Is it colder in Bulgaria than UK?

Bulgaria is generally colder than the United Kingdom. Bulgaria has a continental climate with cold winters and hot summers, while the UK has a temperate climate with mild winters and cool summers. The average temperature in Sofia, the capital of Bulgaria, is -1.3 degrees Celsius in January and 23 degrees Celsius in July, while the average temperature in London, the capital of the United Kingdom, is 4.5 degrees Celsius in January and 17.8 degrees Celsius in July.