Austria's June of extremes: From -10.1°C to 40.1°C

Austria experienced a June of dramatic climatic contrasts, with temperatures swinging from a frigid -10.1 degrees Celsius to a scorching 40.1 degrees Celsius. Despite a severe heatwave in the latter half of the month, June 2026 was ultimately the fourth warmest on record, not the absolute hottest, according to GeoSphere Austria.

Klimatologist Alexander Orlik of GeoSphere Austria noted that the latter half of June saw one of the most extreme heatwaves in the country's measurement history. "Comparable heatwaves only occurred previously in July or August, but for a June, new benchmarks were set," he stated. However, the first half of the month saw temperatures near the climate average, and even significantly below it from June 10 to 12, tempering the overall monthly record.

The month began with widespread rain and even snow in higher elevations, particularly in East Tyrol, Carinthia, Lungau, and western Upper Styria. This precipitation was followed by a shift to sunny, high-pressure weather around mid-month. The onset of the heatwave brought only isolated, though sometimes severe, thunderstorms. For instance, Bruck an der Mur recorded 97 millimeters of rain in two hours on June 20, and Puchberg am Schneeberg received 93 millimeters in two and a half hours.

From June 15 to 27, much of Austria remained largely without precipitation. This dry period, combined with intense sunshine and low humidity, significantly worsened the drought conditions that had persisted since December 2025, particularly affecting Lower Austria, Vienna, and northern Burgenland.

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In the second half of the month, Austria experienced one of the most extreme heatwaves in the country's measurement history. Comparable heatwaves only occurred previously in July or August, but for a June, new benchmarks were set.