Early winter · Weather & things to do
Ljubljana in December
Ljubljana cools off: highs slip to 42°F (5°C), from 51°F in November, with lows of 30°F (-1°C) and about 3.3 in (85 mm) of rain.
With a comfort score of 42/100 (12th of 12), it's one of the toughest months, held back mainly by cool days.
- Avg high
- 42°F (5°C)
- Avg low
- 30°F (-1°C)
- Rain
- 3.3 in (85 mm)
- Humidity
- 91%
- Cloud cover
- 73%
- Daylight
- ~8 h 27 min
- Comfort score
- 42/100 · Tough
What December feels like
Afternoons only reach about 42°F (5°C), so plan on a warm jacket.
Average lows of 30°F (-1°C) mean frosty nights and icy mornings.
Some rain is likely, about 3.3 in (85 mm) in the month, so pack for a shower or two.
Only about 8 h 27 min of daylight means early sunsets.
Plan around December
December is one of the lower-scoring months here; the best are April – September.
- Freezing nights return: average lows drop to 30°F.
- Shortest days of the year, about 8 h 27 min of daylight.
- Comfort slips from 54/100 in November to 42/100.
- Our Slovenia’s Alpine Lakes route recommends May – Sep, so December falls outside its suggested window.
What to pack for December
- Insulated jackethighs only 42°F
- Hat, gloves and thermal base layerslows around 30°F
- Shoes with gripfrost and ice are possible
- Packable rain jacket or umbrellaabout 3.3 in of rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Ljubljana in December
A mixed month: these picks balance outdoor stops with indoor fallbacks.
Dragon Bridge
1901 Art Nouveau bridge guarded by four copper dragons, the city's symbol.
Ljubljana Castle
Hilltop castle with a viewing tower over the red roofs to the Julian Alps.
Dvorni Bar
Wine bar near Congress Square with a long list of Slovenian wines by the glass.
Odprta kuhna
Friday open-air food market with dozens of Slovenian cooks and chefs on Pogačar Square.
Tivoli Park
The city's largest park, with an outdoor photo gallery on Jakopič Promenade.
Nearby in December
- Lake Bled in December~29 mi · highs 39°F, 2.6 in rain or snow · 1°C (2°F) cooler by day, drier
- Piran in December~58 mi · highs 48°F, 3.8 in rain · 4°C (7°F) warmer by day, about as wet
- Hallstatt in December~112 mi · highs 41°F, 3.0 in rain or snow · similar daytime temperatures, about as wet
- Cortina d'Ampezzo in December~118 mi · highs 35°F, 2.2 in rain or snow · 4°C (7°F) cooler by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~598 m to Ljubljana's ~306 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Ljubljana in December: quick answers
Is December a good time to visit Ljubljana?
It's one of the tougher months here, scoring 42/100, held back mainly by cool days. The best months are April – September. Expect highs of 42°F (5°C) and 3.3 in (85 mm) of rain. Our Slovenia’s Alpine Lakes route recommends May – Sep, so December is outside its suggested window.
How cold is Ljubljana in December?
Average highs are 42°F (5°C) and average lows 30°F (-1°C), making it the 2nd-coldest month by daytime highs, with nights below freezing on average.
Does it rain a lot in Ljubljana in December?
Some: about 3.3 in (85 mm) of rain falls across December on average, the 6th-driest month of the year. The annual total is about 41.5 in (1054 mm).
What should I pack for Ljubljana in December?
Bring insulated jacket (highs only 42°F), hat, gloves and thermal base layers (lows around 30°F), shoes with grip (frost and ice are possible), packable rain jacket or umbrella (about 3.3 in of rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Ljubljana
Planning Ljubljana in December?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.