Month guide · Seoul · South Korea
Seoul in August
What August is really like in Seoul: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: *Youngjin, CC BY-SA 4.0
Quick answer
August is a quieter month with trade-offs. Expect average highs of 30°C (86°F), lows of 23°C (73°F), about 15 rainy days and roughly 13.6 hours of daylight. The hottest month, with lingering monsoon rain early on; school holidays fill Lotte World and the river parks.
Key facts
- Average high / low
- 30°C (86°F) / 23°C (73°F)
- Rainy days
- About 15
- Daylight
- About 13.6 hours
- Crowds
- Busy
- Hotel prices
- High
Weather in August
August is the warmest month in Seoul: days average 30°C (86°F) against a yearly average high of 17°C (63°F), and nights fall to about 23°C (73°F). Rain falls on roughly 15 of its 31 days. Compared with July (29°C (84°F)), August is about as warm; by September highs drop to around 26°C (79°F).
- Sunrise (15 August)
- About 05:48
- Sunset (15 August)
- About 19:25
- Daylight
- About 13.6 hours
Summer (June–August). Hot and humid, with the jangma monsoon bringing heavy rain from late June through July; river parks and night markets come alive.
Crowds and prices
On a 1–5 scale, August rates 4 for crowds (the peak is April at 5) and 4 for hotel prices (highest in October). Book accommodation early: August is one of the pricier months.
Events in August
August has no major recurring festival in Seoul, which usually means easier bookings.
What to do in August
With frequent rain, plan around indoor sights and keep outdoor time flexible.
Palace · City Hall
Deoksugung Palace
Opposite City Hall, Deoksugung mixes wooden Joseon halls with Western-style stone buildings from the Korean Empire era, including Seokjojeon, now a museum.
- Time needed
- 1 hour
- Cost
- Low cost
- History
- Architecture
- Couples
- After dark
Market · Jongno
Gwangjang Market
Sit at a counter with a pancake and a bowl of makgeolli; go mid-afternoon on a weekday to avoid the evening crush.
- Time needed
- 1–2 hours
- Cost
- Low cost
- Food
- Iconic
- Rainy day
- Shopping
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Museum · Yongsan
National Museum of Korea
Korea's largest museum covers the peninsula from the Paleolithic to the Joseon dynasty, with gold crowns from the Silla kingdom, Goryeo celadon and a ten-storey marble pagoda in the main hall.
- Time needed
- 2–3 hours
- Cost
- Free
- Free
- History
- Art
- Rainy day
- Kids
Museum · Yongsan
War Memorial of Korea
Combine it with the National Museum of Korea, about 15 minutes away by subway or taxi.
- Time needed
- 2 hours
- Cost
- Free
- Free
- History
- Kids
- Rainy day
What to pack
For highs near 30°C, lows near 23°C and 15 wet days: light, breathable clothes, a sun hat and high-factor sunscreen; a compact umbrella and waterproof shoes — rain is frequent; comfortable walking shoes.
Is August a good time to visit Seoul?
A quieter month with trade-offs. If your dates are flexible, April–May and September–November are better overall. Compare every month.
Seoul in other months
Questions travellers ask
+Is August a good time to visit Seoul?
It is a quieter month with trade-offs. The hottest month, with lingering monsoon rain early on; school holidays fill Lotte World and the river parks.
+How warm is Seoul in August?
Average highs are around 30°C (86°F) and lows around 23°C (73°F).
+Does it rain a lot in Seoul in August?
Expect rain on about 15 days of the month, so pack for wet weather.