If you plan to visit Oslo in December, the weather is typically alright, with an average high temperature of +1°C during the day and approximately 2 sunny days. Expect some snowy, though, as there are typically 11 snowy days in the month and around 37 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Good to know:
December is usually the wettest month of the year in Oslo;
Average weather
☀️
+1°C
Avg. max. temperature
-26°C
Min.
+13°C
Max.
34 mm
Total precipitation
84%
Avg. humidity
2 m/s
Avg. wind
2 ☀️
Sunny Days
14 ⛅️
Cloudy
4 🌦
Rainy
Our opinion: Oslo has OK weather in December.
Avionero - A better way to search for flights:
Cheapest prices on the market!
Check all your dates and date combinations in a single search!
Want inspiration, set your dates and find the cheapest destinations!
Saves your searches in the browser so you can easily return to them!
Average temperature in Oslo in December
Here are the expected maximum, average and minimum temperatures in Oslo for December based on the historical data.
Last Year
Historical Data
Going from a maximum of +6°C during the day to a minimum of -13°C during the night, the temperature in December averages around -3°C.
The average maximum temperature goes up 21% by the end of the month, compared with the beginning of the month, from -5°C to -1°C.
Is Oslo warm or cold in December?
Oslo is typically cool in December.
Maximum temperatures go down compared to the previous month from +4°C to +1°C. The minimum temperature also goes down from 0°C to -4°C.
Pack a sweater and a jacket as there will be cooler temperatures.
December is one of the coolest months in Oslo, here is the comparison with other months:
Water temperature in Oslo in December
Water in Oslo in December is Cold. It varies from +3°C to +10°C, with an average of +6°C.Note that the air temperature is lower than the water temperature, averaging around +1°C.
In December, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Oslo are reached in August, when the average sea temperature rises to +18°C. The coldest water temperatures are in March, with an average of +3°C.
Can you swim in Oslo in December?
We would not recommend swimming in Oslo in December, the water is very cold (+6°C on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°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 Oslo in December
Oslo weather looks like this, on average, in December and the surrounding months.
November
December
January
Avg. temperature
+4°C
+1°C
0°C
Min. temperature
-15°C
-26°C
-28°C
Max. temperature
+15°C
+13°C
+18°C
Rainfall
70 mm
34 mm
29 mm
Wind
2 m/s
2 m/s
2 m/s
Avg. water temperature
+9°C
+6°C
+4°C
Humidity
83%
84%
84%
Air pressure
1009 HPa
1008 HPa
1009 HPa
Sunny days
2
2
3
Cloudy days
12
14
13
Rainy days
9
4
3
Snowy days
7
11
12
December weather is still as ok as in November.It’s getting colder in December. From +4°C in the day, the average maximum temperature lowers to +1°C.As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 70 mm to 34 mm.Humidity rises from 83% to 84%.The average wind speed doesn’t change much during December, staying around 2 m/s.The amount of sunny days stay about the same, averaging 2 sunny days during the month.
January brings much the same weather, it remains ok.
Wind speed in Oslo in December based on historical data.
Last Year
Historical Data
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Oslo is gradually increasing during December, going from 2 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during December in Oslo based on historical data.
Last Year
Historical Data
Typically, there is a 3% chance of rain on an average day in December, with total rainfall of approximately 1 mm. The maximum amount of rainfall per day is around 1 mm, which is considered light rain.Oslo is amazing in December with as little as 1 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:
Oslo wettest month is October, where a typical day has a 48% chance of precipitation and 114 mm of rainfall per day. March, on the other hand, is the driest month with a mere 13% chance of precipitation and 26 mm of rainfall per day.
Snow
Amount of snow in mm during December in Oslo based on historical data.
Last Year
Historical Data
Typically, there is a 16% chance of snow on an average day in December, with a total monthly snowfall of approximately 57 mm.
December is one of the snowiest months in Oslo.
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Oslo?
This is the weather in Oslo in December 2023:
1 December
☁️
-5°C
2 December
☁️
-8°C
3 December
☁️
-9°C
4 December
☁️
-11°C
5 December
☁️
-10°C
6 December
☁️
-7°C
7 December
☁️
-5°C
8 December
☁️
-1°C
9 December
🌨️
+1°C
10 December
🌨️
+1°C
11 December
🌨️
0°C
12 December
☁️
0°C
13 December
☁️
-3°C
14 December
☁️
-5°C
15 December
☁️
-6°C
16 December
☁️
+6°C
17 December
☁️
+5°C
18 December
☁️
+4°C
19 December
☁️
+5°C
20 December
☁️
+1°C
21 December
🌨️
0°C
22 December
☁️
0°C
23 December
☀️
-4°C
24 December
🌨️
-5°C
25 December
☁️
-3°C
26 December
☁️
-9°C
27 December
☁️
-6°C
28 December
☁️
-3°C
29 December
☁️
-2°C
30 December
☁️
-1°C
31 December
☁️
-1°C
In December 2023 Oslo had 1 sunny days, 25 cloudy days, and 0 rainy days. The average maximum temperature was -3°C, with an absolute maximum of +6°C and a minimum of -11°C. The average humidity was 88%, with a maximum of 99% and a minimum of 64%. The average wind speed was 2 m/s, with a maximum of 6 m/s and a minimum of 0 m/s.
Are you planning a trip in December?
Climate Change over Years
This is how Oslo climate have been changing during last 43 years period.
The climate in Oslo in December has not changed much over the last 43 years.
The average temperature was the lowest in 1985 (+8°C) and the highest in 2020 (+12°C). The driest year was 1981 with only 527 mm of rainfall, and the wettest year was 2020 with 2467 mm.
FAQ
Frequently asked questions about the weather in Oslo in December:
Is December a good time to visit Oslo?
It’s always a good time to visit Oslo, 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 Oslo in December?
Not really, December is not the best time to sunbathe, unless you visit a local solarium.
Can you swim in Oslo in December?
Swimming in Oslo in December is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is Oslo rainy in December?
Oslo is usually dry in December. Plan your packing around outdoor activities and exploring.
Is it sunny in Oslo in December?
Usually, it’s not very sunny in Oslo 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 Oslo, 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.
