The mercury in central Tokyo soared to 31.3 degrees Saturday, setting a new record for the second day in a row for this time of year, the Meteorological Agency said.
Temperatures also exceeded 30 degrees in many eastern and central parts of the country as warm air lingered while a high pressure system gradually moved away from the archipelago, the agency said.
By rising above 30 degrees Friday, the temperature in central Tokyo shattered a 98-year-old record for this time of year.
The mercury rose outside the capital as well. The town of Yokoshibahikari in Chiba Prefecture recorded 32.1 degrees and the city of Shizuoka logged 32 degrees, the agency said.
Temperatures are expected to decrease as a cold front begins to pass over the nation, according to the agency.