Sunday was the warmest day ever recorded at Prague’s Klementinum, the oldest Czech monitoring station. The temperature reached 37.9 degrees Celsius, the highest since measurements began in 1775.
The previous record for the 30th of June at Klementinum was 35.7 degrees, set in 1950.
For June as a whole, the average national temperature was 20.7C, which was the warmest since 1961 when forecasters began monitoring monthly averages.
Across Europe, several other records were set as well, with a town in southern France reporting a new national high of 45.9 C on June 28.
Last week much of Europe sweltered in an early summer blast of scorching temperatures, as scientists warn that global warming linked to human fossil fuel use could make such heatwaves more frequent.