Kadikoy, Turkey offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Kadikoy, Istanbul, Turkey, is known for its vibrant Kadikoy Market, the historic Haydarpasa Terminal, and the bustling Moda neighborhood. The best time to travel to Kadikoy, Turkey, 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!