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Ljubljana in December: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Ljubljana in December will be like? Take a look at our weather guide for Ljubljana, based on historical data.
Check flight prices to Ljubljana on Avionero:
December

Weather in Ljubljana in December 2024

Uncomfortable Weather
Chill
☁️
Cloudy
December may not be the ideal time to visit Ljubljana, as the weather can be not ideal. The daily average high temperature does not get higher than +41°F, and there are only about 4 sunny days in the month. Typically there are also 5 rainy days, a total monthly rainfall of approximately 68 mm. Pack for extremes to ensure that you are as comfortable as possible. Search flights in one click on Avionero.
Good to know:
  • December is usually the wettest month of the year in Ljubljana;

Average weather

☀️
+41°F
Avg. max. temperature
-6°F
Min.
+61°F
Max.
68 mm
Total precipitation
87%
Avg. humidity
0 m/s
Avg. wind
4 ☀️
Sunny Days
20 ⛅️
Cloudy
5 🌦
Rainy
Our opinion: Ljubljana has uncomfortable weather in December.

Average temperature in Ljubljana in December

Here are the expected maximum, average and minimum temperatures in Ljubljana for December based on the historical data.
Last Year
Historical Data

Going from a maximum of +57°F during the day to a minimum of +23°F during the night, the temperature in December averages around +43°F.

The average maximum temperature goes up 47% by the end of the month, compared with the beginning of the month, from +41°F to +57°F.

Is Ljubljana warm or cold in December?

Ljubljana is typically chill in December.

Maximum temperatures go down compared to the previous month from +50°F to +41°F. The minimum temperature also goes down from +37°F to +30°F.

Pack a jumper and a jacket as there will be cooler temperatures.

December is one of the coolest months in Ljubljana, here is the comparison with other months:

Climate in Ljubljana in December

Ljubljana weather looks like this, on average, in December and the surrounding months.
NovemberDecemberJanuary
Avg. temperature
+50°F+41°F+39°F
Min. temperature
+7°F-6°F-9°F
Max. temperature
+73°F+61°F+59°F
Rainfall
102 mm68 mm42 mm
Wind
0 m/s0 m/s0 m/s
Humidity
86%87%84%
Air pressure
1017 HPa1018 HPa1018 HPa
Sunny days
345
Cloudy days
192021
Rainy days
753
Snowy days
122

December typically has worse weather conditions compared to November. It’s getting colder in December. From +50°F in the day, the average maximum temperature lowers to +41°F. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 102 mm to 68 mm. Humidity rises from 86% to 87%. The average wind speed doesn’t change much during December, staying around 0 m/s. The good news is there are likely to be more sunny days in December, from 3 to 4.

But maybe it is worth considering traveling in January as the weather gets better.

Wind

Wind speed in Ljubljana in December based on historical data.
Last Year
Historical Data

The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Ljubljana is gradually increasing during December, going from 0 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during December in Ljubljana based on historical data.
Last Year
Historical Data
Typically, there is a 48% chance of rain on an average day in December, with total rainfall of approximately 149 mm. The maximum amount of rainfall per day is around 37 mm, which is moderate rain. December is a pretty wet month with over 15 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how December is compared with other months in the amount of precipitation, total mm:
Ljubljana wettest month is September, where a typical day has a 27% chance of precipitation and 125 mm of rainfall per day. January, on the other hand, is the driest month with a mere 10% chance of precipitation and 42 mm of rainfall per day.

Snow

Amount of snow in mm during December in Ljubljana based on historical data.
Last Year
Historical Data
The total snow in December is about 21 mm, with a 3% chance of snow on a typical day.

December is one of the snowiest months in Ljubljana.

Here’s how December is compared with other months in the amount of snow, total mm:

How was the weather last December in Ljubljana?

This is the weather in Ljubljana in December 2023:
1 December
🌧️
+40°F
2 December
🌧️
+38°F
3 December
🌧️
+39°F
4 December
🌧️
+40°F
5 December
🌧️
+43°F
6 December
☁️
+45°F
7 December
☁️
+47°F
8 December
☁️
+41°F
9 December
🌧️
+41°F
10 December
🌧️
+42°F
11 December
🌨️
+36°F
12 December
☁️
+35°F
13 December
☁️
+30°F
14 December
☁️
+35°F
15 December
☁️
+34°F
16 December
🌧️
+39°F
17 December
🌧️
+37°F
18 December
☁️
+36°F
19 December
☁️
+35°F
20 December
☁️
+39°F
21 December
☁️
+43°F
22 December
☁️
+48°F
23 December
☁️
+51°F
24 December
☁️
+51°F
25 December
☁️
+49°F
26 December
☁️
+51°F
27 December
☁️
+52°F
28 December
☁️
+46°F
29 December
☁️
+48°F
30 December
🌧️
+50°F
31 December
☁️
+57°F
In December 2023 Ljubljana had 0 sunny days, 20 cloudy days, and 10 rainy days. The average maximum temperature was +43°F, with an absolute maximum of +57°F and a minimum of +30°F. The average humidity was 90%, with a maximum of 100% and a minimum of 71%. The average wind speed was 1 m/s, with a maximum of 5 m/s and a minimum of 0 m/s.
Are you planning a trip in December?

Climate Change Over the Years

This is how Ljubljana climate has changed over the last 43 years.

The climate in Ljubljana in December has not changed that much over the last 43 years.

The average temperature was the lowest in 1998 (+41°F) and the highest in 2015 (+53°F). The driest year was 2015 with only 0 mm of rainfall, and the wettest year was 2008 with 221 mm.

FAQ

Frequently asked questions about the weather in Ljubljana in December:

Is December a good time to visit Ljubljana?

There is never a bad time to go to Ljubljana, but the weather isn’t the best in December, so plan on enjoying the great indoor attractions of Ljubljana and pack for the extremes in weather.

Can you sunbathe in Ljubljana in December?

Not really, December is not the best time to sunbathe, unless you visit a local solarium.

Is Ljubljana rainy in December?

Ljubljana 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 Ljubljana in December?

Usually, it’s not very sunny in Ljubljana in December, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Monthly weather in Ljubljana

Source of the data

For this page, we’ve looked at the typical weather in Ljubljana, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

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.