Beach Duga Uvala, Croatia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Beach Duga Uvala is known for its picturesque coastline and crystal-clear waters in Istria, Croatia. The best time to visit Beach Duga Uvala, Croatia, is from June to September, with average air temperatures around 75-85°F (24-29°C) and water temperatures ranging from 72-77°F (22-25°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!