Insel Hiddensee, Germany offers 1 beach perfect for sunbathing, surfing, swimming, and more. Insel Hiddensee, Mecklenburg Vorpommern, Germany, is known for the Dornbusch Lighthouse and the Gerhart Hauptmann House. The best time to travel to Insel Hiddensee, Germany, is from June to August, when the average air temperature is around 20°C (68°F) and the water temperature is approximately 18°C (64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!