A southwesterly, very strong and variable flow prevails over the whole area.
For Castelldefels :
Warning moderate gale offshore.
The reliability of the situation is assessed at 80%.
Fairly clear skies progressively clouding over in the morning, very cloudy skies becoming totally covered in the afternoon. Some light showers from late morning. In the evening, clear periods developing.
Possibility of showers W force 3 becoming WSW force 4 in the middle of the day then W. Gusts reaching 30 knots from the middle of the day. Slight sea becoming moderate in the middle of the day. Low, short swell from SSW then moderate in the middle of the day then, fairly long swell from S. Excellent visibility.