Unterach am Attersee, Austria offers 1 beach perfect for sunbathing, surfing, swimming, and more. Unterach am Attersee is known for its picturesque lakeside setting and crystal-clear waters ideal for swimming and water sports. The best time to travel to Unterach am Attersee, Austria, is during the summer months of June to August, when the average air temperature ranges from 20°C to 25°C (68°F to 77°F) and the water temperature is around 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!