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Weather in Seoul for December 2025

Your guide to Seoul weather in December - trends and predictions

    Snow Forecast ❄️

  • Seoul typically experiences moderate snowfall in December, with an average of 7 snowy days.

    • Temperatures

  • In general, the average temperature in Seoul at the beginning of December is 5.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 1.4 °C by the end of December.

Average dry days
22
Dry days
Average rainy days
2
Rainy days
Average snowy days
7
Snow days
Average temperatures
3°/-3°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
54 %
Avg humidity

Seoul Weather December

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

Temperatures trend during December in Seoul

See the weather trend as well as the moving average line

December weather in Seoul day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Sunny
Sunny
 3° /-2° 0.3 mm 0 cm
2 Dec. Overcast
Overcast
 6° /-2° 0.1 mm 0 cm
3 Dec. Partly cloudy
Partly cloudy
 4° /-1° 0.7 mm 0 cm
4 Dec. Overcast
Overcast
 4° /-2° 0 mm 0 cm
5 Dec. Sunny
Sunny
 7° /-1° 0 mm 0 cm
6 Dec. Overcast
Overcast
 6° /0° 0.4 mm 0 cm
7 Dec. Overcast
Overcast
 8° /0° 0 mm 0 cm
8 Dec. Overcast
Overcast
 9° /1° 0 mm 0 cm
9 Dec. Overcast
Overcast
 9° /2° 0 mm 0 cm
10 Dec. Patchy rain possible
Patchy rain possible
 9° /2° 0.1 mm 0 cm
11 Dec. Overcast
Overcast
 8° /2° 1.9 mm 0 cm
12 Dec. Partly cloudy
Partly cloudy
 5° /0° 0.4 mm 0 cm
13 Dec. Overcast
Overcast
 4° /-3° 0.9 mm 0.1 cm
14 Dec. Partly cloudy
Partly cloudy
 2° /-3° 2.3 mm 0 cm
15 Dec. Overcast
Overcast
 3° /-2° 3.7 mm 0.4 cm
16 Dec. Light snow showers
Light snow showers
 2° /-5° 0.5 mm 0.4 cm
17 Dec. Light freezing rain
Light freezing rain
 -1° /-7° 0.1 mm 0 cm
18 Dec. Overcast
Overcast
 -2° /-7° 0.7 mm 0.3 cm
19 Dec. Cloudy
Cloudy
 0° /-5° 0.3 mm 0.2 cm
20 Dec. Overcast
Overcast
 2° /-5° 0.2 mm 0.1 cm
21 Dec. Sunny
Sunny
 2° /-4° 1.7 mm 1.1 cm
22 Dec. Cloudy
Cloudy
 0° /-6° 0 mm 0 cm
23 Dec. Overcast
Overcast
 1° /-5° 0.1 mm 0 cm
24 Dec. Sunny
Sunny
 1° /-6° 0.2 mm 0.1 cm
25 Dec. Sunny
Sunny
 0° /-6° 0.4 mm 0.3 cm
26 Dec. Partly cloudy
Partly cloudy
 2° /-6° 0 mm 0 cm
27 Dec. Cloudy
Cloudy
 2° /-5° 0 mm 0 cm
28 Dec. Overcast
Overcast
 3° /-3° 0 mm 0 cm
29 Dec. Cloudy
Cloudy
 2° /-4° 0.1 mm 0 cm
30 Dec. Overcast
Overcast
 1° /-5° 0.7 mm 0 cm
31 Dec. Sunny
Sunny
 0° /-6° 0.5 mm 0 cm
Next
Important Notice
Our weather forecast for Seoul in December 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.
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Seoul in December - FAQ

What are the expected maximum and minimum temperatures in Seoul during December?
Brace for cold days with temperatures not exceeding 3° 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 December?
Expect minimal rainfall in Seoul during December, with a total of 16.5 mm over approximately 2 days. This minimal precipitation is unlikely to significantly impact plans.
Will it snow in Seoul in December 2025?
Seoul experiences an average snowfall of 3.083 cm during December, occurring over 7 days.
What are the typical wind conditions in Seoul during December?
The average wind speed in Seoul during December is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

Seoul snow forecast December 2025

Track daily snowfall levels and discover Seoul’s snowy potential this December ❄️

December rainfall patterns in Seoul

Explore the daily rainfall trends and prepare for Seouls December weather 💧
Provinces in Seoul
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Jung-gu
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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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