January could be a good time to visit Trondheim, as the weather is generally fine. The average high temperature is around +32°F, and there are typically 2 sunny days in January. However, expect about 16 snowy days, and total monthly rainfall of approximately 49 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Good to know:
January is usually the coldest month of the year in Trondheim;
Average weather
☀️
+32°F
Avg. max. temperature
-27°F
Min.
+54°F
Max.
49 mm
Total precipitation
79%
Avg. humidity
2 m/s
Avg. wind
2 ☀️
Sunny Days
9 ⛅️
Cloudy
4 🌦
Rainy
Our opinion: Trondheim has OK weather in January.
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Average temperature in Trondheim in January
Here are the expected maximum, average and minimum temperatures in Trondheim for January based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in January is +36°F with a maximum of +45°F and a minimum of +14°F.
The average maximum temperature goes up 12% by the end of the month, compared with the beginning of the month, from +30°F to +34°F.
Is Trondheim warm or cold in January?
Trondheim is typically chill in January.
Maximum temperatures go down compared to the previous month from +34°F to +32°F. The minimum temperature also goes down from +25°F to +23°F.
Pack a jumper and a jacket as there will be cooler temperatures.
January is the coldest month in Trondheim, here is the comparison with other months:
Water temperature in Trondheim in January
Water in Trondheim in January is Cold. It varies from +39°F to +47°F, with an average of +43°F.Note that the air temperature is lower than the water temperature, averaging around +32°F.
The water temperature in January is one of the coldest of the entire year:
The warmest water temperatures in Trondheim are reached in August, when the average sea temperature rises to +58°F. The coldest water temperatures are in March, with an average of +41°F.
Can you swim in Trondheim in January?
We would not recommend swimming in Trondheim in January, the water is very cold (+43°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in Trondheim in January
Trondheim weather looks like this, on average, in January and the surrounding months.
December
January
February
Avg. temperature
+34°F
+32°F
+34°F
Min. temperature
-8°F
-27°F
-18°F
Max. temperature
+55°F
+54°F
+54°F
Rainfall
59 mm
49 mm
38 mm
Wind
2 m/s
2 m/s
2 m/s
Avg. water temperature
+45°F
+43°F
+42°F
Humidity
80%
79%
78%
Air pressure
1005 HPa
1005 HPa
1008 HPa
Sunny days
2
2
2
Cloudy days
10
9
8
Rainy days
5
4
4
Snowy days
14
16
14
January weather is still as ok as in December.It’s getting colder in January. From +34°F in the day, the average maximum temperature lowers to +32°F.As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 59 mm to 49 mm.It feels drier, as humidity decreases from 80% to 79%.The average wind speed doesn’t change much during January, staying around 2 m/s.The amount of sunny days stay about the same, averaging 2 sunny days during the month.
February brings much the same weather, it remains ok.
Wind speed in Trondheim in January based on historical data.
Last Year
Historical Data
The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Trondheim is gradually increasing during January, going from 1 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during January in Trondheim based on historical data.
Last Year
Historical Data
Total precipitation in January is about 89 mm, with a 35% chance of rain on a typical day. The maximum amount of rainfall per day is around 37 mm, which is moderate rain.January is a pretty wet month with over 11 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how January is compared with other months in the amount of precipitation, total mm:
Trondheim wettest month is August, where a typical day has a 74% chance of precipitation and 124 mm of rainfall per day. February, on the other hand, is the driest month with a mere 14% chance of precipitation and 38 mm of rainfall per day.
Snow
Amount of snow in mm during January in Trondheim based on historical data.
Last Year
Historical Data
The total snow in January is about 30 mm, with a 10% chance of snow on a typical day.
January is one of the snowiest months in Trondheim.
Here’s how January is compared with other months in the amount of snow, total mm:
How was the weather last January in Trondheim?
This is the weather in Trondheim in January 2023:
1 January
☁️
+31°F
2 January
☁️
+20°F
3 January
☁️
+24°F
4 January
☁️
+29°F
5 January
☁️
+27°F
6 January
☁️
+29°F
7 January
☁️
+41°F
8 January
☁️
+45°F
9 January
☁️
+44°F
10 January
☁️
+42°F
11 January
☁️
+45°F
12 January
☁️
+45°F
13 January
☁️
+34°F
14 January
☁️
+30°F
15 January
☁️
+33°F
16 January
🌨️
+32°F
17 January
☁️
+36°F
18 January
☁️
+33°F
19 January
☁️
+29°F
20 January
☁️
+32°F
21 January
☁️
+38°F
22 January
☀️
+33°F
23 January
🌧️
+38°F
24 January
🌧️
+44°F
25 January
🌧️
+45°F
26 January
🌨️
+37°F
27 January
☁️
+37°F
28 January
🌨️
+38°F
29 January
🌧️
+40°F
30 January
🌧️
+37°F
31 January
☁️
+34°F
In January 2023 Trondheim had 1 sunny days, 22 cloudy days, and 5 rainy days. The average maximum temperature was +36°F, with an absolute maximum of +45°F and a minimum of +19°F. The average humidity was 78%, with a maximum of 96% and a minimum of 47%. The average wind speed was 1 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in January?
Climate Change Over the Years
This is how Trondheim climate has changed over the last 43 years.
The climate in Trondheim in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1981 (+45°F) and the highest in 2014 (+52°F). The driest year was 2002 with only 617 mm of rainfall, and the wettest year was 2007 with 1311 mm.
FAQ
Frequently asked questions about the weather in Trondheim in January:
Is January a good time to visit Trondheim?
It’s always a good time to visit Trondheim, but the weather is changeable in January, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Trondheim in January?
Not really, January is not the best time to sunbathe, unless you visit a local solarium.
Can you swim in Trondheim in January?
Swimming in Trondheim in January is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Trondheim rainy in January?
Trondheim is usually dry in January. Plan your packing around outdoor activities and exploring.
Is it sunny in Trondheim in January?
Usually, it’s not very sunny in Trondheim in January, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Trondheim, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
