The most hot days Vienna has recorded, in its 2026 summer.
summer of 1961-19902.3
summer32
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Hot here means 31.9 °C or above, a level about one summer day in twenty used to reach at this station between 1971 and 2000. The bar has not moved; the number of days clearing it has. Every year counted over the whole window; this season is complete, so no year is cut short. That threshold is Vienna's own. It is not a national standard and it is not comparable with another city's: every figure on this page is measured against this station and nothing else.
23 nights that never dropped below 20 °C, against 1.6 in a typical 1961-1990 summer. That is 3rd of its 172 summers.
The hottest day of Vienna's 2026 summer. 2026 is the hottest on this record too, at 39.8 °C. Both the count and the peak are records here, which is not true everywhere: a count and a peak are separate claims and each carries its own rank. The previous best was 38.5 °C in 2013, the dot on the drop line, and a typical summer here peaks at 33.0 °C.
54 cities are measured this way, each against its own record. See them on the map