Last updated: August 21, 2025
In Morioka, Japan, December brings a chill to the air, with temperatures ranging from a maximum of 12°C (54°F) to a brisk minimum of -14°C (7°F), averaging around -2°C (29°F). As the month progresses, residents and visitors can expect significant precipitation, totaling 89 mm (3.5 in) over 17 days, contributing to the wintry atmosphere. With an average humidity level of 80%, the cold can feel even more pronounced, making it essential to bundle up when enjoying the seasonal charm of this picturesque city.
In Morioka, Japan, December ushers in the heart of winter with temperatures reflecting a steady decline. The month begins with minimums around -14°C (7°F) and an average just below freezing at -2°C (29°F), while daytime highs reach a brisk 12°C (54°F). This trend of cooling marks a significant drop compared to the mild autumn transition in November, where temperatures lingered above zero. As the year winds down, the stark contrast between the chilly nights and relatively moderate days highlights the region's cold climate, setting the stage for the deep winter months ahead. Visitors can expect a serene yet chilly environment, perfect for enjoying seasonal festivities amidst the picturesque snowy landscape.
In December, Morioka, Japan, experiences a notable increase in precipitation, with an average of 89 mm (3.5 in) falling over the course of 17 days. This uptick in rainfall marks a contrast to the preceding months, where November saw only 66 mm over 11 days. December's precipitation not only contributes to the region's lush winter landscape but also highlights a trend of increasing moisture leading into the colder months. As the city wraps up the year, the consistent rain creates a picturesque setting that encapsulates the beauty of winter in Morioka.
In Morioka, Japan, December marks a notable shift in humidity, maintaining a level of 80% that aligns closely with the preceding months of January and May. Despite the transition into winter, when one might expect drier conditions, the humidity remains relatively stable compared to the peak summer months of July and August, which soar to 92%. This seasonal trend reflects a gradual decline from the high humidity of early summer, as the year progresses through February’s 79% down to April’s 75%. However, as December approaches, the humidity experiences a slight resurgence, echoing the consistency seen in late spring, making the season feel brisk yet comfortably moist and lending a unique charm to the end of the year in Morioka.
In December, Morioka experiences a moderate UV Index of 3, similar to the early winter months of January and February, where sun exposure is manageable and burn time extends to about 30 minutes. This trend illustrates a gradual decline from the more intense UV levels observed in the spring and summer months, peaking in June and August with extremes reaching 11. As the year ends, residents and visitors can enjoy the crisp air knowing that UV radiation is significantly lower, allowing for safer outdoor activities. To learn more about the UV Index throughout the year, visit Morioka UV Index.
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December in Morioka, Japan, experiences a cozy average of 188 hours of sunshine, marking a subtle decline as the year draws to a close. This month stands out as the days grow shorter, contrasting with the luminous peaks of May, when the sun shines for 287 hours, and April, which boasts 257 hours of radiant daylight. Interestingly, December’s sunshine hours reflect a notable dip from the vibrant levels seen in the autumn months of October and November, where light lingers for 207 and 202 hours, respectively. As Morioka transitions into winter, the serene beauty of the season is accompanied by a soft embrace of sunlight, illuminating the city's tranquil landscapes.
In Morioka, Japan, the likelihood of sunny weather during December stands at 27%, showing a slight dip compared to the more promising 33% in November. This trend is indicative of the colder months, where the chance of sunshine typically wanes, with December offering some of the lowest probabilities throughout the year. Interestingly, the sunshine chances generally follow a pattern of subtle fluctuations, peaking in early spring and declining through the summer and autumn months. As winter settles in, residents and visitors can expect shorter, cloudier days, yet December remains an opportunity for occasional sun breaks amid the winter chill.
In Morioka, Japan, December marks the return to shorter days, mirroring January's 9 hours of daylight. As the year progresses, daylight gradually increases from 9 hours in January to a peak of 14 hours in both May and June, creating a vibrant contrast to the winter months. This gradual ascent showcases the changing seasons, with longer days from April through August, before tapering off once again. The cycle of daylight serves as a reminder of nature's rhythm, highlighting how the days shorten dramatically after the summer solstice, culminating in the late autumn and winter months where December's daylight echoes its chilly January counterpart.
As December settles in Morioka, Japan, the wind begins to pick up, averaging 2.9 m/s (7 mph)—a slight increase from the preceding months. This gentle breeze marks a transition from the calmer, refreshing winds of late autumn, which lingered at 1.7 m/s in July to 2.5 m/s in November. The trend shows an upward shift as the year closes, reminiscent of the invigorating gusts that sweep through the region during the winter months. While the winds remain relatively gentle compared to springtime peaks, this subtle rise in speed prepares the landscape for the colder, more dynamic weather to come, creating a serene yet brisk atmosphere perfect for those exploring the winter charm of Morioka.
Weather in Morioka varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Morioka, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January in Morioka showcase a notable shift in temperatures and precipitation patterns. December typically experiences milder weather, with temperatures ranging from a minimum of -14°C (7°F) to a maximum of 12°C (54°F) and an average of -2°C (29°F). In contrast, January is significantly colder, with temperatures dipping as low as -20°C (-3°F) and averaging -5°C (24°F), while only reaching a maximum of 5°C (40°F). When it comes to precipitation, December sees more rainfall (89 mm or 3.5 in) over more days (17) compared to January's 65 mm (2.6 in) across 12 days. Both months maintain a consistent humidity level of 80%. For a detailed look at January weather specifics, you can check Morioka weather in January.
December and February exhibit notable differences in weather patterns, though both months experience cold temperatures typical of winter. December has a milder average temperature of -2°C (29°F), with a minimum of -14°C (7°F) and a maximum of 12°C (54°F). It also sees slightly higher precipitation at 89 mm (3.5 in) over 17 days, and a humidity level of 80%. In contrast, February tends to be even colder with an average temperature of -4°C (25°F), a minimum of -18°C (-1°F), and a maximum of 7°C (45°F). Precipitation is comparable, with 87 mm (3.4 in) over 16 days, and humidity remains slightly lower at 79%. For more insights on February weather, you can check Morioka weather in February.
In December, Morioka experiences cold temperatures with a minimum of -14°C (7°F) and an average of -2°C (29°F), while the maximum can reach 12°C (54°F). The month sees an average precipitation of 89 mm (3.5 inches) over 17 days, along with a high humidity level of 80%. In contrast, March brings slightly milder weather, with temperatures ranging from a minimum of -15°C (4°F) to an average of 1°C (35°F), peaking at 16°C (60°F). Precipitation increases to 103 mm (4.0 inches) over 14 days, and humidity drops a bit to 77%. For more details about weather patterns in March, check out Morioka weather in March.
December weather in Morioka is characterized by colder temperatures, with a minimum of -14°C (7°F) and an average around -2°C (29°F), while April brings a more moderate climate, with temperatures ranging from a minimum of -12°C (11°F) to a comfortable average of 6°C (44°F). Despite the chill, December sees less daily variability in temperature, peaking at 12°C (54°F), compared to April’s maximum of 22°C (72°F). Additionally, while both months experience precipitation, December records 89 mm (3.5 in) over 17 days, whereas April has a higher total of 125 mm (4.9 in) across 16 days, reflecting the transitional nature of spring. Humidity also shows a minor difference, with December at 80% and April slightly lower at 75%. For more details about April's weather patterns, visit Morioka weather in April.
December and May present contrasting weather conditions. In December, temperatures can plummet to a minimum of -14°C (7°F), with an average of -2°C (29°F) and a maximum of 12°C (54°F). This month is characterized by considerable precipitation, totaling 89 mm (3.5 in) across 17 days, while humidity levels hover at 80%. In sharp contrast, May sees a much milder climate, with temperatures ranging from a low of 1°C (34°F) to a warm maximum of 28°C (83°F), and an average of 13°C (56°F). Although May has slightly higher overall precipitation at 99 mm (3.9 in) over just 13 days, it maintains the same humidity level of 80%. For more detailed insights into May's weather, you can check Morioka weather in May.
December and June in Morioka present a striking contrast in weather patterns. In December, temperatures plunge significantly, with averages around -2°C (29°F) and a minimum of -14°C (7°F), creating a chilly atmosphere accompanied by high humidity of 80%. The month sees about 89 mm (3.5 in) of precipitation over 17 days, often in the form of snow, characteristic of winter.
In contrast, June brings milder and more pleasant conditions, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 28°C (83°F) and an average of 17°C (62°F). The humidity increases slightly to 87%, and while precipitation does rise to 111 mm (4.4 in), it occurs over fewer days—only 12. This makes June much more favorable for outdoor activities compared to the frigid December climate. For more details on June weather, you can check out Morioka weather in June.
December and July present stark contrasts in weather. December features much colder temperatures, with a minimum of -14°C (7°F) and an average of -2°C (29°F), while July enjoys a milder climate with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 32°C (89°F) and an average of 21°C (70°F). Precipitation also varies significantly, with December receiving 89 mm (3.5 in) over 17 days compared to July's 169 mm (6.7 in) over 16 days. Additionally, humidity is higher in July at 92% compared to December's 80%, making July feel more humid and warmer. For more detailed information about July weather, visit Morioka weather in July.
December and August present distinct contrasts in weather. December experiences a chilling average temperature of -2°C (29°F), with lows dipping to -14°C (7°F) and highs reaching up to 12°C (54°F). Precipitation is moderate, totaling 89 mm (3.5 in) over 17 days, accompanied by a fairly high humidity level of 80%. In contrast, August offers a much warmer climate, with an average temperature of 22°C (72°F), minimums of 9°C (48°F), and maximums soaring to 33°C (91°F). It sees increased precipitation of 146 mm (5.8 in) over 16 days and a slightly higher humidity level of 92%. These differences make December a season of cold and snow, while August is characterized by warmth and summer rain. For more details, visit Morioka weather in August.
December and September showcase stark contrasts in weather. December experiences much colder temperatures, with minimums dropping to -14°C (7°F) and average highs reaching only 12°C (54°F), highlighting a chilly winter atmosphere. In contrast, September enjoys milder conditions, with temperatures ranging from a minimum of 2°C (36°F) to a comfortable average of 17°C (64°F), peaking at a warm 30°C (87°F). While December sees about 89 mm (3.5 in) of precipitation over 17 days with an 80% humidity level, September has slightly higher precipitation at 112 mm (4.4 in) across 12 days, coupled with a similar humidity of 86%. For more detailed insights, visit Morioka weather in September.
December and October exhibit strikingly different weather patterns. In December, temperatures can plunge to a minimum of -14°C (7°F), while the average settles around -2°C (29°F) and can peak at a maximum of 12°C (54°F). Precipitation is relatively moderate at 89 mm (3.5 in) over 17 days, with humidity remaining high at 80%. In contrast, October enjoys milder conditions, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (78°F) and an average of 11°C (53°F). This month experiences more precipitation, totaling 144 mm (5.7 in) over 12 days, while humidity is slightly higher at 82%. For a more detailed look at October's weather, you can visit Morioka weather in October.
In comparing the weather between November and December, December experiences notably colder temperatures, with a minimum of -14°C (7°F) and an average of -2°C (29°F), compared to November’s milder minimum of -11°C (12°F) and average of 5°C (41°F). While both months see a fair amount of precipitation, December has 89 mm (3.5 in) over 17 days, surpassing November's 66 mm (2.6 in) across 11 days. Humidity levels are quite similar, with December at 80% and November at 79%. For more detailed information about November's weather, you can check Morioka weather in November.
As December settles in Morioka, the weather takes on a chilly character that starkly contrasts with the milder months preceding it. With maximum temperatures hovering around 12°C (54°F) and dipping to -14°C (7°F) at times, the month is marked by a notable drop in warmth. Humidity levels remain high at 80%, creating a crisp atmosphere often accompanied by 89 mm (3.5 in) of precipitation spread over 17 days—a far cry from the drier fall months. This blend of cold temperatures and frequent moisture not only transforms the landscape into a winter wonderland but also signifies the onset of the region's snowy season. For a deeper understanding of Morioka's climate patterns throughout the year, visit Morioka Climate.