Potomje, Croatia offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Potomje is known for its renowned Dingac vineyards and wine production. The best time to travel to Potomje, Croatia, is from May to September, when the average air temperature is around 75°F (24°C) and the sea temperature is approximately 73°F (23°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!