Klimno, Croatia offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Klimno, Primorje Gorski Kotar, Croatia, is known for its healing mud beach, Soline Bay. The best time to travel to Klimno, Croatia, is from June to September, when the average air temperature is around 75°F (24°C) and the sea temperature is approximately 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!