Summer in Vienna — festivals, beaches & open-air 2026
Vienna in summer turns into one long open-air stage. From late June the city empties onto the Danube — the 21-kilometre Donauinsel becomes a beach, and free festivals, film screenings and beer gardens run right through to September.
This guide pulls together the season’s highlights: the free Donauinselfest, swimming spots on the Alte and Neue Donau, the Rathausplatz open-air film festival, and shaded beer gardens for the hot afternoons — plus whatever public events are on right now, live from the map.
Good to know
What free events are on in Vienna in summer?
The Donauinselfest (early July) is Europe’s largest free open-air festival, and the Rathausplatz Film Festival screens operas and concerts free every evening from early July to September.
Where can you swim in Vienna?
The Donauinsel and the Alte Donau are the city’s main swimming spots — reachable by U-Bahn (U1 Donauinsel, U6 Neue Donau), with sandy stretches like Copa Beach at the southern tip.