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CLIMATE AND AVERAGE MONTHLY WEATHER IN Seoul, South Korea

The large amount of people who live and work in Seoul at only 613 kilometers help to ensure that the average temperature in the city is a few degrees higher than in the countryside which surrounds the city. This is because the buildings and streets retain the heat, an effect that is especially noticeable during the summer evenings.

Seoul has relatively cool and sometimes quite mild winters. However not every winter is the same in Seoul. Some winters there will be no days below the freezing point and other years you can experience severe frost. That same unpredictability is reflected throughout almost the entire year. In the summer months, temperatures are mainly tempered by clouds and precipitation.

From May to September you will see the most rain, with rainfall amounts rising in July and August to 300 and sometimes more than 400 millimeters per month. In this period there is also the possibility that Seoul gets hit by a hurricane. The hurricane season runs from June to December in this region.

What is the best time of year to go to Seoul in South Korea? Here are some average weather facts we collected from our historical climate data:
  • During the month of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 25 degrees Celsius (77°F).
  • On average, the warmest month(s) are July and August.
  • The months April, May and June have a high chance of precipitation.
  • Seoul has dry periods in January, February and December.
  • On average, the warmest month is August.
  • On average, the coolest month is January.
  • July is the wettest month. This month should be avoided if you are not a big fan of rain.
  • December is the driest month.
Do these climate conditions match with when you want to go to Seoul in South Korea? Find out where to stay here.

For more information, see the weather forecast and our average climate information (by month in graphs) in a beautiful overview below.

* Data from nearest weather station: Seoul, South Korea (0.0 KM).

Average minimum and maximum temperature over the year

The monthly mean minimum and maximum daily temperature. Show in Fahrenheit »
Average min and max temperatures in Seoul, South Korea   Copyright © 2019 www.weather-and-climate.com
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Average monthly hours of sunshine over the year

This is the monthly total of sunhours
Average monthly sunhours in Seoul, South Korea   Copyright © 2019 www.weather-and-climate.com
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Average percent of sunshine over the year

This is the mean percent of sunhours during the day

Average percent of sunshine in Seoul, South Korea   Copyright © 2019 www.weather-and-climate.com

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Cheapest month to fly to Seoul

Average monthly precipitation over the year (rainfall, snow)

This is the mean monthly precipitation, including rain, snow, hail etc. Show in Inches »
Average precipitation (rain/snow) in Seoul, South Korea   Copyright © 2019 www.weather-and-climate.com
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Average monthly rainy days over the year

This is the number of days each month with rain, snow, hail etc.
Average rainy days (rain/snow) in Seoul, South Korea   Copyright © 2019 www.weather-and-climate.com
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Average humidity over the year

This is the mean monthly relative humidity
Average relative humidity in Seoul, South Korea   Copyright © 2019 www.weather-and-climate.com
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Average wind speed over the year

This is the mean monthly wind speed (meters per second)
Average wind speed in Seoul, South Korea   Copyright © 2019 www.weather-and-climate.com
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Where to stay in Seoul

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