Heat records smash across Europe as deadly wave moves east

Denmark set a new national temperature record of 37 C in Ødum, north of Aarhus, as Europe’s heat wave pushed into Central Europe on Saturday. Switzerland, Germany and the Czech Republic also broke heat marks the same day, underscoring how far the extreme temperatures had spread beyond the Mediterranean belt.

The Danish Meteorological Institute said Ødum’s reading was the country’s warmest day since records began in 1874. Basel reached 38.8 C, while preliminary German Weather Service data showed 41.5 C in Möckern-Drewitz, in Saxony-Anhalt. In the Czech Republic, CHMI said Doksany, north of Prague, hit 40.6 C, topping the previous national record of 40.4 C set in 2012 in Dobrichovice.

The damage was not limited to thermometers. German authorities reported highway damage and train cancellations as the heat moved east after baking Western Europe earlier in the week. The pattern exposed how vulnerable transport networks can be when roads buckle and rail systems face emergency slowdowns, a sign that infrastructure built for milder summers is struggling to absorb repeated spikes.

For health officials, the bigger warning was the human toll. Reuters reported the broader heatwave was linked to dozens of deaths in Western Europe, while public warnings across the region pointed to rising risks for older adults, outdoor workers and people without reliable cooling. That burden falls unevenly: those living in older housing, crowded apartments or low-income neighborhoods often have the least protection when temperatures stay high day and night.

World Weather Attribution researchers said the heatwave would have been “virtually impossible” without human-caused climate change. The same analysis found that night-time temperatures this week were 100 times more likely than they were two decades ago, a shift that matters as much as daytime peaks because bodies recover less when the heat does not let up.

France’s weather agency has compared the conditions to the August 2003 European heatwave, a benchmark for extreme summer danger that lasted 16 days and caused an estimated 80,000 excess deaths across Europe. This week’s records in Switzerland, Denmark, Germany and the Czech Republic show that Europe’s heat emergency is no longer confined to the south, and the countries now breaking records will need far stronger plans for housing, transit, hospitals and public alerts as hotter summers move east.