Germany endured its hottest June day on record on Saturday, 27 June 2026, when the Deutscher Wetterdienst measured 41.5 °C in Möckern-Drewitz, Saxony-Anhalt. The extreme temperatures rippled through every mode of transport. On the motorway network, “blow-ups” caused by expanding asphalt forced lengthy closures on the A2, A1, A7 and several stretches of the A10 Berlin ring road; emergency crews sprayed carriageways with water to keep surfaces cool. Deutsche Bahn restricted speed on large parts of the long-distance network and advised passengers to postpone non-essential trips; air-conditioning failures led to several ICE terminations en route. The aviation sector also struggled. By late afternoon on 27 June, Frankfurt and Munich airports had logged more than 180 heat-related departure delays as ground handlers rotated staff more frequently and limited engine-run-up times on the apron. Lufthansa activated its “hot-weather waiver”, allowing free re-bookings within seven days. Smaller regional airports such as Bremen and Nürnberg reported runway-surface temperatures of over 55 °C, edging close to the limits for safe operations of some regional jet tyres. Municipal authorities in Berlin, Hamburg and Cologne cancelled open-air festivals and advised residents to avoid unnecessary travel. Delivery fleets and ride-hailing platforms imposed surge-pricing moratoria to reduce the number of vehicles on overheated streets. The Federal Ministry for Digital and Transport (BMDV) reiterated that Germany’s 2024 Heat-Resilient Infrastructure Plan—funding thicker asphalt and shade structures at key rail junctions—will be accelerated, with €750 million of the €2 billion package brought forward to 2026. For business travellers the practical implications are immediate: expect rolling motorway closures, slower long-distance trains and knock-on delays at hub airports for at least another week while repairs continue. Companies with duty-of-care programmes should monitor the DWD’s red warnings, encourage flexible working and remind drivers to carry water and fuel, as service-station supplies are already strained in parts of Bavaria and Saxony.
Source: ADAC
