Scorching heatwave to hit South Korea after monsoon rains, with highs of 38C expected

South Korea is set to experience a significant heatwave as the monsoon season draws to a close. Following the retreat of the seasonal rains, temperatures are predicted to soar, with the mercury potentially reaching a scorching 38 degrees Celsius in inland areas of North Gyeongsang Province by Sunday.

The Korea Meteorological Administration forecasts that daytime temperatures will climb above 30 degrees Celsius across most of the country starting Friday. Areas already under heatwave advisories can expect perceived temperatures to reach around 33 degrees Celsius, with the possibility of these advisories being expanded. Tropical nights, where nighttime temperatures remain above 25 degrees Celsius, are also expected to persist in many regions.

While the heavy rains are expected to cease by Friday morning in many areas, localized downpours are still possible. The northern inland regions of Gyeonggi Province and Gangwon Province could see intense rainfall of 50 to 100 millimeters, with some areas potentially receiving over 150 millimeters. These downpours may be accompanied by strong gusts, thunder, and lightning, particularly in inland areas of Gyeonggi, Gangwon, Chungcheong, and northern Jeonbuk. Residents are advised to exercise caution near rivers and in low-lying areas due to potential flash floods.

Looking ahead to the weekend, Saturday's temperatures are expected to range from 29 to 37 degrees Celsius, with Sunday seeing a further increase to 30 to 38 degrees Celsius. This prolonged period of high temperatures raises concerns about public health and the potential strain on infrastructure. The shift from monsoon rains to extreme heat highlights the volatile weather patterns the region is experiencing.