Trondheim in december: average Weather, Temperature and Climate
Weather in Trondheim in december 2026
The weather in Trondheim in the month of december comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
very bad weather 361.6cm
Weather at 6am
29°F
Partly Cloudy
23% of time
21%
19%
19%
Weather at 12pm
29°F
Partly Cloudy
23% of time
23%
21%
20%
Weather at 6pm
29°F
Partly Cloudy
24% of time
21%
19%
19%
Weather at 3am
29°F
27%
23%
21%
12%
Evolution of daily average temperature and precipitation in Trondheim in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Trondheim in december.
The climate of Trondheim in december is very bad
In december in Trondheim, the climate is wet (with 3.8in of precipitation over 7 days). The weather is worst than the previous month since in november there is an average of 3.2in of rainfall over 6 days.
The climate is rather more than very fresh around this city december. Plan a sweater! Temperatures are up to 32°F. In the morning the temperature drops to 27°F. Thus, the mean temperature average in december in Trondheim is 29°F. Note that seasonal normals are in contrast with those observed in Trondheim in december with a maximum record of 47°F in 2021 and a minimum record of 0°F in 2010. You can expect to have about 24 days with temperatures down below 32°F, or 77% of the month.
On average, in Trondheim, the days of december last 04:35. The sun rises at 09:56 and sets at 14:31.
Seasonal average climate and temperature of Trondheim in december
Check below seasonal norms These statistics are set from the weather statements of the last years of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 29°F | ||||
| Highest temperature | 32°F | ||||
| Lowest temperature | 27°F | ||||
| Highest record temperature | 47°F (2021) | ||||
| Lowest record temperature | 0°F (2010) | ||||
| Number of days at -32°F | 24 day(s) (77%) | ||||
| Sea temperature | |||||
| Average sea temperature | 46°F | ||||
| Lowest sea temperature | 42°F | ||||
| Highest sea temperature | 49°F | ||||
| Wind | |||||
| Wind speed | 15km/h | ||||
| Wind temperature | 20°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3.8in | ||||
| Number of days with rainfall | 7 day(s) (21%) | ||||
| Record daily rainfall | 1.1in (2009) | ||||
| Snowfall | 361.6cm | ||||
| Other climate data | |||||
| Humidity | 89% | ||||
| Visibility | 8.06km | ||||
| Cloud cover | 60% | ||||
| UV index | 2 | ||||
| Daily sunshine hours | 2 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 09:56 | ||||
| Time of sunset | 14:31 | ||||
| Length of day | 04:35 | ||||
| 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 Trondheim in december 2025:
20°F to 31°F
29°F to 41°F
27°F to 31°F
29°F to 32°F
25°F to 29°F
29°F to 32°F
29°F to 34°F
27°F to 34°F
34°F to 36°F
34°F to 36°F
27°F to 32°F
27°F to 31°F
29°F to 32°F
31°F to 36°F
34°F to 36°F
29°F to 32°F
27°F to 34°F
29°F to 32°F
34°F to 41°F
34°F to 41°F
36°F to 40°F
25°F to 32°F
23°F to 29°F
23°F to 38°F
43°F to 45°F
32°F to 40°F
32°F to 41°F
36°F to 40°F
29°F to 31°F
29°F to 34°F
32°F to 34°F
Map: other cities in Norway in december
Cities near Trondheim:
| Brekstad in december | very bad weather |
| Meldal in december | very bad weather |
| Levanger in december | very bad weather |
| Sistranda in december | very bad weather |
| Steinkjer in december | very bad weather |
| Aure in december | very bad weather |
| Steinsdalen in december | very bad weather |
| Roros in december | very bad weather |
| Sunndalsora in december | very bad weather |
| Namsos in december | very bad weather |
| Kristiansund in december | very bad weather |
| Femundsmarka National Park in december | very bad weather |
Click over cities on the map for information about the weather in december.
Trondheim
perfect weather
good
tolerable
bad
very bad
Weather data for Trondheim in december:
Weather data for Trondheim for december are derived from an average of the weather forecast since 2009 in Trondheim. There is a margin of error and these forecasts are to be considered as general information only. The weather in Trondheim 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 Trondheim.