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South Korea weather

Weather in Seoul for January 2026

Your guide to Seoul weather in January - trends and predictions

    Snow Forecast ❄️

  • Seoul typically experiences moderate snowfall in January, with an average of 9 snowy days.
    According to Seoul snow forecast for January 2026, no snow is expected until the end of the month.

    • Temperatures

  • Until now, January 2026 in Seoul is slightly cooler than the historical average by -1.8 °C.

  • The forecast for the next days in Seoul predicts the temperature to be 3.4 °C, significantly warmer than the historical average.

  • In general, the average temperature in Seoul at the beginning of January is 1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of -0.6 °C by the end of January.

Average dry days
19
Dry days
Average rainy days
3
Rainy days
Average snowy days
9
Snow days
Average temperatures
1°/-4°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
52 %
Avg humidity

Seoul Weather January

Move between months or click on a day
December
February
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Overcast
2°
2
Sunny
1°
3
Overcast
0°
4
Sunny
1°
5
Sunny
2°
6
Cloudy
1°
7
Sunny
0°
8
Overcast
-1°
9
Overcast
0°
10
Overcast
1°
11
Sunny
1°
12
Cloudy
2°
13
Sunny
3°
14
Sunny
2°
15
Patchy rain possible
3°
16
Sunny
2°
17
Cloudy
1°
18
Sunny
2°
19
Overcast
2°
20
Sunny
3°
21
Sunny
2°
22
Overcast
2°
23
Cloudy
2°
24
Sunny
2°
25
Overcast
2°
26
Partly cloudy
3°
27
Overcast
1°
28
Sunny
-3°
29
Sunny
-2°
30
Partly cloudy
-4°
31
Sunny
-1°

Temperatures trend during January in Seoul

See the weather trend as well as the moving average line

January weather in Seoul day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
1 Jan. Overcast
Overcast
 2° /-5° 0 mm 0 cm
2 Jan. Sunny
Sunny
 1° /-5° 0 mm 0 cm
3 Jan. Overcast
Overcast
 0° /-5° 0.1 mm 0 cm
4 Jan. Sunny
Sunny
 1° /-4° 0 mm 0 cm
5 Jan. Sunny
Sunny
 2° /-3° 2.4 mm 1.1 cm
6 Jan. Cloudy
Cloudy
 1° /-4° 0.8 mm 0.6 cm
7 Jan. Sunny
Sunny
 0° /-6° 0.2 mm 0.1 cm
8 Jan. Overcast
Overcast
 -1° /-7° 0 mm 0 cm
9 Jan. Overcast
Overcast
 0° /-6° 0.7 mm 0.6 cm
10 Jan. Overcast
Overcast
 1° /-6° 0.5 mm 0 cm
11 Jan. Sunny
Sunny
 1° /-6° 0.1 mm 0 cm
12 Jan. Cloudy
Cloudy
 2° /-6° 0.5 mm 0.3 cm
13 Jan. Sunny
Sunny
 3° /-4° 3.8 mm 0 cm
14 Jan. Sunny
Sunny
 2° /-4° 1.3 mm 0 cm
15 Jan. Patchy rain possible
Patchy rain possible
 3° /-3° 0.9 mm 0 cm
16 Jan. Sunny
Sunny
 2° /-4° 0 mm 0 cm
17 Jan. Cloudy
Cloudy
 1° /-4° 0.3 mm 0 cm
18 Jan. Sunny
Sunny
 2° /-5° 0.4 mm 0 cm
19 Jan. Overcast
Overcast
 2° /-4° 0.8 mm 0.1 cm
20 Jan. Sunny
Sunny
 3° /-5° 0.1 mm 0 cm
21 Jan. Sunny
Sunny
 2° /-5° 1.6 mm 0.8 cm
22 Jan. Overcast
Overcast
 2° /-5° 0.1 mm 0 cm
23 Jan. Cloudy
Cloudy
 2° /-5° 0.1 mm 0.1 cm
24 Jan. Sunny
Sunny
 2° /-6° 0 mm 0 cm
25 Jan. Overcast
Overcast
 2° /-6° 0.2 mm 0 cm
26 Jan. Partly cloudy
Partly cloudy
 3° /-3° 0.4 mm 0 cm
27 Jan. Overcast
Overcast
 1° /-4° 2.4 mm 1.5 cm
28 Jan. Sunny
Sunny
 -3° /-8° 0 mm 0 cm
29 Jan. Sunny
Sunny
 -2° /-7° 0 mm 0 cm
30 Jan. Partly cloudy
Partly cloudy
 -4° /-9° 0 mm 0 cm
31 Jan. Sunny
Sunny
 -1° /-7° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Seoul in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Seoul forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Seoul in January - FAQ

What are the expected maximum and minimum temperatures in Seoul during January?

Brace for cold days with temperatures not exceeding 1° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Seoul during January?

In January, Seoul can expect light to moderate rainfall, totaling 21.8 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Seoul in January 2026?

Seoul experiences an average snowfall of 6.458 cm during January, occurring over 9 days.

What are the typical wind conditions in Seoul during January?

The average wind speed in Seoul during January is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

Seoul snow forecast January 2026

Track daily snowfall levels and discover Seoul’s snowy potential this January ❄️
On average, Seoul sees 9 snowy days during January, with approximately 6.5 cm of total snowfall.

January rainfall patterns in Seoul

Explore the daily rainfall trends and prepare for Seouls January weather 💧
Typically, Seoul has 3 rainy days in January with a total of 21.8 mm of rainfall.
Provinces in Seoul
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Jung-gu
Top locations in Seoul
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Myeong-dong
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Location coordinates Where is Seoul?

Get accurate weather forecasts for Seoul, located at latitude 37.566 and longitude 126.978. Stay updated with localized weather information tailored for Seoul.

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