A southwesterly, weak and variable flow prevails over the whole area.
For Ostia :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sunny despite some high cloud in the morning, sunny in the afternoon. No precipitation. In the evening, light cloudy spells.
NE force 2 turning S force 3 in the middle of the day then becoming force 2. Gusts reaching 16 knots in the middle of the day. Smooth sea. Low, short swell from W. Excellent visibility becoming good in the evening.