Seoul weather in September (South Korea)

Can you expect sunny skies in Seoul in September? Want to know if this month is ideal for visiting? Our guide provides detailed weather information.

Temperatures

The month of September in Seoul typically brings high temperatures and high rainfall. Daytime temperatures generally peak at 27°C, but after sunset, they often decrease to around 17°C.

Precipitation

Seoul in September usually receives high rainfall, averaging around 128 mm for the month. Climate statistics over the past 30 years suggest around 9 days of rain.

Average sunshine

With about 182 hours of sunshine, the area enjoys a nice balance of sun and clouds, creating a pleasant environment.

If your ideal day consists of dry skies and moderate temperatures May and October generally stand out with the best circumstances. While January, July, August and December tend to showcase less optimal conditions.

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

 

Seoul, monthly averages in September

Min Temperature 17°C  

Max Temperature 27°C  

Chance of Rain 29%  

Precipitation 128 mm  

Rainy days 9 days  

Humidity 67%  

Windspeed 7 km/h  

Sunshine 182 hours  

Percentage Sunshine 48%  

Where to go in South Korea in September

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

Weather conditions Weather

Temperatures

Precipitation

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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°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

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.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Interested in more climate information?

This site 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 travel conditions. Find out where to go with our weather planner.