For Poros :
Warning moderate gale offshore.
The reliability of the situation is very good.
Good clear periods but lots of cloud, too. Light showers. In the evening, cloudy spells, sometimes dense.
Light showers progressively becoming less frequent. N wind force 3 from the middle of the day. Gusts reaching 19 knots. Slight sea. Low, short swell from ENE. Excellent visibility.