Slovenia (Ljubljana)
December
Weather in Slovenia for December 2025
Your guide to Slovenia weather in December - trends and predictions
With an average of 4 snowy days, Slovenia usually enjoys a light touch of snow in December.
In general, the average temperature in Slovenia at the beginning of December is 4.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 5.6 °C by the end of December.
Snow Forecast ❄️
Temperatures
21
Dry days
6
Rainy days
4
Snow days
5°/0°
Temperatures
8 km/h
Avg max wind
89 %
Avg humidity
Slovenia in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  9° | 2  10° | 3  3° | 4  3° | 5  2° | 6  2° | 7  4° |
| 8  2° | 9  1° | 10 2° | 11 3° | 12 4° | 13  5° | 14 4° |
| 15  3° | 16 6° | 17  5° | 18  6° | 19  6° | 20 5° | 21 3° |
| 22 5° | 23 4° | 24 4° | 25 4° | 26 5° | 27 5° | 28 5° |
| 29 7° | 30 6° | 31 7° |
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Temperatures trend during December in Slovenia
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. | Light rain | 9° /0° | 7.7 mm | 0 cm | |
| 2 Dec. | Moderate or heavy rain with thunder | 10° /-1° | 12.7 mm | 0 cm | |
| 3 Dec. | Moderate or heavy snow showers | 3° /-3° | 2.7 mm | 2.3 cm | |
| 4 Dec. | Mist | 3° /-2° | 0.2 mm | 0 cm | |
| 5 Dec. | Light sleet | 2° /-3° | 6.8 mm | 1.6 cm | |
| 6 Dec. | Light snow | 2° /-2° | 0.3 mm | 0.2 cm | |
| 7 Dec. | Freezing fog | 4° /-2° | 0 mm | 0 cm | |
| 8 Dec. | Cloudy | 2° /-1° | 0.8 mm | 0.1 cm | |
| 9 Dec. | Heavy snow | 1° /-2° | 2.4 mm | 1.8 cm | |
| 10 Dec. | Light rain | 2° /-1° | 1.4 mm | 0.1 cm | |
| 11 Dec. | Mist | 3° /0° | 0.2 mm | 0.1 cm | |
| 12 Dec. | Light drizzle | 4° /0° | 0.3 mm | 0 cm | |
| 13 Dec. | Moderate rain | 5° /-1° | 31.5 mm | 0 cm | |
| 14 Dec. | Light rain | 4° /0° | 6.4 mm | 0 cm | |
| 15 Dec. | Patchy rain possible | 3° /-2° | 0 mm | 0 cm | |
| 16 Dec. | Mist | 6° /-2° | 0 mm | 0 cm | |
| 17 Dec. | Overcast | 5° /-1° | 0 mm | 0 cm | |
| 18 Dec. | Partly cloudy | 6° /0° | 0 mm | 0 cm | |
| 19 Dec. | Sunny | 6° /0° | 1.6 mm | 0 cm | |
| 20 Dec. | Overcast | 5° /-1° | 12.1 mm | 0 cm | |
| 21 Dec. | Mist | 3° /-2° | 0 mm | 0 cm | |
| 22 Dec. | Patchy rain possible | 5° /-1° | 4.7 mm | 3.3 cm | |
| 23 Dec. | Mist | 4° /-2° | 2.7 mm | 1.9 cm | |
| 24 Dec. | Mist | 4° /-3° | 0 mm | 0 cm | |
| 25 Dec. | Mist | 4° /-3° | 0 mm | 0 cm | |
| 26 Dec. | Mist | 5° /-1° | 0 mm | 0 cm | |
| 27 Dec. | Mist | 5° /-2° | 0 mm | 0 cm | |
| 28 Dec. | Patchy rain possible | 5° /-1° | 0 mm | 0 cm | |
| 29 Dec. | Patchy rain possible | 7° /0° | 0 mm | 0 cm | |
| 30 Dec. | Mist | 6° /0° | 0 mm | 0 cm | |
| 31 Dec. | Light drizzle | 7° /0° | 1.3 mm | 0 cm | |
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Important Notice
Our weather forecast for Slovenia in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Slovenia forecast closer to your planned date for the most up-to-date weather information.
Slovenia in December - FAQ
What are the expected maximum and minimum temperatures in Slovenia during December?
Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Slovenia during December?
Significant rainfall exceeding 113.2 mm is expected in Slovenia during December, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Slovenia in December 2025?
Slovenia experiences an average snowfall of 6.01 cm during December, occurring over 4 days.
What are the typical wind conditions in Slovenia during December?
The average wind speed in Slovenia during December is 8 km/h, suggesting breezy to windy conditions, depending on your activities.
Slovenia snow forecast December 2025
Track daily snowfall levels and discover Slovenia’s snowy potential this December ❄️
December rainfall patterns in Slovenia
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