Wenningstedt, Germany offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Wenningstedt, Schleswig Holstein, Germany, is known for its scenic beaches and the iconic Red Cliff on the island of Sylt. The best time to travel to Wenningstedt, Germany, is from June to August, with average air temperatures around 18°C (64°F) and water temperatures around 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!