Kumbor, Montenegro offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Kumbor, Herceg Novi, Montenegro, is known for the luxurious Portonovi resort and marina. The best time to travel to Kumbor, Montenegro, is from June to September, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 23-26°C (73-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!