December Weather in Shumen, Bulgaria

Last updated: August 21, 2025

December in Shumen, Bulgaria, is a month of dynamic weather characterized by a significant temperature range. Daytime highs can reach a pleasant 18°C (64°F), while nighttime lows may plunge to a brisk -11°C (13°F), leading to an average temperature of 4°C (39°F). This month also experiences considerable precipitation, with 66 mm (2.6 in) of rainfall spread over 12 days, contributing to an overall humidity level of 87%. Residents and visitors alike should be prepared for a mix of chilly days and the occasional rain, making for a truly atmospheric winter experience in Shumen.

December Temperature in Shumen

December in Shumen, Bulgaria, marks a transition into the chill of winter, with temperatures ranging from a minimum of -11°C (13°F) to a maximum of 18°C (64°F). The average temperature hovers around 4°C (39°F), creating a crisp atmosphere that heralds the festive season. As the month progresses, the biting cold becomes more pronounced, reminiscent of the stark January temperatures just around the corner. While the highs still flirt with mildness during the day, the frosty nights serve as a reminder that winter is firmly settling in. This blend of cool days and biting nights makes December an enchanting time in Shumen, inviting visitors to experience the charm of the season.

December Weather in Shumen: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Shumen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shumen, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec343943516169737567564739
Data source: Temperature data for Shumen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Shumen

In December, Shumen, Bulgaria, experiences a notable uptick in precipitation, averaging 66 mm (2.6 in) over the month, making it one of the wetter periods of the year. This increase is reflected in the 12 days of rainfall, which is the highest number of precipitation days seen in any month since June. While the summer months showcase heavy showers, December ushers in a cloudy ambiance, providing a marked contrast to the drier days of late summer and early autumn. The consistent precipitation during this winter month is vital for replenishing local water sources, setting the stage for a vibrant transition into the new year.

December Precipitation Trends in Shumen

The chart displays monthly precipitation patterns in Shumen, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Shumen, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4944644051100502119524866
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Shumen

In Shumen, Bulgaria, December brings a noticeable chill, with humidity levels reaching 87%, making it one of the wetter months of the year. Following the trend from the preceding months, which saw humidity gradually decrease from a high of 88% in January to a low of 62% in July, December marks a slight uptick, reminiscent of the higher autumn levels. As the year closes, the humidity reflects the lingering moisture in the air after the dry summer, contributing to the crisp, wintry atmosphere. This seasonal shift not only underscores the transition from the dry summer months but also signals the approach of harsher winter conditions.

December Average Humidity in Shumen

This chart illustrates the average monthly humidity levels in Shumen, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Shumen is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%84%81%70%72%66%62%48%58%78%85%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Shumen

In December, Shumen, Bulgaria experiences a low UV Index of 2, meaning that sun exposure is minimal and the risk of harm from unprotected sun exposure is slight. This is a continuation of a trend seen throughout the colder months, as the UV Index stays relatively low from January (2) through November (3). Notably, as winter settles in, residents can enjoy the outdoors with extended burn times of up to 45 minutes without significant risk. This stands in stark contrast to the summer months, where the UV Index spikes to 9, indicating a very high exposure risk and drastically reduced burn times of just 15 minutes. As the year cycles, being mindful of UV levels remains essential, even in the chillier seasons. For more detailed information, check out Shumen UV Index.

Maximum UV Index Levels in Shumen for December

The chart shows the monthly maximum UV Index (UVI) for Shumen in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Shumen typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246799997532
Data source: Shumen December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Shumen

In Shumen, Bulgaria, December offers a gentle transition into winter, boasting around 190 hours of sunshine. While the days begin to shorten, the city's winter light creates a serene ambiance, making it an inviting time for quiet reflection. This month sees a decline in sunshine compared to the vibrant summer months, which peak at over 400 hours in July and August. However, December's glow is a continuation of the year’s pattern, where sunshine gradually diminishes from November's 204 hours, suggesting that despite the chill, Shumen remains kissed by a calming sunshine that gently fades into the new year. As the landscape transforms into its winter attire, this month serves as a reminder of the sun's enduring presence, even as it retreats to prepare for the longer days ahead.

Monthly Sunshine Duration in Shumen: December Highlighted

The December sunshine duration represents the total number of hours Shumen experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec164h226h278h339h389h391h421h403h337h278h204h190h
Data source: Shumen December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Shumen During December

In Shumen, Bulgaria, December typically sees a 27% chance of sunny weather, reflecting a trend toward lesser sunshine as the year comes to a close. This percentage marks a dip similar to January's, suggesting that winter's chill can often overshadow the sun's rays. Throughout the year, the likelihood of sunny days climbs significantly during the summer months, peaking at 74% in July. By December, however, the bright, sunny days are becoming increasingly rare, falling in line with the overall seasonal shift from the vibrant sunshine of summer to the muted tones of winter. As such, locals and visitors alike might want to keep their umbrellas handy while savoring the fleeting moments of sunshine.

Percentage of Sunny Days in December in Shumen

The chart illustrates the percentage of sunny days in Shumen throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Shumen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%43%43%44%44%45%74%70%55%34%38%27%
Data source: Shumen December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Shumen in December

In Shumen, Bulgaria, daylight duration exhibits a fascinating cycle throughout the year, peaking in the summer months. Starting from a modest 9 hours in December, the days gradually lengthen, surging to a vibrant 15 hours in June, welcoming the warmth of summer. As the year progresses, daylight begins to wane, dropping back to 9 hours by November, before stabilizing at the same length in December. This rhythmic transition emphasizes the stark contrast between the energy of long summer days and the quiet stillness of winter, inviting residents to embrace both the brilliance and tranquility each season offers.

Average Daylight Hours in Shumen for December

The chart illustrates the variation in daylight duration in Shumen throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 22m10h 30m11h 57m13h 25m14h 41m15h 19m14h 59m13h 52m12h 27m10h 59m9h 41m9h 1m
Data source: Shumen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Shumen

In Shumen, Bulgaria, the wind in December picks up, with an average speed of 3.2 m/s (7 mph), mirroring the gusts felt at the beginning of the year. This seasonal shift contrasts with the more tranquil winds of summer, where speeds dip to a mere 2.2 m/s (5 mph) in August. Overall, the wind patterns reflect a gentle ebb and flow throughout the year, with the cold months seeing a slight uptick in speed. February often experiences the calmest breezes at 2.8 m/s (6 mph), while a consistent 2.6 m/s (6 mph) prevails during the fall months. By the time December rolls around, the return to a brisk pace heralds the arrival of winter, invigorating the landscape with a fresh, crisp air.

Average December Wind Speed in Shumen

The chart displays monthly wind speed patterns in Shumen, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.22.83.02.52.82.42.52.22.62.62.63.2 m/s
Data source: Shumen December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Shumen Compares to Other Months

Weather in Shumen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Shumen, focusing on differences in temperature, rainfall, humidity, and UV levels.

December and January exhibit notable differences in weather, with January generally presenting colder temperatures. In December, temperatures range from a minimum of -11°C (13°F) to a maximum of 18°C (64°F), with an average of 4°C (39°F). The month sees considerable precipitation, totaling 66 mm (2.6 in) over 12 days, and humidity levels are high at 87%. Conversely, January experiences even lower temperatures, with a minimum of -17°C (2°F) and an average temperature of 1°C (34°F), peaking at 16°C (61°F). Precipitation in January decreases to 49 mm (1.9 in) over just 7 days, accompanied by a slightly higher humidity of 88%. For a more detailed overview of January's weather, check out Shumen weather in January.

In December, the weather features a more pronounced chill, with temperatures ranging from a minimum of -11°C (13°F) to a maximum of 18°C (64°F). The average temperature is about 4°C (39°F), accompanied by higher precipitation of 66 mm (2.6 in) across approximately 12 days, contributing to a humid environment with 87% humidity. In contrast, February experiences slightly colder nights, with a minimum of -12°C (11°F), but it also has a marginally warmer maximum of 19°C (66°F) and maintains an average of 4°C (39°F). The month sees reduced rainfall, totaling 44 mm (1.7 in) over just 7 days, leading to a slightly drier atmosphere with lower humidity at 84%. For more detailed insights, you can consult Shumen weather in February.

In December, the weather features a chilly climate with temperatures ranging from a minimum of -11°C (13°F) to a maximum of 18°C (64°F), averaging around 4°C (39°F). This month typically experiences around 66 mm (2.6 in) of precipitation over 12 days, accompanied by high humidity at 87%. In contrast, March shows a slightly warmer trend, with temperatures dipping to -13°C (10°F) at night and peaking at 22°C (72°F) during the day, averaging 6°C (43°F). Precipitation remains similar, at 64 mm (2.5 in) over 10 days, but humidity drops to 81%. The transition from December to March indicates not only an increase in average temperatures but also a slight decrease in precipitation and humidity. For more details, you can check Shumen weather in March.

In December, temperatures can plunge as low as -11°C (13°F) and average around 4°C (39°F), creating a chilly atmosphere marked by high humidity at 87%. The month typically experiences 12 days of precipitation, totaling 66 mm (2.6 in), contributing to the wintry conditions. In contrast, April brings a significant shift, with temperatures ranging from a minimum of -2°C (29°F) to a pleasant maximum of 27°C (80°F) and an average of 11°C (52°F). This month sees less rainfall, with only 39 mm (1.6 in) over about 7 days and a decrease in humidity to 70%. For more detailed information about April weather specifically in Shumen, check out Shumen weather in April.

December and May present a striking contrast in weather conditions. In December, temperatures can dip as low as -11°C (13°F), with an average of 4°C (39°F) and a maximum of 18°C (64°F). The month also experiences higher humidity at 87% and sees precipitation over 12 days, totaling 66 mm (2.6 in). Conversely, May boasts milder temperatures, with a minimum of 3°C (37°F), an average of 16°C (62°F), and a maximum of 29°C (84°F). Precipitation during this month is less frequent, occurring over 9 days and accumulating to 51 mm (2.0 in), and the humidity is noticeably lower at 72%. For more details on the weather patterns in May, you can check Shumen weather in May.

In December, temperatures can dip as low as -11°C (13°F) and typically hover around an average of 4°C (39°F), with highs reaching up to 18°C (64°F). The month sees an average of 66 mm (2.6 in) of precipitation over about 12 days, and the humidity remains quite high at 87%. In contrast, June brings a much warmer climate, with temperatures ranging from a minimum of 8°C (46°F) to an average of 21°C (69°F), peaking at 34°C (93°F). Rainfall increases slightly to 99 mm (3.9 in) across 15 days, but the humidity is more moderate at 66%. For further details on the June weather, please visit Shumen weather in June.

December and July present starkly contrasting weather patterns. In December, temperatures range from a chilly -11°C (13°F) to a milder maximum of 18°C (64°F), with an average of just 4°C (39°F). The month is characterized by high humidity at 87% and receives about 66 mm (2.6 in) of precipitation over 12 days. In contrast, July boasts much warmer conditions, with minimum temperatures starting at 13°C (55°F) and soaring to a maximum of 37°C (100°F), averaging 23°C (74°F). This summer month experiences lower humidity at 62% and receives less precipitation, totaling around 50 mm (2.0 in) over just 10 days. For more details, you can check Shumen weather in July.

December and August present contrasting weather conditions. In December, temperatures range from a chilly -11°C (13°F) to a mild 18°C (64°F), with an average of 4°C (39°F). The month sees higher precipitation levels, totaling 66 mm (2.6 in) over about 12 days, accompanied by a high humidity rate of 87%. In stark contrast, August offers much warmer temperatures, with lows of 12°C (53°F) and highs reaching up to 38°C (101°F), averaging around 24°C (75°F). Precipitation is significantly lower in August, with just 21 mm (0.8 in) over 4 days and a humidity level of 48%. For more detailed insights, check out Shumen weather in August.

December and September present starkly contrasting weather conditions. In December, temperatures can drop as low as -11°C (13°F), with an average high of only 4°C (39°F) and substantial precipitation of 66 mm (2.6 in) over 12 days, along with high humidity at 87%. In contrast, September enjoys much milder conditions, with minimum temperatures around 3°C (37°F) and an average high of 19°C (67°F), reaching up to 33°C (91°F). Moreover, September sees significantly less rainfall, with only 19 mm (0.8 in) over just 3 days and lower humidity at 58%. The differences illustrate how September's relatively warm and dry weather sharply contrasts with December's cold and wet characteristics. For more details, you can check Shumen weather in September.

In comparing the weather of October and December, it's clear that December experiences much cooler temperatures, with a minimum of -11°C (13°F) and an average of 4°C (39°F). In contrast, October boasts a milder climate, starting at a minimum of 1°C (34°F) and reaching an average of 13°C (56°F), with highs peaking at 31°C (87°F). Precipitation is also slightly higher in December at 66 mm (2.6 in) over 12 days, compared to 52 mm (2.0 in) over just 6 days in October. Additionally, December has a higher humidity level at 87%, which contributes to the overall chilliness, while October feels relatively more comfortable with 78% humidity. For more detailed information on October weather, you can check Shumen weather in October.

In comparing the weather of December and November, December tends to be colder, with average temperatures ranging from a minimum of -11°C (13°F) to a maximum of 18°C (64°F), while November experiences milder temperatures, with a minimum of -5°C (23°F) and a maximum reaching 26°C (79°F). Precipitation is more frequent in December, occurring over 12 days and totaling 66 mm (2.6 in), compared to November's 7 days and 48 mm (1.9 in). Humidity levels are fairly consistent between the two months, with December at 87% and November at 85%. For more detailed insights, you can refer to Shumen weather in November.

Compare Shumen's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Shumen

As December settles over Shumen, the weather reflects a stark contrast to the milder months preceding it. With temperatures dipping significantly, residents experience the chill of winter, marked by average highs barely reaching 4°C and the occasional plunge to -11°C. This month is also notably wetter, with about 66 mm of precipitation spread across 12 days, giving the landscape a crisp, refreshing feel. The high humidity of 87% adds to the wintery atmosphere, making December a month of cozy indoor gatherings and festive cheer. For a deeper dive into the seasonal trends in Shumen, check out Shumen Climate.