Srima, Croatia offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Srima, Sibenik Knin, Croatia, is known for its beautiful beaches and proximity to the historic city of Šibenik and the Krka National Park. The best time to travel to Srima, Croatia, is from June to September, with average air temperatures around 75°F (24°C) and water temperatures about 77°F (25°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!