South Korea experienced a severe weather divide as western regions faced intense heat and the eastern coast endured heavy rainfall [1].
This atmospheric split disrupted different halves of the peninsula simultaneously, challenging regional infrastructure and public safety through two opposing extreme weather events.
In the west, temperatures soared across Gyeonggi province and Seoul. Hwaseong recorded a maximum temperature of 39.5°C [1], while Bucheon reached 39.1°C [1]. In the capital city of Seoul, the official highest temperature was recorded at 36.8°C [1]. These conditions persisted for almost two weeks [1].
While the western regions struggled with heat, the eastern coast faced extreme precipitation. In Gangneung, rainfall reached 80 mm per hour [1]. Other affected areas included the northeast coast of the North Korea Sea, and various eastern coastal locales [2].
Meteorologist Park Ji-eun said the contrast was caused by a high-pressure system in the north and a low-pressure system in the south. This configuration created easterly winds that carried warm, moist air from the East Sea onto the eastern coast, producing heavy rain, while the western region remained under hot, dry air [1].
Local reports indicated that although official heat wave warnings were eventually lifted, the severe heat in western areas remained a persistent issue [2]. The divergence in weather patterns created a scenario where one side of the country faced drought-like heat, while the other dealt with flood-level rainfall.
“Western regions recorded temperatures up to 39.5°C while the eastern coast received extreme rainfall.”
The simultaneous occurrence of extreme heat and heavy precipitation across a small geographic area illustrates the increasing volatility of regional weather patterns. This 'east-west contrast' complicates national emergency responses, as government resources must be split between heat-stroke prevention in the west and flood mitigation in the east.
