Heat Wave Continues Despite Seasonal Change; Seoul to Reach 33 Degrees

by Shin Hye An Posted : August 22, 2026, 19:44Updated : August 22, 2026, 19:44

Despite the seasonal change known as 'Chuseo' on the 23rd, daytime temperatures are expected to reach 35 degrees Celsius, continuing the heat wave. Scattered showers are forecasted in parts of southern Gyeonggi and Chungnam.


On the 22nd, a strong rain cloud system developed over the West Sea, bringing heavy rain to the capital region and Gangwon. In Gapyeong, Gyeonggi Province, 52mm of rain fell in just one hour, prompting a heavy rain warning, while a rain advisory was issued for Chuncheon, Gangwon.


While the heat eased somewhat in the central region due to the rain, southern areas continued to experience extreme temperatures. Seoul recorded a high of 26.5 degrees, while Jeonju reached 35.5 degrees and Miryang hit 34.8 degrees.


By the evening, scattered showers are expected across the country, with 5 to 60mm of rain anticipated. In northeastern Gyeonggi and inland Gangwon, showers may continue into the early hours of the 23rd.


On the 23rd, unstable atmospheric conditions will lead to more scattered showers in some areas. Southern Gyeonggi, Chungnam, and western Jeonbuk are expected to see 5 to 40mm of rain, while Jeju's mountainous regions may receive 5 to 30mm. Due to the nature of these showers, rainfall amounts may vary significantly by location, with possible gusts and thunderstorms.


Morning lows on the 23rd are forecasted to be between 22 and 26 degrees, with daytime highs ranging from 30 to 35 degrees. Seoul is expected to start at 25 degrees and peak at 33 degrees, while Yangsan may reach a high of 35 degrees.


Heat advisories have been issued for the Chungcheong region, southern areas, and Jeju, with most regions experiencing a feels-like temperature around 33 degrees. In the south, the feels-like temperature may rise to around 35 degrees.


Overnight lows are expected to remain above 25 degrees, leading to tropical nights in some areas. After the rain or showers, high humidity will contribute to a return of the heat.


The late summer heat is expected to persist into next week. According to Yonhap News, from the 24th to the 28th, the feels-like temperature across most regions will hover around 33 degrees, with southern areas potentially reaching 35 degrees. Tropical nights may also occur.


On Monday, the 24th, scattered showers are expected in the inland areas of Jeonbuk, Jeonnam, southern Daegu, and western Gyeongnam from the afternoon into the evening. Expected rainfall amounts are between 5 and 50mm, with possible gusts and thunderstorms.


From Tuesday, the 25th, the weather will generally be cloudy or clear across the country. Morning lows next week are expected to be between 20 and 26 degrees, with daytime highs ranging from 28 to 34 degrees, which is above the average morning temperatures of 19 to 23 degrees and daytime highs of 27 to 30 degrees.


Meanwhile, strong wind advisories are in effect for the western coast of Chungnam, the southern coast of Jeonnam, and the mountainous areas of Jeju, with gusts exceeding 25 meters per second expected until the night of the 22nd.





* This article has been translated by AI.