December Weather in Flachau, Austria

Last updated: February 26, 2025

December in Flachau, Austria is characterized by a stunning winter landscape, where the average temperature hovers around –5°C (23°F), with maximums reaching 5°C (42°F) and plunging to a chilly –20°C (–4°F) at night. The month witnesses significant precipitation, accumulating 142 mm (5.6 in) over approximately 18 days, contributing to a high humidity level of 89%. This blend of cold temperatures and frequent snow showers creates a picturesque setting, perfect for winter sports enthusiasts and those looking to enjoy the magic of the Alpine season.

December Temperature in Flachau

In Flachau, Austria, December heralds the arrival of biting cold, with temperatures dipping to a minimum of -20°C (-4°F) and an average of -5°C (23°F). As the year draws to a close, the landscape transforms into a winter wonderland, with daytime highs barely reaching 5°C (42°F). These chilly conditions not only signal the peak of the ski season but also mark a notable trend of gradually increasing temperatures from the deep freeze of January and February, which often see minima of -23°C (-9°F) and -26°C (-15°F), respectively. December's crisp air combined with the festive atmosphere creates a vibrant backdrop for winter activities, enticing visitors to embrace the beauty of the snow-covered Alps before the transition toward milder months begins.

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

The chart illustrates December temperature patterns in Flachau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec202530374455565648413223
Data source: Temperature data for Flachau generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Flachau

In December, Flachau, Austria, experiences a notable shift in precipitation, with an average of 142 mm (5.6 in) falling over 18 days. This marks a significant increase from the preceding months, indicating a trend toward wetter winters. December's precipitation surpasses that of both October and November, which recorded 119 mm and 112 mm respectively, reflecting the onset of the snow season that is characteristic of the Alpine region. With this uptick in rainfall and snow, December not only sets the stage for picturesque winter landscapes but also signals the area's transition into its snowy peak, as locals and visitors alike embrace the enchanting atmosphere of the holiday season.

December Precipitation Trends in Flachau

The chart displays monthly precipitation patterns in Flachau, 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.
JanFebMarAprMayJunJulAugSepOctNovDec95879787171134158199140119112142
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Flachau

In December, Flachau, Austria experiences a humidity level of 89%, slightly lower than the preceding months of October and November, which saw humidity spikes at 88% and 90% respectively. This gradual decrease comes after a consistent pattern of high humidity during the winter months, where January remains the most humid month at 91%. As the year transitions into winter, humidity levels display a notable trend: starting from the summer's low of 68% in August, the humidity steadily climbs through the fall, only to peak in the coldest months. This cyclical humidity rhythm highlights the region's shift from warm summer air to the chill of winter, setting the stage for Flachau’s picturesque snowy landscape.

December Average Humidity in Flachau

This chart illustrates the average monthly humidity levels in Flachau, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%87%82%79%74%75%74%69%74%88%90%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Flachau

In Flachau, Austria, the UV Index in December reflects a return to lower levels, registering a UV Index of 2, which falls into the low exposure category. This marks a notable decline from the peak levels seen in the summer months, where indices reached up to 10 during June and July. As winter settles in, the burn time extends back to 45 minutes, allowing residents and visitors to enjoy outdoor activities with less concern for sun damage. This trend highlights the seasonal fluctuations in UV exposure in Flachau, encouraging awareness and appropriate protection during sunnier days. For more detailed information on UV trends throughout the year, visit Flachau UV Index.

Maximum UV Index Levels in Flachau for December

The chart shows the monthly maximum UV Index (UVI) for Flachau 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.
JanFebMarAprMayJunJulAugSepOctNovDec24689101097532
Data source: Flachau 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 Flachau

December in Flachau, Austria, welcomes the winter season with 211 hours of sunshine, which, although lower compared to the sun-drenched summer months, still offers a pleasant brightness during the chilly days. As the year draws to a close, December's sunlight paves the way for the sparkling snow and vibrant holiday festivities, creating a magical atmosphere. This month typically experiences a descent from the peak of 406 hours in July, yet maintains a bright ambiance that encourages outdoor activities and seasonal cheer. While the dramatic dip in daylight hours from the summer months is evident, December's sunshine embodies the beauty of winter, reminding us that the glow of the sun is still present, even as the snow blankets the landscape.

Monthly Sunshine Duration in Flachau: December Highlighted

The December sunshine duration represents the total number of hours Flachau 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.
JanFebMarAprMayJunJulAugSepOctNovDec184h240h304h343h349h383h406h367h302h283h220h211h
Data source: Flachau December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Flachau During December

In Flachau, Austria, the likelihood of sunny weather tends to fluctuate throughout the year, with December experiencing a relatively low chance of sun at just 27%. This month marks a transition from the more favorable sunshine percentages found in the late spring and early summer, where peaks like 44% in February and September stand out. The winter months, particularly December, gravitate towards diminished sunlight, making it one of the less promising periods for sunshine. As the calendar approaches winter, maintain realistic expectations—while December may bring its fair share of cloud cover, it also offers the enchanting beauty of snow-capped landscapes, creating a picturesque setting that sunny days might struggle to compete with.

Percentage of Sunny Days in December in Flachau

The chart illustrates the percentage of sunny days in Flachau 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 Flachau experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%44%41%35%25%42%33%27%44%33%30%27%
Data source: Flachau December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Flachau in December

In Flachau, Austria, the daylight duration experiences a notable seasonal rhythm throughout the year. As we transition into December, daylight dwindles to a modest 8 hours, mirroring January's limitations. The year begins with shorter days, gradually lengthening through February and reaching a peak of 15 hours in the summer months of May, June, and July. However, as autumn takes its toll, daylight begins to recede once more, indicating a shift towards the cozy embrace of winter. This cyclical pattern of increasing and decreasing daylight not only shapes the landscape but also influences the local culture and activities, making each season in Flachau unique and reflective of nature’s rhythmic dance.

Average Daylight Hours in Flachau for December

The chart illustrates the variation in daylight duration in Flachau 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 38m15h 5m15h 50m15h 26m14h 8m12h 30m10h 49m9h 19m8h 32m
Data source: Flachau daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Flachau

As December settles over Flachau, Austria, the winter winds begin to whisper through the picturesque landscapes, averaging a gentle 1.7 m/s (4 mph). This is a slight increase from the calmer breezes of November, which averaged 1.5 m/s (3 mph). Notably, the transition to December marks a return to the wind speeds typical of the earlier months in the year, as temperatures dip and the charm of the snowy season envelops the region. With each passing month, the winds ebb and flow, but December holds a sweet spot of moderate breezes that harmonize beautifully with the tranquil winter scenery, inviting both adventure and serenity in equal measure.

Average December Wind Speed in Flachau

The chart displays monthly wind speed patterns in Flachau, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.61.71.91.81.51.61.41.41.71.51.7 m/s
Data source: Flachau December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Flachau Compares to Other Months

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

December and January in Flachau exhibit notable differences in weather characteristics. December experiences a slightly milder temperature range, with averages around -5°C (23°F), while January sees colder conditions with an average of -7°C (21°F). Precipitation levels are higher in December at 142 mm (5.6 in) over 18 days, compared to January's 95 mm (3.7 in) across 13 days, suggesting a drier start to the year. Additionally, humidity levels are only marginally higher in January at 91%, compared to December's 89%. For more detailed information, you can visit Flachau weather in January.

December and February in Flachau present distinct weather patterns, with December typically featuring colder temperatures that range from a minimum of -20°C (-4°F) to a maximum of 5°C (42°F). The average temperature hovers around -5°C (23°F), while December experiences substantial precipitation of 142 mm (5.6 in) over 18 days, coupled with high humidity at 89%. In contrast, February tends to be slightly milder, with temperatures ranging from -26°C (-15°F) to a maximum of 10°C (50°F), and an average of -4°C (25°F). The month sees reduced precipitation at 87 mm (3.4 in) over 12 days, along with a marginally lower humidity level at 87%. For more detailed weather insights, you can check Flachau weather in February.

December and March present distinctly different weather patterns. In December, temperatures typically range from a minimum of -20°C (-4°F) to a maximum of 5°C (42°F), with an average temperature of -5°C (23°F). The month experiences significant precipitation, with 142 mm (5.6 in) falling over 18 days, contributing to a high humidity level of 89%. In contrast, March sees a slight increase in average temperatures, peaking at 14°C (57°F) during the day, while the minimum drops to -23°C (-10°F). Precipitation is also lower, at 97 mm (3.8 in) over 16 days, and the humidity decreases to 82%. For more detailed insights about March weather, you can visit Flachau weather in March.

December weather is characterized by its chilling temperatures and frequent precipitation, with average lows around -20°C (-4°F) and highs reaching only 5°C (42°F). The month experiences about 142 mm (5.6 in) of precipitation over approximately 18 days, coupled with high humidity levels of 89%. In contrast, April sees a notable increase in temperature, with average lows around -16°C (4°F) and highs peaking at 19°C (66°F). The precipitation decreases to 87 mm (3.4 in) spread over 14 days, and humidity levels drop to 79%. For more specific insights on April weather patterns, you can view Flachau weather in April.

December and May present strikingly different weather patterns. In December, temperatures plunge, with averages around -5°C (23°F) and minimums dropping as low as -20°C (-4°F). The month is characterized by high humidity at 89% and significant precipitation, totaling 142 mm (5.6 in) over 18 days. In contrast, May experiences a much milder climate, with average temperatures rising to 7°C (44°F) and maximums reaching a pleasant 24°C (76°F). While precipitation increases to 171 mm (6.7 in) across 23 days, the humidity is notably lower at 74%. This seasonal shift is a beautiful transition from the frigid winter to the warmth of spring, ideal for those looking to explore the outdoors. For more details, check out Flachau weather in May.

December and June present a striking contrast in weather patterns. In December, temperatures can plunge as low as -20°C (-4°F) with an average of -5°C (23°F), while the maximum rarely exceeds 5°C (42°F). The month is characterized by high humidity at 89% and considerable precipitation, averaging 142 mm (5.6 in) over 18 days. In contrast, June boasts much milder temperatures ranging from a minimum of -2°C (29°F) to an average of 13°C (55°F) and a peak of 29°C (84°F). Despite experiencing a similar amount of precipitation at 134 mm (5.3 in) across 19 days, June’s lower humidity at 75% contributes to a more comfortable atmosphere. For a closer look at what June has to offer, check out Flachau weather in June.

December and July offer starkly contrasting weather experiences. In December, temperatures can plummet to a biting minimum of -20°C (-4°F), with average highs reaching only 5°C (42°F). This month sees a significant amount of precipitation, totaling 142 mm (5.6 in) over approximately 18 days, accompanied by high humidity at 89%. In contrast, July boasts a much milder climate, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 29°C (85°F) and an average of 13°C (56°F). While July experiences slightly more precipitation at 158 mm (6.2 in), it occurs over 21 days with a lower humidity level of 74%. For a more detailed look at what to expect, check out Flachau weather in July.

December and August present starkly contrasting weather conditions. December is a chilly month, with temperatures ranging from a frigid minimum of -20°C (-4°F) to an average of -5°C (23°F) and a maximum of 5°C (42°F). The month sees considerable precipitation, totaling 142 mm (5.6 in) over 18 days, coupled with high humidity levels at 89%. In contrast, August experiences much milder temperatures, with a minimum of -5°C (23°F), an average of 13°C (56°F), and a comfortable maximum of 27°C (81°F). This summer month is wetter, with precipitation reaching 199 mm (7.9 in) over 20 days, but the humidity is lower at 68%. For a closer look at what to expect in August, you can check out Flachau weather in August.

December and September showcase stark contrasts in weather. December is much colder, with temperatures averaging -5°C (23°F) and reaching a maximum of only 5°C (42°F), while September enjoys milder temperatures, averaging 9°C (49°F) and peaking at 24°C (76°F). Precipitation levels are similar, with December receiving 142 mm (5.6 in) over 18 days compared to September's 140 mm (5.5 in) across 15 days. Additionally, December's humidity is notably higher at 89%, making it feel even colder, whereas September experiences a lower humidity level of 74%. For more detailed information, you can visit Flachau weather in September.

In December, temperatures drop significantly, with minimums reaching -20°C (-4°F) and an average of -5°C (23°F), compared to October, where the temperatures range from a minimum of -8°C (18°F) to a maximum of 19°C (66°F). December also sees more precipitation, totaling 142 mm (5.6 in) over 18 days, while October experiences slightly less with 119 mm (4.7 in) over 12 days. The humidity remains high in both months, at 89% in December and 88% in October, but the colder temperatures in December create a much harsher winter environment. For a detailed look at October’s weather, visit Flachau weather in October.

In December, temperatures drop further with a minimum of -20°C (-4°F) and an average of -5°C (23°F), compared to November, which has a slightly milder minimum of -17°C (2°F) and an average of 0°C (32°F). The maximum temperature in December also sees a decline to 5°C (42°F), whereas November experiences a more temperate high of 13°C (56°F). Precipitation increases in December to 142 mm (5.6 in) over 18 days, compared to November's 112 mm (4.4 in) across 12 days. The humidity remains relatively high in both months, with December averaging 89% and November slightly higher at 90%. For a more detailed look, you can check Flachau weather in November.

Compare Flachau's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Flachau

December in Flachau brings a unique chill that sets it apart from other months, with temperatures often dipping to their lowest levels of the year. The average is a brisk -5°C, while the minimum can plunge to an icy -20°C, creating a winter wonderland perfect for snow sports enthusiasts. Precipitation is notable as well, with 18 days bringing about 142 mm of moisture, contributing to the region's stunning snow cover. Despite the cold and frequent dampness, the high humidity of 89% adds a distinct crispness to the air. For a deeper insight into how December's climate compares across the seasons, check out Flachau Climate.