Seoul is forecast to reach 37 °C on Monday, marking the highest temperature of the summer so far [1].

The extreme heat threatens public health and infrastructure as a persistent heatwave shifts across the Korean Peninsula. This movement is driven by a change in wind direction from west-to-east, which is pushing higher daytime temperatures toward the western regions.

In other parts of the country, the heat is even more intense. Yangsan and Daegu are both forecast to hit 39 °C [1]. These figures represent some of the most extreme readings recorded during this season's weather patterns.

The heat is not limited to daylight hours. Tropical-night warnings remain in effect for most regions across the country, meaning temperatures stay elevated well into the evening [1]. Reporter Jang Ah-young said the night before Monday was very hot [1].

Specific overnight lows highlight the lack of relief for residents in urban centers. Incheon recorded a night low of 27 °C [1], while Seoul saw a low of 26.5 °C [1]. This sustained warmth prevents the environment from cooling down, increasing the risk of heat-related illness.

An anchor for YTN said the heatwave, which intensified over the weekend, continues without sign of slowing [1]. The shift of the heatwave toward the west indicates that a wider area of the peninsula will experience these peak temperatures in the coming days.

“Seoul is forecast to reach 37 °C, marking the highest temperature of the summer so far.”

The shift of the heatwave from the east to the west of the peninsula suggests a broadening geographical impact of the extreme weather. When combined with tropical-night conditions, where temperatures do not drop sufficiently, the cumulative heat stress on the population increases, typically leading to higher energy demands for cooling and an increase in heat-stroke emergencies.