The South Korean Meteorological Administration has issued a nationwide heat-wave warning as late-summer temperatures persist across most of the country [1].
This prolonged heat during the late-summer season increases the risk of heat-related illnesses and disrupts typical seasonal transitions for the region.
Daytime highs are expected to reach 33°C [1]. Weather caster Won Yi-da said, "During the day, it will rise to 33 degrees, and it will be as hot as yesterday" [1].
In Seoul, overnight low temperatures have been recorded between 25.4°C and 25.6°C [1, 2]. This temperature range raises the possibility of another tropical night, a phenomenon where overnight lows remain at or above 25°C.
Won said that based on current figures, Seoul may record a tropical night for the first time in nine to 10 days [1, 3].
The heat is driven by persistent high pressure and atmospheric instability during the late-summer period [4]. While the heat dominates, the weather team said that isolated and strong showers are expected in various inland regions [1].
Coastal areas are also facing hazards. An anchor for the YTN weather segment said that people should avoid approaching the coasts of Jeju and the southern coast due to high swells [1].
“"During the day, it will rise to 33 degrees, and it will be as hot as yesterday"”
The persistence of high-pressure systems into late August suggests a deviation from typical seasonal cooling patterns in East Asia. The recurrence of tropical nights in Seoul, combined with atmospheric instability causing inland showers, indicates a volatile weather pattern that extends the summer's peak stress on urban infrastructure and public health.
