Celje weather in December
Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Poor
Best time to visit: May – September
What is the weather like in Celje in December?
In December, Celje is cold: daytime highs average 5 °C, and nights often drop below freezing (−1 °C). The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 9 rainy days and 67 mm in total. Snow falls on about 3 days. All in all, December is not an ideal month for a holiday in Celje.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 28 | 19 | 21 |
| Day | 10° | 5° | 5° |
| Night | 4° | −1° | −2° |
| Sun | 2 h | 2 h | 3 h |
| Rain days | 10 | 9 | 8 |
More details for December
- Daylight
- 8 h 39 min07:35 – 16:13
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 10 km/haverage daily peakAll months
- Cloud cover
- 71 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 3 days1 cm or more of fresh snowAll months
- Time zone
- UTC+1Europe/Ljubljana
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %0 %
- Few rainy daysweight 30 %63 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Celje in December: quick answers
Is Celje hot in December?
No. In December, Celje is cold: daytime highs average 5 °C and nights drop to about −1 °C.
Does it rain much in Celje in December?
Rain is frequent, with about 9 rainy days and 67 mm in total.
Celje month by month
The whole year in CeljeAll destinations: SloveniaWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences