Sliven
December
Weather in Sliven for December 2026
Your guide to Sliven weather in December - trends and predictions
Snowfall in Sliven during December is quite rare, with fewer than 2 snowy days on average.
In general, the average temperature in Sliven at the beginning of December is 8.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 4.1 °C by the end of December.
Sliven experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 142 mm.
Is December a good time to visit Sliven? check out the best time to travel to Sliven page.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
More
21
Dry days
9
Rainy days
1
Snow days
7°/2°
Temperatures
14 km/h
Avg max wind
84 %
Avg humidity
Sliven Weather December
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Temperatures trend during December in Sliven
See the weather trend as well as the moving average line
December weather in Sliven day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Overcast | 8° /4° | 0 mm | 0 cm | |
| 2 Dec. |  Moderate rain at times | 8° /2° | 5.2 mm | 0 cm | |
| 3 Dec. | Overcast | 8° /2° | 0.1 mm | 0 cm | |
| 4 Dec. |  Cloudy | 9° /3° | 0 mm | 0 cm | |
| 5 Dec. | Overcast | 10° /4° | 0.1 mm | 0 cm | |
| 6 Dec. | Moderate rain at times | 9° /3° | 1.7 mm | 0 cm | |
| 7 Dec. | Moderate or heavy rain shower | 9° /3° | 10.1 mm | 0 cm | |
| 8 Dec. | Moderate rain at times | 7° /4° | 4.2 mm | 0 cm | |
| 9 Dec. |  Patchy rain possible | 10° /4° | 1 mm | 0 cm | |
| 10 Dec. | Moderate or heavy rain shower | 10° /3° | 7 mm | 0 cm | |
| 11 Dec. | Overcast | 10° /3° | 0 mm | 0 cm | |
| 12 Dec. |  Partly cloudy | 8° /2° | 0 mm | 0 cm | |
| 13 Dec. |  Sunny | 8° /0° | 0 mm | 0 cm | |
| 14 Dec. | Overcast | 7° /0° | 0.3 mm | 0 cm | |
| 15 Dec. | Overcast | 8° /0° | 0.2 mm | 0 cm | |
| 16 Dec. | Sunny | 8° /0° | 0 mm | 0 cm | |
| 17 Dec. | Sunny | 11° /2° | 0 mm | 0 cm | |
| 18 Dec. | Sunny | 12° /3° | 0 mm | 0 cm | |
| 19 Dec. | Overcast | 11° /4° | 0 mm | 0 cm | |
| 20 Dec. | Overcast | 10° /3° | 0 mm | 0 cm | |
| 21 Dec. | Moderate or heavy rain shower | 7° /2° | 9.3 mm | 0.3 cm | |
| 22 Dec. | Patchy rain possible | 7° /2° | 0.7 mm | 0 cm | |
| 23 Dec. | Overcast | 7° /2° | 0.4 mm | 0 cm | |
| 24 Dec. | Moderate or heavy rain shower | 9° /3° | 17.6 mm | 0 cm | |
| 25 Dec. | Moderate or heavy rain shower | 6° /0° | 24 mm | 0.1 cm | |
| 26 Dec. | Moderate or heavy rain shower | 4° /-1° | 3.6 mm | 0.2 cm | |
| 27 Dec. |  Light freezing rain | 2° /-2° | 0.7 mm | 0 cm | |
| 28 Dec. | Overcast | 2° /-2° | 0.4 mm | 0.2 cm | |
| 29 Dec. | Overcast | 4° /-2° | 0 mm | 0 cm | |
| 30 Dec. | Sunny | 7° /-2° | 0 mm | 0 cm | |
| 31 Dec. | Sunny | 4° /-3° | 0 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Sliven 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 Sliven forecast closer to your planned date for the most up-to-date weather information.
Change Month
Sliven weather in December vs November vs January
Compare December weather in Sliven with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| November | December | January | |
|---|---|---|---|
| Weather | Sunny | Cloudy | Cloudy |
| Temperatures | 10°/2° | 7°/2° | 7°/1° |
| Rainfall | 58 mm | 142 mm | 27 mm |
| Snowfall | 0 cm | 1 cm | 2 cm |
| Wind | 11 km/h | 13.9 km/h | 8.8 km/h |
| Humidity | 68% | 84% | 79% |
| Rainy days | 10 days | 9 days | 3 days |
| Snow days | 0 days | 1 days | 2 days |
| Dry days | 20 days | 21 days | 26 days |
Planning a trip to Sliven? Discover the best time to visit
Sliven in December - FAQ
What are the expected maximum and minimum temperatures in Sliven during December?
Prepare for cooler days with highs just around 7° and colder nights, dipping below 2°.
How much rainfall should be expected in Sliven during December?
Significant rainfall exceeding 142 mm is expected in Sliven during December, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Sliven in December 2026?
Sliven typically sees 0.51 cm of snowfall during December.
What are the typical wind conditions in Sliven during December?
The average wind speed in Sliven during December is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Sliven in December?
As you prepare for your trip to Sliven in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Sliven, during December, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
Sliven snow forecast December 2026
Track daily snowfall levels and discover Sliven’s snowy potential this December ❄️
On average, Sliven sees 1 snowy days during December, with approximately 0.5 cm of total snowfall.
December rainfall patterns in Sliven
Explore the daily rainfall trends and prepare for Slivens December weather 💧
Typically, Sliven has 9 rainy days in December with a total of 142 mm of rainfall.
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