Sydals, Denmark offers 8 beaches perfect for sunbathing, surfing, swimming, and more. Sydals is known for its proximity to the scenic island of Als and the historic Augustenborg Palace. The best time to travel to Sydals, Denmark, is during the summer months of June to August, when the average air temperature is around 18°C (64°F) and the water temperature is approximately 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!