Glucksburg, Germany offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Glucksburg is known for the Glucksburg Castle, a significant Renaissance water castle in Schleswig Holstein, Germany. The best time to travel to Glucksburg, Germany, is from June to August, when the average air temperature is around 18-22°C (64-72°F) and the water temperature is approximately 17-20°C (63-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!