Poland registered a provisional temperature of 40.5C in the western town of Slubice on June 28, a figure that would surpass the country's long-standing official heat record if it is confirmed by national authorities.
The strongest basic account in the supplied material came from Anadolu Agency, which said the reading was taken in Slubice near Poland's western border and exceeded the 40.2C mark recognized from Proszkow in July 1921. That framing makes the measurement historically significant even before the usual verification process is complete, because the previous benchmark had stood for more than a century.
BBC News placed the Polish reading inside a wider continental emergency. Its report said temperature records were also broken in Germany and the Czech Republic as an unusually early summer heatwave moved east across Europe. The BBC described the broader episode as part of a severe run of weather that had already been linked by the head of the World Health Organization to more than 1,300 excess deaths across Europe since 21 June.
Taken together, the two sources show why the Slubice figure drew immediate attention beyond Poland. It was not an isolated hot afternoon but one data point in a regional event affecting public health, infrastructure and emergency planning. The BBC said schools had shut in some places, power systems were under strain and authorities across several countries were taking steps to reduce heat-related harm.
The supplied evidence also highlights how rapidly the record-setting conditions were spreading. BBC reported that Germany recorded 41.7C near the Polish border and that the Czech Republic also established a fresh national high. Those parallel records matter because they suggest the Polish measurement occurred under a large-scale atmospheric pattern rather than a narrowly local anomaly.
Neither source packet provides a final certification notice from Poland's meteorological authorities, so the safest description is provisional. Even so, the verified material supports several firm conclusions: Slubice recorded 40.5C on the event date; that value was above Poland's previously recognized all-time high; and the reading occurred during a deadly European heatwave that was breaking records across multiple countries.
The historical significance of the number therefore rests on two levels. Nationally, Poland appeared to move beyond a temperature threshold that had held since 1921. Regionally, the reading added evidence that extreme heat was reaching new levels across Europe during the 2026 summer, reinforcing warnings from public-health and climate officials that high-temperature emergencies were becoming harder for the continent to absorb safely. Even if later review adjusted the measurement, the event-date reading was strong enough to become a major marker in the season's escalating heat story.
