For Cala d"Ostia :
No gale warning.
We are 75% 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.
S wind force 3 from the middle of the day. Gusts reaching 17 knots in the middle of the day. Smooth sea becoming smooth to slight in the evening. Low, short swell from ENE. Excellent visibility.