Worthersee

Also known as Wörthersee

The Wörthersee reaches 28 degrees Celsius in August, which is warmer than most Mediterranean destinations, and Carinthians have been aware of this advantage for a long time. Austria's warmest large lake stretches 16 kilometers west of Klagenfurt, with a string of towns, historic lidos, and fin-de-siecle villas along its shores.

The Wörthersee is Austria’s warmest large lake, hitting 28 degrees Celsius in August, which makes it the closest thing in the country to a genuine warm-water summer destination without leaving the Alps. The lake is 16 kilometers long, set between Klagenfurt at the eastern end and the resort town of Velden in the west, with public Strandbad (lake bathing areas) along both shores. The bathing culture here is worth understanding: these are not hotel pools but large public facilities with wooden jetties, changing cabins, and the kind of social density that Austrians have been perfecting since the late 19th century. Gustav Mahler spent his most productive summers in a composing hut on the south shore, writing his 8th and 9th symphonies here. The lake is 3.5 hours by train from Vienna, 1.5 hours from Salzburg, and easiest to visit in May or September if you want warm water without the peak summer crowds.