Dubrovnik, Croatia offers 22 beaches perfect for sunbathing, surfing, swimming, and more. Dubrovnik is known for its stunning medieval architecture and beautiful Adriatic beaches. The best time to travel to Dubrovnik, Croatia, is from May to September, when the average air temperature ranges from 20°C to 30°C (68°F to 86°F) and the sea temperature is around 21°C to 25°C (70°F to 77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!