A northerly and mostly variable flow prevails over the whole area.
For Matosinhos :
Warning strong breeze offshore.
The reliability of the situation is very good.
Clear skies. In the evening, clear skies becoming somewhat cloudy.
NW wind force 3 from the middle of the day. Gusts reaching 16 knots in the middle of the day. Slight sea. Low, fairly long swell from WNW. Excellent visibility becoming poor in the evening.