Deniz Evler, Turkey offers 1 beach perfect for sunbathing, surfing, swimming, and more. Deniz Evler, Kocaeli, Turkey, is known for its proximity to the Kartepe Ski Resort and the Sapanca Lake. The best time to travel to Deniz Evler, Turkey, is from May to September, with average air temperatures around 75-85°F (24-29°C) and water temperatures around 70-80°F (21-27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!