Nordborg, Denmark offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Nordborg is known for the Universe Science Park, a popular attraction in Syddanmark, Denmark. The best time to travel to Nordborg, Denmark, is from June to August, when the average air temperature is around 18°C (64°F) and the water temperature is approximately 17°C (63°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!