December Weather in Karlovac, Croatia

Last updated: March 17, 2025

December in Karlovac, Croatia offers a unique winter experience characterized by temperature fluctuations ranging from a maximum of 18°C (65°F) to a chilling minimum of -11°C (13°F). The month typically averages around 3°C (38°F), creating a crisp atmosphere enhanced by a notable humidity level of 88%. With 104 mm (4.1 in) of precipitation spread across approximately 13 days, residents and visitors can expect a mix of rain and the occasional flurry, making this a month of atmospheric transitions and winter charm in the heart of Croatia.

December Temperature in Karlovac

In December, temperatures in Karlovac, Croatia begin to hint at winter's embrace, with minimums dipping to a chilly -11°C (13°F). The month averages just above freezing at 3°C (38°F), creating a bite in the air that contrasts with its peak of 18°C (65°F). As the year winds down, the landscape transitions from the mild autumn temperatures earlier—where November averaged 7°C (46°F)—to the unmistakable chill of winter. This gradual temperature drop serves as a prelude to the colder months ahead, making December an ideal time for cozy indoor gatherings while savoring the season’s crisp air.

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

The chart illustrates December temperature patterns in Karlovac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec344045536070727263544538
Data source: Temperature data for Karlovac generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Karlovac

In December, Karlovac experiences a notable 104 mm (4.1 in) of precipitation, consistent with the trend of increased rainfall as the year concludes. This month sees 13 days of rain, tying with November for the highest number of precipitation days in the latter part of the year. Interestingly, while the total precipitation is slightly lower than November’s 106 mm, December maintains a significant amount of rainfall that contributes to the region's lush winter landscapes. As temperatures drop, the steady precipitation sets the stage for a cozy, wintry atmosphere, marking the end of the year with a touch of nature's charm.

December Precipitation Trends in Karlovac

The chart displays monthly precipitation patterns in Karlovac, 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.
JanFebMarAprMayJunJulAugSepOctNovDec55815978129718482114103106104
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Karlovac

In December, Karlovac, Croatia experiences a notable humidity level of 88%, marking a slight increase from the previous month. This month sits at the tail end of a seasonal trend where humidity gradually rises from a low of 51% in August to 87% in November, before tapering off slightly in December. Overall, the winter months bring a return of moisture, with January's humidity peaking at 89%. This rhythmic ebb and flow of humidity highlights the region's transition from the drier summer months to the more humid and cooler winter climate, creating an atmosphere that can feel both crisp and soothing as the year comes to a close.

December Average Humidity in Karlovac

This chart illustrates the average monthly humidity levels in Karlovac, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%83%75%72%70%69%64%51%62%81%87%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Karlovac

In December, Karlovac, Croatia experiences a low UV Index of 2, making it one of the mildest months for sun exposure. With a burn time of 45 minutes, residents and visitors can safely enjoy outdoor activities without the intense sun protection needed in the summer months. This trend reflects a gradual decrease in UV radiation from the higher levels observed in the mid-year, where values peaked at 9 during June and July, marking a sharp contrast to the gentle rays of winter. As the end of the year approaches, it's evident that sun safety becomes less critical, but it's always wise to stay informed about the UV Index. For detailed insights, check out the Karlovac UV Index.

Maximum UV Index Levels in Karlovac for December

The chart shows the monthly maximum UV Index (UVI) for Karlovac 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986532
Data source: Karlovac 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 Karlovac

In December, Karlovac, Croatia, enjoys 204 hours of sunshine, marking a gentle decline as the year draws to a close. While this amount is notably higher than the gray days of November—which sees only 189 hours—it reflects a shift from the sun-drenched summer months where July shines the brightest with 424 hours. The gradual tapering of daylight as winter approaches is typical for this region, yet December still offers a warm embrace of sunlight, inviting locals and visitors alike to relish its charm amidst the crisp air. As the year transitions, the flicker of sunshine continues to illuminate the path towards spring, reminding us of the vibrant days to come.

Monthly Sunshine Duration in Karlovac: December Highlighted

The December sunshine duration represents the total number of hours Karlovac 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.
JanFebMarAprMayJunJulAugSepOctNovDec161h223h307h333h367h404h424h390h323h288h189h204h
Data source: Karlovac December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Karlovac During December

In December, the likelihood of sunny weather in Karlovac, Croatia, stands at 31%, a slight uplift from the dreary 20% seen in November. As the year winds down, residents and visitors can expect occasional breaks in the clouds, reminiscent of the sunnier months that precede December. While January typically offers the least sunshine at 27%, daylight gradually increases through the chilly winter months, reaching a peak of 44% by February. This trend indicates that while December may not be abundant in sunshine, it hints at a gradual return to brighter days as the new year approaches.

Percentage of Sunny Days in December in Karlovac

The chart illustrates the percentage of sunny days in Karlovac 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 Karlovac experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%44%59%41%37%58%50%50%55%36%20%31%
Data source: Karlovac December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Karlovac in December

As December settles over Karlovac, Croatia, daylight begins to wane, casting the city into a cozy, twilight ambiance. With just 8 hours of daylight, this month marks the lowest point of the year, contrasting sharply with the vibrant 15 hours enjoyed in both June and July. The gradual decrease from the bright days of summer is a rhythmic shift, where daylight durations begin in January at 9 hours and follow a steady increase through the spring. By the time December arrives, the transition ushers in a serene, perhaps introspective season, inviting residents to embrace the long, dark nights and the warmth of their celebrations.

Average Daylight Hours in Karlovac for December

The chart illustrates the variation in daylight duration in Karlovac throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 7m10h 22m11h 56m13h 32m14h 55m15h 37m15h 15m14h 1m12h 29m10h 53m9h 28m8h 44m
Data source: Karlovac daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Karlovac

December in Karlovac, Croatia, sees a gentle breeze with an average wind speed of 1.6 m/s (4 mph), similar to the calmer conditions of late summer and autumn. This month marks a continuation of the trend observed since June, where wind speeds have gradually decreased, settling into a more tranquil rhythm as the landscape prepares for winter. The drop from the more consistent speeds of earlier months creates a serene atmosphere, perfect for cozying up indoors while watching the soft dance of snowflakes that may occasionally accompany the December air. Overall, the wind here transitions from a lively whisper to a subdued breath, echoing the peacefulness of the season.

Average December Wind Speed in Karlovac

The chart displays monthly wind speed patterns in Karlovac, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.12.02.02.11.61.71.61.62.01.61.6 m/s
Data source: Karlovac December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Karlovac Compares to Other Months

The weather in Karlovac changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Karlovac and find detailed weather information for every month.

December and January present distinctly different weather patterns. In December, temperatures range from a minimum of -11°C (13°F) to a maximum of 18°C (65°F), with an average of 3°C (38°F). This month also experiences considerable precipitation, totaling 104 mm (4.1 in) over 13 days, coupled with a high humidity level of 88%. In contrast, January tends to be colder, with temperatures dipping to a minimum of -16°C (3°F) and peaking at 16°C (61°F), leading to an average temperature of 1°C (34°F). Precipitation is lower in January, amounting to 55 mm (2.1 in) over 10 days, and humidity rises slightly to 89%. For further details on January weather, check out Karlovac weather in January.

When comparing the weather in December and February, December tends to be slightly colder, with average temperatures hovering around 3°C (38°F) and a maximum of 18°C (65°F). It sees more precipitation, with a total of 104 mm (4.1 in) over 13 days, along with higher humidity levels at 88%. In contrast, February offers a milder climate, with an average temperature of 4°C (40°F) and a higher maximum of 21°C (70°F). Precipitation decreases to 81 mm (3.2 in) over 10 days, and humidity drops to 83%. For a more detailed look at February weather, you can explore Karlovac weather in February.

December and March showcase notable differences in weather conditions. In December, temperatures range from a minimum of -11°C (13°F) to a maximum of 18°C (65°F), with an average of 3°C (38°F). The month experiences higher precipitation at 104 mm (4.1 in) over 13 days, along with a humidity level of 88%. In contrast, March features slightly colder temperatures, with a minimum of -13°C (9°F) and a maximum of 23°C (73°F), while the average rises to 7°C (45°F). Precipitation decreases to 59 mm (2.3 in) over 9 days, and humidity drops to 75%. For more detailed insights on March weather, you can visit Karlovac weather in March.

December's weather is characterized by colder temperatures, with a minimum of -11°C (13°F) and an average of 3°C (38°F), while the maximum can reach up to 18°C (65°F). The month experiences significant precipitation, averaging 104 mm (4.1 in) over 13 days, accompanied by high humidity levels of 88%. In contrast, April brings a milder climate, with minimum temperatures around -10°C (14°F) and an average of 11°C (53°F), peaking at 29°C (84°F). Precipitation is lower at 78 mm (3.1 in) over 10 days and humidity drops to 72%. For more detailed information, you can check Karlovac weather in April.

December weather is characterized by colder temperatures, with lows reaching -11°C (13°F) and an average of around 3°C (38°F). The month experiences significant humidity at 88% and a total precipitation of 104 mm (4.1 in) over approximately 13 days. Conversely, May offers a much warmer climate, featuring minimum temperatures of 1°C (35°F) and an average high of 16°C (61°F), climbing up to a maximum of 31°C (89°F). Although May sees slightly higher precipitation at 129 mm (5.1 in) spread over 18 days, the humidity is significantly lower at 70%. For more detailed information on weather conditions during this transition into summer, check out Karlovac weather in May.

December and June showcase a stark contrast in weather patterns. December sees temperatures ranging from a chilly -11°C (13°F) to a mild 18°C (65°F), with an average of around 3°C (38°F). The month experiences significant precipitation, totaling 104 mm (4.1 in) over approximately 13 days, coupled with high humidity levels averaging 88%. In contrast, June brings much warmer conditions with temperatures ranging from a minimum of 7°C (45°F) to a scorching maximum of 36°C (98°F) and an average of 21°C (71°F). This month is drier, with only 71 mm (2.8 in) of precipitation occurring over about 9 days, and humidity dropping to 69%. For more information on the delightful June weather, check out Karlovac weather in June.

In December, the weather is markedly colder, with temperatures ranging from a frigid minimum of -11°C (13°F) to a comfortable maximum of 18°C (65°F), averaging around 3°C (38°F). The month also sees considerable precipitation, with 104 mm (4.1 in) spread over 13 days and a high humidity level of 88%. In sharp contrast, July offers much warmer conditions, with temperatures ranging from a minimum of 9°C (49°F) to a scorching maximum of 36°C (97°F) and an average of 22°C (73°F). Precipitation in July is lower at 84 mm (3.3 in), occurring over just 10 days, and the humidity drops to a more comfortable 64%. For a deeper look at July weather patterns, check out Karlovac weather in July.

In comparing the weather between December and August, it's striking how vastly different the conditions are. December features a chilly temperature range from a minimum of -11°C (13°F) to a maximum of 18°C (65°F), averaging around 3°C (38°F). The month is characterized by high humidity at 88% and significant precipitation, amounting to 104 mm (4.1 in) over 13 days. In contrast, August boasts a much warmer climate, with temperatures ranging from a minimum of 8°C (47°F) to a scorching maximum of 40°C (104°F), averaging 22°C (73°F). With lower humidity at 51% and less rainfall, totaling 82 mm (3.2 in) over 9 days, August presents a decidedly more pleasant and drier atmosphere. For a closer look at the weather specifics in August, you can visit Karlovac weather in August.

December and September present significantly different weather patterns. In December, temperatures can drop as low as -11°C (13°F), with an average temperature of 3°C (38°F) and a maximum of 18°C (65°F). The month experiences about 104 mm (4.1 in) of precipitation over approximately 13 days, coupled with high humidity levels at 88%. In contrast, September boasts more moderate temperatures, ranging from a minimum of 3°C (38°F) to an average of 17°C (63°F), peaking at 34°C (93°F). The precipitation in September is slightly higher at 114 mm (4.5 in) across about 11 days, but the humidity is notably lower at 62%. This comparison highlights the stark transition from the cold and damp December to the warmth and relative dryness of September. For more details, you can refer to Karlovac weather in September.

In comparing the weather between December and October, December presents a notable drop in temperatures, with a minimum of -11°C (13°F) and an average of 3°C (38°F), while October boasts much milder conditions, featuring a minimum of 0°C (32°F) and an average of 12°C (54°F). Precipitation levels are quite similar, with December receiving 104 mm (4.1 in) over 13 days and October slightly lower at 102 mm (4.0 in) across 9 days. Additionally, December has higher humidity at 88%, compared to October's 81%, suggesting a more damp and colder feel during the colder month. For a more detailed look at October weather, visit Karlovac weather in October.

December typically sees colder temperatures compared to November, with a significant drop in the minimum from -4°C (26°F) in November to -11°C (13°F) in December. The average temperature also declines from 7°C (46°F) in November to 3°C (38°F) in December, despite both months experiencing similar maximum temperatures. Precipitation levels remain relatively comparable, with December experiencing 104 mm (4.1 in) over 13 days, slightly less than November's 106 mm (4.2 in) over the same number of days. Humidity levels are also fairly consistent, hovering around 88% in December compared to 87% in November. For more details on November weather, you can check Karlovac weather in November.

Compare Karlovac's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Karlovac

As December settles in, Karlovac transforms into a chilly wonderland, showcasing a stark contrast to the milder months preceding it. With an average temperature consistently dropping to around 3°C, and the occasional peak reaching a maximum of 18°C, winter firmly grips the region, bringing with it higher humidity levels and increased precipitation—over 100 mm spread across about 13 days. This month embodies the essence of winter, highlighted by crisp air and frosty nights, as temperatures can plunge as low as -11°C. For those looking to understand the full scope of Karlovac's climate, December presents a unique experience that strongly differs from the balmy, sun-filled days of the previous seasons. Explore more about the weather nuances in this charming city at Karlovac Climate.