Seoul recorded a daytime high of 33.2 °C on June 15, marking the hottest temperature in the city so far this year [1].
The sudden spike in temperature occurs well before the typical peak of summer, raising concerns about public health and energy demand as the city prepares for a potential heat-wave warning.
High humidity following a brief shower contributed to the temperature surge. According to YTN, the city's maximum temperature surpassed previous records for the year in a single day [3]. While one report initially listed the high at 32.1 °C [3], subsequent reports from YTN and MSN confirmed the peak at 33.2 °C [1].
Nighttime conditions remained oppressive, with perceived temperatures climbing to nearly 25 °C [1]. This trend has created a phenomenon similar to tropical nights, where heat lingers long after sunset.
"Seoul's daytime temperature exceeded 33 degrees, making it the hottest day of the year," a YTN anchor said [2].
Reporter Jung Hye-yoon of YTN said that the city reached this new yearly high in just one day [3]. The combination of intense sun and humidity has pushed the city toward its first official heat-wave warning, which may be issued tomorrow [1].
"During the night, the perceived temperature will rise to nearly 25 degrees, and the nighttime heat, like tropical nights, will be severe," the YTN anchor said [2].
Residents have been seen utilizing handheld fans and umbrellas to cope with the intense solar radiation as the city enters this early period of extreme heat [1].
“Seoul recorded a daytime high of 33.2 °C on June 15, marking the hottest temperature in the city so far this year.”
The arrival of 33.2 °C temperatures in mid-June suggests an accelerated onset of the summer heat season in South Korea. When extreme daytime highs are paired with 'tropical night' conditions, where nighttime temperatures remain high, the human body has less opportunity to recover from heat stress, increasing the risk of heat-related illnesses and putting early pressure on the city's electrical grid for cooling.
