Altenkirchen, Germany offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Altenkirchen, Mecklenburg Vorpommern, Germany, is known for its proximity to the scenic Rugen Island and the Jasmund National Park. The best time to travel to Altenkirchen, Germany, is from June to August, with average air temperatures around 18-22°C (64-72°F) and water temperatures in nearby lakes around 18-20°C (64-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!