Seoul
December
Weather in Seoul for December 2025
Your guide to Seoul weather in December - trends and predictions
Cold Wave Advisory - See hour by hour.
Seoul typically experiences moderate snowfall in December, with an average of 7 snowy days.
According to Seoul snow forecast for December 2025, 3 snowy days are expected until the end of the month. The closest date with snow is Thursday, 25 December.Until now, December 2025 in Seoul is slightly cooler than the historical average by -1.5 °C.
The forecast for the next days in Seoul predicts temperatures to be around 5 °C, close to the historical average.
In general, the average temperature in Seoul at the beginning of December is 5.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 0.3 °C by the end of December.
Official Weather Alert ⚠️
Snow Forecast ❄️
Temperatures
22
Dry days
2
Rainy days
7
Snow days
3°/-3°
Temperatures
14 km/h
Avg max wind
54 %
Avg humidity
Seoul Weather December
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Temperatures trend during December in Seoul
See the weather trend as well as the moving average line
December weather in Seoul day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | 5° /-1° | 0.2 mm | 0 cm | |
| 2 Dec. |  Overcast | 6° /-3° | 0.1 mm | 0 cm | |
| 3 Dec. |  Light freezing rain | 3° /-2° | 0.6 mm | 0 cm | |
| 4 Dec. | Overcast | 3° /-3° | 0.2 mm | 0.1 cm | |
| 5 Dec. | Sunny | 5° /-1° | 0 mm | 0 cm | |
| 6 Dec. | Overcast | 6° /0° | 0.5 mm | 0 cm | |
| 7 Dec. | Overcast | 9° /1° | 0 mm | 0 cm | |
| 8 Dec. | Overcast | 8° /1° | 0 mm | 0 cm | |
| 9 Dec. | Overcast | 8° /2° | 0 mm | 0 cm | |
| 10 Dec. | Overcast | 8° /2° | 0.1 mm | 0 cm | |
| 11 Dec. |  Light rain | 8° /2° | 2.5 mm | 0 cm | |
| 12 Dec. |  Partly cloudy | 5° /0° | 0.3 mm | 0 cm | |
| 13 Dec. | Overcast | 4° /-2° | 2.3 mm | 0.6 cm | |
| 14 Dec. | Partly cloudy | 2° /-3° | 2.3 mm | 0 cm | |
| 15 Dec. | Partly cloudy | 4° /-1° | 0 mm | 0 cm | |
| 16 Dec. | Overcast | 9° /3° | 0.1 mm | 0 cm | |
| 17 Dec. | Partly cloudy | 8° /3° | 0 mm | 0 cm | |
| 18 Dec. | Sunny | 8° /2° | 0 mm | 0 cm | |
| 19 Dec. | Sunny | 9° /2° | 0 mm | 0 cm | |
| 20 Dec. | Sunny | 12° /5° | 0 mm | 0 cm | |
| 21 Dec. |  Cloudy | 8° /5° | 0 mm | 0 cm | |
| 22 Dec. |  Moderate rain | 9° /5° | 5.2 mm | 0 cm | |
| 23 Dec. |  Patchy rain possible | 6° /3° | 0.5 mm | 0 cm | |
| 24 Dec. | Sunny | 4° /0° | 0 mm | 0 cm | |
| 25 Dec. | Partly cloudy | 2° /-1° | 0.1 mm | 0 cm | |
| 26 Dec. | Light freezing rain | 2° /0° | 0.1 mm | 0.1 cm | |
| 27 Dec. | Sunny | -3° /-7° | 0 mm | 0 cm | |
| 28 Dec. | Sunny | -2° /-7° | 0 mm | 0 cm | |
| 29 Dec. | Cloudy | 2° /-4° | 0.1 mm | 0 cm | |
| 30 Dec. | Overcast | 1° /-5° | 0.7 mm | 0 cm | |
| 31 Dec. | 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.
Change Month
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 ❄️
On average, Seoul sees 7 snowy days during December, with approximately 3.1 cm of total snowfall.
December rainfall patterns in Seoul
Explore the daily rainfall trends and prepare for Seouls December weather 💧
Typically, Seoul has 2 rainy days in December with a total of 16.5 mm of rainfall.
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