December Weather in Tallinn, Estonia

Last updated: August 21, 2025

December in Tallinn, Estonia offers a blend of chilly weather and holiday charm. With temperatures ranging from a maximum of 7°C (46°F) to a minimum of -17°C (1°F), the average hovers around 0°C (32°F), making it essential for visitors to bundle up. Precipitation is frequent, with about 60 mm (2.4 in) falling over 16 days, contributing to the city's winter wonderland ambiance. Coupled with a high humidity level of 90%, the crisp, cold air is invigorating, inviting residents and tourists alike to explore the magical atmosphere of Tallinn during this festive season.

December Temperature in Tallinn

In December, Tallinn transforms into a winter wonderland, with temperatures dipping to a minimum of -17°C (1°F) and averaging around 0°C (32°F). This chilly month marks the onset of true winter, where the maximum temperatures only reach 7°C (46°F). Compared to the previous months, it's a significant drop—notably from November's mild range, where the average hovers at 4°C (40°F). As the year draws to a close, the days become colder, setting the stage for a magical, frost-laden landscape that invites both locals and visitors to embrace the warmth of cozy cafes and festive cheer.

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

The chart illustrates December temperature patterns in Tallinn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tallinn, 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).
JanFebMarAprMayJunJulAugSepOctNovDec302833404960646255474032
Data source: Temperature data for Tallinn 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 Tallinn

In December, Tallinn experiences a notable shift in weather as precipitation levels rise, with 60 mm (2.4 in) of rain recorded over approximately 16 days. As the year draws to a close, the city's precipitation showcases a steady trend, slightly increasing from November's 58 mm despite the colder temperatures. This month stands out as a transitional period, where the lingering autumn moisture blends with the chill of winter, creating a unique atmospheric tapestry. The consistent rainfall, coupled with a higher number of precipitation days than in many earlier months, highlights December's role as a pivotal point in Tallinn's annual climate cycle.

December Precipitation Trends in Tallinn

The chart displays monthly precipitation patterns in Tallinn, 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 Tallinn, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec44484742545568102781005860
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tallinn

In December, Tallinn experiences a humidity level of 90%, aligning closely with the trends seen in the preceding months of November and October, both at 91% and 90%, respectively. This consistency highlights a winter pattern where humidity levels remain elevated, contributing to the city's chilly and damp atmosphere. As the year progresses from the higher humidity of the colder months—peaking at 92% in January—the gradual decline begins in May, with drier air setting in during the summer months. By December, the humidity stabilizes, making it a notable feature of Tallinn’s winter climate, where the air feels notably crisp yet laden with moisture.

December Average Humidity in Tallinn

This chart illustrates the average monthly humidity levels in Tallinn, 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 Tallinn is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%91%90%87%76%80%80%83%87%90%91%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tallinn

As December rolls into Tallinn, Estonia, the UV Index remains firmly at 1, maintaining a low exposure category typical for this time of year. This means that individuals can enjoy about 45 minutes of sun exposure without the risk of skin damage, similar to the preceding months of November and October. The trend throughout the winter months shows consistent low UV levels, providing a break from the more intense indexes of summer. As the year winds down, it's a good reminder for residents and visitors alike to embrace the cozy indoor activities that Tallinn has to offer while keeping sun safety in mind. For more detailed insights on UV levels across the year, check the Tallinn UV Index.

Maximum UV Index Levels in Tallinn for December

The chart shows the monthly maximum UV Index (UVI) for Tallinn 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 Tallinn typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Tallinn 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 Tallinn

In December, Tallinn experiences a modest 64 hours of sunshine, a stark contrast to the longer, sun-drenched days of summer that peak with nearly 488 hours in June. As the year winds down, daylight dwindles significantly, with December's sun just barely illuminating the city compared to the vibrant 452 hours in May and 367 hours in April. This gradual decline highlights the transition from the bright, lively energy of late spring and summer into the chill of winter. However, despite the dreary sunlight hours, the festive atmosphere during the holiday season brings a unique charm to Tallinn, making it a magical time to experience the city, even under a cloudy sky.

Monthly Sunshine Duration in Tallinn: December Highlighted

The December sunshine duration represents the total number of hours Tallinn 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.
JanFebMarAprMayJunJulAugSepOctNovDec61h157h268h367h452h488h481h408h303h206h121h64h
Data source: Tallinn December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tallinn During December

In Tallinn, Estonia, December marks a notable shift towards less sunny days, with only a 13% chance of sunshine gracing the city. As the year progresses, there's a clear trend of increasing sunlight from the depths of winter, starting with a mere 5% in January and gradually rising to a peak of 58% in July. March and April offer a refreshing contrast, showcasing a more optimistic 35% and 43% likelihood of clear skies, respectively. However, as autumn settles in, the chances diminish significantly—November sees a slight dip to 21%, mirroring the trend as December arrives and plunges back down to its wintry low. This progression highlights the seasonal transition in Tallinn, where opportunities for sun become rare thus lending December its characteristic charm.

Percentage of Sunny Days in December in Tallinn

The chart illustrates the percentage of sunny days in Tallinn 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 Tallinn experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec5%15%35%43%33%55%58%33%28%22%21%13%
Data source: Tallinn December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tallinn in December

As December settles in Tallinn, Estonia, residents experience the year's shortest days, with daylight averaging only 6 hours. This stark contrast to the long, sunlit days of June, which boast a remarkable 18 hours of daylight, highlights a notable trend in seasonal variation. As the year progresses from the vibrant daylight of spring and summer, which peaks around 17 hours in May and July, daylight hours gradually wane. By autumn, days shrink to just 7 hours in November, setting the stage for the wintry gloom of December. This cyclical dance of daylight not only defines the rhythm of life in Tallinn but also underscores the enchanting yet challenging nature of its northern climate.

Average Daylight Hours in Tallinn for December

The chart illustrates the variation in daylight duration in Tallinn throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 55m9h 12m11h 51m14h 34m17h 4m18h 31m17h 44m15h 25m12h 46m10h 6m7h 35m6h 8m
Data source: Tallinn daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Tallinn

As December settles over Tallinn, the brisk winter breeze brings with it an average wind speed of 5.0 m/s (11 mph), reflecting a notable trend of increasing winds as the year draws to a close. This uptick follows a relatively consistent pattern, with wind speeds gradually rising from the calmer, milder months of summer, which see averages as low as 3.3 m/s (7 mph) in June and July. The transition to chillier autumn months, particularly October at 6.1 m/s (14 mph) and November at 5.6 m/s (12 mph), paves the way for December’s resilient winds. This rhythmic shift not only underscores the dynamic climate of Estonia’s capital but also serves as a reminder of the invigorating energy that December winds bring to the historic streets of Tallinn.

Average December Wind Speed in Tallinn

The chart displays monthly wind speed patterns in Tallinn, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.54.45.54.94.23.33.95.05.06.15.65.0 m/s
Data source: Tallinn December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Tallinn Compares to Other Months

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

In December, the weather features a minimum temperature of -17°C (1°F) and an average of 0°C (32°F), with a maximum reaching 7°C (46°F). This month experiences significant precipitation, amounting to 60 mm (2.4 in) over 16 days, coupled with high humidity at 90%. In contrast, January records a slightly milder minimum temperature of -16°C (3°F) and a lower average of -1°C (30°F), while still peaking at 8°C (46°F). Precipitation decreases to 44 mm (1.7 in) over 11 days, although humidity rises to 92%. For more detailed insights into January weather, you can visit Tallinn weather in January.

In December, temperatures in the region typically range from a chilly minimum of -17°C (1°F) to a maximum of 7°C (46°F), with an average temperature of around 0°C (32°F). The month sees about 60 mm (2.4 in) of precipitation spread over 16 days, contributing to a high humidity level of 90%. In contrast, February brings even colder temperatures, with a minimum of -21°C (-6°F) and an average of -2°C (28°F), while still reaching a maximum of 7°C (44°F). Precipitation decreases to 48 mm (1.9 in) across 11 days, with humidity slightly higher at 91%. Overall, February is marked by colder weather and less precipitation compared to December. For more details, check Tallinn weather in February.

December and March exhibit similar cold climates, with average temperatures hovering around freezing. In December, temperatures can drop as low as -17°C (1°F), while March sees a slightly lower minimum of -18°C (0°F). However, March tends to be a bit milder overall, reaching a maximum of 10°C (51°F) compared to December’s max of 7°C (46°F). Precipitation is more prevalent in December, with 60 mm (2.4 in) over 16 days, while March experiences less at 47 mm (1.9 in) across 13 days. Both months share a high humidity level of 90%, contributing to their chilly atmospheres. For a closer look at the weather in March, visit Tallinn weather in March.

December and April present distinct contrasts in weather patterns. In December, temperatures can plummet to as low as -17°C (1°F), with an average of 0°C (32°F) and highs reaching only 7°C (46°F). This month also experiences considerable precipitation, with 60 mm (2.4 in) likely to fall over 16 days, coupled with high humidity at around 90%. In contrast, April brings a more moderate climate, with minimum temperatures of -8°C (18°F) and an average of 4°C (40°F). Daytime highs can soar to 18°C (65°F), while precipitation decreases to 41 mm (1.6 in) over roughly 10 days, and humidity remains slightly lower at 87%. For more details on the weather in April, you can visit Tallinn weather in April.

December and May present stark contrasts in weather. In December, temperatures can plunge to a minimum of -17°C (1°F) and average around 0°C (32°F), with a maximum of 7°C (46°F). The month is characterized by high humidity at 90% and frequent precipitation, occurring on about 16 days with a total of 60 mm (2.4 in). Conversely, May experiences much milder temperatures, with a minimum of -2°C (29°F), an average of 10°C (50°F), and a pleasant maximum of 24°C (75°F). Rainfall is less frequent in May, with precipitation recorded on only 9 days and a total of 54 mm (2.1 in), accompanied by lower humidity at 76%. For a more detailed look at May weather in Tallinn, visit Tallinn weather in May.

December and June present starkly contrasting weather conditions. In December, temperatures can plummet to a minimum of -17°C (1°F), with an average of around 0°C (32°F) and a maximum of 7°C (46°F). The month experiences significant precipitation across 16 days, contributing to a high humidity level of 90%. In contrast, June brings much milder temperatures, ranging from a minimum of 5°C (41°F) to an average of 16°C (60°F) and peaking at 30°C (87°F). With precipitation occurring on only 9 days and humidity slightly lower at 80%, June offers a more pleasant and warmer climate for outdoor activities. For more details, check out Tallinn weather in June.

December and July present a striking contrast in weather. While December is characterized by frigid temperatures, with a minimum of -17°C (1°F) and an average of 0°C (32°F), July boasts a much milder climate, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 30°C (86°F). Additionally, December sees significant humidity levels at 90% and frequent precipitation over 16 days, though the overall amount is lower than that of July, which records 68 mm (2.7 in) of rainfall over just 11 days. For more insights into the warm, pleasant atmosphere of summer, you can check Tallinn weather in July.

In December, the weather is characterized by frigid temperatures, with lows reaching -17°C (1°F) and an average of around 0°C (32°F). This month experiences considerable humidity at 90% and sees about 60 mm (2.4 in) of precipitation over 16 days. In stark contrast, August offers a much milder climate, with minimum temperatures around 8°C (47°F) and an average of 17°C (63°F), peaking at a warm 29°C (84°F). While August also sees some rainfall, totaling 102 mm (4.0 in) over 15 days, the humidity remains lower at 83%. For more details, check out Tallinn weather in August.

When comparing the weather in December and September, it's clear that these two months offer distinct climates. December experiences significantly colder temperatures, with averages around 0°C (32°F) and lows plummeting to -17°C (1°F). In contrast, September boasts a milder average of 13°C (55°F), with maximum temperatures reaching up to 24°C (75°F). Precipitation is slightly higher in September at 78 mm (3.1 in), compared to December's 60 mm (2.4 in), although both months see a similar number of rainy days, with 15 days in September and 16 in December. Humidity levels are comparable as well, with December at 90% and September at 87%. For more detailed insights into September weather, you can check Tallinn weather in September.

In December, temperatures drop significantly compared to October, with minimums reaching -17°C (1°F) and an average of 0°C (32°F), while October enjoys milder weather with a minimum of -2°C (29°F) and an average of 8°C (47°F). Precipitation also varies between the months; December sees 60 mm (2.4 in) over 16 days, while October has a higher total of 100 mm (3.9 in) across 17 days. Despite both months experiencing high humidity levels of 90%, the chill of December starkly contrasts with the more temperate autumn conditions of October. For more details on October weather, you can visit Tallinn weather in October.

In December, temperatures drop significantly compared to November, with a minimum of -17°C (1°F) and an average of 0°C (32°F), contrasting sharply with November's milder minimum of -5°C (24°F) and average of 4°C (40°F). Additionally, while both months experience similar levels of precipitation, December sees slightly more rain at 60 mm (2.4 in) over 16 days, compared to November's 58 mm (2.3 in) over 13 days. Humidity remains high in both months, with December at 90% and November at 91%. For a more detailed look into November's weather, you can check Tallinn weather in November.

Compare Tallinn's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Tallinn

December in Tallinn offers a striking contrast to the milder months that precede it. With temperatures plunging and a blend of chilly winds and high humidity, this month marks the transition into true winter. The frequent precipitation, totaling 60 mm over 16 days, adds a layer of enchantment with its soft blanket of snow, transforming the city into a picturesque winter wonderland. As the days grow shorter and the atmosphere thickens with crisp air, December demands warmer clothing and a sense of adventure. For a deeper understanding of the seasonal changes, explore more at Tallinn Climate.