South Korea records its highest temperature since modern weather observations began in 1904 as an intense heatwave continues. The Korea Meteorological Administration (KMA) says Yangsan reaches 42.5°C on Sunday afternoon, the highest reading reported to date and occurring after temperatures exceed 40°C for a fifth consecutive day. Authorities issue emergency heat alerts for affected areas, urging people to “immediately” stop all outdoor activities. The warnings also highlight the risks of indoor environments without air conditioning, describing them as dangerous.

The government advises residents to move right away to cooler locations such as designated cooling centres or shaded areas and to stay hydrated while resting. Information shared across outlets indicates more than twenty localities are covered by emergency heatwave alerts, a warning category introduced this year. One outlet notes an emergency alert threshold tied to forecasts of perceived temperature, and that the prime minister orders local officials to strengthen safety checks and maintain stable power and water supplies. Officials also reference trends showing heatwave days have increased in recent years.