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Weather in Cheonan for December 2025

Your guide to Cheonan weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Heavy Snow Advisory - See hour by hour.

    • Snow Forecast ❄️

  • Snowfall in Cheonan during December is quite rare, with fewer than 2 snowy days on average.
    According to Cheonan snow forecast for December 2025, 1 snowy day is expected until the end of the month at Saturday, 27 December.

    • Temperatures

  • Until now, December 2025 in Cheonan has been nearly identical to the historical average, with a temperature of 5 °C (showing only a slight deviation of -0.5 °C).

  • The forecast for the next days in Cheonan predicts temperatures to be around 6 °C, close to the historical average.

  • In general, the average temperature in Cheonan at the beginning of December is 5.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 2.1 °C by the end of December.

    • Rain 🌧️

  • With an average of 5 rainy days, Cheonan experiences minimal rainfall in December.

Average dry days
25
Dry days
Average rainy days
5
Rainy days
Average snowy days
1
Snow days
Average temperatures
4°/-2°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
66 %
Avg humidity

Cheonan Weather December

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

Temperatures trend during December in Cheonan

See the weather trend as well as the moving average line

December weather in Cheonan day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Patchy rain possible
Patchy rain possible
 9° /2° 2.2 mm 0 cm
2 Dec. Patchy rain possible
Patchy rain possible
 9° /-1° 0.1 mm 0 cm
3 Dec. Overcast
Overcast
 1° /-4° 1.9 mm 1.3 cm
4 Dec. Overcast
Overcast
 3° /-4° 0.4 mm 0.3 cm
5 Dec. Cloudy
Cloudy
 5° /-2° 0 mm 0 cm
6 Dec. Overcast
Overcast
 5° /-2° 0.2 mm 0 cm
7 Dec. Overcast
Overcast
 8° /0° 0.1 mm 0 cm
8 Dec. Sunny
Sunny
 5° /-1° 0 mm 0 cm
9 Dec. Cloudy
Cloudy
 5° /-1° 0 mm 0 cm
10 Dec. Sunny
Sunny
 7° /-1° 0 mm 0 cm
11 Dec. Overcast
Overcast
 7° /-1° 1.5 mm 0 cm
12 Dec. Partly cloudy
Partly cloudy
 5° /-2° 0 mm 0 cm
13 Dec. Overcast
Overcast
 3° /-1° 5.3 mm 0.4 cm
14 Dec. Overcast
Overcast
 2° /-3° 0 mm 0 cm
15 Dec. Partly cloudy
Partly cloudy
 5° /-3° 0 mm 0 cm
16 Dec. Patchy rain possible
Patchy rain possible
 9° /2° 0.3 mm 0 cm
17 Dec. Partly cloudy
Partly cloudy
 8° /2° 0 mm 0 cm
18 Dec. Sunny
Sunny
 9° /1° 0 mm 0 cm
19 Dec. Partly cloudy
Partly cloudy
 10° /2° 0 mm 0 cm
20 Dec. Overcast
Overcast
 13° /6° 0 mm 0 cm
21 Dec. Partly cloudy
Partly cloudy
 10° /5° 0 mm 0 cm
22 Dec. Patchy rain possible
Patchy rain possible
 11° /6° 4.4 mm 0 cm
23 Dec. Patchy rain possible
Patchy rain possible
 6° /2° 0.2 mm 0 cm
24 Dec. Sunny
Sunny
 5° /-1° 0 mm 0 cm
25 Dec. Partly cloudy
Partly cloudy
 2° /-2° 0 mm 0 cm
26 Dec. Partly cloudy
Partly cloudy
 2° /-2° 0 mm 0 cm
27 Dec. Light freezing rain
Light freezing rain
 -1° /-5° 0.2 mm 0.2 cm
28 Dec. Sunny
Sunny
 -2° /-7° 0 mm 0 cm
29 Dec. Overcast
Overcast
 4° /-4° 0 mm 0 cm
30 Dec. Overcast
Overcast
 8° /0° 0.1 mm 0 cm
31 Dec. Sunny
Sunny
 2° /-2° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Cheonan 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 Cheonan forecast closer to your planned date for the most up-to-date weather information.
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Cheonan in December - FAQ

What are the expected maximum and minimum temperatures in Cheonan 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 Cheonan during December?
Expect minimal rainfall in Cheonan during December, with a total of 11.8 mm over approximately 5 days. This minimal precipitation is unlikely to significantly impact plans.
Will it snow in Cheonan in December 2025?
Cheonan typically sees 1.2 cm of snowfall during December.
What are the typical wind conditions in Cheonan during December?
The average wind speed in Cheonan during December is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

Cheonan snow forecast December 2025

Track daily snowfall levels and discover Cheonan’s snowy potential this December ❄️
On average, Cheonan sees 1 snowy days during December, with approximately 1.2 cm of total snowfall.

December rainfall patterns in Cheonan

Explore the daily rainfall trends and prepare for Cheonans December weather 💧
Typically, Cheonan has 5 rainy days in December with a total of 11.8 mm of rainfall.

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Location coordinates Where is Cheonan?

Get accurate weather forecasts for Cheonan, located at latitude 36.807 and longitude 127.152. Stay updated with localized weather information tailored for Cheonan.

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