Cheonan in december: average Weather, Temperature and Climate
Weather in Cheonan in december 2026
The weather in Cheonan in the month of december comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
very bad weather 121.4cm
Weather at 6am
31°F
Clear/Sunny
41% of time
21%
18%
14%
Weather at 12pm
38°F
Clear/Sunny
45% of time
24%
15%
11%
Weather at 6pm
34°F
Clear/Sunny
44% of time
22%
17%
11%
Weather at 3am
31°F
40%
21%
19%
15%
Evolution of daily average temperature and precipitation in Cheonan in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Cheonan in december.
The climate of Cheonan in december is very bad
The weather in december in Cheonan is rather dry (with 1.7in of rainfall over 2 days). The weather is better from the previous month since in november it receives an average of 2.6in of precipitation over 3 days.
The climate is rather cold there december. Do not forget to cover yourself! The thermometer averaged maximum of 40°F. The seasonal minimum is 31°F. Thus, the mean temperature average on this month of december in Cheonan is 34°F. Note that these seasonal averages are in contrast with those observed in Cheonan in december with a maximum record of 61°F in 2010 and a minimum record of 7°F in 2012. You can expect to have about 21 days with temperatures below 32°F, or 68% of the month.
Day length in Cheonan in december is 09:39. Sunrise is at 07:37 and sets at 17:16.
Seasonal average climate and temperature of Cheonan in december
Check below seasonal norms These datas are set from the weather statements of the past years of the month of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 34°F | ||||
| Highest temperature | 40°F | ||||
| Lowest temperature | 31°F | ||||
| Highest record temperature | 61°F (2010) | ||||
| Lowest record temperature | 7°F (2012) | ||||
| Number of days at +65°F | 0 day(s) (0%) | ||||
| Number of days at -32°F | 21 day(s) (68%) | ||||
| Wind | |||||
| Wind speed | 15km/h | ||||
| Wind temperature | 25°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.7in | ||||
| Number of days with rainfall | 2 day(s) (7%) | ||||
| Record daily rainfall | 1.5in (2012) | ||||
| Snowfall | 121.4cm | ||||
| Other climate data | |||||
| Humidity | 74% | ||||
| Visibility | 9.08km | ||||
| Cloud cover | 40% | ||||
| UV index | 2 | ||||
| Daily sunshine hours | 8 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:37 | ||||
| Time of sunset | 17:16 | ||||
| Length of day | 09:39 | ||||
| Our opinion about the weather in december | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last december?
Here is the day by day recorded weather in Cheonan in december 2025:
41°F to 49°F
34°F to 40°F
22°F to 27°F
22°F to 36°F
25°F to 38°F
29°F to 40°F
38°F to 54°F
34°F to 43°F
29°F to 43°F
34°F to 47°F
40°F to 47°F
29°F to 43°F
32°F to 36°F
32°F to 40°F
27°F to 41°F
34°F to 45°F
41°F to 45°F
32°F to 45°F
32°F to 47°F
45°F to 50°F
31°F to 34°F
25°F to 40°F
31°F to 41°F
34°F to 41°F
29°F to 32°F
16°F to 25°F
20°F to 34°F
29°F to 40°F
34°F to 45°F
29°F to 36°F
22°F to 25°F
Map: other cities in South Korea in december
Cities near Cheonan:
| Asan in december | very bad weather |
| Anseong in december | very bad weather |
| Cheongju in december | very bad weather |
| Gongju in december | very bad weather |
| Osan in december | very bad weather |
| Hongsung in december | very bad weather |
| Hwaseong-si in december | very bad weather |
| Daejeon in december | very bad weather |
| Koesan in december | very bad weather |
| Icheon-si in december | very bad weather |
| Seosan in december | very bad weather |
| Ansan-si in december | very bad weather |
Click over cities on the map for information about the weather in december.
Cheonan
perfect weather
good
tolerable
bad
very bad
Weather data for Cheonan in december:
Weather data for Cheonan for december are derived from an average of the weather forecast since 2009 in Cheonan. There is a margin of error and these forecasts are to be considered as general information only. The weather in Cheonan can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Cheonan.