Anavyssos, Greece offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Anavyssos is known for its beautiful beaches and the nearby archaeological site of Sounion. The best time to travel to Anavyssos, Greece, is from May to September, with average air temperatures ranging from 75°F to 85°F and water temperatures from 72°F to 79°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!