Korinthos, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Korinthos, Peloponnese, Greece, is known for its ancient ruins, including the Temple of Apollo and the archaeological site of Ancient Corinth. The best time to travel to Korinthos, Greece, is from May to September, with average air temperatures ranging from 25-30°C (77-86°F) and water temperatures around 22-26°C (72-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!