A northerly, moderate and mostly variable flow prevails over the whole area.
For Porsay :
No gale warning.
The reliability of the situation is very good.
Good clear periods but lots of cloud, too. Risk of showers as night falls. In the evening, changeable skies becoming less cloudy.
No precipitation. NW force 2 in the middle of the day turning E force 1 in the evening. Gusts reaching 11 knots in the middle of the day. Smooth sea. Low, short swell from NE. Excellent visibility becoming good in the evening.