Seoul was cloudy at 22.5°C in the Korea Meteorological Administration’s 3 p.m. observation on October 3. With a large day–night temperature swing, an extra layer is useful for a late return.
The timestamp matters
This is a Seoul observation at 3 p.m. Korea time, not the day’s high or an evening forecast. Conditions vary by location. Check the weather agency’s local information before travelling to another city or heading to an outdoor event.
Dress for the journey home, too
KBS’s October 3 morning weather report highlighted a chilly start and a wide temperature range. A removable outer layer is practical for a walk or event that continues into the evening. The linked video is the morning bulletin; the temperature in this article is the 3 p.m. observation.
![[날씨] 개천절 아침. 어제만큼 쌀쌀…큰 일교차 유의 / KBS 2026.10.03.](https://i.ytimg.com/vi/D4w6cmt7o6o/maxresdefault.jpg)