December Weather in Groznjan, Croatia

Last updated: March 17, 2025

In December, Groznjan, Croatia experiences a dynamic mix of winter weather, with temperatures ranging from a brisk -1°C (30°F) at night to a comfortable 15°C (60°F) during the day. The average temperature hovers around 7°C (44°F), making it crucial for visitors to bundle up while exploring this charming town. This month is also notable for its high humidity of 88% and significant rainfall, totaling approximately 150 mm (5.9 in) over about 12 days. With its enchanting scenery and cooler temperatures, Groznjan transforms into a picturesque winter haven, inviting travelers to embrace the seasonal charm.

December Temperature in Groznjan

As December settles over Grožnjan, Croatia, a crisp chill permeates the air, marking a clear transition into winter. Temperatures dip, with lows around -1°C (30°F), while average highs reach a mild 15°C (60°F). This month showcases a notable decline from the more temperate autumn months, hinting at the onset of colder weather. The average temperature of 7°C (44°F) reflects a shift from the more oppressive summer heat, inviting residents and visitors alike to don warmer clothing and embrace the charm of this picturesque town in its winter attire. The gradual cooling trend from November sets the stage for December as Grožnjan transforms into a serene winter landscape, perfect for cozy gatherings and festive celebrations.

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

The chart illustrates December temperature patterns in Groznjan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404448556272757668595144
Data source: Temperature data for Groznjan 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 Groznjan

In Groznjan, Croatia, December typically sees a notable increase in precipitation, with 150 mm (5.9 in) of rain spreading across about 12 days. This makes it one of the wetter months of the year, following a particularly rainy November that recorded 176 mm (6.9 in). As winter approaches, the region experiences a shift in weather patterns, resulting in consistently high precipitation. The trend from late autumn through December indicates that Groznjan residents should be prepared for frequent rain, as the lush landscapes flourish with moisture during this time, creating a captivating and vibrant winter atmosphere.

December Precipitation Trends in Groznjan

The chart displays monthly precipitation patterns in Groznjan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5611872103142876570164107176150
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Groznjan

In Groznjan, Croatia, December marks the return of elevated humidity levels, reaching 88%, reminiscent of the high figures seen at the start of the year. The year begins with very high humidity in January, gradually decreasing throughout the warmer months, hitting a low of 51% in August. As autumn settles in, humidity rises again, with both October and November presenting damp conditions, before stabilizing in December. This cyclical pattern highlights Groznjan's transition from dry summer air back to the moisture-laden atmosphere of winter, creating a unique blend of experiences for locals and visitors alike.

December Average Humidity in Groznjan

This chart illustrates the average monthly humidity levels in Groznjan, 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.
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 Groznjan

In December, Groznjan, Croatia, experiences a low UV Index of 2, which translates to a burn time of 45 minutes. This month marks a notable shift in the annual trend, as the UV Index decreases significantly from the very high levels of 8 and 9 during the summer months of May through August. As winter sets in, the protective effects of seasonal clothing and reduced sun exposure become increasingly relevant. It's a refreshing reprieve for those mindful of skin safety, allowing for longer outdoor activities without the immediate risk of sunburn. Overall, December’s mild UV conditions offer a gentle reminder to stay sun-savvy even in cooler months. For detailed insights, visit Groznjan UV Index.

Maximum UV Index Levels in Groznjan for December

The chart shows the monthly maximum UV Index (UVI) for Groznjan 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: Groznjan 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 Groznjan

In December, Groznjan, Croatia, experiences a gentle retreat from the exuberant sunshine of the summer months, with 207 hours of daylight illuminating the quaint charm of this picturesque town. While this marks a decline in sunlight as the year closes, the trend reveals an overall journey of increasing brightness from the chilly January skies, which start at a modest 182 hours. The gradual ascent peaks in the basking summer months, where July shines most brightly with 430 hours. As seasons shift, December’s moderate light complements the town's cozy ambiance, inviting visitors to enjoy its serene winter landscape while still reflecting on the vibrant sunshine that defined the earlier months. This transition, from lush summer days to the calm of winter, beautifully embodies Groznjan’s diverse climatic tapestry throughout the year.

Monthly Sunshine Duration in Groznjan: December Highlighted

The December sunshine duration represents the total number of hours Groznjan 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.
JanFebMarAprMayJunJulAugSepOctNovDec182h223h315h344h372h417h430h397h326h293h229h207h
Data source: Groznjan December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Groznjan During December

In December, Groznjan, Croatia, sees a modest chance of sunny weather with only a 38% likelihood of sunshine. As the year winds down, this percentage suggests a slight dip in brightness compared to the bustling summer months, where the chances soared above 60% in July and August. Interestingly, December follows a trend of declining sunshine probability, particularly from the vibrant autumn months, with November starting at a 37% chance. While December may not boast the sun-drenched days typical of earlier months, it still offers a possibility for some cheerful rays amid the winter chill, creating a perfect backdrop for the picturesque charm of this historic village.

Percentage of Sunny Days in December in Groznjan

The chart illustrates the percentage of sunny days in Groznjan 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 Groznjan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%41%63%44%40%55%51%61%59%50%37%38%
Data source: Groznjan December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Groznjan in December

In Groznjan, Croatia, the shifting daylight hours throughout the year reveal a rhythmic play of light and shadow. As the calendar turns towards December, daylight dwindles to a brief 8 hours, marking the year's shortest days. This decline traces a gentle slope from the sun-soaked heights of 15 hours in June and July, gradually giving way to a more subdued 10 hours in the fall. The transition from November's 9 hours echoes the seasonal pull, ushering in a cozy ambiance that characterizes winter. Each month encapsulates the essence of time passing, with daylight settling into a slumber, only to awaken again as spring approaches.

Average Daylight Hours in Groznjan for December

The chart illustrates the variation in daylight duration in Groznjan throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 8m10h 22m11h 56m13h 32m14h 55m15h 37m15h 15m14h 1m12h 29m10h 53m9h 28m8h 44m
Data source: Groznjan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Groznjan

As December arrives in Groznjan, Croatia, the landscape shifts with the gentle caress of cooler winds, averaging 2.3 m/s (5 mph). This marks a notable dip compared to the preceding months, especially after a notable increase in November when the winds picked up to 3.7 m/s (8 mph). The transition into winter sees a consistent pattern: from the breezy whispers of spring and early summer, winds tend to mellow out, peaking in October and November before winding down into the more tranquil December days. This seasonal fluctuation not only paints a portrait of changing weather but also invites a sense of stillness, perfect for exploring Groznjan's charming streets and scenery.

Average December Wind Speed in Groznjan

The chart displays monthly wind speed patterns in Groznjan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.02.82.63.03.22.22.52.82.43.63.72.3 m/s
Data source: Groznjan December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Groznjan Compares to Other Months

The weather in Groznjan 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 Groznjan and find detailed weather information for every month.

In December, the weather can be quite mild compared to January, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 15°C (60°F) and an average of 7°C (44°F). December also sees higher precipitation levels, totaling 150 mm (5.9 in) over approximately 12 days, while maintaining a high humidity of 88%. In contrast, January experiences colder temperatures, with a minimum of -7°C (20°F) and a maximum of 13°C (56°F) and an average of 5°C (41°F). Precipitation in January is significantly lower at 56 mm (2.2 in), occurring over just 7 days, yet humidity remains the same at 88%. For more detailed information, you can check Groznjan weather in January.

In December, the weather is generally milder with average temperatures around 7°C (44°F) and a maximum reaching 15°C (60°F), while nighttime lows can dip to -1°C (30°F). The month sees a significant amount of precipitation, approximately 150 mm (5.9 in) over 12 days, and maintains a high humidity level of 88%. In contrast, February experiences colder nights with temperatures dropping to a minimum of -6°C (22°F). The average remains the same at 7°C (44°F), but daytime highs can climb to a warmer 19°C (67°F). Precipitation decreases to about 118 mm (4.6 in) across 10 days, with humidity slightly lower at 82%. For more detailed insights, check out Groznjan weather in February.

December weather is characterized by cooler temperatures, with averages around 7°C (44°F) and maximums reaching 15°C (60°F), while humidity is quite high at 88%. In contrast, March experiences slightly milder conditions, boasting an average temperature of 9°C (48°F) and maximums peaking at 21°C (70°F). Additionally, March sees significantly less precipitation at 71 mm (2.8 in) over approximately 8 days, compared to December's 150 mm (5.9 in) over 12 days. This reduction in rainfall is complemented by a drop in humidity to 73%. For more detailed insights about March weather, you can check Groznjan weather in March.

December weather is characterized by cooler temperatures, with a minimum of -1°C (30°F) and an average of 7°C (44°F), peaking at 15°C (60°F). The month also sees considerable precipitation, totaling 150 mm (5.9 in) over about 12 days, along with high humidity levels at 88%. In contrast, April marks a transition to milder weather, where temperatures range from a minimum of 1°C (34°F) to an average of 13°C (55°F) and a maximum of 25°C (77°F). Precipitation decreases to 103 mm (4.0 in) across roughly 10 days, and humidity drops to 73%. For a more detailed look at what to expect in April, check out Groznjan weather in April.

In December, temperatures in Groznjan range from a chilly -1°C (30°F) at night to a mild 15°C (60°F) during the day, with an average temperature of around 7°C (44°F). The month sees significant precipitation, totaling 150 mm (5.9 in) over approximately 12 days, accompanied by a high humidity level of 88%. In contrast, May brings a noticeable warming trend, with nighttime lows of 7°C (46°F) and daytime highs reaching up to 27°C (81°F), resulting in an average temperature of 17°C (63°F). Although May experiences a similar amount of precipitation at 142 mm (5.6 in), it does so over 17 days, and the humidity decreases to a more comfortable 70%. This shift from the cold and wet December to the warm and drier climate of May highlights the seasonal changes in Groznjan. For more detailed insights, check out Groznjan weather in May.

December and June present strikingly different weather patterns. In December, temperatures can drop to a chilly minimum of -1°C (30°F), with an average of 7°C (44°F) and a maximum of 15°C (60°F). This month is also characterized by abundant precipitation, averaging 150 mm (5.9 in) over 12 days, contributing to a high humidity level of 88%.

In contrast, June welcomes warmer temperatures with a minimum of 11°C (53°F), an average of 22°C (72°F), and peaks at a maximum of 33°C (92°F). Rainfall is less frequent, totaling 87 mm (3.4 in) across just 8 days, and the humidity is lower at 69%. For more specific insights into the delightful weather of June in Grožnjan, you can check Groznjan weather in June.

December and July present two starkly contrasting weather experiences. In December, temperatures range from a chilly minimum of -1°C (30°F) to a mild maximum of 15°C (60°F), with an average of 7°C (44°F). The month is relatively wet, receiving around 150 mm (5.9 in) of precipitation over approximately 12 days, and the humidity is high at 88%. In contrast, July brings warm weather with minimum temperatures around 16°C (61°F) and soaring highs up to 33°C (91°F), averaging at 24°C (75°F). Rainfall is significantly less, totaling about 65 mm (2.6 in) across just 8 days, coupled with lower humidity levels at 63%. For a closer look at the warmth of July, you can check Groznjan weather in July.

When comparing the weather of December and August, there is a stark contrast in both temperature and humidity. December sees cooler temperatures, with a minimum of -1°C (30°F) and an average of 7°C (44°F), accompanied by high humidity levels at 88%. In contrast, August boasts much warmer conditions, featuring a minimum of 15°C (59°F) and an average of 25°C (77°F), with maximum temperatures reaching up to 34°C (94°F) and significantly lower humidity at 51%. Additionally, December experiences more precipitation, totaling 150 mm (5.9 in) over 12 days, whereas August has only 70 mm (2.7 in) across 7 days. For a closer look at the weather specifics in August, you can visit Groznjan weather in August.

December weather is generally much cooler and wetter compared to September. In December, temperatures range from a chilly min of -1°C (30°F) to a pleasant max of 15°C (60°F), with an average of 7°C (44°F). The month sees approximately 150 mm (5.9 in) of precipitation over 12 days, accompanied by high humidity at 88%. In contrast, September offers warmer temperatures with a minimum of 9°C (49°F) and a maximum reaching up to 32°C (90°F), averaging around 20°C (68°F). Although September experiences slightly more precipitation at 164 mm (6.4 in) across just 10 days, the humidity is significantly lower at 64%. For more details about the weather in Groznjan during September, visit Groznjan weather in September.

In comparing December and October weather, we see a notable shift in temperatures and other atmospheric conditions. October experiences milder temperatures with a minimum of 6°C (44°F), an average of 15°C (59°F), and a maximum of 23°C (74°F), making it a generally pleasant month. In contrast, December temperatures drop significantly, with a minimum of -1°C (30°F) and an average of only 7°C (44°F), peaking at 15°C (60°F). Additionally, while both months see similar days of precipitation, December has a higher total rain volume of 150 mm (5.9 in) over 12 days compared to October's 107 mm (4.2 in) over 10 days. Humidity also rises slightly in December to 88%, compared to October's 83%. For more detailed insights into October's climate, visit Groznjan weather in October.

December weather tends to be cooler than November, with average temperatures dropping from 11°C (52°F) in November to 7°C (44°F) in December. The minimum temperatures in December can reach as low as -1°C (30°F), while November only dips to 1°C (34°F). Precipitation levels are slightly lower in December at 150 mm (5.9 in) compared to 176 mm (6.9 in) in November, but both months see rainfall on about 12 days. Humidity remains relatively high in both months, with December at 88% and November at 89%. For more details, check Groznjan weather in November.

Compare Groznjan's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Groznjan

As December sets in, Groznjan embraces a significant shift in weather, offering a mix of cool temperatures and increased moisture that distinguishes it from the milder months of autumn. With chilly nights that drop below freezing and daytime highs that barely reach the mid-teens, this month brings a refreshing crispness that can be invigorating for those who appreciate the charm of winter. The notable humidity and frequent rainfall, totaling around 150 mm over 12 days, add to the atmosphere, making December a month where nature's beauty is enriched by a glistening veil of mist and rain. For a deeper insight into how Groznjan's climate varies throughout the year, explore Groznjan Climate.