A northerly 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 with plenty of cloud in the morning, cloud and sun in the afternoon. No precipitation. In the evening, relatively clear skies becoming changeable.
NNE force 1 in the morning freshening force 3 in the middle of the day. Gusts reaching 17 knots in the middle of the day. Smooth to slight sea. Low, short swell from NE. Good visibility becoming excellent in the middle of the day then reduced by mist.