A northerly, moderate and variable flow prevails over the East of the basin. Over the West, it is easterly, moderate and very variable.
For Castelldefels :
No gale warning.
The reliability of the situation is assessed at 90%.
Skies changeable to very cloudy. No precipitation. In the evening, good clear periods but cloud building.
Showers towards the end of the night. NNE force 1 freshening SW force 3 in the middle of the day then becoming SSW. Gusts reaching 17 knots in the middle of the day. Slight sea. Low, short swell from E. Excellent visibility becoming excellent in the evening.