Heiligenhafen, Germany offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Heiligenhafen is known for its picturesque marina, the Heiligenhafen Pier, and the Graswarder Nature Reserve. The best time to travel to Heiligenhafen, 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!