December could be a good time to visit Tromso, as the weather is generally fine. The average high temperature is around +30°F, and there are typically 4 sunny days in December. However, expect about 16 snowy days, and total monthly rainfall of approximately 60 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+30°F
Avg. max. temperature
-18°F
Min.
+50°F
Max.
60 mm
Total precipitation
79%
Avg. humidity
4 m/s
Avg. wind
4 ☀️
Sunny Days
8 ⛅️
Cloudy
3 🌦
Rainy
Our opinion: Tromso has OK weather in December.
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Average temperature in Tromso in December
Here are the expected maximum, average and minimum temperatures in Tromso for December based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in December is +27°F with a maximum of +43°F and a minimum of +1°F.
The average maximum temperature goes down 57% by the end of the month, compared with the beginning of the month, from +30°F to +7°F.
Is Tromso warm or cold in December?
Tromso is typically cold in December.
Maximum temperatures go down compared to the previous month from +34°F to +30°F. The minimum temperature also goes down from +25°F to +19°F.
Wear your winter warms as it will be cold. To save space, layer, and don’t forget gloves and a scarf.
December is one of the coolest months in Tromso, here is the comparison with other months:
Water temperature in Tromso in December
Water in Tromso in December is Cold. It varies from +39°F to +48°F, with an average of +44°F.Note that the air temperature is lower than the water temperature, averaging around +30°F.
In December, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Tromso are reached in August, when the average sea temperature rises to +52°F. The coldest water temperatures are in March, with an average of +40°F.
Can you swim in Tromso in December?
We would not recommend swimming in Tromso in December, the water is very cold (+44°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 Tromso in December
Tromso weather looks like this, on average, in December and the surrounding months.
November
December
January
Avg. temperature
+34°F
+30°F
+28°F
Min. temperature
-11°F
-18°F
-22°F
Max. temperature
+54°F
+50°F
+48°F
Rainfall
68 mm
60 mm
53 mm
Wind
3 m/s
4 m/s
4 m/s
Avg. water temperature
+46°F
+44°F
+41°F
Humidity
80%
79%
79%
Air pressure
1004 HPa
1001 HPa
1002 HPa
Sunny days
3
4
4
Cloudy days
8
8
8
Rainy days
7
3
2
Snowy days
12
16
16
December weather is still as ok as in November.It’s getting colder in December. From +34°F in the day, the average maximum temperature lowers to +30°F.As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 68 mm to 60 mm.It feels drier, as humidity decreases from 80% to 79%.Winds are stronger in comparison to November, going up from 3 m/s to 4 m/s on average.The good news is there are likely to be more sunny days in December, from 3 to 4.
January brings much the same weather, it remains ok.
Wind speed in Tromso in December based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Tromso is gradually decreasing during December, going from 3 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during December in Tromso based on historical data.
Last Year
Historical Data
Total precipitation in December is about 12 mm, with a 6% chance of rain on a typical day. The maximum amount of rainfall per day is around 8 mm, which is considered light rain.Tromso is amazing in December with as little as 2 rainy days on average, so plan adventures in the great outdoors.
Here’s how December is compared with other months in the amount of precipitation, total mm:
Tromso wettest month is September, where a typical day has a 70% chance of precipitation and 128 mm of rainfall per day. February, on the other hand, is the driest month with a mere 7% chance of precipitation and 47 mm of rainfall per day.
Snow
Amount of snow in mm during December in Tromso based on historical data.
Last Year
Historical Data
The total snow in December is about 33 mm, with a 23% chance of snow on a typical day.
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Tromso?
This is the weather in Tromso in December 2023:
1 December
☁️
+29°F
2 December
☁️
+29°F
3 December
☀️
+19°F
4 December
🌨️
+31°F
5 December
☁️
+27°F
6 December
☁️
+23°F
7 December
☁️
+21°F
8 December
☁️
+25°F
9 December
☀️
+30°F
10 December
☁️
+26°F
11 December
🌨️
+27°F
12 December
☀️
+23°F
13 December
☀️
+17°F
14 December
☁️
+16°F
15 December
🌨️
+26°F
16 December
🌨️
+35°F
17 December
🌧️
+42°F
18 December
🌧️
+39°F
19 December
🌨️
+35°F
20 December
🌨️
+37°F
21 December
☀️
+27°F
22 December
☀️
+25°F
23 December
☀️
+13°F
24 December
☁️
+28°F
25 December
☀️
+22°F
26 December
🌨️
+33°F
27 December
☁️
+39°F
28 December
☀️
+39°F
29 December
☀️
+22°F
30 December
☀️
+18°F
31 December
☀️
+8°F
In December 2023 Tromso had 12 sunny days, 10 cloudy days, and 2 rainy days. The average maximum temperature was +27°F, with an absolute maximum of +43°F and a minimum of +7°F. The average humidity was 80%, with a maximum of 94% and a minimum of 69%. The average wind speed was 3 m/s, with a maximum of 14 m/s and a minimum of 0 m/s.
Are you planning a trip in December?
Climate Change Over the Years
This is how Tromso climate has changed over the last 43 years.
The climate in Tromso in December has not changed that much over the last 43 years.
The average temperature was the lowest in 1981 (+39°F) and the highest in 1990 (+46°F). The driest year was 1980 with only 614 mm of rainfall, and the wettest year was 1989 with 1352 mm.
FAQ
Frequently asked questions about the weather in Tromso in December:
Is December a good time to visit Tromso?
It’s always a good time to visit Tromso, but the weather is changeable in December, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Tromso in December?
Not really, December is not the best time to sunbathe, unless you visit a local solarium.
Can you swim in Tromso in December?
Swimming in Tromso in December is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Tromso rainy in December?
Tromso is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Tromso in December?
Usually, it’s not very sunny in Tromso in December, 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 Tromso, 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.
