Barbat, Croatia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Barbat, Primorje Gorski Kotar, Croatia, is known for its proximity to the ancient city of Rab and its beautiful beaches. The best time to travel to Barbat, Croatia, is from June 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!