For Platja de Castelldefels :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fair weather with mostly clear skies. In the evening, skies with few clouds.
SSW force 2 becoming force 3 in the middle of the day then SSE force 2. Gusts reaching 18 knots in the middle of the day. Smooth sea becoming smooth to slight in the middle of the day. Low, short swell from ESE. Excellent visibility becoming excellent in the middle of the day.