Spiekeroog, Germany offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Spiekeroog is known for its serene beaches, the National Park House Wittbulten, and the historic Old Island Church. The best time to travel to Spiekeroog, 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!