Germany's Emergency Medical Services Pushed to the Limit by the June 2026 Heat Wave

Germany's Robert Koch Institute has recorded nearly 14,000 heat-related deaths in 2026, but that toll only tells part of the story. Behind those numbers, the weekend of 26 to 28 June saw Germany's emergency medical services, the Rettungsdienst and its emergency departments (Notaufnahmen), absorb a surge in demand rarely documented at this scale in the country. It is a direct warning for any EMS system facing increasingly hot summers.

A week that pushed emergency services to their limit

Over the weekend of 26 to 28 June, as the Deutscher Wetterdienst measured temperatures up to 40.2°C in North Rhine-Westphalia, the country logged nearly 5,000 additional ambulance callouts compared to a typical Saturday. A normal day averages 67 ambulance callouts per monitored district. During the heat period, that figure rose to 80 callouts on average, a 20 percent increase.

Emergency physician (Notarzt) dispatches followed an even steeper trajectory: from an average of 19 callouts per day under normal conditions to 27 per day during the hottest June days, a 42 percent increase. Emergency departments, for their part, reported a marked rise in heat-related circulatory complications and dehydration cases. One detail matters for operational planning: call volume stayed well above baseline for several days after the heat wave officially ended, meaning the strain did not stop the moment the heat warning was lifted.

Why exertional heat stroke is also a risk for the responders

Attention naturally focuses on the patients being treated, but a 42 percent jump in Notarzt dispatches within a matter of days also means crews running back-to-back calls in vehicles and uniforms not designed for prolonged exposure to extreme heat. EMS personnel and SMUR- or SAMU-equivalent crews, who lift, carry, and immobilize patients under these conditions, face the same exertional heat stroke risk well documented among other physically demanding professions working in extreme heat: firefighters, military personnel, event security staff. It is a frequent blind spot in hospital heat action plans, which tend to focus on patient surge without always accounting for the thermal protection of the teams themselves.

Cool First, Transport Second under surge conditions

The ACSM Expert Consensus Statement 2023 confirms that the reference treatment for exertional heat stroke remains immediate cold water immersion, before transport, with the goal of bringing core temperature below 39°C within 30 minutes of collapse. Casa et al. (Exercise and Sport Sciences Reviews, 2007) established a cooling rate of 0.35°C per minute for this method, far ahead of the wet towels or ice packs typically available in the field. The Korey Stringer Institute, tracking more than 401 cases, reports a 100 percent survival rate when this threshold is reached within 30 minutes.

In a surge scenario like the one Germany saw in late June, the ability to treat a suspected exertional heat stroke case quickly, whether the patient is a member of the public or a member of the crew, directly determines the clinical outcome. That ability depends less on knowledge of the protocol, which is well established in the profession, than on having the right equipment immediately available at the point of care.

Cooling capability that can deploy on the spot

That is the role Kollder One plays for emergency services already equipping their advanced posts and SMUR-equivalent vehicles. A stainless steel emergency cooling tub, set up by a single responder in under 2 minutes, usable directly at the point of care rather than after transport to a fixed facility. Packed for transport with Kollder Go, it weighs 11.1 kg and requires no heavy logistics to deploy. German emergency medical services anticipating a repeat of this kind of seasonal peak can request a Kollder quote to equip their crews.

Further Reading

• Germany's 2026 Heat Death Toll Nears 14,000: The Deadliest Summer Since Records Began in 1992
• Emergency Department Surge During Heat Waves: Why Triage Is the Critical Step
• Seasonal Readiness for EMS Dispatch: Anticipating Exertional Heat Stroke Calls
• Fire and EMS Coordination for Exertional Heat Stroke Response
• Kollder solutions for emergency medical services
• Request a Kollder quote

Sources: Robert Koch Institute, weekly report on heat-related mortality (2026); Deutscher Wetterdienst (DWD), June 2026 temperature records; idw-online, coverage of Berlin Rettungsdienst strain during the June 2026 heat wave; Oberhessen-Live, coverage of emergency callout volume during the heat wave (July 2026); ACSM Expert Consensus Statement 2023; Casa DJ et al., Exercise and Sport Sciences Reviews, 2007; Korey Stringer Institute, Douglas Casa (UConn).