A northwesterly and mostly variable flow prevails over the whole area.
For Porto :
No gale warning.
The reliability of the situation is assessed at 95%.
Light cloudy spells. In the evening, skies with few clouds.
WNW force 3 in the middle of the day weakening force 1 in the evening. Gusts reaching 13 knots in the middle of the day. Slight sea. Low, short swell from W. Excellent visibility becoming poor in the evening.