Czech Republic marks new temperature record of 41.1C

"This is the first time we have ever registered a temperature of 41 degrees in our official weather station network. Temperatures are still growing so this is not the final high," CHMI added on X.

On Saturday, the weather service reported a new high of 40.9 degrees, also in Doksany, beating a 14-year-old record.

Like much of Europe, the Czech Republic has been grappling with an unprecedented heatwave for the past two weeks.

CHMI said it expected the heat to peak on Sunday with rather heavy storms forecast for western Czech Republic in the evening GMT.

On Sunday, two weather stations recorded 40 degrees Celsius around an hour after noon, two hours earlier than on Saturday.

CHMI said on Sunday morning it had issued a smog warning for Prague and the region around the Czech capital because of high ground ozone levels caused by the heat.

It urged people to avoid physical strain, especially those with chronic breathing problems, elderly people and children.