Seyhler, Turkey offers 1 beach perfect for sunbathing, surfing, swimming, and more. Seyhler, Bartin, Turkey, is known for its proximity to the ancient city of Amasra and the scenic beauty of the Black Sea coast. The best time to travel to Seyhler, Turkey, is from May to September, with average air temperatures ranging from 20°C to 30°C and water temperatures around 22°C to 26°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!