Opcina Dubrovnik, Croatia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Dubrovnik is known for its historic Old Town, the ancient city walls, and its role as a filming location for "Game of Thrones." The best time to travel to Opcina Dubrovnik, Croatia, is from May to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 73°F (23°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!