Seoul Weather in August

South Korea · August climate averages and travel tips

Avg high29°C (83°F)
Avg low22°C (72°F)
Rainfall251 mm (9.9 in)
RatingPoor 4/10

Seoul in August sees daytime temperatures around 29°C (83°F), dropping to about 22°C (72°F) at night. August is summer in South Korea. The month is very wet, with about 251 mm (9.9 in) of rain spread over 18 days, making it the second wettest month of the year. Humidity averages 83%, so it feels sticky and hotter than the thermometer suggests. You get roughly 13.4 hours of daylight and frequently cloudy skies.

Is August a good time to visit Seoul?

August is not the best time to visit Seoul (4/10) mainly because of the rain. The weather is much better in May and October.

Visiting Seoul in August

Hot, humid and rainy

August feels sticky in Seoul, with warm nights and frequent showers. Rain can interrupt a walk through Bukchon Hanok Village or a hike up Namsan, and paths may get slippery. The month gets 251 mm of rain across 18 days, so outdoor plans can be hard to rely on.

You'll still find plenty to do between showers. Browse the shops and cafés in Insadong, or duck into the National Museum of Korea. For a cool meal, try naengmyeon, cold noodles popular in summer.

August events and crowds

Liberation Day, or Gwangbokjeol, falls on August 15. It marks Korea's liberation from Japanese rule, and you may see flags and ceremonies around the city, including near Seodaemun Prison History Hall.

If you hate crowds, avoid assuming Seoul will be quiet just because the weather is uncomfortable. Korean school holidays make August a busy time for family outings, and popular sights and hotels can feel more crowded than in September. Prices may also be higher than in calmer months such as May or October, especially around the summer holiday period.

Make the weather work for you

August isn't the easiest month for long walks or a packed day outdoors. Keep palace visits, market wandering and Namsan plans flexible, and use rainy spells for indoor sights. The weather is much wetter than September, which is also cooler.

Travelling with kids? Pair a short outdoor visit with an indoor stop rather than spending the whole day in the heat. Around Gyeongbokgung, you can visit the palace when the rain eases, then head to the nearby National Folk Museum for a break from the weather.

August weather at a glance

Average high29°C (83°F)
Average low22°C (72°F)
Daily mean25°C (78°F)
Rainfall251 mm (9.9 in)
Rainy days (1 mm+)18
Humidity83%
Cloud cover64%
Daylight13.4 hours
Est. sunshine5.3 hours/day
Wind9.2 km/h
vs July1°C warmer than July, with 109 mm less rain.

What to pack for Seoul in August

Seoul weather in other months

Jan1°C / -7°C18 mmPoorFeb4°C / -5°C28 mmPoorMar9°C / 0°C44 mmFairApr16°C / 5°C66 mmExcellentMay21°C / 11°C90 mmExcellentJun26°C / 17°C131 mmGoodJul28°C / 21°C360 mmPoorAug29°C / 22°C251 mmPoorSep25°C / 17°C146 mmFairOct19°C / 10°C61 mmExcellentNov11°C / 3°C54 mmGoodDec3°C / -4°C25 mmPoor

← JulyBest time to visit SeoulSeptember →

Better weather in August nearby

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