Donji Stoliv, Montenegro offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Donji Stoliv, Kotor, Montenegro, is known for its proximity to the UNESCO World Heritage Site of Kotor Old Town and the scenic Bay of Kotor. The best time to travel to Donji Stoliv, Montenegro, is from June to September, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 24°C (75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!