December Weather in Cozia, Romania

Last updated: August 27, 2025

December in Cozia, Romania presents a picturesque yet chilly landscape, with average temperatures hovering around 1°C (35°F). The month experiences maximum highs of 15°C (60°F) and can plunge to a brisk minimum of -16°C (3°F). December is also marked by considerable precipitation, totaling 51 mm (2.0 in) over 11 days, contributing to a humidity level of 88% that blankets the region. As the year draws to a close, visitors can expect a blend of winter’s beauty and cool, damp conditions, perfect for cozy escapes in this serene Romanian haven.

December Temperature in Cozia

In Cozia, Romania, December marks a significant transition into winter, with temperatures showcasing a notable chill. The month begins with minimums dropping to -16°C (3°F), paired with an average temperature of just 1°C (35°F), providing a stark contrast to the milder conditions experienced in November. Daytime highs can reach a comfortable 15°C (60°F), but the cold nights remind residents of the season's arrival. Compared to the preceding months, December's temperatures firmly establish a wintry character, as the region transitions from the last remnants of autumn's mildness to the heart of winter. As the year draws to a close, visitors can expect to bundle up and enjoy the magical winter landscape that Cozia has to offer.

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

The chart illustrates December temperature patterns in Cozia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cozia, 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).
JanFebMarAprMayJunJulAugSepOctNovDec293440516170727364534335
Data source: Temperature data for Cozia 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 Cozia

In Cozia, Romania, December marks a significant transition in precipitation patterns, bringing an average of 51 mm (2.0 in) over 11 days of the month. This notable increase in rainfall compared to the lighter 26 mm (1.0 in) recorded in both January and November hints at the wettest phase of the year as winter settles in. The precipitation begins to approach the mid-range levels seen in the spring months, suggesting a shift towards more consistent moisture. With December's days of rain doubling those of previous months like October and November, it's a time when the landscape is refreshed and vibrant, preparing for the colder months ahead. The culmination of wet weather in December resonates with the year-round patterns, where spring and summer months consistently outpoured, peaking in June, but December indeed asserts itself as a noteworthy finale to the annual cycle of precipitation.

December Precipitation Trends in Cozia

The chart displays monthly precipitation patterns in Cozia, 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 Cozia, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec263337386393603727342651
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cozia

As December settles over Cozia, Romania, humidity levels begin to rise again, reaching a notable 88%. This month marks a gradual increase from the cooler, drier summer months of July and August, where humidity dropped to a comfortable 63% and 50%, respectively. Following a transient dip in May and June, when humidity reached its lowest at 69%, the environment becomes more humid as autumn transitions into winter. Notably, November also sees a high humidity of 87%, laying the groundwork for December’s sultry atmosphere. This pattern underscores a distinct trend: as the year winds down, the moisture in the air tends to reclaim its dominance, exemplifying the seasonal rhythms of Cozia's climate.

December Average Humidity in Cozia

This chart illustrates the average monthly humidity levels in Cozia, 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 Cozia is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%84%78%69%69%63%50%58%78%87%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cozia

In Cozia, Romania, the UV Index sees a notable seasonal variation throughout the year. December, with a UV Index of 2, falls into the low exposure category, making it a safe time for outdoor activities with a generous burn time of 45 minutes. This is a stark contrast to the very high indices of May through July, where protective measures become essential due to a sharp increase in UV radiation. As the year transitions back into winter, the UV levels decline again, similar to January's low exposure conditions. For further insights on daily levels of UV exposure, visit Cozia UV Index.

Maximum UV Index Levels in Cozia for December

The chart shows the monthly maximum UV Index (UVI) for Cozia 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 Cozia typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689977432
Data source: Cozia 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 Cozia

In Cozia, Romania, December greets visitors with a whisper of winter, delivering around 150 hours of sunshine as the year draws to a close. This dark month marks a stark contrast to the bright summer days when sunlight peaked at 433 hours in July. As autumn fades, the gradual decline in daylight is apparent; from the lush 402 hours of May to the more muted hues of fall, the sunlight hours diminish significantly. Interestingly, December’s sunshine mirrors that of January, indicating a somewhat waning cycle of brightness during the colder months. The year’s end not only wraps up the annual sunlight tale but also invites a reflective pause in the enchanting scenery, where even the lesser light of December casts a serene charm over the Cozia landscape.

Monthly Sunshine Duration in Cozia: December Highlighted

The December sunshine duration represents the total number of hours Cozia 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.
JanFebMarAprMayJunJulAugSepOctNovDec150h210h298h347h402h411h433h409h336h286h197h150h
Data source: Cozia December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cozia During December

In Cozia, Romania, the chance of sunny weather takes a notable dip in December, dropping to a mere 16%. This reflects a broader trend of decreasing sunlight as the year progresses. While early months like January and February offer modest sunshine opportunities at 28% and 31%, respectively, the likelihood gradually increases through spring, peaking in the summer months, especially July and August with 55% and 59% chances, respectively. However, as we transition back into winter, the sun becomes elusive again, with November only seeing a 38% likelihood before December's notable decline. This pattern illustrates the stark contrast between the sun-drenched warmth of summer and the cloudy, cooler days of winter in this picturesque region.

Percentage of Sunny Days in December in Cozia

The chart illustrates the percentage of sunny days in Cozia 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 Cozia experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%31%37%48%40%37%55%59%48%50%38%16%
Data source: Cozia December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cozia in December

In Cozia, Romania, December marks the return to shorter days, with daylight lasting just 8 hours. This reduction reflects a gradual decline that begins in the late autumn, as the daylight shrinks from a peak of 15 hours in the summer months of June through August. As winter approaches, the daylight dwindles steadily, transitioning from 11 hours in March to the stark 8 hours seen in December, mirroring the seasonal rhythm of shorter, chillier days. Significantly, the trend illustrates a biannual cycle where summer days are long and vibrant, while winter brings a quiet retreat into darkness, inviting cozy indoor moments against the backdrop of Cozia's serene landscape.

Average Daylight Hours in Cozia for December

The chart illustrates the variation in daylight duration in Cozia throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 59m10h 17m11h 55m13h 36m15h 3m15h 47m15h 24m14h 7m12h 30m10h 50m9h 21m8h 34m
Data source: Cozia daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Cozia

As winter settles in around Cozia, Romania, December brings a slight uptick in average wind speed, reaching 3.3 m/s (7 mph). This increase contrasts with the gentler breezes of the summer months, particularly July and August, where wind speeds dipped to around 2.4 to 2.5 m/s (5-6 mph). Notably, the early winter months reveal a trend of gradually rising winds, from 2.8 m/s in January to 3.1 m/s by November, culminating in the brisker gusts seen in December. This pattern showcases a transition that enhances the cold winter atmosphere and invigorates the landscape, making Cozia a fascinating spot for those captivated by nature’s seasonal changes.

Average December Wind Speed in Cozia

The chart displays monthly wind speed patterns in Cozia, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.83.13.22.63.03.12.42.52.62.52.93.3 m/s
Data source: Cozia December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Cozia Compares to Other Months

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

In December, temperatures range from a low of -16°C (3°F) to a high of 15°C (60°F), resulting in a relatively mild average of 1°C (35°F). The month experiences 51 mm (2.0 in) of precipitation over 11 days, coupled with high humidity levels of 88%. In contrast, January sees a drop in minimum temperatures to -20°C (-4°F) and an average temperature of -1°C (30°F), with a maximum of 13°C (55°F). This month has significantly less precipitation, totaling 26 mm (1.0 in) over just 4 days, while humidity remains slightly higher at 89%. For a more detailed look at winter conditions, check out Cozia weather in January.

In December, temperatures range from a chilly -16°C (3°F) to a maximum of 15°C (60°F), averaging around 1°C (35°F). The month experiences 51 mm (2.0 in) of precipitation over 11 days, accompanied by a humidity level of 88%. In contrast, February sees even colder minimum temperatures, dropping to -21°C (-5°F), although the maximum can reach up to 18°C (65°F), with an average of 1°C (34°F). Precipitation is lighter in February, totaling 33 mm (1.3 in) across 7 days, and humidity remains relatively high at 87%. For a more detailed look at February weather in particular, check out Cozia weather in February.

December and March present contrasting weather patterns. In December, temperatures range from a chilly minimum of -16°C (3°F) to a mild maximum of 15°C (60°F), with an average of 1°C (35°F). The month experiences higher humidity at 88% and more precipitation, totaling 51 mm (2.0 in) over about 11 days. In contrast, March exhibits a slightly wider temperature range, with minimums dropping to -18°C (0°F) and maximums reaching 22°C (72°F), averaging 5°C (41°F). This month sees less precipitation, at 37 mm (1.5 in) over around 8 days, and a slightly lower humidity level of 84%. For a more detailed look at March weather, visit Cozia weather in March.

In December, temperatures can drop significantly, with a minimum of -16°C (3°F) and an average of around 1°C (35°F), while the maximum may reach 15°C (60°F). This month also experiences higher humidity levels at 88% and more frequent precipitation, averaging 51 mm (2.0 in) over 11 days.

In contrast, April brings a noticeable warming trend, with temperatures ranging from a minimum of -6°C (22°F) to a pleasant average of 11°C (51°F), peaking at 27°C (82°F). The precipitation is less frequent and lighter, totaling 38 mm (1.5 in) over just 6 days, and humidity decreases to 78%.

For more insights on the weather during this time, check out Cozia weather in April.

In December, the weather is characterized by chillier temperatures, with a minimum of -16°C (3°F) and an average of just 1°C (35°F), peaking at a maximum of 15°C (60°F). This month also sees a higher humidity level at 88%, contributing to the feeling of cold. In contrast, May welcomes warmer conditions with temperatures ranging from a minimum of 3°C (37°F) to an average of 16°C (61°F), and a maximum reaching 30°C (87°F). Although May experiences slightly more precipitation at 63 mm (2.5 in), the humidity is notably lower at 69%. For a closer look at the pleasant conditions in May, check out Cozia weather in May.

When comparing the weather in December and June, a stark contrast emerges. December sees temperatures ranging from a frigid minimum of -16°C (3°F) to a slightly warmer average of 1°C (35°F), peaking at a maximum of 15°C (60°F). This month is also characterized by high humidity at 88% and an average of 11 days with precipitation totaling 51 mm (2.0 in). In contrast, June enjoys a much milder climate, with temperatures starting at a minimum of 7°C (45°F) and averaging 21°C (70°F), reaching highs of 33°C (91°F). Although June has slightly more precipitation at 93 mm (3.6 in) over 14 days, the humidity is significantly lower at 69%. This transformation from the cold and damp December to the warm and humid June highlights the seasonal shifts that can be expected. For more details on the weather during this month, check out Cozia weather in June.

The weather in December and July presents a stark contrast, highlighting the seasonal variations. In December, temperatures can plunge as low as -16°C (3°F), with an average around 1°C (35°F) and a maximum of 15°C (60°F). This cold month also experiences higher humidity levels at 88% and receives about 51 mm (2.0 in) of precipitation over 11 days. In contrast, July boasts much warmer temperatures, ranging from a minimum of 10°C (51°F) to an average of 22°C (72°F), peaking at a maximum of 35°C (95°F). With only 60 mm (2.4 in) of precipitation spread across 8 days and lower humidity at 63%, July is characterized by a much more comfortable and summery climate. For more specific details, you can explore Cozia weather in July.

December presents a stark contrast to August in terms of weather conditions. While December experiences minimum temperatures plummeting to -16°C (3°F) and an average temperature of 1°C (35°F), August enjoys a much warmer climate with minimums of 8°C (46°F) and average highs reaching 23°C (73°F). Precipitation is more frequent in December, with 51 mm (2.0 in) spread over 11 days, compared to August's drier profile of just 37 mm (1.5 in) falling over 4 days. Furthermore, the humidity in December remains high at 88%, while August boasts a more comfortable 50%, making the summer month feel much more pleasant overall. For a detailed look at August weather conditions, check out Cozia weather in August.

In December, temperatures can plunge as low as -16°C (3°F), with an average temperature of around 1°C (35°F), while September enjoys much milder conditions with minimum temperatures of 0°C (33°F) and an average of 18°C (64°F). The maximum in December can reach 15°C (60°F), but it's significantly warmer in September, where highs can soar up to 34°C (94°F). Additionally, December sees nearly double the precipitation at 51 mm (2.0 in) over 11 days compared to September's 27 mm (1.1 in) over just 6 days. The humidity is also higher in December at 88%, in contrast to September's 58%. For more details, you can check Cozia weather in September.

In comparing the weather of December and October, December tends to be much colder, with temperatures ranging from a minimum of -16°C (3°F) to a maximum of 15°C (60°F), and an average of around 1°C (35°F). The month also experiences higher humidity at 88% and more frequent precipitation, averaging 51 mm (2.0 in) over 11 days. In contrast, October boasts milder temperatures with a range from 0°C (31°F) to a warm 26°C (80°F) and an average of 12°C (54°F). It has significantly less precipitation at 34 mm (1.3 in) spread over only 4 days and a lower humidity level of 78%. For more details on the October weather, you can check out Cozia weather in October.

In comparing the weather of December to that of November, December tends to be colder, with average temperatures ranging from a minimum of -16°C (3°F) to a maximum of 15°C (60°F), while November experiences milder conditions with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 24°C (76°F). December also sees more precipitation, accumulating 51 mm (2.0 in) over 11 days compared to November's 26 mm (1.0 in) over just 5 days. Humidity levels are relatively high in both months, with December at 88% and November slightly lower at 87%. For a more detailed look at November's conditions, you can check out Cozia weather in November.

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Conclusion: What to Expect From December Weather in Cozia

As December unfolds in Cozia, the winter chill takes center stage, contrasting sharply with the milder months preceding it. With temperatures frequently dipping to sub-zero levels, the average feels stark compared to the preceding fall. This month sees an increase in humidity and precipitation, leading to a brisk and often damp atmosphere that typifies the winter season. While December may bring fewer sunny days, it sets the stage for a picturesque winter landscape, making it a unique time to experience the area. For more detailed insights into the overall climate, visit Cozia Climate.