Heatwave warnings remained in effect for all regions except for Jeju Island, according to the Korea Meteorological Administration (KMA). The agency blamed the extreme weather on a persistent high-pressure system trapping hot air over the peninsula.
Daily highs of 31 to 36 degrees Celsius combined with high humidity have made conditions unbearable for many. While brief showers have offered some relief, they have also contributed to the oppressive heat by increasing humidity levels.
"In areas with showers, temperatures will temporarily decrease, but after the showers, temperatures will rise again during the day with high humidity, resulting in hot weather," said Kim Dae-hoon, a meteorologist with the KMA.
The heatwave has already broken records, with 11 days of temperatures exceeding 33 degrees Celsius, 4.5 days more than normal. Nighttime temperatures have also been unusually high, with the number of tropical nights – defined as those with lows of 25 degrees Celsius or higher – triple the average.
The KMA forecast little respite in the near future, with hot and humid conditions expected to persist through Liberation Day, which falls on Aug. 15.
Health officials urged residents to stay hydrated, limit outdoor activities, and check on vulnerable populations, including children, the elderly, and those with chronic illnesses.
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