Sikyona, Greece offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Sikyona is known for its ancient ruins, including the Archaeological Museum of Sikyona and the ancient theater. The best time to travel to Sikyona, Greece, is from May to September, with average air temperatures ranging from 75°F to 85°F and water temperatures around 73°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!