Broce, Croatia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Broce, Dubrovnik Neretva, Croatia, is known for its proximity to the historic city of Ston and the impressive Ston Walls. The best time to travel to Broce, 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!