WorldSouth Korea recorded its highest temperature on Friday since modern weather observations began, as a prolonged heat wave pushed temperatures above 40 C for a third straight day in parts of the country.Mercury has topped 40 C for 3rd straight day in parts of the countryThomson Reuters · Posted: Aug 04, 2026 3:47 PM EDT | Last Updated: 1 hour agoListen to this articleEstimated 2 minutesThe audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results.Pedestrians try to keep cool with handheld fans and shade in Seoul, South Korea, on Tuesday. (Jung Yeon-je/AFP/Getty Images)South Korea recorded its highest temperature on Friday since modern weather observations began, as a prolonged heat wave pushed temperatures above 40 C for a third straight day in parts of the country.The record was set in the southeastern city of Yangsan, where temperatures reached ​41.4 C at 1:40 p.m. local time, according ​to the Korea Meteorological Administration (KMA). The reading surpassed the previous national record of 41.0 C, ​set in Hongcheon in August 2018.Yangsan has now ⁠recorded temperatures ⁠above 40 C for ‌three consecutive days amid an intense heat wave affecting much of the country.The KMA has issued its highest-level heat wave warning for parts of South Gyeongsang province, ⁠including Yangsan, while heat wave advisories and warnings remain in effect across most of South Korea."KMA data records using the ASOS ‌observing system began in 1973, and the 41.4 C measured in Yangsan is the highest temperature observed in our records since then," a KMA spokesperson said.The KMA ​said the extreme heat across the country was caused by the ⁠simultaneous influence of the North Pacific High and the Tibetan ⁠High pressure systems, which have covered the Korean Peninsula ⁠like ⁠a lid, trapping ​heat and allowing temperatures to build across much of the ​country while limiting ⁠cloud cover.Forecasters are also monitoring Typhoon Dolphin in the western Pacific, whose eventual track could influence weather conditions over the Korean Peninsula next week, although its impact on the ongoing ⁠heat wave remains uncertain.