December Weather in Olomouc, Czech Republic

Last updated: April 1, 2025

December in Olomouc, Czech Republic, presents a seasonal chill, with maximum temperatures reaching up to 12°C (53°F), while averages hover around a brisk 1°C (35°F). As the month progresses, minimum temperatures can dip to a frosty -8°C (17°F), painting a wintery landscape. With 52 mm (2.0 in) of precipitation spread over 12 days, the atmosphere is notably humid, with levels peaking at 91%. This combination of cold temperatures and frequent moisture creates the quintessential December experience, making it a picturesque yet chilly month in Olomouc.

December Temperature in Olomouc

In December, Olomouc, Czech Republic, ushers in the winter season with temperatures that evoke a chilly charm. The month typically starts with minimums around -8°C (17°F) and averages hovering just above freezing at 1°C (35°F), while daytime highs can reach a comfortable 12°C (53°F). This trend of sub-zero nights and moderately cool days marks a shift from the previous months, creating an inviting atmosphere for festive celebrations and the enchanting beauty of the city blanketed in frost. With temperatures gradually declining as winter sets in, December serves as a gentle prelude to the harsher cold of January, making it a cozy yet lively time for both locals and visitors alike.

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

The chart illustrates December temperature patterns in Olomouc, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec313440495767686959514234
Data source: Temperature data for Olomouc 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 Olomouc

December in Olomouc, Czech Republic, marks a notable shift in precipitation patterns as the year comes to a close. With 52 mm (2.0 in) of rainfall over about 12 days, the month exhibits a balanced blend of wetness, maintaining a steady cadence similar to November’s 45 mm (1.8 in) over 9 days. This slight increase in precipitation hints at a transition into wetter winter months, contrasting significantly with the drier early months of the year, such as January’s 33 mm (1.3 in). The overall trend shows that as temperatures drop, the city experiences a consistent flow of moisture, contributing to its characteristic chilly and often damp December ambiance.

December Precipitation Trends in Olomouc

The chart displays monthly precipitation patterns in Olomouc, 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.
JanFebMarAprMayJunJulAugSepOctNovDec333939389185888193644552
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Olomouc

In Olomouc, Czech Republic, humidity levels exhibit a striking seasonal pattern throughout the year. Starting with a high of 90% in January, the levels gradually decline, reaching their lowest in May at 73%. However, as summer transitions into fall, there's a noticeable increase, with October and November both hovering around 90%. The trend peaks in December, where humidity climbs to 91%, marking it as the most humid month of the year. This year-end surge in humidity sets the stage for a cozy, albeit damp, winter atmosphere in Olomouc, nudging residents to embrace the season's chilly embrace with warmth and comfort.

December Average Humidity in Olomouc

This chart illustrates the average monthly humidity levels in Olomouc, 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.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%85%78%74%77%76%76%75%85%90%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Olomouc

As we delve into the December UV Index in Olomouc, it's notable that the index remains consistently low at 2, similar to the previous month of November. This indicates a safe environment for outdoor activities, with a recommended burn time of 45 minutes before sunscreen becomes essential. The trend throughout the winter months shows decreased UV exposure, making December a perfect time for leisurely strolls without the stress of sunburn. However, as the year concludes, it’s wise to stay aware of changing UV levels that can rise unexpectedly in the spring months. For more detailed insights, consider exploring the Olomouc UV Index.

Maximum UV Index Levels in Olomouc for December

The chart shows the monthly maximum UV Index (UVI) for Olomouc 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.
JanFebMarAprMayJunJulAugSepOctNovDec234678876422
Data source: Olomouc 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 Olomouc

Amidst the winter chill, December in Olomouc, Czech Republic, offers a bright respite with 141 hours of sunshine, a charming end to the year when daylight is dwindling. As the months unfold, sunshine hours steadily increase from a modest 129 hours in January, reaching a peak in the sun-soaked July with 436 hours. While December's sunshine is less than its immediate summer counterparts, it represents a small, yet cheerful parting gift before the longer days of spring emerge. Following November’s significant drop to 168 hours, December’s sunlight is a reminder of nature's cycles, hinting that brighter days are just around the corner.

Monthly Sunshine Duration in Olomouc: December Highlighted

The December sunshine duration represents the total number of hours Olomouc 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.
JanFebMarAprMayJunJulAugSepOctNovDec129h199h293h332h379h412h436h387h308h264h168h141h
Data source: Olomouc December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Olomouc During December

As December rolls into Olomouc, the likelihood of sunny weather takes a dip, with only 17% chance of sunshine. This drop marks a notable decrease compared to the previous month, November, which offers a slightly more optimistic 23% chance. While the colder winter months generally see less sun, the trend highlights a steady decline in sunlight as the year transitions toward its end. Interestingly, this trend of diminishing sunshine begins in late fall, reaching its annual low in December after peaking in the warmer months, particularly June at an impressive 51%. For those longing for brighter days, it’s clear that December's gray skies are a hallmark of the season in Olomouc.

Percentage of Sunny Days in December in Olomouc

The chart illustrates the percentage of sunny days in Olomouc 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 Olomouc experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%29%48%36%35%51%43%35%45%48%23%17%
Data source: Olomouc December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Olomouc in December

In Olomouc, Czech Republic, the transition through the months reveals a distinct pattern in daylight duration that paints a vivid seasonal portrait. December, with its 8 hours of daylight, marks a return to the shorter days typical of winter, mirroring January's similar brief illumination. As the year progresses from February's 10 hours to March's 11, the lengthening days herald the arrival of spring, culminating in May's 15 hours and the peak of summer in June with 16 hours. The gradual decline begins in late summer, with August offering 14 hours before tapering to December's serene twilight. This rhythmic ebb and flow of light not only dictates daily routines but also enriches the cultural tapestry of Olomouc, making each season a unique experience.

Average Daylight Hours in Olomouc for December

The chart illustrates the variation in daylight duration in Olomouc throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 40m10h 7m11h 55m13h 46m15h 22m16h 11m15h 45m14h 19m12h 33m10h 42m9h 4m8h 12m
Data source: Olomouc daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Olomouc

As December sweeps into Olomouc, Czech Republic, the wind begins to settle into a gentle rhythm, with an average speed of 2.9 m/s (6 mph). Following the busier winds of autumn, which peaked at 3.4 m/s in October, December brings a slight reprieve, reminiscent of the calmness often associated with winter. Interestingly, the month’s wind speed mirrors the patterns observed in March and January, suggesting a lingering steadiness in the air as the year draws to a close. This transition, with its softened winds, invites residents and visitors alike to embrace the crisp, cool air of winter while navigating the charming streets of this historic city.

Average December Wind Speed in Olomouc

The chart displays monthly wind speed patterns in Olomouc, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.83.02.83.43.52.32.52.32.43.43.02.9 m/s
Data source: Olomouc December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Olomouc Compares to Other Months

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

In comparing the weather between December and January, January tends to be colder, with minimum temperatures dropping to -18°C (1°F) compared to December's minimum of -8°C (17°F). While both months can reach similar maximum temperatures, January averages slightly cooler at -1°C (31°F) versus December’s 1°C (35°F). Precipitation is also less frequent in January, with only 33 mm (1.3 in) over 8 days compared to December's 52 mm (2.0 in) over 12 days. Humidity levels remain quite similar, with December at 91% and January at 90%. For more details, check out Olomouc weather in January.

December and February weather in Olomouc show some interesting contrasts. In December, temperatures range from a minimum of -8°C (17°F) to a maximum of 12°C (53°F), with an average of 1°C (35°F). The month sees about 52 mm (2.0 in) of precipitation over 12 days and maintains a high humidity of 91%. In contrast, February experiences cooler minimum temperatures at -14°C (7°F), but it can reach up to 15°C (60°F) during the day, with a similar average temperature of 1°C (34°F). February is slightly drier, with 39 mm (1.5 in) of precipitation over 8 days and lower humidity at 87%. For more detailed insights into February weather, check Olomouc weather in February.

December and March exhibit contrasting weather patterns, showcasing the transition from winter to early spring. In December, temperatures range from a chilly minimum of -8°C (17°F) to a mild maximum of 12°C (53°F), with an average temperature of 1°C (35°F). This month sees about 52 mm (2.0 in) of precipitation over roughly 12 days and a high humidity level of 91%. In comparison, March experiences temperatures that are a bit milder, with a minimum of -14°C (7°F) and a maximum of 20°C (69°F), averaging around 4°C (40°F). The month also has less precipitation, totaling 39 mm (1.5 in) across about 8 days, accompanied by a slightly lower humidity of 85%. For more details about the weather in March, you can check Olomouc weather in March.

December and April present contrasting weather patterns, reflecting the transition from winter to spring. In December, temperatures range from a chilly -8°C (17°F) to a mild max of 12°C (53°F), with an average of just 1°C (35°F). This month typically sees 52 mm (2.0 in) of precipitation over 12 days, accompanied by high humidity levels at 91%. In contrast, April experiences a significant warming trend, with temperatures ranging from -6°C (21°F) to a comfortable 27°C (81°F) and an average of 9°C (49°F). Precipitation is lighter at 38 mm (1.5 in) across 8 days, and humidity decreases to 78%. For more detailed insights on April weather patterns, visit Olomouc weather in April.

In December, temperatures in Olomouc range from a chilly -8°C (17°F) to a mild 12°C (53°F), with an average of around 1°C (35°F). The month is marked by high humidity at 91% and experiences about 52 mm (2.0 in) of precipitation over 12 days. In contrast, May sees a significant temperature increase, with lows of 0°C (31°F) and highs soaring up to 31°C (88°F), averaging 14°C (57°F). While May has more precipitation at 91 mm (3.6 in) across 15 days, the humidity drops to a more comfortable 73%. For more details on the specific weather patterns, you can check Olomouc weather in May.

December and June in Olomouc showcase stark contrasts in weather conditions. December experiences much colder temperatures, with an average of 1°C (35°F), and can dip as low as -8°C (17°F), while June boasts a much milder average of 19°C (67°F) and can reach maximums of 32°C (91°F). Precipitation is fairly consistent across both months, with December receiving 52 mm (2.0 in) and June seeing slightly more at 85 mm (3.3 in), yet both months have precipitation on approximately 12 days. The humidity is notably higher in December at 91%, compared to June's 77%, which contributes to the chilly atmosphere of winter versus the balmy feel of early summer. For more detailed information, visit Olomouc weather in June.

In December, the weather tends to be significantly colder, with average temperatures hovering around 1°C (35°F) and dipping as low as -8°C (17°F). The humidity is quite high, at 91%, with 52 mm (2.0 in) of precipitation spread over 12 days. In contrast, July's temperatures are much warmer, with an average of 20°C (68°F) and reaching up to a balmy 35°C (95°F). Precipitation is slightly higher at 88 mm (3.5 in) over 13 days, but the humidity is lower at 76%. For more detailed insights, you can visit Olomouc weather in July.

December and August present stark contrasts in weather conditions. In December, temperatures can drop as low as -8°C (17°F), with an average of 1°C (35°F) and highs reaching 12°C (53°F). This chill is accompanied by high humidity at 91% and 52 mm (2.0 in) of precipitation falling over approximately 12 days. In contrast, August experiences much warmer weather, with temperatures ranging from a minimum of 7°C (44°F) to an average of 20°C (69°F) and highs soaring to 34°C (93°F). Although it is slightly wetter, with 81 mm (3.2 in) of rainfall over 13 days, the humidity is more moderate at 76%. For more details on the warm conditions of August, check Olomouc weather in August.

December and September showcase contrasting weather patterns. In December, temperatures range from a chilly minimum of -8°C (17°F) to a maximum of 12°C (53°F), with an average hovering around 1°C (35°F). This month experiences higher humidity at 91% and moderate precipitation of 52 mm (2.0 in) over about 12 days. In stark contrast, September boasts much milder temperatures, with a minimum of 2°C (35°F) and a maximum of 31°C (88°F), leading to a comfortable average of 15°C (60°F). Although September sees more precipitation at 93 mm (3.7 in) over 11 days, the humidity is relatively lower at 75%. For a more detailed look at the weather in September, you can explore Olomouc weather in September.

In comparing the weather in December and October, December is characterized by significantly colder temperatures, with an average of just 1°C (35°F) compared to October's much milder average of 10°C (51°F). While October enjoys maximum temperatures that can reach up to 23°C (74°F), December's highs are capped at 12°C (53°F). Additionally, humidity levels rise in December to 91%, making it feel colder, while October's humidity is slightly lower at 85%. Precipitation is fairly similar, with December receiving 52 mm (2.0 in) over 12 days and October slightly higher at 64 mm (2.5 in) across 10 days. For more detailed information on October weather in Olomouc, visit Olomouc weather in October.

In comparing the weather of December to that of November, we see a notable drop in average temperatures, with December averaging around 1°C (35°F) compared to November's 5°C (42°F). Both months share the same minimum temperature of -8°C (17°F), but November experiences warmer maximum temperatures, peaking at 17°C (63°F) versus December's 12°C (53°F). Precipitation is slightly higher in December at 52 mm (2.0 in) over 12 days, compared to November's 45 mm (1.8 in) over 9 days. Humidity remains relatively similar, with December at 91% and November at 90%. For more information, you can visit Olomouc weather in November.

Compare Olomouc's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Olomouc

As December blankets Olomouc in chilly temperatures and frequent precipitation, this month stands out markedly from the milder fall and the stark cold of winter ahead. With considerably cooler days and a higher humidity level of 91%, residents experience a notable drop in temperatures, averaging around 1°C. The month’s relatively consistent rainfall, spread over 12 days, adds to the overall crispness, creating a uniquely festive atmosphere that invites cozy gatherings. As the year draws to a close, the weather offers a distinct reminder of both the beauty and challenges of winter in this picturesque Czech city. For a deeper dive into what makes Olomouc's climate special, explore Olomouc Climate.