. In the evening, light cloudy spells.
NNW force 3 in the morning turning NE in the evening. Gusts reaching 13 knots until the middle of the day. Slight sea. Low, fairly long swell from W. Visibility reduced by fog becoming good in the middle of the day then poor.