Donji Stoj, Montenegro offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Donji Stoj, Ulcinj, Montenegro, is known for Velika Plaza, a long sandy beach popular among tourists. The best time to travel to Donji Stoj, 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!