Aabenraa, Denmark offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Aabenraa is known for its historic Aabenraa Castle and the scenic Aabenraa Fjord. The best time to travel to Aabenraa, Denmark, is during the summer months of June to August, when the average air temperature is around 17°C (63°F) and the water temperature is approximately 16°C (61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!