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Weather in Sliven for December 2025

Your guide to Sliven weather in December - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Sliven during December is quite rare, with fewer than 2 snowy days on average.

    • Temperatures

  • In general, the average temperature in Sliven at the beginning of December is 7.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 4 °C by the end of December.

    • Rain 🌧️

  • The climate of Sliven in December is notably wet, with an average of 13 rainy days, and a total of 141.9 mm of precipitation.

    • More

  • Is December a good time to visit Sliven? check out the best time to travel to Sliven page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
1
Snow days
Average temperatures
7°/2°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Sliven Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Overcast
7°
2
Moderate rain at times
6°
3
Overcast
6°
4
Cloudy
7°
5
Overcast
8°
6
Moderate rain at times
8°
7
Moderate or heavy rain shower
10°
8
Moderate rain at times
8°
9
Patchy rain possible
11°
10
Moderate or heavy rain shower
10°
11
Overcast
8°
12
Partly cloudy
6°
13
Sunny
6°
14
Overcast
4°
15
Overcast
7°
16
Sunny
6°
17
Sunny
13°
18
Sunny
11°
19
Overcast
9°
20
Overcast
9°
21
Moderate or heavy rain shower
5°
22
Patchy rain possible
5°
23
Overcast
6°
24
Moderate or heavy rain shower
9°
25
Moderate or heavy rain shower
6°
26
Moderate or heavy rain shower
2°
27
Light freezing rain
1°
28
Overcast
2°
29
Overcast
3°
30
Sunny
6°
31
Sunny
8°

Temperatures trend during December in Sliven

See the weather trend as well as the moving average line

December weather in Sliven day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Overcast
Overcast
 7° /5° 0 mm 0 cm
2 Dec. Moderate rain at times
Moderate rain at times
 6° /2° 10.3 mm 0 cm
3 Dec. Overcast
Overcast
 6° /2° 0.1 mm 0 cm
4 Dec. Cloudy
Cloudy
 7° /2° 0 mm 0 cm
5 Dec. Overcast
Overcast
 8° /3° 0 mm 0 cm
6 Dec. Moderate rain at times
Moderate rain at times
 8° /2° 0.8 mm 0 cm
7 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /4° 19.8 mm 0 cm
8 Dec. Moderate rain at times
Moderate rain at times
 8° /5° 7.5 mm 0 cm
9 Dec. Patchy rain possible
Patchy rain possible
 11° /5° 2 mm 0 cm
10 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 10° /3° 14 mm 0 cm
11 Dec. Overcast
Overcast
 8° /3° 0 mm 0 cm
12 Dec. Partly cloudy
Partly cloudy
 6° /0° 0 mm 0 cm
13 Dec. Sunny
Sunny
 6° /-1° 0 mm 0 cm
14 Dec. Overcast
Overcast
 4° /0° 0.7 mm 0 cm
15 Dec. Overcast
Overcast
 7° /0° 0.3 mm 0 cm
16 Dec. Sunny
Sunny
 6° /0° 0 mm 0 cm
17 Dec. Sunny
Sunny
 13° /3° 0 mm 0 cm
18 Dec. Sunny
Sunny
 11° /3° 0 mm 0 cm
19 Dec. Overcast
Overcast
 9° /3° 0 mm 0 cm
20 Dec. Overcast
Overcast
 9° /2° 0 mm 0 cm
21 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /0° 18.6 mm 0.5 cm
22 Dec. Patchy rain possible
Patchy rain possible
 5° /0° 0.7 mm 0 cm
23 Dec. Overcast
Overcast
 6° /1° 0.2 mm 0 cm
24 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /5° 28.2 mm 0 cm
25 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 6° /2° 30.8 mm 0 cm
26 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 2° /0° 6.5 mm 0 cm
27 Dec. Light freezing rain
Light freezing rain
 1° /-2° 1.4 mm 0 cm
28 Dec. Overcast
Overcast
 2° /-1° 0 mm 0 cm
29 Dec. Overcast
Overcast
 3° /0° 0 mm 0 cm
30 Dec. Sunny
Sunny
 6° /-2° 0 mm 0 cm
31 Dec. Sunny
Sunny
 8° /0° 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.
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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 141.9 mm is expected in Sliven during December, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Sliven in December 2025?
Sliven typically sees 0.5 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 2025

Track daily snowfall levels and discover Sliven’s snowy potential this December ❄️

December rainfall patterns in Sliven

Explore the daily rainfall trends and prepare for Slivens December weather 💧
Provinces in Sliven
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Get accurate weather forecasts for Sliven, located at latitude 42.686 and longitude 26.329. Stay updated with localized weather information tailored for Sliven.

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