A northwesterly, weak and variable flow prevails over the East of the basin. Over the West, it is southerly, moderate and variable.
For Tregastel :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
In the evening, skies gradually hazing over.
No precipitation. NE wind force 2. Gusts reaching 8 knots in the evening. Smooth to slight sea. Low, fairly long swell from WNW. Good visibility.