Prolonged heat waves leave behind not only parched grasslands and dry rivers, but also grim statistical records. From the beginning of the year through the end of August 2026, 12 cases were recorded in Slovakia where excessive natural heat was the direct cause of death. According to the Statistical Office of the Slovak Republic (Štatistický úrad SR), this is the highest figure in the last decade.
A nearly tenfold increase in figures
Compared to the previous decade (2016–2025), the current figures are shocking. In previous years, between zero and three people died annually in the country as a direct result of the heat, while this year’s figure has increased nearly tenfold.
Statisticians emphasize that the direct causes of such tragic cases are most often diagnoses related to heatstroke, severe exhaustion due to high temperatures, or specific injuries classified according to the international system.
What Is Happening with Overall Mortality
Despite the alarming statistics on direct victims of high temperatures, the overall picture of summer mortality turned out to be somewhat different. According to preliminary data from the agency, a total of 12,510 people died in the country between June and August 2026.
This figure reveals certain trends:
- It was 2.2% lower than the average for the same summer months of the previous decade, when an average of 12,795 people died.
- Compared to the period before the COVID-19 pandemic, the total number of deaths this summer was also slightly lower.
- No large-scale overall excess mortality (so-called “nadúmrtnost”) that could be directly attributed solely to weather conditions was recorded in the overall figures.
Why Official Statistics May Hide the True Scale
Experts and international organizations, including the World Health Organization (WHO), have repeatedly warned that direct heat-related death figures often represent only the tip of the iceberg.
Heat places an enormous strain on the cardiovascular, respiratory, and nervous systems, as well as on the kidneys. It triggers exacerbations of chronic conditions, hypertension, and diabetes. As a result, medical death certificates most often list myocardial infarction, acute heart failure, or stroke as the primary cause of death, even though extreme overheating of the body was the actual catalyst for the critical condition.
