Seoul weather in August (South Korea)

What can you expect from the weather in Seoul during August? Wondering if it's a favorable time for a visit? This page provides detailed information on the weather conditions for that month.

In August, the weather in Seoul generally has very high temperatures and heavy rainfall. August falls within the summer season. Daytime temperatures hover around 31°C (show in °F), while nights can cool down to about 22°C. On average, it is the warmest month of the year. So be prepared and pack summer clothes. Embrace the warmth, but always stay equipped with your summer essentials to make the most of this toasty month.

Seoul in August usually receives heavy rainfall, averaging around 260 mm (show in inches) for the month. Typically around 13 days of rainfall is expected.

The area experiences a moderate amount of sunshine, with approximately 154 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If you prefer dry weather with pleasant temperatures, August may not be the ideal month to visit Seoul. May and October typically offer the most favorable weather. In contrast, January, July, August and December tend to have less favorable conditions.

For an in-depth look at the yearly weather and climate conditions, visit our specialized Seoul climate page with graphs.


Seoul, monthly averages in August

Show in Fahrenheit
Min Temperature 22.3°C  
Max Temperature 30.5°C  
Chance of Rain 45%  
Precipitation 260 mm  
Rainy days 13 days  
Humidity 74%  
Windspeed 7 km/h  
Sunshine 154 hours  
Percentage Sunshine 36%  

Where to go in South Korea in August

Find out more about the weather in South Korea in August and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So, what should you wear in Seoul in August?

​ It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case. ​ ​

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in August.

Outdoor sports

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Seoul.

Our site offers climate and forecast data for every country in the world. Are you going to South Korea? On this website you can find historical weather averages for many cities in South Korea. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.