December Weather in Cerknica, Slovenia

Last updated: August 27, 2025

In December, Cerknica, Slovenia experiences a sharp contrast in temperatures, with maximums soaring to 13°C (56°F) while dipping to a chilling minimum of -13°C (9°F). The average temperature rests around a brisk 2°C (36°F), setting a quintessential winter scene. This month also brings considerable precipitation, accumulating to 161 mm (6.3 in) over approximately 11 days, contributing to a damp atmosphere with a notable humidity level of 88%. This seasonal blend creates a unique, striking landscape perfect for exploring the enchanting winter charm of Cerknica.

December Temperature in Cerknica

In December, Cerknica, Slovenia, ushers in the heart of winter, with temperatures reflecting a notable chill in the air. The month typically sees a minimum of around -13°C (9°F), contrasting sharply with a more moderate average of 2°C (36°F) and a maximum that peaks at 13°C (56°F). This transitional phase into winter showcases a slight rise in temperatures compared to the preceding months, particularly November, which hints at a gradual warming trend. As the snow-capped landscapes become a picturesque backdrop, the crisp air invites both locals and visitors to embrace the beauty of the season, making December a delightful time to experience Cerknica's winter charm.

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

The chart illustrates December temperature patterns in Cerknica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cerknica, 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).
JanFebMarAprMayJunJulAugSepOctNovDec333741495666686959514336
Data source: Temperature data for Cerknica 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 Cerknica

In December, Cerknica experiences a significant amount of precipitation, with an average of 161 mm (6.3 inches) spread over 11 days. This places December among the wetter months of the year, following a notably rainy November. The trend of increasing precipitation continues as winter approaches, with December's rainfall contributing to the region's total annual precipitation, which peaks in the spring and early summer months. As the year draws to a close, the consistent rainfall not only enriches the landscape but also sets the stage for a vibrant and lush environment in the months ahead.

December Precipitation Trends in Cerknica

The chart displays monthly precipitation patterns in Cerknica, 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 Cerknica, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7212897115206110130126206127177161
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cerknica

December in Cerknica, Slovenia, sees a return to higher humidity levels, as it registers at 88%—slightly below the November peak of 89%. This month marks a contrast to the drier summer months, particularly July and August, where humidity levels dipped to 63% and 51%, respectively. Throughout the year, we observe a gradual decline in humidity from a high of 88% in January, hitting the lowest point in summer before rising again as the year closes. Thus, December encapsulates a transitional phase, where the chill of winter rekindles the moisture in the air, creating a refreshingly crisp atmosphere as the year draws to a close.

December Average Humidity in Cerknica

This chart illustrates the average monthly humidity levels in Cerknica, 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 Cerknica is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cerknica

As the year comes to a close, December in Cerknica, Slovenia, sees a dip in UV exposure, with the UV Index resting at a low 2. This reduction signals a welcome reprieve from the intense sun experienced during the peak summer months, where readings soared to a very high 9 in June and July. Throughout the year, a pattern emerges: the UV Index climbs steadily from a mild 2 in January, peaking in May and June before beginning its gradual descent back to lower levels. Fortunately, December offers residents and visitors the luxury of longer safe sun exposure, with a burn time of 45 minutes, allowing ample opportunity to enjoy outdoor activities without immediate risk. For a detailed look at the UV Index trends throughout the year, check out Cerknica UV Index.

Maximum UV Index Levels in Cerknica for December

The chart shows the monthly maximum UV Index (UVI) for Cerknica 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 Cerknica typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Cerknica 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 Cerknica

December in Cerknica, Slovenia, ushers in a serene winter atmosphere with its 211 hours of sunshine, a gentle decline from the vibrant light of autumn. As the year nears its end, the days grow shorter, but the sun still graces the landscape with a warm glow, particularly stark against the backdrop of snow-capped mountains. This month marks a subtle transition that follows the brighter summer months, where sunshine peaked at an impressive 429 hours in July. Interestingly, while December's hours are notably less than the summer, they still outshine the darker depths of November's 222 hours, reflecting a resilient spirit as the community gears up for the festive season. In this tranquil setting, December’s moderate sunlight serves as a reminder of the natural beauty that endures through every season.

Monthly Sunshine Duration in Cerknica: December Highlighted

The December sunshine duration represents the total number of hours Cerknica 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.
JanFebMarAprMayJunJulAugSepOctNovDec179h224h313h337h365h413h429h397h322h295h222h211h
Data source: Cerknica December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cerknica During December

As December approaches in Cerknica, Slovenia, the likelihood of sunny weather hovers around 33%, reflecting a modest chance of clear skies. This percentage is consistent with the cooler months, notably exceeding the 22% found in January and slightly above the 26% in November. An interesting trend emerges as autumn transitions into winter: the probability of sunshine fluctuates significantly through the year, peaking in spring with a robust 58% in March, while summer months like June and July provide a more favorable outlook at 51% and 47%, respectively. As December settles in, residents can expect a mix of overcast days, but with a glimmer of sunshine brightening the landscape, urging them to embrace the crisp winter wonderland.

Percentage of Sunny Days in December in Cerknica

The chart illustrates the percentage of sunny days in Cerknica 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 Cerknica experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%33%58%36%33%51%47%49%54%36%26%33%
Data source: Cerknica December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cerknica in December

As the year draws to a close, December in Cerknica, Slovenia, brings a gentle decline in daylight, with the sun gracing the sky for just 8 hours a day. This minimal daylight marks the transition into winter, following a gradual increase from the depths of winter in January (9 hours) to the summer peak of 15 hours in June and July. The pattern shows a clear rhythm: as the days lengthen through spring and peak in summer, they then recede again, mirroring the cyclical nature of the seasons. By December, the earlier sunsets and later sunrises invite a cozy atmosphere, encouraging reflection and warmth as the community embraces the holiday spirit amidst the longer nights.

Average Daylight Hours in Cerknica for December

The chart illustrates the variation in daylight duration in Cerknica throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 6m10h 21m11h 56m13h 33m14h 56m15h 38m15h 16m14h 2m12h 29m10h 52m9h 27m8h 43m
Data source: Cerknica daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Cerknica

As December settles in Cerknica, Slovenia, the average wind speed dips to 2.0 m/s (4 mph), marking a transition into the quieter, more still winter months. Following the brisk gusts of October, which boasted the highest average speed at 3.0 m/s (7 mph), December’s winds reflect a notable decrease in intensity. Throughout the year, wind speed typically hovers around the 2.5 m/s mark during the spring and fall, indicating a mild yet consistent breeziness that characterizes much of the region. However, the drop in December hints at a tranquil close to the year, as the colder temperatures usher in a calming stillness, contrasting the seasonal variability seen earlier in the year.

Average December Wind Speed in Cerknica

The chart displays monthly wind speed patterns in Cerknica, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.92.32.52.51.82.12.12.03.02.62.0 m/s
Data source: Cerknica December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Cerknica Compares to Other Months

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

In December, temperatures range from a chilly -13°C (9°F) to a relatively mild 13°C (56°F), averaging around 2°C (36°F). The month sees significant precipitation, totaling 161 mm (6.3 in) over 11 days, while humidity remains high at 88%. In contrast, January experiences slightly colder conditions, with minimum temperatures dropping to -14°C (7°F) and a maximum of 11°C (52°F), averaging around 0°C (33°F). Precipitation decreases substantially to 72 mm (2.8 in) over 8 days, maintaining the same humidity level of 88%. For more specific details about January weather in Cerknica, check out Cerknica weather in January.

December and February showcase contrasting yet similarly chilly weather patterns. In December, temperatures range from a minimum of -13°C (9°F) to a maximum of 13°C (56°F), with an average of 2°C (36°F). This month experiences higher precipitation with 161 mm (6.3 in) over 11 days, accompanied by a humidity level of 88%. In contrast, February tends to be slightly warmer with temperatures spanning from -12°C (10°F) to a maximum of 19°C (67°F) and an average of 3°C (38°F). Precipitation decreases to 128 mm (5.0 in) across 10 days, reflecting a slight drop in humidity to 82%. For more detailed insights into the weather in February, you can visit Cerknica weather in February.

In December, temperatures in Cerknica range from a chilly minimum of -13°C (9°F) to a maximum of 13°C (56°F), with an average of 2°C (36°F). The month typically experiences high humidity levels at 88%, contributing to a damp atmosphere with substantial precipitation of 161 mm (6.3 in) over about 11 days. In contrast, March brings slightly warmer conditions, characterized by a minimum temperature of -17°C (2°F) and a maximum reaching 21°C (70°F), with a pleasant average of 5°C (42°F). Precipitation decreases to 97 mm (3.8 in), also spread over about 11 days, and humidity drops to 73%. This transition from December to March highlights a shift towards milder weather, making March more inviting for outdoor activities. For more information, check out Cerknica weather in March.

December and April exhibit significant differences in weather patterns. In December, temperatures can drop as low as -13°C (9°F), with an average temperature of 2°C (36°F) and highs reaching 13°C (56°F). The month sees substantial precipitation of 161 mm (6.3 in) over about 11 days, accompanied by high humidity levels of 88%, creating a chilly and damp atmosphere. In contrast, April offers a notable warming trend with minimum temperatures around -10°C (14°F), an average of 10°C (50°F), and maximum temperatures soaring up to 25°C (78°F). Although April experiences slightly more precipitation at 115 mm (4.5 in) over 12 days, the humidity is much lower at 73%, resulting in a fresher feel compared to December. For more detailed insights, check out Cerknica weather in April.

In December, the weather is distinctly cold, with temperatures ranging from a frigid -13°C (9°F) at night to a milder 13°C (56°F) during the day, averaging around 2°C (36°F). The month experiences significant precipitation, totaling 161 mm (6.3 in) over 11 days, paired with high humidity levels at 88%. In contrast, May brings a welcome change with much warmer conditions, where temperatures range from a minimum of 1°C (34°F) to a pleasant maximum of 26°C (79°F), averaging 14°C (57°F). This month is wetter, with 206 mm (8.1 in) of rain spread over 20 days, but humidity is notably lower at 70%. For more detailed information on May's weather, you can visit Cerknica weather in May.

December and June present strikingly different weather patterns. In December, temperatures can plunge to a minimum of -13°C (9°F) while averaging around 2°C (36°F) and peaking at 13°C (56°F). The month is characterized by high humidity at 88% and substantial precipitation totaling 161 mm (6.3 in) over 11 days. In contrast, June brings much warmer conditions with minimum temperatures of 6°C (44°F) and an average of 19°C (67°F), reaching maximums of 35°C (95°F). Although there is still some precipitation in June, totaling 110 mm (4.3 in) over 12 days, the humidity drops to a more comfortable 69%. For those curious about specific weather details, check out Cerknica weather in June.

When comparing the weather in December and July, the stark differences are immediately apparent. December experiences much colder temperatures, with a minimum of -13°C (9°F) and an average of just 2°C (36°F), whereas July enjoys milder conditions with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 33°C (91°F). Precipitation is also noteworthy; December sees more rainfall, measuring 161 mm (6.3 in) over 11 days, compared to July's 130 mm (5.1 in) over 14 days. Furthermore, December's humidity level is significantly higher at 88%, while July maintains a more comfortable humidity of 63%. For more detailed information about July weather in Cerknica, you can visit Cerknica weather in July.

December and August present starkly contrasting weather conditions. In December, temperatures drop to a chilling minimum of -13°C (9°F), averaging around 2°C (36°F) and peaking at a modest 13°C (56°F). The month is characterized by high humidity at 88% and significant precipitation, totaling 161 mm (6.3 in) over about 11 days. In sharp contrast, August boasts a much milder climate with minimum temperatures of 9°C (48°F) and pleasant averages of 20°C (69°F), reaching highs of 34°C (93°F). Though slightly drier, August still sees 126 mm (5.0 in) of precipitation across 13 days, but with significantly lower humidity at 51%. For more information about the weather in August, you can visit Cerknica weather in August.

In December, temperatures in Cerknica can be quite chilly, ranging from a minimum of -13°C (9°F) to a maximum of 13°C (56°F), with an average of about 2°C (36°F). The month is also marked by high humidity levels of 88% and significant precipitation, totaling 161 mm (6.3 in) over about 11 days. In contrast, September offers much milder weather, with temperatures ranging from a minimum of 2°C (36°F) to a warm maximum of 28°C (83°F), averaging around 15°C (60°F). The month sees slightly more rainfall at 205 mm (8.1 in) across 13 days, but the humidity is notably lower at 64%. For a closer look at the weather in September, you can visit Cerknica weather in September.

In comparing the weather between October and December, it is evident that December is significantly colder, with average temperatures hovering around 2°C (36°F) compared to October's milder average of 11°C (52°F). The minimum temperatures in December can plummet to -13°C (9°F), suggesting a sharp contrast in conditions. Additionally, December experiences more precipitation, reaching 161 mm (6.3 in) over 11 days, while October sees slightly less at 127 mm (5.0 in) across 10 days. Humidity levels are also higher in December at 88%, compared to October's 83%. For a detailed look at October's weather, you can visit Cerknica weather in October.

In comparing the weather between December and November, December generally experiences colder temperatures, with a minimum of -13°C (9°F) and an average of 2°C (36°F), whereas November has milder temperatures, ranging from a minimum of -9°C (16°F) and an average of 6°C (43°F). Additionally, December sees slightly less precipitation, totaling 161 mm (6.3 in) over 11 days, compared to November's 176 mm (6.9 in) across 12 days, indicating a marginally drier month. Humidity levels are quite similar, with December at 88% and November at 89%. For more detailed insights into November's weather, you can check Cerknica weather in November.

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Conclusion: What to Expect From December Weather in Cerknica

December in Cerknica brings a notable shift in weather, characterized by cooler temperatures and increased precipitation compared to other months. With an average temperature hovering around 2°C, the month showcases the chilly embrace of winter, frequently dipping to lower extremes. The high humidity levels often amplify the cold feel, while the frequent rain—over 11 days—contributes to a damp environment, setting a cozy backdrop for the festive season. This combination of cool temps and consistent moisture distinguishes December from the milder months of the year. For a deeper dive into what Cerknica has to offer throughout the seasons, check out Cerknica Climate.