December Weather in Yuzawa, Japan

Last updated: August 21, 2025

In December, Yuzawa, Japan experiences a dramatic weather shift characterized by temperatures that fluctuate from a brisk -14°C (7°F) at night to a mild 18°C (65°F) during the day. The average temperature hovers around 0°C (32°F), making it essential for visitors to bundle up adequately. This month is also marked by significant precipitation, accumulating to about 226 mm (8.9 in) over 22 days, contributing to the region's lush landscape and ski-ready slopes. With humidity levels soaring at 86%, the air can feel quite chilly, particularly in the evenings, wrapping the town in a winter wonderland that beckons outdoor enthusiasts and snow-lovers alike.

December Temperature in Yuzawa

Yuzawa, Japan welcomes December with a chill in the air, as temperatures drop significantly, with minimums reaching -14°C (7°F) and average temperatures hovering around 0°C (32°F). This marks a transition from the slightly milder late November, creating a wintry landscape perfect for skiing enthusiasts. The mercury can peak at 18°C (65°F), offering brief respites from the cold, yet the overall sensation remains distinctly frigid. As December unfolds, residents and visitors alike can expect a captivating winter atmosphere, setting the stage for Yuzawa's renowned snowy adventures while highlighting the stark contrasts that define this beautiful season.

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

The chart illustrates December temperature patterns in Yuzawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yuzawa, 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).
JanFebMarAprMayJunJulAugSepOctNovDec272837465864727566564432
Data source: Temperature data for Yuzawa 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 Yuzawa

In December, Yuzawa experiences a notable increase in precipitation, with 226 mm (8.9 inches) of rainfall spread across 22 days. This rise in moisture marks the beginning of winter's embrace, as snowfall becomes more frequent in the mountainous region. While November had a milder 145 mm (5.7 inches) of rain, December often signals a transition, with the weather patterns shifting toward colder, snow-laden days. The late autumn chill coupled with the increased precipitation not only enhances the region's beautiful winter scenery but also prepares Yuzawa for the thriving ski season ahead. The consistency in rainy days, mirroring January’s and February’s counts, suggests that this period is characterized by regular bouts of precipitation, solidifying December's role as a pivotal month in Yuzawa's climatic calendar.

December Precipitation Trends in Yuzawa

The chart displays monthly precipitation patterns in Yuzawa, 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 Yuzawa, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec199185174167181201376238223256145226
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Yuzawa

In Yuzawa, Japan, December maintains a humidity level of 86%, reflecting a slight drop from the preceding months. The winter chill settles in, and while the humidity is high, it often feels more comfortable compared to the sweltering summer months of July and August, when humidity peaks at 92%. This consistent moisture throughout the year, particularly in the winter season, emphasizes Yuzawa's unique climate—where even as temperatures fall, the air retains its dampness, contributing to the area's picturesque winter landscapes and vibrant snow-covered scenery. The transition from autumn's 85% in November to December's 86% indicates a stable, cool environment that is characteristic of this stunning region.

December Average Humidity in Yuzawa

This chart illustrates the average monthly humidity levels in Yuzawa, 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 Yuzawa is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%79%81%88%92%92%89%87%85%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Yuzawa

As December arrives in Yuzawa, Japan, the UV Index drops to a mild 3, placing it in the moderate exposure category with a burn time of about 30 minutes. This transition from autumn to winter reflects a general downward trend in UV levels, following a peak of 11 during the summer months when sun exposure was at its most intense. The colder months see a significant reduction in UV intensity, allowing for longer outdoor enjoyment without immediate sunburn risks. As you plan your activities, remember that even in winter, some UV protection is still wise—check out the details in the full seasonal report at Yuzawa UV Index.

Maximum UV Index Levels in Yuzawa for December

The chart shows the monthly maximum UV Index (UVI) for Yuzawa 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 Yuzawa typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4589101111119753
Data source: Yuzawa 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 Yuzawa

As winter descends upon Yuzawa, Japan, December brings a unique blend of sunshine and snow. With 199 hours of sunlight, the month sees a transition from the crisp days of November, which had slightly more sunshine at 216 hours. This slight dip marks the beginning of the cold season, where daylight hours steadily decrease. However, the trend in sunlight is poised for a notable increase as the year progresses, peaking in the vibrant spring months of March and April, which showcase a spectacular 254 and 278 hours respectively. While December might be shorter in daylight, it sets the stage for the stunning sun-dappled winter landscapes that Yuzawa is famous for, reminding us that even amidst the chill, a little sunshine can go a long way in brightening the winter months.

Monthly Sunshine Duration in Yuzawa: December Highlighted

The December sunshine duration represents the total number of hours Yuzawa 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.
JanFebMarAprMayJunJulAugSepOctNovDec162h212h254h278h302h285h271h294h249h217h216h199h
Data source: Yuzawa December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yuzawa During December

In Yuzawa, Japan, the likelihood of sunny weather in December stands at 29%, reflecting a modest chance for bright days as the year winds down. This percentage showcases a slight dip from the preceding month of November, which enjoys a sunnier profile with a 40% chance of sunshine. Interestingly, while December's figure is lower than November’s, it captures a tendency towards increased sunshine compared to the chillier winter months that follow. The data indicates that December positions itself uniquely between the fading autumn and the arrival of heavier snowfall in January, making it a vibrant time for those eager to experience a blend of clear skies and winter activities.

Percentage of Sunny Days in December in Yuzawa

The chart illustrates the percentage of sunny days in Yuzawa 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 Yuzawa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%32%26%41%22%22%30%20%26%32%40%29%
Data source: Yuzawa December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yuzawa in December

In Yuzawa, Japan, the daylight duration exhibits a rhythmic ebb and flow throughout the year, creating a captivating seasonal tapestry. Starting with 9 hours of daylight in January, the days gradually lengthen, peaking at an invigorating 14 hours from May to July. As summer fades, the daylight starts to retreat again, sliding back to 13 hours in August and sequentially decreasing to 9 hours by December. This cyclical pattern not only enhances the beauty of each season but also influences the local lifestyle, as residents embrace longer days in spring and summer while savoring the cozier, shorter days of winter.

Average Daylight Hours in Yuzawa for December

The chart illustrates the variation in daylight duration in Yuzawa throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 55m10h 48m11h 57m13h 8m14h 8m14h 38m14h 23m13h 31m12h 23m11h 12m10h 10m9h 39m
Data source: Yuzawa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Yuzawa

As December breezes into Yuzawa, Japan, the average wind speed reaches 1.9 m/s (4 mph), gently inviting the onset of winter’s embrace. This month sees a subtle increase from the relatively calm conditions of November, hinting at seasonal shifts in the air. Throughout the year, wind speeds generally maintain a steady but gentle rhythm, most notably peaking in the spring months of April at 2.2 m/s (5 mph) and gradually softening through the summer. However, December’s wind, while still mild compared to other times of the year, reinforces a trend of increasing dynamism, as colder temperatures summon a brisker atmosphere. The delicate dance of winds reflects the transition from vibrant autumn to the serene chill of winter, wrapping Yuzawa in a chilly yet invigorating embrace.

Average December Wind Speed in Yuzawa

The chart displays monthly wind speed patterns in Yuzawa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.82.12.02.22.01.51.41.51.71.61.71.9 m/s
Data source: Yuzawa December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Yuzawa Compares to Other Months

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

December and January weather in the region exhibit notable differences despite their proximity on the calendar. In December, temperatures can range from a minimum of -14°C (7°F) to a maximum of 18°C (65°F), with an average temperature around 0°C (32°F). The month sees significant precipitation, totaling 226 mm (8.9 in) over 22 days, contributing to high humidity levels at 86%.

In contrast, January experiences a cooler average temperature of -3°C (28°F) with maximums capped at 8°C (47°F) while maintaining the same minimum of -14°C (6°F). Precipitation is slightly lower at 199 mm (7.8 in), also spread over 22 days, and the humidity rises marginally to 88%. For more specifics on what to expect, you can check Yuzawa weather in January.

December and February showcase distinct yet comparably cold weather patterns. In December, temperatures fluctuate between a minimum of -14°C (7°F) and a maximum of 18°C (65°F), with an average temperature around 0°C (32°F). The month experiences considerable precipitation, totaling 226 mm (8.9 in) over 22 days, while maintaining a high humidity level of 86%. In contrast, February tends to be even colder, with temperatures ranging from a minimum of -19°C (-2°F) to a maximum of 14°C (57°F), and an average of -2°C (29°F). Precipitation in February is slightly less, at 185 mm (7.3 in), also spread over 22 days, with humidity remaining consistent at 86%. For more details, check out Yuzawa weather in February.

In December, temperatures in Yuzawa range from a chilly minimum of -14°C (7°F) to a maximum of 18°C (65°F), with an average hovering around the freezing point at 0°C (32°F). The month experiences significant precipitation, totaling 226 mm (8.9 in) over 22 days, and the humidity levels remain high at 86%. In contrast, March brings slightly milder conditions, featuring temperatures that range from a minimum of -10°C (14°F) to a maximum of 20°C (68°F), with an average temperature of 3°C (37°F). Precipitation decreases to 174 mm (6.9 in) observed over 20 days, and humidity is slightly lower at 81%. For more details on the weather during this month, visit Yuzawa weather in March.

December and April exhibit distinctly different weather patterns. In December, temperatures can plunge as low as -14°C (7°F), with an average around 0°C (32°F) and a maximum reaching 18°C (65°F). This month also sees significant precipitation, totaling 226 mm (8.9 in) over 22 days, accompanied by high humidity levels at 86%. In contrast, April brings milder conditions, with temperatures ranging from a minimum of -7°C (20°F) to a pleasant average of 8°C (46°F) and a maximum of 26°C (79°F). While April experiences less precipitation at 167 mm (6.6 in) across 18 days and lower humidity at 78%, it marks a notable transition towards the warmer and more vibrant spring season. For more details on the weather during this time, check the link: Yuzawa weather in April.

December and May present stark contrasts in weather. In December, temperatures can plummet to a chilling minimum of -14°C (7°F), with an average of around 0°C (32°F) and highs reaching only 18°C (65°F). This month also sees significant precipitation, with 226 mm (8.9 in) over 22 days, contributing to a high humidity level of 86%. In contrast, May brings a much milder climate, where temperatures rarely drop below 1°C (34°F) and can soar to a maximum of 30°C (86°F) with an average of 15°C (58°F). Although May still experiences precipitation, it is less intense, totaling 181 mm (7.1 in) over 16 days, along with slightly lower humidity at 81%. For a more detailed look at May weather, visit Yuzawa weather in May.

When comparing the weather in December and June, there's a stark contrast in temperatures. December sees frigid conditions with a minimum temperature of -14°C (7°F) and an average around freezing at 0°C (32°F), while June offers a milder range with temperatures starting from a minimum of 6°C (43°F) and soaring to a pleasant maximum of 30°C (86°F). Precipitation is somewhat similar, with December experiencing 226 mm (8.9 in) over 22 days, compared to June's 201 mm (7.9 in) across 18 days. Additionally, both months exhibit high humidity levels, slightly elevated in December at 86% compared to June's 88%. For more insights into June’s weather, visit Yuzawa weather in June.

December and July present starkly contrasting weather patterns. In December, temperatures can plunge as low as -14°C (7°F), with an average of around 0°C (32°F) and a maximum of 18°C (65°F). This month also experiences considerable precipitation, totaling 226 mm (8.9 in) over 22 days, paired with high humidity at 86%. In contrast, July brings much warmer conditions, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 32°C (90°F) and an average of 22°C (73°F). Rainfall increases in July, reaching 376 mm (14.8 in) across 24 days, and humidity rises slightly to 92%. The differences in both temperature and precipitation illustrate how the two months offer distinctly different experiences. For more detailed information, visit Yuzawa weather in July.

In December, temperatures in Yuzawa can reach a stark low of -14°C (7°F), with an average hovering around 0°C (32°F) and occasional peaks of up to 18°C (65°F). The month experiences frequent precipitation, totaling 226 mm (8.9 in) over about 22 days, accompanied by high humidity levels of 86%. In contrast, August brings a much warmer climate, with temperatures ranging from a minimum of 10°C (50°F) to a sizzling maximum of 33°C (91°F) and an average of 24°C (75°F). Precipitation is slightly higher at 238 mm (9.4 in), also spread across 22 days, but with an increased humidity of 92%. For more detailed information, you can check Yuzawa weather in August.

December and September weather exhibit notable contrasts. In December, temperatures can plummet to a chilling minimum of -14°C (7°F), with an average of 0°C (32°F) and a maximum of only 18°C (65°F). The month also sees substantial precipitation, totaling 226 mm (8.9 in) over 22 days, and high humidity at 86%. In contrast, September enjoys milder temperatures, with a minimum of 6°C (43°F), an average of 19°C (67°F), and highs reaching up to 31°C (89°F). While precipitation is slightly lower at 223 mm (8.8 in) over 19 days, the humidity remains high at 89%. For more information about September weather, check out Yuzawa weather in September.

In comparing the weather between December and October, we observe significant differences in temperature and precipitation patterns. December experiences colder conditions, with average temperatures hovering around 0°C (32°F), while October boasts milder weather, with an average of 13°C (56°F). Precipitation in October is slightly higher at 256 mm (10.1 in) over 18 days, compared to December's 226 mm (8.9 in) with rain observed on 22 days. Humidity levels remain quite comparable, with December at 86% and October at 87%. For more details about October's climate, you can refer to Yuzawa weather in October.

December weather in Yuzawa brings a significant drop in temperatures compared to November, with a minimum of -14°C (7°F) and an average of 0°C (32°F) versus November's milder minimum of -9°C (17°F) and average of 6°C (44°F). While both months experience considerable precipitation, December sees higher levels at 226 mm (8.9 in) across 22 days, compared to November's 145 mm (5.7 in) over 18 days. The humidity remains similar between the months, with December at 86% and November at 85%. For more information on November's weather, you can check Yuzawa weather in November.

Compare Yuzawa's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Yuzawa

As December unfolds in Yuzawa, the weather takes a distinct turn, contrasting sharply with the milder months preceding it. The average temperature hovers around 0°C (32°F), a notable drop that brings the crispness of winter to the air. With an impressive 226 mm of precipitation over 22 days, December is one of the wettest months, often marked by soft, falling snowflakes that create a picturesque landscape. The humidity lingers at a high 86%, making the cold feel even more pronounced. This wintry atmosphere sets the stage for outdoor activities like skiing, making Yuzawa a haven for winter sports enthusiasts. For a more detailed understanding of Yuzawa's weather patterns throughout the year, check out Yuzawa Climate.