Berlin police deployed water cannons to spray cooling mists over crowds during an extreme heatwave in June 2024 [1, 2].

The operation highlights the increasing strain that extreme weather events place on urban infrastructure and public safety during peak summer months.

Officers used the vehicles to provide relief to residents and tourists across the city [1, 3]. A primary focus of the deployment occurred outside the Olympiastadion, where thousands of fans were queuing for a Bruno Mars concert [1, 4].

The heatwave pushed temperatures to dangerous levels between June 27 and June 28, 2024 [2, 5]. Reports on the peak temperature varied, with some sources citing 38 °C (100 °F) [3], while others recorded a high of 41.5 °C (106.7 °F) [6].

Police used the water cannons to mitigate the risk of heat-related illness among the large crowds. The deployment occurred on June 27 [3] and June 28 [2] as the city struggled with the unprecedented temperatures.

While water cannons are typically associated with crowd control and riot suppression, the Polizei Berlin repurposed the equipment to serve as a public health tool. The misting provided immediate cooling for those unable to access indoor shelter, or air conditioning, during the peak of the heat.

Berlin police deployed water cannons to spray cooling mists over crowds

The repurposing of riot control equipment for public health indicates a growing need for adaptive urban cooling strategies. As European cities face more frequent and intense heatwaves, traditional infrastructure may prove insufficient, forcing municipal services to employ non-traditional methods to prevent mass heatstroke in high-density public gatherings.