A northerly, moderate and variable flow prevails over the whole area.
For Viana do Castelo :
Warning moderate gale offshore.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
For the night from Friday to Saturday N force 2 in the early part of the night becoming force 1. Gusts reaching 11 knots in the early part of the night.
Slight sea. Low, short swell from WNW. Excellent visibility becoming good in the middle of the night then good. Daytime of Saturday 15 august : The weather will be good.
Clouds dispersing during the morning, sunny despite some high cloud in the afternoon. No precipitation. In the evening, hazy cloud giving way to increasingly brighter skies.
No precipitation. NNW force 2 freshening force 4 in the middle of the day then becoming NNE. Gusts reaching 31 knots in the middle of the day. Slight sea becoming moderate in the evening. Low, fairly long swell from WNW. Good visibility becoming excellent in the middle of the day.