Sekirn, Austria offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sekirn, Karnten, Austria, is known for its proximity to the picturesque Lake Worthersee and the historic city of Klagenfurt. The best time to travel to Sekirn, Austria, is during the summer months of June to August, when the average air temperature is around 25°C (77°F) and the water temperature in nearby lakes is approximately 22°C (72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!