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Weather in Incheon for December 2025

Your guide to Incheon weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Cold Wave Advisory - See hour by hour.

    • Snow Forecast ❄️

  • Incheon typically experiences moderate snowfall in December, with an average of 7 snowy days.
    According to Incheon snow forecast for December 2025, 2 snowy days are expected until the end of the month. The closest date with snow is Thursday, 25 December.

    • Temperatures

  • Until now, December 2025 in Incheon is slightly cooler than the historical average by -1.1 °C.

  • Expect cooler weather in the next days in Incheon with the forecast suggesting a temperature of 5.4 °C, lower than the historical average.

  • In general, the average temperature in Incheon at the beginning of December is 6.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 1.3 °C by the end of December.

Average dry days
17
Dry days
Average rainy days
7
Rainy days
Average snowy days
7
Snow days
Average temperatures
4°/0°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
59 %
Avg humidity

Incheon Weather December

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

Temperatures trend during December in Incheon

See the weather trend as well as the moving average line

December weather in Incheon day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Sunny
Sunny
 8° /3° 1.1 mm 0 cm
2 Dec. Moderate snow
Moderate snow
 7° /-1° 0.5 mm 0.1 cm
3 Dec. Sunny
Sunny
 3° /-2° 0.2 mm 0 cm
4 Dec. Cloudy
Cloudy
 5° /-2° 0.4 mm 0 cm
5 Dec. Overcast
Overcast
 6° /2° 0 mm 0 cm
6 Dec. Light rain shower
Light rain shower
 8° /2° 1.9 mm 0 cm
7 Dec. Patchy rain possible
Patchy rain possible
 9° /3° 0 mm 0 cm
8 Dec. Sunny
Sunny
 9° /3° 0 mm 0 cm
9 Dec. Patchy rain possible
Patchy rain possible
 9° /4° 0 mm 0 cm
10 Dec. Overcast
Overcast
 9° /4° 0 mm 0 cm
11 Dec. Light rain
Light rain
 8° /3° 5.6 mm 0 cm
12 Dec. Patchy rain possible
Patchy rain possible
 5° /1° 0 mm 0 cm
13 Dec. Overcast
Overcast
 6° /2° 3.1 mm 0.9 cm
14 Dec. Light rain
Light rain
 5° /3° 5.2 mm 0 cm
15 Dec. Partly cloudy
Partly cloudy
 6° /1° 0.1 mm 0 cm
16 Dec. Patchy rain possible
Patchy rain possible
 9° /6° 0.5 mm 0 cm
17 Dec. Partly cloudy
Partly cloudy
 7° /4° 0 mm 0 cm
18 Dec. Sunny
Sunny
 6° /3° 0 mm 0 cm
19 Dec. Partly cloudy
Partly cloudy
 9° /5° 0 mm 0 cm
20 Dec. Sunny
Sunny
 11° /7° 0 mm 0 cm
21 Dec. Overcast
Overcast
 9° /6° 0 mm 0 cm
22 Dec. Patchy rain possible
Patchy rain possible
 9° /6° 5 mm 0 cm
23 Dec. Patchy rain possible
Patchy rain possible
 6° /5° 0.7 mm 0 cm
24 Dec. Sunny
Sunny
 5° /0° 0 mm 0 cm
25 Dec. Partly cloudy
Partly cloudy
 1° /-1° 0.1 mm 0.1 cm
26 Dec. Patchy rain possible
Patchy rain possible
 3° /1° 0.8 mm 0.6 cm
27 Dec. Sunny
Sunny
 -3° /-5° 0 mm 0 cm
28 Dec. Sunny
Sunny
 -2° /-5° 0 mm 0 cm
29 Dec. Cloudy
Cloudy
 3° /-2° 0 mm 0 cm
30 Dec. Partly cloudy
Partly cloudy
 3° /0° 1.3 mm 0 cm
31 Dec. Cloudy
Cloudy
 4° /-2° 0.7 mm 0 cm
Next
Important Notice
Our weather forecast for Incheon 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 Incheon forecast closer to your planned date for the most up-to-date weather information.
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Incheon in December - FAQ

What are the expected maximum and minimum temperatures in Incheon during December?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Incheon during December?
In December, Incheon can expect light to moderate rainfall, totaling 29.8 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Incheon in December 2025?
Incheon experiences an average snowfall of 2.52333 cm during December, occurring over 7 days.
What are the typical wind conditions in Incheon during December?
The average wind speed in Incheon during December is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

Incheon snow forecast December 2025

Track daily snowfall levels and discover Incheon’s snowy potential this December ❄️
On average, Incheon sees 7 snowy days during December, with approximately 2.5 cm of total snowfall.

December rainfall patterns in Incheon

Explore the daily rainfall trends and prepare for Incheons December weather 💧
Typically, Incheon has 7 rainy days in December with a total of 29.8 mm of rainfall.

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Get accurate weather forecasts for Incheon, located at latitude 37.456 and longitude 126.705. Stay updated with localized weather information tailored for Incheon.

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