South Korea is experiencing a prolonged heatwave, with the southeastern city of Yangsan reaching a national record temperature of 42.5°C on Sunday, according to the Korea Meteorological Administration (KMA). Multiple outlets report the KMA recorded 42.5°C at around 1:26 p.m. in Yangsan, a city roughly 310 kilometers southeast of Seoul. Earlier in the day, Yangsan temperatures climbed from just above 40°C and continued rising, with one report citing 42.0°C shortly before the peak reading. The KMA data indicate the 42.5°C mark is the highest recorded since modern weather observations began on the Korean Peninsula in 1904. Yangsan has already surpassed 40°C for at least five consecutive days, with recent days including readings above 41°C. One Korea Times report adds that the daily timing of temperatures rising above 40°C has been occurring earlier and earlier as heat builds, with the possibility the city could exceed 43°C. Other reported hot spots during the same broader heatwave include nearby areas such as Gyeongju and Busan, where additional high-temperature records were noted. Authorities also issue heat warnings and emergency alert categories as conditions remain dangerous across much of the country.