Kupari, Croatia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kupari is known for its abandoned luxury hotels and picturesque beaches. The best time to travel to Kupari, Croatia, is from June to September, with average air temperatures around 75°F (24°C) and water temperatures about 75°F (24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!