Donja Banda, Croatia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Donja Banda, Dubrovnik Neretva, Croatia, is known for its proximity to the stunning Adriatic coastline and the historic city of Dubrovnik. The best time to travel to Donja Banda, Croatia, is during late spring to early fall (May to September), when the average air temperature ranges from 20-30°C (68-86°F) and the average sea temperature is around 22-25°C (72-77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!