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[HEALTH] · Austria · 51 sources

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Austria hits 41 °C record as heatwave drives water cuts and city adaptations

On 4 August 2026 the Stammersdorf weather station in Vienna recorded 41 °C, setting a new national temperature record for Austria. The heatwave also produced a 40.8 °C reading in central Vienna and triggered red‑level heat alerts for Vienna, Lower Austria and Burgenland.

The extreme temperatures caused drought‑related problems: wildfires burned 18 ha in the Lobau area, river traffic on the Danube largely halted, and the Wiener Wasser utility temporarily cut water deliveries to the nearby municipality of Laab im Walde. Health authorities issued heat‑wave advisories for vulnerable groups.

Cities responded with mitigation measures. Vienna created a network of “Cool Zones” with shaded areas, fountains, misting stations and cooled public buildings. Graz announced a programme to plant more trees, reduce sealed surfaces and apply the Schwammstadt (sponge‑city) technique to store rainwater and cool streets. Additional night‑time records were set, including a 28.5 °C minimum in Hornstein and a 28.1 °C night in central Vienna, the highest night‑time temperatures ever recorded in the country.

Entities

Austria · Bad Deutsch‑Altenburg · Burgenland · Cool Zones (Vienna) · Cool zones · Danube River · GeoSphere Austria · Graz · Hornstein · Judith Schwentner · Laab im Walde · Langenlebarn

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