Sounio, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Sounio is known for the Temple of Poseidon, a major archaeological site and popular tourist attraction. The best time to travel to Sounio, Greece, is from May to September, with average air temperatures around 75-85°F (24-29°C) and water temperatures around 72-77°F (22-25°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
