Ljubljana City Municipality · Slovenia
Ljubljana in December
In December, Ljubljana averages a daytime high of 3 °C and a night-time low of -4 °C, with about 100 mm of rain over the month. Ljubljana has no month that is both mild and dry by the measure used here.
- Average high
- 3 °C
- Average low
- -4 °C
- Rain in the month
- 100 mm
- Daylight on 15 Dec
- 8 h 40 min
- Comfortable month
- No
- Places to stay
- 98
When to go
How December compares with the rest of the year in Ljubljana
December is tied for the coolest month in Ljubljana by average daytime high; across the year the highs run from 3 °C to 24 °C and the lows from -4 °C to 13 °C. By day, December is 5 °C cooler than November, and January is about the same as December.
December brings 100 mm of rain, less than the monthly average of 119 mm (1434 mm a year); it is the 9th wettest month.
On 15 December the sun is up for about 8 h 40 min, against 8 h 40 min at the shortest and 15 h 40 min at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 3 °C | -4 °C | 62 mm | |
| February | 4 °C | -4 °C | 73 mm | |
| March | 9 °C | 0 °C | 79 mm | |
| April | 14 °C | 3 °C | 106 mm | |
| May | 18 °C | 8 °C | 128 mm | |
| June | 22 °C | 11 °C | 153 mm | |
| July | 24 °C | 13 °C | 142 mm | |
| August | 24 °C | 13 °C | 149 mm | |
| September | 19 °C | 9 °C | 159 mm | |
| October | 14 °C | 6 °C | 151 mm | |
| November | 8 °C | 1 °C | 131 mm | |
| December | 3 °C | -4 °C | 100 mm |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is December a good time to visit Ljubljana?
Not by the measure used here: the average high of 3 °C is below 18 °C and about 100 mm of rain is 80 mm or more. No month in Ljubljana meets it.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
Public holidays in Slovenia in December
Nationwide public holidays; shops and offices may close on these dates.
Where to stay
Where to stay in Ljubljana
This guide lists 98 places to stay in Ljubljana: 1 chain property with its details and own websites, and 97 hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 39; 1–3 km, 10; 3–10 km, 19; 10 km or more, 30.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; public holidays from the OpenHolidays API (ODbL); places to stay from each operator's own public pages and Wikidata. How this guide is made.