A northeasterly and mostly variable flow prevails over the whole area.
For Viana do Castelo :
Warning strong breeze offshore.
For the night from Tuesday to Wednesday NNE wind force 3 continuing all night. Gusts reaching 12 knots in the early part of the night.
Slight sea. Low, short swell from NW. Excellent visibility. Daytime of Wednesday 19 august : The weather will be good.
Sunny despite some cloudy spells but no rain. Risk of some spots of rain in the morning, no precipitation in the afternoon. In the evening, light cloudy spells.
NNE force 3 in the morning temporarily NW in the middle of the day. Gusts reaching 15 knots in the evening. Slight sea. Low, short swell from NW. Excellent visibility.