Seoul Weather in August: What to Expect
In August, Seoul averages highs of 29.2°C and lows of 22.4°C, with about 15 rainy days (~255 mm). Verdict: Wet season — plan around rain — ~15 rainy days this month. That makes it the 4th hottest of South Korea's 6 main cities this month.
Seoul vs other South Korea cities in August
South Korea is not one climate. In August, Gyeongju runs to 30.4°C while Sokcho sits at 27.6°C — a 3°C spread. Here is where Seoul falls:
What to pack for Seoul in August
With highs near 29.2°C and lows around 22.4°C, pack light summer clothing plus a thin layer for evenings, a compact umbrella or rain shell.
What to do in Seoul in August
With 29.2°C midday highs, start outdoor sights early and keep afternoons for shaded or indoor stops. Top sights:
Public holidays in South Korea, August
- 2026-08-17 — Liberation Day
- 2027-08-16 — Liberation Day
Seoul in August — FAQs
What is the weather like in Seoul in August?
In August, Seoul averages daytime highs of 29.2°C and overnight lows around 22.4°C, with roughly 15 rainy days and about 255 mm of rain across the month. Wet season — plan around rain — ~15 rainy days this month.
Is August a good time to visit Seoul?
Wet season — plan around rain. Plan outdoor sights for early morning and keep midday for indoor or shaded activities. Among South Korea's cities, Seoul is the 4th hottest this month.
What should I pack for Seoul in August?
For August (22.4–29.2°C), pack light summer clothing plus a thin layer for evenings, a compact umbrella or rain shell.
What is there to do in Seoul in August?
Seoul's main sights include Changdeokgung, Gyeongbokgung, Hwaseong Fortress, Namsan Seoul Tower. Time outdoor sites for early morning given the midday heat.
Are there public holidays in South Korea in August?
Yes — Liberation Day (2026-08-17), Liberation Day (2027-08-16). Sites can be busier or closed around these dates.
Seoul weather by month: