December Weather in Sapporo, Japan

Last updated: August 21, 2025

December in Sapporo, Japan offers a unique winter experience characterized by chilly temperatures and occasional snowfall. With a maximum of 11°C (53°F) and an average low of -3°C (26°F), the city transforms into a winter wonderland, where the mercury can dip as low as -15°C (6°F). The month sees 78 mm (3.1 in) of precipitation spread over 22 days, contributing to its moist atmosphere and elevated humidity levels of about 80%. Visitors can expect a magical mix of frosty air and snow-laden landscapes, making Sapporo a quintessential winter destination.

December Temperature in Sapporo

In December, Sapporo experiences a significant drop in temperatures as winter firmly sets in, with minimums plunging to -15°C (6°F) and an average of -3°C (26°F). This month marks a noticeable transition from the milder conditions of fall, descending into a chill that envelops the city. The maximum temperature peaks at a mild 11°C (53°F), a stark contrast to the biting cold of January, signaling the deepening of winter. As snow begins to blanket the landscape, Sapporo transforms into a winter wonderland, offering both crisp air and stunning scenery, perfect for those seeking to enjoy the festive spirit amidst the chill.

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

The chart illustrates December temperature patterns in Sapporo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sapporo, 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).
JanFebMarAprMayJunJulAugSepOctNovDec212232415359686963513926
Data source: Temperature data for Sapporo 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 Sapporo

In December, Sapporo experiences a significant uptick in precipitation, with 78 mm (3.1 in) falling over an average of 22 days. This trend marks a notable increase from the preceding months, where November recorded 117 mm across 20 days. As the year draws to a close, the city's winter season is firmly established, and the persistent drizzle adds a unique charm to its snowy landscape. While precipitation begins to taper off slightly compared to the wet summer months, the steady frequency of rainfall and the cold temperatures create a distinctly wintry atmosphere, setting the stage for festive holiday celebrations amidst the serene snow-covered environment.

December Precipitation Trends in Sapporo

The chart displays monthly precipitation patterns in Sapporo, 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 Sapporo, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec566386879412311318312612011779
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sapporo

In Sapporo, Japan, December marks a subtle shift towards cooler and drier conditions, with humidity levels settling at 80%. This contrasts with the_peak summer months of July and August, where humidity soars to 93% and 95%, respectively. As the temperatures begin to drop, the fall months see a gradual decrease in moisture, culminating in November's 79% humidity. While December's figures remain relatively high compared to other periods, they reflect the transition from the oppressive humidity of summer. Overall, Sapporo experiences a notable cycle of humidity throughout the year, with winter months offering a refreshing respite from the heavier air of summer.

December Average Humidity in Sapporo

This chart illustrates the average monthly humidity levels in Sapporo, 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 Sapporo is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%81%81%86%87%93%95%88%83%79%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sapporo

In December, Sapporo experiences a notable drop in UV exposure, with a UV Index of 2, categorized as low. This means residents and visitors can enjoy the winter season without the intense sun protection needed in the preceding months, as the burn time extends to 45 minutes. This gentle transition from the high UV levels seen from May through August reflects the natural ebb and flow of seasonal changes. With such low levels, December provides a perfect opportunity to revel in snow-covered landscapes while basking in the crisp air, making it a charming time to explore the beauty of Sapporo. For more insights on UV levels throughout the year, check out Sapporo UV Index.

Maximum UV Index Levels in Sapporo for December

The chart shows the monthly maximum UV Index (UVI) for Sapporo 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 Sapporo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2367999108532
Data source: Sapporo 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 Sapporo

December in Sapporo marks a gentle transition as the days shorten and the landscape is blanketed in snow. With 163 hours of sunshine, this month experiences a slight dip from November's 177 hours, signaling the onset of winter’s embrace. However, as the year draws to a close, Sapporo's sunlight patterns reflect a recurring trend: a gradual increase from the deep winter months of January and February, where only 133 and 189 hours are recorded, respectively. By the time spring blossoms in March, sunshine hours surge significantly, reaching 243 hours, setting the stage for the vibrant energy of the coming seasons. This interplay of diminishing daylight in December brings a unique charm to Sapporo, where the soft glow of the sun cuts through the winter chill, inviting both locals and visitors to savor the beauty and tranquility of the snowy landscape.

Monthly Sunshine Duration in Sapporo: December Highlighted

The December sunshine duration represents the total number of hours Sapporo 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.
JanFebMarAprMayJunJulAugSepOctNovDec133h189h243h287h309h297h321h292h269h234h177h163h
Data source: Sapporo December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sapporo During December

In December, Sapporo experiences a 32% chance of sunny weather, which is relatively consistent with the preceding months. While November offers a slight uptick at 35%, December's sun probability aligns closely with the generally overcast trends of the winter season. The data suggests that as the year progresses into spring, the likelihood of sunshine gradually increases, with March peaking at 35%. Conversely, the late fall and early winter months seem to favor cloudier skies, making bright sunny days in December a delightful surprise rather than the norm.

Percentage of Sunny Days in December in Sapporo

The chart illustrates the percentage of sunny days in Sapporo 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 Sapporo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%25%35%40%24%42%39%28%32%32%35%32%
Data source: Sapporo December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sapporo in December

In December, Sapporo, Japan, experiences a wintery landscape where daylight lingers for just 9 hours, mirroring the brief daylight of November. This marks the culmination of a gradual decline that began in September when daylight began to dwindle from the summer peak of 15 hours in June. As the year progresses from the bright days of spring and summer, the most significant shift occurs between May and October, when daylight decreases sharply. The transition into winter emphasizes the stark contrast between long summer evenings and the short, crisp winter days, creating a unique seasonal rhythm that characterizes life in this northern city.

Average Daylight Hours in Sapporo for December

The chart illustrates the variation in daylight duration in Sapporo throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 23m10h 30m11h 56m13h 24m14h 39m15h 17m14h 58m13h 52m12h 28m11h9h 43m9h 2m
Data source: Sapporo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Sapporo

As December settles over Sapporo, Japan, the wind begins to make its presence felt, with an average speed of 3.0 m/s (7 mph). This marks a slight increase from the lighter breezes of the summer months, where averages dropped to around 2.3-2.4 m/s. As the year comes to a close, there's a noticeable transition; December sits among the months with the highest wind speeds, alongside January, February, and November, all hovering around 3.0 m/s. This uptick suggests a seasonal shift, where the chill of winter is welcomed with breezy gusts, creating a brisk atmosphere that enhances the city’s winter charm. Overall, the winds of December in Sapporo encapsulate that refreshing transition, heralding the cold season's arrival.

Average December Wind Speed in Sapporo

The chart displays monthly wind speed patterns in Sapporo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.93.12.93.32.92.32.42.32.52.62.93.0 m/s
Data source: Sapporo December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Sapporo Compares to Other Months

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

December and January in Sapporo exhibit a notable shift in weather patterns. December features a milder average temperature of -3°C (26°F), while January sees a drop to an average of -6°C (21°F). January is colder, with minimum temperatures reaching as low as -19°C (-2°F) compared to December's -15°C (6°F). Precipitation is more pronounced in December, with 78 mm (3.1 in) over 22 days, whereas January, with 56 mm (2.2 in) of precipitation over 13 days, is somewhat drier. Humidity levels also rise slightly from 80% in December to 84% in January. For more details about January weather in Sapporo, check out Sapporo weather in January.

In December, temperatures in Sapporo typically range from a minimum of -15°C (6°F) to a maximum of 11°C (53°F), with an average temperature around -3°C (26°F). The month experiences considerable precipitation, totaling 78 mm (3.1 in) over approximately 22 days, and the humidity sits at around 80%. In contrast, February tends to be colder, with minimum temperatures dropping to -17°C (2°F) and a maximum of only 5°C (42°F), resulting in an average temperature of -5°C (23°F). Precipitation decreases slightly to 63 mm (2.5 in) over about 18 days, with a higher humidity level of 83%. For more detailed insights, you can check Sapporo weather in February.

In December, the weather exhibits colder temperatures, with a minimum of -15°C (6°F) and an average around -3°C (26°F), while it can reach a mild maximum of 11°C (53°F). The month sees significant precipitation of 78 mm (3.1 in) spread over 22 days, coupled with a high humidity level of 80%. In contrast, March experiences slightly warmer conditions, with temperatures ranging from a minimum of -13°C (9°F) to an average of 0°C (32°F) and a maximum of 14°C (58°F). Although March has a bit more precipitation at 86 mm (3.4 in), it occurs over fewer days, 14 in total, and maintains a similar humidity of 81%. For more detailed information, you can check out Sapporo weather in March.

December and April present distinctly contrasting weather experiences. In December, temperatures can plunge as low as -15°C (6°F), with an average of -3°C (26°F) and a maximum of 11°C (53°F). This month also sees a considerable amount of precipitation, totaling 78 mm (3.1 in) over approximately 22 days, and a humidity level around 80%. In contrast, April marks a noticeable warming trend, with minimum temperatures of -6°C (21°F) and an average of 5°C (41°F). The maximum temperature can reach a much milder 20°C (69°F). Interestingly, April has slightly higher precipitation at 87 mm (3.4 in), but spread over just 13 days, maintaining similar humidity at 81%. For further details on what to expect, you can check Sapporo weather in April.

December and May offer distinctly different weather experiences. In December, temperatures can dip as low as -15°C (6°F), with an average of -3°C (26°F) and a maximum of up to 11°C (53°F). The month is characterized by high humidity at 80%, with precipitation occurring on 22 days, totaling 78 mm (3.1 in). Conversely, May brings a significant warm-up, featuring minimum temperatures of 2°C (36°F) and maximums reaching 30°C (87°F), alongside an average of 12°C (53°F). While it rains a bit more in May, with 94 mm (3.7 in) over 12 days, the humidity also rises slightly to 86%. For more details, you can check out Sapporo weather in May.

December and June present distinct contrasts in weather. In December, temperatures can drop as low as -15°C (6°F) with an average of -3°C (26°F), while June feels much warmer, with temperatures ranging from a minimum of 6°C (42°F) to a comfortable average of 15°C (60°F) and highs reaching 26°C (80°F). Precipitation is more frequent in December, occurring over 22 days and totaling 78 mm (3.1 in), while June experiences fewer rainy days (12), yet accumulates more precipitation at 123 mm (4.8 in). Additionally, humidity levels are slightly higher in June at 87% compared to 80% in December, contributing to a more humid feel during the summer month. For more detailed information, check out Sapporo weather in June.

December and July present stark contrasts in weather patterns. December typically sees frigid temperatures, with minimums plunging to -15°C (6°F) and an average of -3°C (26°F), while July enjoys milder conditions, with minimums around 9°C (49°F) and an average of 20°C (68°F). Precipitation levels also differ, with December receiving 78mm (3.1 inches) over 22 days compared to July's higher total of 113mm (4.5 inches) over just 12 days. Furthermore, the humidity is notably higher in July at 93%, compared to December’s 80%. For more information, you can check out Sapporo weather in July.

In December, Sapporo experiences a much colder climate with temperatures ranging from a minimum of -15°C (6°F) to a maximum of 11°C (53°F), resulting in an average temperature of -3°C (26°F). The month sees significant precipitation spread out over 22 days, with a total of 78 mm (3.1 in) and a humidity level around 80%. In contrast, August brings a dramatic shift in weather; temperatures soar with daily averages reaching 21°C (69°F) and maximums hitting 31°C (88°F). The city also experiences higher precipitation in this summer month, totaling 183 mm (7.2 in) over just 14 days, coupled with humidity levels peaking at 95%. For more details on August weather in Sapporo, you can refer to Sapporo weather in August.

In December, Sapporo experiences much colder temperatures, with a minimum of -15°C (6°F) and an average of -3°C (26°F), compared to September's milder range of 4°C (40°F) to 29°C (84°F) and an average of 17°C (63°F). Precipitation levels are also notable; December sees 78 mm (3.1 in) over 22 days, while September has higher rainfall at 126 mm (5.0 in) across just 14 days. Additionally, humidity levels are slightly lower in December at 80%, compared to September's 88%. For a more detailed look at September weather in Sapporo, you can visit Sapporo weather in September.

In comparing the weather patterns of December and October, it is evident that December is significantly colder, with average temperatures ranging from a minimum of -15°C (6°F) to a maximum of 11°C (53°F). In contrast, October experiences milder conditions, with temperatures ranging from -1°C (30°F) to 24°C (76°F), making it a much more temperate month. Additionally, while both months see considerable precipitation, October records a higher total of 120 mm (4.7 in) over 17 days, compared to December's 78 mm (3.1 in) over 22 days. Humidity levels are similarly high in both months, hovering around 80% in December and slightly higher at 83% in October. For a more detailed overview, you can explore Sapporo weather in October.

December weather contrasts sharply with November in several key aspects. In December, temperatures drop further, with a minimum of -15°C (6°F) compared to November's milder minimum of -8°C (18°F). The average temperature in December is -3°C (26°F), which is significantly colder than November's average of 4°C (39°F). Although December sees a decrease in total precipitation, dropping to 78 mm (3.1 in) over 22 days, it still has considerable humidity at 80%, slightly higher than November’s 79%. For more details, you can check Sapporo weather in November.

Compare Sapporo's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Sapporo

As December unfolds in Sapporo, the city transforms into a winter wonderland, embracing colder temperatures that contrast sharply with the milder conditions of previous months. With average temperatures dipping to a brisk -3°C (26°F), residents and visitors alike should prepare for the chill, especially with minimum lows plunging to -15°C (6°F). The humidity remains relatively high at 80%, contributing to the frosty air that envelops the city. Additionally, December brings considerable precipitation, with an average of 78 mm (3.1 in) falling over 22 days, so it's wise to have an umbrella or snow gear at the ready. This month sets the stage for Sapporo's famed winter festivities, making it a unique time to experience the city. For a deeper dive into what Sapporo has to offer throughout the year, check out Sapporo Climate.