December Weather in Kushiro, Japan

Last updated: August 21, 2025

December in Kushiro, Japan presents a blend of chilly temperatures and dynamic weather patterns. With maximums reaching 13°C (55°F) and averages hovering around 0°C (32°F), residents experience a stark chill, especially with minimums plummeting to -10°C (15°F). This month witnesses 56 mm (2.2 in) of precipitation, typically over seven days, contributing to the region's lush winter landscape. Coupled with a high humidity level of 79%, December in Kushiro offers a distinctly crisp but captivating atmosphere, perfect for embracing the beauty of the season.

December Temperature in Kushiro

In December, Kushiro, Japan experiences the crisp beginnings of winter, with temperatures gradually dipping from November’s relatively mild averages. The monthly range showcases a minimum of -10°C (15°F), an average of 0°C (32°F), and a maximum of 13°C (55°F). This transition into colder conditions marks a significant drop, as the city moves from the chill of late autumn into more pronounced winter temperatures. With frosty mornings and chilly afternoons, December sets the stage for a magical winter landscape, making it an ideal time for those who revel in the beauty of snow-covered scenery and winter festivities.

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

The chart illustrates December temperature patterns in Kushiro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kushiro, 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).
JanFebMarAprMayJunJulAugSepOctNovDec262533404854616562544432
Data source: Temperature data for Kushiro 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 Kushiro

In Kushiro, Japan, December marks the onset of winter with precipitation totaling 56 mm (2.2 in), falling over seven days. This amount reflects a slight decline from the 73 mm (2.9 in) recorded in November, indicating a transition into drier winter months. Compared to the wetter summer months, where August peaks at 134 mm (5.3 in), December presents a stark contrast. The precipitation pattern reveals a general trend of gradually increasing wetness from January through October, followed by a tapering off as the year closes. As temperatures drop and the landscape transforms, December’s weather serves as a gentle reminder of the cold, crisp winter ahead while maintaining a consistent rhythm of moisture, albeit in reduced quantities.

December Precipitation Trends in Kushiro

The chart displays monthly precipitation patterns in Kushiro, 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 Kushiro, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4439907393921011341051717356
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kushiro

In Kushiro, Japan, December marks a notable shift in humidity as it dips to 79%, making it one of the driest months of the year. This decline follows the peak summer months, where humidity levels soar, reaching a staggering 96% in August. The trend illustrates a gradual decrease from the autumn, where November's humidity sits at 80%, creating a refreshing change as winter approaches. Overall, December signals a transition into drier conditions, contrasting sharply with the muggy heat of the preceding season, providing a crisp and invigorating atmosphere as the year comes to a close.

December Average Humidity in Kushiro

This chart illustrates the average monthly humidity levels in Kushiro, 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 Kushiro is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%83%86%88%93%96%89%83%80%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kushiro

In December, Kushiro, Japan, experiences a significant dip in the UV Index, registering at 2, which falls into the low exposure category. This means residents and visitors have ample time to enjoy outdoor activities without the worry of quick sunburn, with a burn time of 45 minutes. Notably, this contrasts sharply with the soaring UV levels of summer months, where the index reaches a peak of 10 in July. As the year wraps up, the gradual decline in UV intensity illustrates a seasonal trend that emphasizes the importance of sun safety in the brighter months. For more information on daily UV levels throughout the year, visit Kushiro UV Index.

Maximum UV Index Levels in Kushiro for December

The chart shows the monthly maximum UV Index (UVI) for Kushiro 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 Kushiro typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2358891098532
Data source: Kushiro 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 Kushiro

December in Kushiro, Japan, brings a comforting return to daylight with 213 hours of sunshine, a notable increase from the previous month. This gradual upward trend in sunshine hours becomes clearer as the year progresses; starting with a modest 169 hours in January, the sunlight steadily grows, peaking in May with 294 hours. As winter approaches, the daylight begins to wane slightly but still retains a warm glow in December, providing a delightful respite from the chill. With each passing month, it's evident that Kushiro's winter days, while shorter than summer's, still offer a generous amount of sunshine, brightening the cold season and inviting residents and visitors alike to enjoy the city's winter charm.

Monthly Sunshine Duration in Kushiro: December Highlighted

The December sunshine duration represents the total number of hours Kushiro 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.
JanFebMarAprMayJunJulAugSepOctNovDec169h219h257h279h294h281h276h248h246h226h202h213h
Data source: Kushiro December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kushiro During December

In Kushiro, Japan, the likelihood of enjoying sunny weather in December stands at a promising 58%, making it one of the sunniest months of the year. This is a notable increase compared to the preceding months, particularly as the chances rise from 51% in January to a peak of 58% in December. As the year winds down, the trend shows a gradual improvement in sunny days, especially after the dip found during the summer months. This December, residents and visitors alike can look forward to clearer skies, offering a delightful backdrop for winter festivities and outdoor activities.

Percentage of Sunny Days in December in Kushiro

The chart illustrates the percentage of sunny days in Kushiro 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 Kushiro experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%46%42%40%27%33%14%27%35%42%52%58%
Data source: Kushiro December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kushiro in December

As winter settles in, Kushiro, Japan experiences a notable shift in daylight duration during December, with only 9 hours of daylight. This pattern mirrors November, highlighting a consistent reduction in sunlight as the year approaches its end. Following a gradual increase in daylight from January through June, peaking at a generous 15 hours, the trend reverses in mid-year. As the warmer months fade, daylight diminishes steadily from July to December. This cyclical pattern showcases the rhythm of the seasons, offering a serene yet stark beauty typical of Kushiro’s winter landscape.

Average Daylight Hours in Kushiro for December

The chart illustrates the variation in daylight duration in Kushiro 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 38m15h 17m14h 58m13h 52m12h 28m11h9h 43m9h 3m
Data source: Kushiro daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Kushiro

As December settles in Kushiro, Japan, the average wind speed hovers around 5.4 m/s (12 mph), marking a subtle yet significant shift in the climatic rhythm. The month kicks off with winds that remain relatively brisk, slightly lower than the peak experienced in November at 5.8 m/s (13 mph). This moderate wind speed is reminiscent of earlier winter months, where the speeds consistently ranged between 5.2 m/s and 5.6 m/s from January to April. However, as the year draws to a close, the annual trend reveals a remarkable decrease in wind activity during the summer months, particularly in July, when gusts dip to a gentle 2.9 m/s (6 mph). The transition back to winter winds showcases Kushiro's dynamic climate, where each season brings its own unique breeze, shaping the character of this vibrant region.

Average December Wind Speed in Kushiro

The chart displays monthly wind speed patterns in Kushiro, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.25.65.45.24.23.62.94.03.64.35.85.4 m/s
Data source: Kushiro December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Kushiro Compares to Other Months

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

December and January in Kushiro exhibit a notable transition in weather conditions. December typically presents milder temperatures, with averages around 0°C (32°F) and a maximum reaching 13°C (55°F), accompanied by 56 mm (2.2 in) of precipitation over 7 days. In contrast, January sees colder temperatures, marked by a minimum of -14°C (7°F) and an average of -4°C (26°F), along with reduced precipitation of 44 mm (1.7 in) over just 6 days. The humidity also slightly increases in January to 84%, compared to December's 79%. For more detailed information, you can check out Kushiro weather in January.

December and February present distinctly different winter weather patterns. In December, temperatures range from a minimum of -10°C (15°F) to a maximum of 13°C (55°F), with an average temperature of 0°C (32°F). This month sees about 56 mm (2.2 in) of precipitation over approximately 7 days, accompanied by a humidity level of 79%. In contrast, February is colder, with temperatures dipping to a minimum of -18°C (-1°F) and an average of -4°C (25°F), peaking at 6°C (43°F). The month receives less precipitation, totaling 39 mm (1.5 in) over 6 days, while humidity slightly increases to 83%. For more details on February's weather, visit Kushiro weather in February.

In December, the weather demonstrates a chilly atmosphere with minimum temperatures reaching -10°C (15°F) and an average around 0°C (32°F). This month experiences 56 mm (2.2 in) of precipitation over approximately 7 days, coupled with a humidity level of 79%. In contrast, March exhibits slightly increasing temperatures with a minimum of -12°C (11°F) and an average of 1°C (33°F). Precipitation rises to 90 mm (3.5 in) over about 9 days, signifying a wetter month, while humidity also increases to 83%. For a detailed look at March weather, you can visit Kushiro weather in March.

In December, the temperature ranges from a chilly minimum of -10°C (15°F) to a maximum of 13°C (55°F), with an average of 0°C (32°F). The month sees about 56 mm (2.2 in) of precipitation over approximately 7 days, and the humidity hovers around 79%. In contrast, April brings milder temperatures, with a minimum of -5°C (23°F) and a maximum of 16°C (61°F), leading to a slightly higher average of 4°C (40°F). Precipitation increases to 73 mm (2.9 in) spread over 9 days, accompanied by a higher humidity level of 83%. This change in weather signifies the transition from winter's chill to the refreshing spring season. For more details on the weather in this month, you can refer to Kushiro weather in April.

The contrast between December and May weather is quite pronounced. In December, temperatures can dip to a frigid -10°C (15°F), with an average around 0°C (32°F) and a maximum of 13°C (55°F). This month experiences about 56 mm (2.2 in) of precipitation over approximately 7 rainy days, accompanied by a humidity level of 79%. In stark contrast, May ushers in a milder climate, with temperatures ranging from a minimum of 2°C (37°F) to a comfortable maximum of 23°C (74°F), averaging around 9°C (49°F). The month is wetter, seeing 93 mm (3.7 in) of precipitation across 11 days, while humidity rises slightly to 86%. For a more detailed look at May conditions, you can explore Kushiro weather in May.

When comparing the weather in December and June, a stark contrast emerges. December experiences colder temperatures, with a minimum of -10°C (15°F) and an average of 0°C (32°F), while June offers milder conditions, ranging from a minimum of 5°C (41°F) to an average of 12°C (54°F). Precipitation is also notable; December sees 56 mm (2.2 in) over 7 days, whereas June receives more rain, totaling 92 mm (3.6 in) across 10 days. Additionally, humidity levels are higher in June at 88%, compared to 79% in December, contributing to a noticeably different feel in the air during these months. For more details on June weather in Kushiro, visit Kushiro weather in June.

In comparing the weather of December and July, it’s clear that these two months offer strikingly different climates. December sees temperatures ranging from a chilly minimum of -10°C (15°F) to a maximum of 13°C (55°F), with an average of 0°C (32°F). During this month, precipitation totals around 56 mm (2.2 in) and occurs on approximately 7 days, accompanied by a humidity level of 79%. In contrast, July features much warmer conditions, with minimum temperatures of 9°C (48°F), an average of 16°C (61°F), and a maximum of 25°C (78°F). This month receives higher precipitation, totaling about 101 mm (4.0 in) over 9 days, and experiences increased humidity at 93%. For a more detailed look at Kushiro's July weather, visit Kushiro weather in July.

December and August present strikingly different weather patterns. In December, temperatures can drop as low as -10°C (15°F) and only reach an average of 0°C (32°F), showing a clear chill in the air. With precipitation at 56 mm (2.2 in) over 7 days, the month has a notable humidity of 79%, making it feel quite cold. In contrast, August boasts much warmer conditions, with minimum temperatures around 12°C (54°F) and average highs of 27°C (81°F). The month experiences more overall precipitation at 134 mm (5.3 in) spread over 12 days, accompanied by high humidity levels of 96%. For more detailed insights into the August climate, check out Kushiro weather in August.

In December, temperatures range from a frigid -10°C (15°F) to a mild 13°C (55°F), with an average temperature hovering around 0°C (32°F). The month experiences about 56 mm (2.2 in) of precipitation over approximately 7 days, accompanied by humidity levels at 79%. In contrast, September offers a much warmer climate, with temperatures varying from a minimum of 9°C (48°F) to a comfortable maximum of 25°C (77°F) and an average of 17°C (62°F). However, it is also wetter, receiving 105 mm (4.2 in) of precipitation spread over about 10 days and slightly higher humidity at 89%. For more details on September weather, you can visit Kushiro weather in September.

December weather showcases a stark contrast to October, with significantly colder temperatures. While October experiences milder conditions with average highs around 12°C (55°F) and lows of 3°C (38°F), December brings chilly weather with a maximum of only 13°C (55°F) and a minimum plunging to -10°C (15°F). Additionally, October is much wetter, featuring 171 mm (6.7 in) of precipitation over 12 days, compared to December's 56 mm (2.2 in) spread over just 7 days. Humidity remains relatively high in both months, at 79% for December and 83% for October. For more insights on the October weather specifics, visit Kushiro weather in October.

In December, temperatures drop significantly compared to November, with minimums reaching -10°C (15°F) and an average of 0°C (32°F). In contrast, November sees milder conditions, with a minimum of -5°C (23°F) and an average of 7°C (44°F). Both months experience a similar level of humidity, around 79% in December and 80% in November, but December sees less precipitation overall at 56 mm (2.2 in) compared to November's 73 mm (2.9 in) over slightly fewer days. For more details on November's weather specifics, you can visit Kushiro weather in November.

Compare Kushiro's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Kushiro

As December unfolds in Kushiro, the weather begins to shift dramatically from the milder months of fall. With average temperatures hovering around 0°C (32°F), the charm of winter sets in, making it a time to embrace the chill. The city experiences a notable increase in precipitation, with around 56 mm falling over the course of the month, leading to a 79% humidity that adds to the crisp air. The contrast of chilly days, where daytime highs may reach 13°C (55°F) but can plummet to a frigid -10°C (15°F) at night, sets December apart from its autumn predecessors. This unique blend of winter weather makes it an ideal time for visitors and locals alike to enjoy the seasonal beauty and activities of Kushiro. For more insights into how December's weather compares throughout the year, check our detailed Kushiro Climate resource.