A northerly flow prevails over the South-East of the basin. Over the West and the North, it is westerly, strong and mostly variable.
For Viana do Castelo :
No gale warning.
The reliability of the situation is very good.
Good clear periods but lots of cloud, too. Chance of light rain. In the evening, clear spells, risk of mist forming.
No precipitation. WSW wind force 2 from the middle of the day. Gusts reaching 13 knots in the middle of the day. Slight sea. Low, fairly long swell from WNW. Good visibility becoming reduced by mist in the evening.