Megara, Greece offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Megara is known for its ancient ruins, including the Megara Hyblaea archaeological site and the historic Monastery of Saint John the Baptist. The best time to travel to Megara, Greece, is from May to September, with average air temperatures ranging from 20°C to 30°C and water temperatures from 20°C to 25°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!