Viennawhen to go?

Best time: May–September · peaks in June — 24.5° by day, 15.5° by night.

Temperature and rain: 15-year ERA5 average (2011–2025) via Open-Meteo — CC BY 4.0. The price and crowd indices are estimates and still need calibration. The “best time” is the result of our own climate-comfort model — one reading of the numbers, not an objective verdict. Licensed reference: Wikimedia · CC BY 4.0.