Otterndorf, Germany offers 1 beach perfect for sunbathing, surfing, swimming, and more. Otterndorf is known for its historic Altstadt, the Medem River, and the Otterndorf Beach along the North Sea. The best time to travel to Otterndorf, 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!