Weather in Sliven in December
Sliven, Bulgaria averages a high of 6.9°C (44.4°F) and low of 0.6°C (33.1°F) in December, with 9 rain days and 5.5 hours of daily sunshine. Travel score: 50.5/100 (Mixed). The best time to visit Sliven is August.
High
7°C44°F
Low
1°C33°F
🌧️
9
rain days
☀️
5.5
hrs/day sunshine
💧
81%
humidity
51— Mixed
December in Sliven is cold and occasionally wet — mixed conditions — plan indoor alternatives.
What are the average temperatures in Sliven?
How much does it rain in Sliven in December?
Sliven receives an average of 70.6mm of rainfall across 9 rainy days in December. The annual total is 776.5mm.
What should I pack for Sliven in December?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 7°C
🧶
Sweaters and warm layers
Layer up for comfort
🧤
Warm gloves
Cold nights around 1°C
🧣
Warm scarf
Protect against cold winds
🎉Visiting Bulgaria in December?
Don't miss any public holidays — check before you book!
Compare Sliven
Popular comparisons:
How can I plan my trip to Sliven?
What other cities are near Sliven?
What are other popular cities in Bulgaria?
What is the weather like in other months in Sliven?
Data based on 1994–2024 averages · Last updated: 2024-12-31