Sliven Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Sliven, Bulgaria in December.

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Zheravna Sliven Medven Kotel

Considering a trip to Sliven, Bulgaria this December and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Sliven in December

Sliven, Bulgaria is a region in Bulgaria. December in Sliven generally has cold temperatures, with moderate precipitation. The month of December is in the winter season.

Temperatures

You can expect cold maximum daytime temperatures of around 6°C (43°F) and nighttime temperatures around -1°C (30°F) in Zheravna.

To explore the conditions in Sliven, Bulgaria in more detail, check the map below.

Precipitation

In December, precipitation varies across different areas. From moderate snow/rainfall in Nova Zagora with an average of 62 mm (2.4 in) to moderate snow/rainfall in Zheravna with 69 mm (2.7 in).

Explore Sliven by month

Pick a month to see the average temperature, rainfall and sunshine in Sliven — and find the best time to visit. (based on Zheravna)

January5°C (41°F) February7°C (45°F) March11°C (52°F) April16°C (61°F) May22°C (72°F) June26°C (79°F) This monthJuly28°C (82°F) August29°C (84°F) September24°C (75°F) October18°C (64°F) November12°C (54°F) December6°C (43°F)
Best Time to Visit Sliven →

Best Places to Visit in Sliven in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Sliven.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Sliven

What is the weather like in December for some of the most popular destinations in Sliven, Bulgaria?

Temperature range in Sliven (December)

Precipitation variation in Sliven (December)

Zheravna

In December Zheravna generally has low temperatures with maximum daytime temperatures around 6°C (43°F), minimum nighttime temperatures around -1°C (30°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
6°C (43°F)
5°C (41°F)
Min temperature
3°C (37°F)
-1°C (30°F)
-3°C (27°F)
Monthly snow/rainfall
62 mm (2.4 in)
69 mm (2.7 in)
60 mm (2.4 in)
Monthly rainy days
9 days
11 days
10 days
Weather conditions
unpleasant
poor
poor
Climate in Zheravna →

Sliven

In December Sliven generally has low temperatures with maximum daytime temperatures around 7°C (45°F), minimum nighttime temperatures around -1°C (30°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
7°C (45°F)
5°C (41°F)
Min temperature
4°C (39°F)
-1°C (30°F)
-2°C (28°F)
Monthly snow/rainfall
61 mm (2.4 in)
67 mm (2.6 in)
56 mm (2.2 in)
Monthly rainy days
9 days
11 days
10 days
Weather conditions
unpleasant
poor
poor
Climate in Sliven →

Medven

In December Medven generally has low temperatures with maximum daytime temperatures around 6°C (43°F), minimum nighttime temperatures around -1°C (30°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
6°C (43°F)
5°C (41°F)
Min temperature
3°C (37°F)
-1°C (30°F)
-3°C (27°F)
Monthly snow/rainfall
61 mm (2.4 in)
69 mm (2.7 in)
60 mm (2.4 in)
Monthly rainy days
9 days
10 days
10 days
Weather conditions
unpleasant
poor
poor
Climate in Medven →

Kotel

In December Kotel generally has low temperatures with maximum daytime temperatures around 6°C (43°F), minimum nighttime temperatures around -1°C (30°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
11°C (52°F)
6°C (43°F)
5°C (41°F)
Min temperature
3°C (37°F)
-1°C (30°F)
-3°C (27°F)
Monthly snow/rainfall
62 mm (2.4 in)
69 mm (2.7 in)
61 mm (2.4 in)
Monthly rainy days
9 days
11 days
10 days
Weather conditions
unpleasant
poor
poor
Climate in Kotel →

Nova Zagora

In December Nova Zagora generally has low temperatures with maximum daytime temperatures around 8°C (46°F), minimum nighttime temperatures around 0°C (32°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
13°C (55°F)
8°C (46°F)
7°C (45°F)
Min temperature
4°C (39°F)
0°C (32°F)
-2°C (28°F)
Monthly snow/rainfall
55 mm (2.2 in)
62 mm (2.4 in)
51 mm (2 in)
Monthly rainy days
8 days
10 days
9 days
Weather conditions
unpleasant
poor
poor
Climate in Nova Zagora →

Is your destination not in the list? Have a look at all destinations in Sliven, in Bulgaria.

In our records: Bulgaria December extremes

Notable December records observed across cities in Bulgaria in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest December day in Bulgaria brought 458 mm (18 in) in Tsarevo on December 15, 2007.

Popular cities in December

Day & night temperatures, rainfall and average weather in Sliven in December.

City Weather Day temp Night temp Rainfall
Zheravna 6°C (43°F) -1°C (30°F) 69 mm (2.7 in)
Sliven 7°C (45°F) -1°C (30°F) 67 mm (2.6 in)
Medven 6°C (43°F) -1°C (30°F) 69 mm (2.7 in)
Kotel 6°C (43°F) -1°C (30°F) 69 mm (2.7 in)
Nova Zagora 8°C (46°F) 0°C (32°F) 62 mm (2.4 in)
Tvŭrditsa 6°C (43°F) -1°C (30°F) 68 mm (2.7 in)

Sliven weather in December: frequently asked questions

What is the weather like in Sliven, Bulgaria in December?

December in Sliven, Bulgaria brings poor weather. In Zheravna, daytime temperatures are typically around 6°C (43°F) and nighttime lows hover near -1°C (30°F).

What is the average temperature in Sliven, Bulgaria in December?

Average temperatures in Sliven, Bulgaria during December range from a nighttime low near -1°C (30°F) to a daytime high around 6°C (43°F) in Zheravna.

Does Sliven, Bulgaria get a lot of snow/rain in December?

Rain is generally moderate to light in Sliven, Bulgaria during December, with Zheravna averaging close to 69 mm (2.7 in).

Is December a Good Time to Visit Sliven, Bulgaria?

In our view, December might not be the best time to travel to Sliven, Bulgaria with often poor weather in Zheravna.

Generally speaking, June, July, August and September provide perfect weather in Zheravna. The weather in January, February and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Sliven.

Weather and climate has detailed information for every country in the world. Are you going to Bulgaria? Get detailed historical weather averages for many cities in Bulgaria.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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