Erdemli, Turkey offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Erdemli is known for the ancient city of Kanlidivane and the stunning Kizkalesi Castle. The best time to travel to Erdemli, Turkey, is from May to September, with average air temperatures ranging from 25°C to 30°C and water temperatures around 24°C to 28°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!