For Porto :
No gale warning.
We are 80% sure of the situation, because hail may not be as easy to predict.
Skies very cloudy to overcast in the morning, storms gradually improving in the afternoon. Risk of showers in the morning, showers with possibility of hail in the afternoon. In the evening, very cloudy.
Chance of light rain. S force 5 turning WNW in the middle of the day then becoming force 3. Gusts reaching 37 knots in the middle of the day. Slight sea becoming moderate in the middle of the day then rough. Low, short swell from WSW then moderate, fairly long swell in the middle of the day then from W. Excellent visibility.