A northwesterly, weak and variable flow prevails over the whole area.
For Viana do Castelo :
No gale warning.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
For the night from Sunday to Monday NNW force 2 in the early part of the night turning NNE force 1. Gusts reaching 10 knots in the early part of the night.
Slight sea. Low, short swell from W. Good visibility becoming poor in the middle of the night then reduced by mist. Daytime of Monday 10 august : The weather will be good.
Changeable skies becoming fairly cloud-free in the morning, sunny in the afternoon. No precipitation. In the evening, skies with few clouds.
N force 2 in the morning freshening NW force 4 in the middle of the day. Gusts reaching 24 knots in the middle of the day. Slight sea. Low, short swell from W. Visibility reduced by mist becoming excellent in the middle of the day then poor.