Weather in Ljubljana in December
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Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for December in Ljubljana.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youLjubljana in December is cold — daytime temperatures average 5.7°C, dropping to -0.6°C at night. The month is fairly wet (12 rainy days on average), with roughly 3.1 hours of sunshine a day. Weather-wise, this is one of the most reliable months to travel. For the complete picture, see the best time to visit Ljubljana — every month compared. Once you know when to go, find your Ljubljana packing list at 247PackingList.
Get ready for Ljubljana in December
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Search Flights →Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →What to pack for Ljubljana in December
- Warm winter coat
- Thermal underlayers
- Gloves, hat and scarf
- Waterproof boots
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Compare all months in Ljubljana
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 5.8°C | 83.3mm | 10/10 |
| February | 9.5°C | 48.2mm | 10/10 |
| March | 11.9°C | 63.7mm | 10/10 |
| April | 15.2°C | 77.3mm | 10/10 |
| May | 19.5°C | 157.4mm | 9/10 |
| June | 25.9°C | 78.0mm | 10/10 |
| July | 28.0°C | 107.5mm | 9/10 |
| August | 26.6°C | 114.2mm | 9/10 |
| September | 22.4°C | 114.0mm | 9/10 |
| October | 17.4°C | 129.6mm | 9/10 |
| November | 10.1°C | 121.4mm | 9/10 |
| December | 5.7°C | 135.8mm | 9/10 |
Full month-by-month guide: best time to visit Ljubljana →
For facts about Slovenia — currency, language and dialling code — see our Slovenia country guide at 247CountryInfo. Travellers also find it useful to keep a Ljubljana travel guide to hand. Check clothing sizes in Slovenia before you shop.
Frequently Asked Questions
Is December a good time to visit Ljubljana?
December rates 9/10 for visiting Ljubljana — excellent time to visit. Expect average highs of 5.7°C, 135.8mm of rain across the month and about 3.1 hours of daily sunshine.
What is the temperature in Ljubljana in December?
In December, Ljubljana has average highs of 5.7°C (42.3°F) and average lows of -0.6°C (30.9°F).
Does it rain in Ljubljana in December?
Some rain is likely. Ljubljana averages 135.8mm across about 12 rainy days in December, so a light waterproof layer is worth packing.
What should I wear in Ljubljana in December?
For Ljubljana in December (5.7°C highs / -0.6°C lows), pack warm winter coat plus thermal underlayers, gloves, hat and scarf, waterproof boots.
More essentials for Ljubljana in December
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.