December Weather in Ceahlau, Romania

Last updated: August 27, 2025

In December, Ceahlau, Romania experiences a stark range of temperatures, from a maximum of 12°C (53°F) to a chilly minimum of -23°C (-8°F), with an average temperature hovering around -1°C (30°F). This month is characterized by notable moisture, as 55 mm (2.2 in) of precipitation falls over 11 days, contributing to a humidity level of around 90%. Visitors can expect a wintry landscape, where the combination of low temperatures and high humidity creates a picturesque setting but also calls for proper winter attire.

December Temperature in Ceahlau

In December, temperatures in Ceahlau, Romania, embrace the deep chill of winter, showcasing a stark shift compared to the preceding months. With a minimum temperature dipping to a frosty -23°C (-8°F), the weather underscores the harshness of the season. The average temperature hovers around -1°C (30°F), while daytime highs can reach up to 12°C (53°F), providing a brief respite from the cold. This month marks a distinct transition as the region settles into winter, contrasting sharply with the milder conditions seen in the autumn months where temperatures were notably higher. Looking ahead to January, one can expect even more frigid nights, making December a pivotal month in Ceahlau’s annual climate cycle.

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

The chart illustrates December temperature patterns in Ceahlau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ceahlau, 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).
JanFebMarAprMayJunJulAugSepOctNovDec252934435361636455463730
Data source: Temperature data for Ceahlau 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 Ceahlau

In December, Ceahlau experiences a notable uptick in precipitation, with an average of 55 mm (2.2 in) spread over 11 days. This increase marks a shift from the drier conditions of preceding months like November, which recorded only 33 mm with just 6 rainy days. The pattern of rising precipitation through the late fall hints at the arrival of winter, as December's figures are closely aligned with the wetter middle months, reflective of the year's overall trend toward increased moisture. Overall, the last month of the year encapsulates the transition into a colder season, setting the stage for the snow-laden landscapes of the months to come.

December Precipitation Trends in Ceahlau

The chart displays monthly precipitation patterns in Ceahlau, 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 Ceahlau, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec274554531141591088350363355
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ceahlau

As December arrives in Ceahlau, Romania, the humidity takes a slight upswing, reaching 90% after a progressive decline from the summer months. This transition reflects a typical seasonal trend, starting from high levels of humidity in the colder months, peaking at 92% in January, and gradually dropping to a minimum of 56% in August. Following this dip, the humidity levels rise again, particularly notable in the final quarter, where November registers 89% and December stabilizes at a high 90%. This fluctuation not only highlights the region's cold dampness during winter but also emphasizes the gradual shift from the drier summer months, showcasing the distinctive climatic rhythm of Ceahlau throughout the year.

December Average Humidity in Ceahlau

This chart illustrates the average monthly humidity levels in Ceahlau, 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 Ceahlau is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%88%86%79%73%73%69%56%62%81%89%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ceahlau

In Ceahlau, Romania, the UV Index varies significantly throughout the year, revealing interesting trends in sun exposure. As winter settles in December, the UV Index drops to a low level of 2, allowing for a safer sun experience with a burn time of 45 minutes. This follows a gradual increase, peaking during the summer months of June and July, where the index reaches a striking 9, categorized as very high, necessitating careful skin protection with a mere 15 minutes of exposure. The transition from spring to summer sees a significant rise, moving from a moderate 5 in March to an intense 8 in May. As autumn arrives, the Index gently declines, stabilizing at 4 in October and then dipping once more as November approaches. These fluctuations underscore the importance of being aware of UV levels year-round. For more details and insights, check the Ceahlau UV Index.

Maximum UV Index Levels in Ceahlau for December

The chart shows the monthly maximum UV Index (UVI) for Ceahlau 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 Ceahlau typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987432
Data source: Ceahlau 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 Ceahlau

In December, Ceahlau, Romania, basks in 181 hours of sunlight, a cozy yet significant dip as winter settles in. While this marks the end of a year filled with increasing daylight—from a mere 168 hours in January to a peak of 422 hours in July—it's a reminder of the cyclical beauty of nature. As the days shorten, many may find solace in the tranquil charm of the region, where the crisp mountain air and serene landscapes contrast beautifully with the fading sunlight. December’s daylight hours set the stage for a reflective time, bridging the vibrant energy of summer with the quietude of winter. It's a perfect month to embrace the serenity that follows the bustling warmth of the summer months.

Monthly Sunshine Duration in Ceahlau: December Highlighted

The December sunshine duration represents the total number of hours Ceahlau 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.
JanFebMarAprMayJunJulAugSepOctNovDec168h220h295h346h394h399h422h407h337h288h230h181h
Data source: Ceahlau December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ceahlau During December

In Ceahlau, Romania, the likelihood of sunny weather in December takes a noticeable dip, with only a 20% chance of sunshine. This marks a stark contrast to the preceding months, particularly October, which boasts a robust 46% likelihood of sun. As the year progresses into the winter months, the trend shows a general decline in sunshine, peaking in the vibrant autumn and hitting a low in December. This seasonal shift creates a picturesque yet subdued atmosphere in Ceahlau, where winter's embrace prevails, leaving little room for sunny days. If you're looking to enjoy rays in this enchanting region, it might be wise to plan your visit earlier in the year!

Percentage of Sunny Days in December in Ceahlau

The chart illustrates the percentage of sunny days in Ceahlau 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 Ceahlau experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%36%35%38%36%30%42%39%31%46%40%20%
Data source: Ceahlau December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ceahlau in December

In Ceahlau, Romania, the daylight duration follows a distinct seasonal rhythm that highlights the changing patterns throughout the year. Starting with December, the daylight spans only 8 hours, mirroring the bleakness of winter. As the months progress into January and November, daylight remains minimal, hinting at the cold, dark days that define the season. However, a noticeable transformation occurs in February, when daylight starts to extend to 10 hours, signaling the gradual shift toward spring. The real awakening happens in March and April, as daylight blossoms to 11 and 13 hours respectively, capturing the essence of renewal. By May, daylight peaks at 15 hours, and this bounty continues through June and July, embracing the vibrant summer months. As autumn approaches, daylight gently recedes, with August offering 14 hours and the subsequent months, September to November, gradually tapering back to 10 and then 9 hours in November. Thus, December marks the return to short days, completing the circle of daylight's journey in Ceahlau, where each season beautifully influences the rhythms of life.

Average Daylight Hours in Ceahlau for December

The chart illustrates the variation in daylight duration in Ceahlau throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 57m10h 16m11h 56m13h 37m15h 5m15h 49m15h 26m14h 8m12h 30m10h 49m9h 20m8h 33m
Data source: Ceahlau daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Ceahlau

As December ushers in the winter chill in Ceahlau, Romania, the wind begins to whisper tales of the year's changing seasons. The average wind speed rises slightly to 2.3 m/s (5 mph), mirroring the briskness felt in earlier months but still gentle compared to the spring rush. It's fascinating to note how the wind's demeanor fluctuated throughout the year; from a peak in March at 2.6 m/s (6 mph) to more languid summer months, where July and August barely rustled at 1.9 m/s (4 mph). This December breeze, cradled between autumnal stillness and winter's onset, serves as a reminder of nature’s rhythmic dance, inviting locals and visitors alike to embrace the serene beauty of the mountainous landscape.

Average December Wind Speed in Ceahlau

The chart displays monthly wind speed patterns in Ceahlau, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.42.52.62.02.32.31.91.61.91.91.92.3 m/s
Data source: Ceahlau December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Ceahlau Compares to Other Months

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

In December, temperatures range from a minimum of -23°C (-8°F) to a maximum of 12°C (53°F), with an average of -1°C (30°F). The month experiences 55 mm (2.2 in) of precipitation over 11 days, accompanied by a humidity level of 90%. In contrast, January sees a slightly colder average temperature of -4°C (25°F), with minimums and maximums remaining similar, ranging from -23°C (-9°F) to 10°C (50°F). Precipitation drops significantly to 27 mm (1.1 in) over just 6 days, while humidity increases slightly to 92%. For a detailed look at January weather in Ceahlau, you can visit Ceahlau weather in January.

December and February display notably similar average temperatures, both hovering around -1°C (30°F). However, December experiences colder minimum temperatures, dipping to -23°C (-8°F), compared to February's minimum of -19°C (-2°F). While December sees slightly higher precipitation with 55 mm (2.2 in) over 11 days, February has a lower total of 45 mm (1.8 in) across 10 days. Additionally, humidity levels are quite close, with December at 90% and February slightly lower at 88%. For a more detailed look at February weather specifics, you can check the information at Ceahlau weather in February.

In December, temperatures range from a chilling -23°C (-8°F) to a mild 12°C (53°F), with an average of -1°C (30°F). The month sees around 55 mm (2.2 in) of precipitation over approximately 11 days, accompanied by high humidity levels at 90%. In contrast, March experiences a slight uptick in temperatures, with a minimum of -24°C (-10°F) and a maximum of 20°C (68°F), averaging around 1°C (34°F). Precipitation remains similar at 54 mm (2.1 in) but occurs over a slightly longer duration of about 13 days, while humidity drops slightly to 86%. For more information on weather patterns in March, you can check Ceahlau weather in March.

December and April present stark contrasts in weather conditions. In December, temperatures can plummet to as low as -23°C (-8°F), with an average around -1°C (30°F) and occasional highs reaching 12°C (53°F). The month sees significant humidity at 90%, accompanied by approximately 55 mm (2.2 in) of precipitation over 11 days. In contrast, April experiences a milder climate, with minimum temperatures around -8°C (18°F) and average highs of 24°C (75°F), making it feel much warmer. While April has slightly less precipitation at 53 mm (2.1 in) over 10 days, the humidity level is lower at 79%, contributing to a more refreshing atmosphere. For a detailed overview of April weather conditions, you can visit Ceahlau weather in April.

December and May exhibit stark differences in weather conditions. In December, temperatures can plunge as low as -23°C (-8°F), with an average of around -1°C (30°F) and a maximum reaching 12°C (53°F). The month experiences significant humidity at 90%, resulting in a cold and damp atmosphere, with around 55 mm (2.2 in) of precipitation over 11 days.

Conversely, May is much milder, with temperatures ranging from a minimum of -3°C (27°F) to a pleasant maximum of 25°C (78°F), averaging around 12°C (53°F). The month sees increased precipitation at 114 mm (4.5 in) over 17 days, but the humidity is relatively lower at 73%, contributing to a more comfortable environment. For those interested in the specifics of weather during this vibrant spring month, more details can be found here: Ceahlau weather in May.

In December, temperatures can drop as low as -23°C (-8°F), with an average of -1°C (30°F) and a maximum of 12°C (53°F), making it a significantly colder month. The humidity remains high at 90%, contributing to a crisp winter atmosphere, while the month sees about 55 mm (2.2 in) of precipitation over approximately 11 days. In contrast, June brings a much milder climate, with temperatures ranging from a minimum of 3°C (38°F) to a comfortable average of 16°C (61°F), peaking at 28°C (83°F). June experiences more precipitation, totaling 159 mm (6.3 in) over around 19 days, but the humidity is lower at 73%. For more detailed insights into the weather patterns, you can visit Ceahlau weather in June.

December and July showcase stark contrasts in weather conditions. In December, temperatures plummet, with a minimum of -23°C (-8°F) and an average of -1°C (30°F), reaching a maximum of 12°C (53°F). The month is characterized by high humidity at 90%, along with 55 mm (2.2 in) of precipitation over 11 damp days. Conversely, July brings warmth and vitality, featuring a minimum of 5°C (42°F), an average of 17°C (63°F), and a maximum of 29°C (85°F). Although it is less humid at 68%, July experiences more precipitation overall, totaling 108 mm (4.2 in) over 15 days. The summer sun transforms the landscape, in contrast to the cold grip of winter. For more details on July weather, visit Ceahlau weather in July.

December and August present stark contrasts in weather patterns. In December, temperatures can drop as low as -23°C (-8°F), with an average temperature hovering around -1°C (30°F) and a maximum of only 12°C (53°F). The month also experiences heavy humidity at around 90% and receives about 55 mm (2.2 in) of precipitation over 11 days. In contrast, August boasts a much milder climate, with minimum temperatures of 5°C (41°F) and an average of 18°C (64°F), peaking at a warm 31°C (88°F). Although August sees slightly more precipitation at 83 mm (3.3 in) over 10 days, the humidity is significantly lower at 56%. For a closer look at August weather specifics, you can visit Ceahlau weather in August.

The weather in December starkly contrasts with that of September, showcasing the transition from late autumn to winter. In December, temperatures can plummet to a chilling minimum of -23°C (-8°F), with an average of -1°C (30°F) and a maximum reaching 12°C (53°F). The month also sees high humidity levels at 90% and about 55 mm (2.2 in) of precipitation over 11 days, creating a cold and damp atmosphere.

In comparison, September enjoys much milder temperatures, with minimums dropping to -3°C (27°F) but averaging a pleasant 13°C (56°F) and peaking at a warm 30°C (86°F). This month experiences slightly less precipitation at 50 mm (2.0 in) over 9 days and a more comfortable humidity level of 62%. For a closer look at September's typically favorable climate, visit Ceahlau weather in September.

December weather is significantly colder than October, with temperatures ranging from a minimum of -23°C (-8°F) to a maximum of 12°C (53°F), while October sees milder conditions with a minimum of -4°C (25°F) and a maximum of 24°C (75°F). Additionally, December experiences higher humidity levels at 90% compared to October's 80%, contributing to a chillier atmosphere. Precipitation is also more frequent in December, with 55 mm (2.2 in) falling over 11 days, whereas October has 36 mm (1.4 in) spread over just 6 days. For more detailed insights on October weather in the region, check Ceahlau weather in October.

In comparing the weather of December and November, we observe notable differences in temperature and precipitation. December experiences significantly colder temperatures, with a minimum of -23°C (-8°F) and an average of -1°C (30°F), while November has a milder minimum of -13°C (9°F) and an average of 3°C (37°F). Furthermore, December also sees more precipitation, totaling 55 mm (2.2 in) across 11 days, compared to November's 33 mm (1.3 in) over just 6 days. Humidity levels remain similar, hovering around 90% in December and 89% in November. For more detailed information, you can visit Ceahlau weather in November.

Compare Ceahlau's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Ceahlau

December in Ceahlau marks a distinct shift in weather, with the cold becoming more pronounced compared to the milder autumn months. As temperatures drop significantly, reaching chilling lows and occasional highs that barely break 12°C, residents and visitors alike brace for the winter's embrace. The month is characterized by increased humidity—hovering around 90%—and frequent precipitation, which typically manifests as snow, transforming the landscape into a winter wonderland. With about 11 days of precipitation, December offers a stark contrast to the drier conditions of preceding months. For a deeper understanding of the nuances in weather patterns throughout the year, explore more at Ceahlau Climate.