Koserow, Germany offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Koserow, Mecklenburg Vorpommern, Germany, is known for its iconic Seebrucke Koserow pier and the nearby Streckelsberg, one of the highest cliffs on the island of Usedom. The best time to travel to Koserow, 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!