Ulsan in december: average Weather, Temperature and Climate
Weather in Ulsan in december 2026
The weather in Ulsan in december comes from statistical datas on the last years. You can view the weather statistics the entire 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 1.7cm
Weather at 6am
36°F
Clear/Sunny
63% of time
19%
9%
6%
Weather at 12pm
43°F
Clear/Sunny
64% of time
18%
9%
6%
Weather at 6pm
41°F
Clear/Sunny
64% of time
21%
7%
6%
Weather at 3am
38°F
62%
21%
11%
5%
Evolution of daily average temperature and precipitation in Ulsan in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Ulsan in december.
The climate of Ulsan in december is very bad
In december in Ulsan, the climate is rather dry (with 2in of precipitation over 2 days). This is better than the previous month since in november it receives an average of 2.6in of precipitation over 3 days.
The climate is rather cold in this city the month of december. Plan to cover you well! Temperatures are up to 47°F. On average, the recorded minimum temperature is 36°F. Thus, the mean temperature average on this month of december in Ulsan is 41°F. Note that seasonal normals in contrast with those observed in Ulsan in december with a maximum record of 65°F in 2018 and a minimum record of 16°F in 2010. You can expect to have about 13 days with temperatures down below 32°F, or 42% of the month.
Day length in Ulsan in december is 09:46. Sunrise is at 07:25 and sunset is at 17:11.
Seasonal average climate and temperature of Ulsan in december
Check below seasonal norms These datas are set from the weather statements earlier years of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 41°F | ||||
| Highest temperature | 47°F | ||||
| Lowest temperature | 36°F | ||||
| Highest record temperature | 65°F (2018) | ||||
| Lowest record temperature | 16°F (2010) | ||||
| Number of days at +65°F | 0 day(s) (0%) | ||||
| Number of days at -32°F | 13 day(s) (42%) | ||||
| Sea temperature | |||||
| Average sea temperature | 61°F | ||||
| Lowest sea temperature | 56°F | ||||
| Highest sea temperature | 67°F | ||||
| Wind | |||||
| Wind speed | 21km/h | ||||
| Wind temperature | 29°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2in | ||||
| Number of days with rainfall | 2 day(s) (7%) | ||||
| Record daily rainfall | 3.5in (2016) | ||||
| Snowfall | 1.7cm | ||||
| Other climate data | |||||
| Humidity | 70% | ||||
| Visibility | 9.74km | ||||
| Cloud cover | 25% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 8 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:25 | ||||
| Time of sunset | 17:11 | ||||
| Length of day | 09:46 | ||||
| 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 Ulsan in december 2025:
49°F to 58°F
40°F to 50°F
29°F to 36°F
25°F to 40°F
32°F to 43°F
32°F to 50°F
38°F to 56°F
43°F to 47°F
32°F to 49°F
36°F to 52°F
41°F to 56°F
36°F to 43°F
41°F to 52°F
36°F to 43°F
32°F to 47°F
34°F to 50°F
45°F to 54°F
34°F to 52°F
40°F to 56°F
52°F to 65°F
38°F to 54°F
31°F to 47°F
41°F to 54°F
45°F to 47°F
36°F to 45°F
22°F to 32°F
25°F to 41°F
32°F to 47°F
38°F to 52°F
36°F to 45°F
29°F to 32°F
Map: other cities in South Korea in december
Cities near Ulsan:
| Jangan in december | very bad weather |
| Yangsan in december | very bad weather |
| Gyeongju in december | very bad weather |
| Busan in december | very bad weather |
| Miryang in december | very bad weather |
| Pohang in december | very bad weather |
| Gyeongsan-si in december | very bad weather |
| Changwon in december | very bad weather |
| Daegu in december | very bad weather |
| Oepo in december | very bad weather |
| Cheongsong gun in december | very bad weather |
| Gumi in december | very bad weather |
Click over cities on the map for information about the weather in december.
Ulsan
perfect weather
good
tolerable
bad
very bad
Weather data for Ulsan in december:
Weather data for Ulsan for december are derived from an average of the weather forecast since 2009 in Ulsan. There is a margin of error and these forecasts are to be considered as general information only. The weather in Ulsan 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 Ulsan.