South Korea records highest-ever temperature of 42.5°C amid severe heatwave

Scientists warn that extreme weather events becoming more frequent as a result of human-induced climate change

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SEOUL: South Korea has recorded its highest temperature since weather records began, with the southeastern city of Yangsan reaching 42.5°C, as authorities issued emergency heatwave warnings and urged residents to avoid outdoor activities.

According to the Korea Meteorological Administration (KMA), the record temperature was recorded at 1:26pm local time (0426 GMT) on Sunday.

Yangsan at the centre of record-breaking heat

Yangsan has been the epicentre of the country’s ongoing heatwave, with temperatures exceeding 40°C for five consecutive days.

Several other cities, including Daegu and Busan, also experienced temperatures in the upper 30s as the intense heat spread across the country.

Residents sought relief in air-conditioned shopping malls and cafés, while many avoided outdoor activities due to the extreme conditions.

Authorities issue emergency warning

More than 20 localities were placed under emergency heatwave alerts, a warning category introduced this year to better respond to rising temperatures.

The weather agency advised residents to:

  • Immediately stop outdoor activities
  • Move to air-conditioned or shaded locations
  • Stay hydrated
  • Avoid remaining in buildings without cooling systems

An emergency alert is issued when the perceived temperature is forecast to reach 38°C or the actual temperature reaches 39°C.

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Baseball game cancelled

The extreme heat also disrupted sporting events.

The Korea Baseball Organisation (KBO) cancelled a professional baseball game in Changwon after temperatures climbed to 39.5°C, marking the second consecutive game called off in the city because of dangerous weather conditions.

Officials said the decision was taken to protect the health and safety of players and spectators.

Climate change concerns grow

According to KMA data, the average number of annual heatwave days in South Korea has increased from eight days in the 1970s to around 19 days over the past five years.

Scientists say human-induced climate change is making extreme weather events such as heatwaves more frequent and more intense.

The return of the El Niño climate pattern this year has also contributed to higher global temperatures.

South Korea is not alone in experiencing extreme heat. Much of Europe has also endured prolonged heatwaves this summer, with temperatures exceeding 40°C in several southern regions, prompting health warnings and increasing wildfire risks.

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