For Grotto Azurro :
No gale warning.
We are 80% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will fall.
Very cloudy skies becoming totally overcast. Light showers followed by rain. In the evening, overcast skies.
Spells of light rain during the night. SE force 2 in the middle of the day turning N force 1 in the evening. Gusts reaching 15 knots in the middle of the day. Slight sea. Low, fairly long swell from ESE. Excellent visibility becoming good in the evening.