Temperatures broke 35 degrees in many parts of the nation Sunday, causing the death of one man and sending at least 609 other people to hospitals for overheating, a survey says.
In the city of Shikokuchuo in Ehime Prefecture, a 50-year-old man was taken to a hospital and later confirmed dead, apparently due to heatstroke.
A high-pressure system over the Pacific Ocean carried in warm southerly winds, raising temperatures from Kyushu to Hokkaido.