Seoul’s daytime temperature reached 31.5 °C on Thursday, marking the highest temperature recorded in the city so far this year [1].
This sudden spike in temperature signals an early arrival of summer heat, potentially impacting energy demand and public health as the region adjusts to unseasonably warm conditions.
According to the Korea Meteorological Administration (KMA), the heat is expected to continue until the early part of next week, approximately May 20 [1]. Forecaster Kang Hye-mi said the conditions are driven by a high-pressure ridge over the Korean Peninsula.
The heat wave is characterized by clear skies and strong sunlight. Southerly winds crossing the Taebaek Mountains have further contributed to the hot and dry environment [1].
While Seoul experienced significant warmth, other regions saw varying results. Yeoju recorded a maximum temperature of 33.3 °C [1]. Wonju also reached 31.5 °C [1]. In contrast, coastal areas remained cooler, with Sokcho at 17.4 °C and Gangneung at 19.7 °C [1]. The Daegu region saw temperatures around 25 °C [1].
YTN reporter Kim Min-kyung and KMA officials said that the atmospheric pressure remains high in the upper layers of the atmosphere [1]. This stability is trapping heat near the surface, prolonging the current weather pattern.
Residents are advised to prepare for continued warmth as the region transitions into the summer season. The KMA continues to monitor the high-pressure system to determine if the heat will extend beyond the current forecast [1].
“Seoul’s daytime temperature reached 31.5 °C, marking the highest temperature recorded in the city so far this year.”
The arrival of peak temperatures in mid-May suggests a shift in seasonal norms for the Korean Peninsula. When high-pressure ridges lock in place early in the year, it can lead to prolonged dry spells and increased vulnerability to early-season wildfires or agricultural stress before the traditional monsoon rains arrive.
