Germany recorded a record heatwave in June 2026, with temperatures soaring as high as 41.7°C in several locations, making it the second hottest June on record after 2019 [1, 2, 3, 4, 5, 6]. During the month, 99 people drowned, marking the highest June drowning toll since the 2003 heatwave when 107 drownings were recorded [1, 2, 7, 5]. Over 90% of the victims were male, with 40 of them under 30 years old, the largest group by age [1, 2, 7, 5]. Most drownings occurred in lakes and rivers. Authorities pointed to factors such as underestimating risks, swimming under the influence of alcohol or drugs, poor swimming skills, and hazardous behaviors like jumping into murky water. Ute Vogt, president of the German Lifeguard Association, said, "Men are more likely to take excessive risks and underestimate the dangers. They also enter the water more frequently under the influence of alcohol or other drugs" [1, 5].

Between June 22 and June 28, Germany recorded about 23,900 deaths, 7,100 more than in the previous two weeks, representing a 32% spike amid the heatwave [3, 8, 4, 6]. The excess mortality was concentrated in this last week of June, with other periods in 2026 showing death rates within or below recent four-year averages [3, 8, 4, 6]. The Robert Koch Institute estimated at least 5,100 heat-related deaths in Germany in 2026, mostly among people aged 75 and above [2, 4, 5, 6].

Several Western European countries also recorded thousands of excess deaths due to sustained heatwaves in late June and early July. The Netherlands, in particular, experienced 911 excess deaths from June 22 to July 5, with elderly residents (80+) and those living in the hottest regions hardest hit. The Dutch National Institute for Public Health and the Environment (RIVM) noted that while exact causes remain unclear, high temperatures are very likely a key factor [2, 9, 10, 11]. "World Weather Attribution" scientists said the June 2026 heatwaves in Europe would have been "almost impossible" without human-caused climate change [9, 10, 11].

The focus now turns to monitoring health impacts as summer continues. Authorities across Europe are enhancing heat safety warnings and advising caution around water to prevent further drownings and heat-related deaths.