South KoreaThe climate of Seoul
The current climate in Seoul features temperatures ranging from a high of 31°C to a low of 6°C throughout the year. The average yearly temperature is around 20°C. At night, temperatures in the colder months average around -5°C and in the warmer months around 23°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Seoul, South Korea.
Temperature records
The highest temperature recorded in Seoul in recent years was 39°C in August 2018. The lowest daytime temperature recorded was -12°C in January 2021.
Precipitation and snowfall
On average, Seoul gets 1568 mm of precipitation each year. Of this, about 12 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
Curious about the weather in other parts of South Korea? Check out the climate and weather for spots like Busan, or explore other destinations in South Korea.
Best time to visit Seoul?
The best time to visit Seoul for mild to warm weather is April up to June, September and October. You might get some rain, but the temperatures are just right to explore Seoul.
Find affordable trips to Seoul
Climate Table of Seoul
The climate table of Seoul shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 6 | 6 | 14 | 20 | 26 | 28 | 31 | 31 | 27 | 21 | 14 | 6 |
| Temp. min (°C) | -5 | -3 | 1 | 8 | 13 | 19 | 22 | 23 | 18 | 10 | 4 | -4 |
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| Precipitation (mm) | 31 | 39 | 94 | 145 | 87 | 107 | 267 | 413 | 149 | 108 | 98 | 30 |
| Snow (cm) | 4,8 | 1,0 | 0,9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0,9 | 3,5 |
| UV Index | 4 | 6 | 7 | 8 | 8 | 8 | 7 | 6 | 6 | 6 | 5 | 4 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Popular destinations in South Korea
Discover the climate of these popular destinations in South Korea.
Temperature charts
These charts display the average temperatures in Seoul, South Korea. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Seoul
Yearly Temperature in Seoul
Precipitation charts
These charts show the average amount of precipitation in Seoul, South Korea. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Seoul
Total Yearly Precipitation in Seoul
Average Snowfall per Month in Seoul
Total Yearly Snowfall in Seoul
UV index chart
This chart shows the average UV index per month in Seoul, South Korea. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Seoul
Weather experiences in Seoul
The weather in Seoul is rated an average of 3,6 out of 5 stars by 13 visitors. Have you been to Seoul? Share your weather experience to help other visitors.
Hans
It feels warmer than it indicates in degrees , when the sun shines it is very powerful
TinekeVery little rain and lots of sunshine!
Julian van HeeswijkAlthough the sun shone brightly, it was often interrupted by unexpected rain showers. The heat was uncomfortable at times.
Karin TitulaerFebruary in Seoul was cold, with temperatures often around freezing. Occasionally the sun shone, but mostly it was overcast. Expect real winter weather, not a sunny location.
Daan MatserAlthough the snowy landscape was beautiful, the extreme cold caused problems.
ElisaEven though the rain can be somewhat oppressive, it makes nature lush and green. The temperature is high and reasonably comfortable.
TamarDecember in Seoul is cold but picturesque, the city covered in snow. Ideal for winter lovers rather than sun worshippers. Good winter clothing is a must!
Gijsbert SpijkermanNovember in Seoul is cool but very refreshing. The golden yellow of late summer fades into winter, creating beautiful scenes. Despite the rain, we enjoyed it immensely!
Sophie KortmanWarm but not too hot, about 25 degrees. Pretty sunny, but occasionally rainy. Not exactly a seaside resort, but fine for exploring the city.
PieterAugust in Seoul can be quite humid and hot. It rained a lot during my stay, which was unfortunate, but the city itself is beautiful. I would recommend visiting at another time of year.
Iris DunninkOctober in Seoul was mild with a few rainy days. The color palette of the leaves was breathtaking. Not ideal for beach lovers, but fine for a city trip.
NovaModerate spring temperatures of 10-20 degrees are ideal for sightseeing. A few rainy days, but mostly sunny. Not a typical place for sun or winter sports, but fun.
TiesThe day was sunny with light rain. This is an ideal time for sightseeing and attending festivals. A light jacket may be needed in the evening.
Have you been to Seoul?
Share your weather experiences in Seoul.
Average weather in Seoul by month
Click on a month below to see detailed weather info for Seoul. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.