Start with the date
Ask with a city and date, such as “Seoul on October 15.” Separate general seasonal guidance from the actual forecast available closer to departure.
Plan for morning and evening
Check the daily low as well as the high. Bring an easy-to-remove layer and comfortable walking shoes; add an umbrella and spare socks if rain is forecast.
Have an indoor option
Save indoor options such as HiKR Ground or Starfield Library at COEX. Check opening and outdoor sections of the journey; reconsider your plans if weather alerts are issued.
HiKR Ground · 하이커 그라운드
40 Cheonggyecheon-ro, Jung-gu, Seoul · 서울 중구 청계천로 40
Starfield Library · 별마당도서관
513 Yeongdong-daero, Gangnam-gu, Seoul · 서울 강남구 영동대로 513
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Sources checked: 2026-09-27