Sinemorets Weather in December
In Sinemorets, December brings low daytime temperatures around 10°C (50°F), with nights cooling to 6°C (43°F). Expect quite a bit of rainfall this month.
Rainfall in Sinemorets in December
You can expect rain on roughly 12 days based on historical data, averaging 99 mm (3.9 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Sinemorets in December
Temperatures in Sinemorets in December top out at 10°C (50°F) and drop to 6°C (43°F) overnight. The month of December belongs to the winter season. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Sinemorets in December
The month is characterized by fewer sunny days, with roughly 65 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.December in Sinemorets can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bulgaria, check out our Sinemorets's climate page.
Sinemorets Temperature in December
Min Temperature
6°C (43°F)
Max Temperature
10°C (50°F)
Chance of Rain
38%
Precipitation
99 mm (3.9 in)
Rainy days
12 days
Humidity
81% *
Sunshine
65 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Sinemorets typically stay consistent throughout December, with daily highs averaging around 10°C (50°F). Nights are cold, with lows typically ranging from 0°C (32°F) to 4°C (39°F).
Average temperatures in December
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Sinemorets in December
Browse day-by-day weather records for Sinemorets spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sinemorets historical weather extremes in December
Based on 28 years of weather observations in Sinemorets between 1997 and 2025, these are the recorded extremes.
- The hottest December day on record in Sinemorets reached 21°C (70°F) (December 2, 2010).
Best Places in Bulgaria in December
Find out more about the weather in Bulgaria and which places have the best travel conditions in this month. See all of Bulgaria in December →
perfect weather
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tolerable
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What to Wear in Sinemorets in December
The weather can be unpredictable in December, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Sinemorets in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bulgaria, check out our Sinemorets's climate page.
Temperature Rainfall Sunshine Humidity
See the full Sinemorets climate overview or explore weather in Bulgaria.
