Last updated: August 21, 2025
December in Minami-Soma, Japan ushers in a mix of cool temperatures and frequent precipitation, creating a uniquely vibrant winter atmosphere. With a maximum temperature reaching 17°C (63°F) and a minimum dipping to 0°C (32°F), the average temperature settles around a crisp 7°C (45°F). The month is characterized by 77% humidity, contributing to a feel of freshness in the air. Additionally, residents can expect about 60 mm (2.4 in) of rainfall over 11 days, making it essential to prepare for wet weather while enjoying the season's charm.
In December, Minami-Soma experiences the transition into winter, with temperatures starting to dip noticeably compared to the milder months preceding it. The month opens with a minimum temperature of 0°C (32°F), indicating the onset of frost while the average hovers around 7°C (45°F), bringing a crispness to the air. The daytime highs can reach up to 17°C (63°F), offering a contrast to the cooler nights. This month's temperatures mark a distinct shift from November's relatively warmer readings, setting the stage for January's chill. Overall, December in Minami-Soma showcases a gentle descent into winter, inviting both the beauty of seasonal change and the charm of a cozy atmosphere.
In December, Minami-Soma experiences a moderate rainfall, with 60 mm (2.4 in) of precipitation falling over approximately 11 days. This month marks a notable increase from the preceding November, which had only 44 mm (1.7 in) across 6 days. December's precipitation helps to bridge the drier late fall months and the wetter spring season ahead. Typically, one can expect a more consistent drumming of raindrops in December compared to January's drier spells, hinting that the cold season is settling in. Overall, as the year winds down, Minami-Soma showcases a transition into a wetter climate, preparing for the upcoming months that often bring heavier rainfall.
In December, Minami-Soma experiences a humidity level of 77%, marking a slight increase from the previous month. Throughout the year, humidity levels showcase a distinct seasonal pattern, peaking in the summer months of July and August with highs of 92% and 90%, respectively. As the year transitions from warm to cool, humidity gradually decreases, hitting its lowest in March at 72%, before climbing again toward the year's end. This trend reflects a typical humid climate, where cooler months like December retain a considerable moisture level, yet still fall short of the summer peak. Overall, December's humidity aligns seamlessly within this yearly rhythm, maintaining the characteristic dampness of the region.
In December, Minami-Soma experiences a UV Index of 3, placing it in the moderate exposure category, with a burn time of 30 minutes. This trend reflects a calming shift after the intense summer months, where July and August reach a peak UV Index of 11—defined as extreme, requiring caution with only 10 minutes of sun exposure recommended. As the year transitions, the UV Index steadily decreases from the high levels seen in spring and summer, with April and May presenting a very high risk at 9 and 10 respectively. By December, the moderation in UV intensity underscores a welcome reprieve as residents can enjoy outdoor activities with relatively lower risk. For more insights on UV exposure trends throughout the year, check out the detailed Minami-Soma UV Index.
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In Minami-Soma, Japan, December brings a gentle transition as the year draws to a close, showcasing a delightfully moderate 212 hours of sunshine. This marks a slight decrease from the vibrant November peak of 226 hours, yet it remains consistently bright compared to the winter months of January and February, which see only 176 and 224 hours respectively. As the days shorten, December's sunlight is a comforting reminder that even in winter, the region enjoys a generous share of daylight. The overall trend throughout the year illustrates a gradual increase in sunshine from the early months, peaking in the vibrant spring and early summer, before tapering off in the autumn and winter. Thus, December shines brightly as a month of reflection, underlining the beauty of nature as it prepares for a new year.
In Minami-Soma, Japan, December showcases a 54% chance of sunny weather, marking a notable trend as the year winds down. As temperatures drop, residents can look forward to a mix of sunny and overcast days, especially after a relatively bright November, which boasted a 63% sunny probability. This slight decline in sunshine from the previous month aligns with a broader pattern, as the year transitions from the warm summer months—known for their lower sunshine chances in June and July—to the cooler late fall and winter. Overall, while December may not promise abundant sunshine, it offers a more favorable outlook compared to many preceding months, suggesting opportunities to enjoy some daylight amidst the chill.
In Minami-Soma, Japan, the December daylight duration mirrors the city's winter chill, featuring just 9 hours of sunlight. As the year unfolds, daylight gradually increases from a modest 9 hours in January to a peak of 14 hours during June through July. The transition into autumn brings a gentle decline, with daylight dwindling to 10 hours in November before hitting its annual low in December. This cyclical rhythm not only highlights the stark contrasts between the seasons but also underscores the gradual shift towards longer days as the year progresses, offering a glimpse of the vibrant light that awaits in spring and summer.
As December ushers in cooler temperatures in Minami-Soma, the average wind speed picks up to 5.4 m/s (12 mph), making it one of the more blustery months of the year. This noticeable increase contrasts with the gentler breezes of the summer months, where speeds dipped as low as 3.3 m/s (7 mph) in July. The trend reveals a gradual escalation in wind speed as winter approaches, with a steady increase beginning in late fall. Transitioning from November's 4.0 m/s (9 mph), December prepares the region for the harsher elements of winter, inviting a refreshing yet invigorating breeze that adds to the charm of the season.
Weather in Minami-Soma varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Minami-Soma, focusing on differences in temperature, rainfall, humidity, and UV levels.
December weather tends to be milder compared to January, with average temperatures ranging from a minimum of 0°C (32°F) to a maximum of 17°C (63°F). In contrast, January experiences cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 13°C (56°F). Both months have relatively similar precipitation levels, but December sees slightly more rain at 60 mm (2.4 in) over 11 days, while January receives 52 mm (2.1 in) over 8 days. The humidity remains quite close between the two months, with December at 77% and January slightly lower at 76%. For a detailed look at the weather specifics in January, you can visit Minami-Soma weather in January.
December and February both experience mild winter temperatures, but February tends to be slightly cooler overall. In December, temperatures range from a minimum of 0°C (32°F) to a maximum of 17°C (63°F), with an average of 7°C (45°F) and relatively high humidity at 77%. The month sees about 60 mm (2.4 in) of precipitation over 11 days. In contrast, February's temperatures show a slight drop, with a minimum of -1°C (31°F) and a similar maximum of 18°C (64°F), averaging around 5°C (41°F). Precipitation decreases to 41 mm (1.6 in) over just 7 days, with humidity at a lower 75%. For more details, check out Minami-Soma weather in February.
When comparing December and March weather, both months experience similar minimum temperatures, hovering around 0°C (32°F to 33°F). However, March tends to be slightly warmer overall, with an average temperature of 7°C (46°F) compared to December's 7°C (45°F), and a maximum temperature that peaks at 18°C (64°F) versus December's 17°C (63°F). Precipitation is notably higher in March, with 117 mm (4.6 in) compared to December's 60 mm (2.4 in), despite having only 9 days of precipitation compared to December's 11. Furthermore, December's humidity is a bit higher at 77%, while March experiences a comfortable 72%. For a more detailed look at March weather, you can check out Minami-Soma weather in March.
When comparing the weather in December and April, we see a clear transition in temperature and precipitation patterns. December typically has a minimum temperature of 0°C (32°F) and an average of 7°C (45°F), while April sees slightly higher temperatures, with a minimum of 2°C (37°F) and an average of 11°C (51°F). The maximum temperature also rises from 17°C (63°F) in December to 20°C (69°F) in April, indicating a warming trend.
In terms of precipitation, April is noticeably wetter, receiving 115 mm (4.5 in) of rain compared to December's 60 mm (2.4 in), though both months experience precipitation on about 11 days. Humidity levels are relatively high in both months, with December at 77% and April slightly lower at 73%. For more specific weather details, check out Minami-Soma weather in April.
December and May present contrasting weather patterns. In December, temperatures range from a chilly minimum of 0°C (32°F) to a comfortable maximum of 17°C (63°F), with an average of 7°C (45°F). The month experiences about 60 mm (2.4 in) of precipitation over 11 days, accompanied by a humidity level of 77%. In contrast, May sees warmer temperatures, with a minimum of 7°C (45°F) and a maximum reaching up to 25°C (77°F), averaging around 16°C (60°F). Although May is wetter, with 119 mm (4.7 in) of rainfall across 12 days, the humidity increases slightly to 80%. For more information, refer to Minami-Soma weather in May.
In December, the weather is notably cooler, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 17°C (63°F) and an average temperature of 7°C (45°F). This month also experiences moderate precipitation, with about 60 mm (2.4 in) falling over 11 days, accompanied by a humidity level of 77%. In contrast, June brings warmer temperatures, with a minimum of 13°C (56°F), an average of 19°C (66°F), and a maximum reaching 27°C (80°F). Although June sees a higher total precipitation of 105 mm (4.1 in) spread over 12 days, the humidity rises to 87%, creating a noticeably more humid atmosphere. For more details, you can visit Minami-Soma weather in June.
The weather in December and July presents a stark contrast in Minami-Soma. December experiences cooler temperatures, ranging from a minimum of 0°C (32°F) to a maximum of 17°C (63°F), with an average of 7°C (45°F). This month also sees a significant amount of humidity at 77% and receives about 60 mm (2.4 in) of precipitation over 11 days. In contrast, July boasts much warmer temperatures, with minimums of 17°C (64°F), average highs around 23°C (73°F), and peaks reaching 30°C (86°F). However, it is also significantly wetter, with 239 mm (9.4 in) of rain falling over 18 days and humidity levels increasing to 92%. For a detailed look at July weather specifically, visit Minami-Soma weather in July.
When comparing the weather between December and August, one can see a stark contrast. December typically sees cooler temperatures, with a minimum of 0°C (32°F) and an average of 7°C (45°F), while August boasts much warmer conditions, featuring a minimum of 20°C (67°F) and an average of 25°C (77°F). Precipitation levels also differ significantly; December experiences around 60 mm (2.4 in) over 11 days, whereas August is much wetter, with 158 mm (6.2 in) falling over 15 days. Additionally, humidity is notably higher in August at 90%, compared to December's 77%, which contributes to a more tropical feel during late summer. For more details, you can refer to Minami-Soma weather in August.
In comparing the weather between December and September, it's clear that these months offer distinctly different climates. December experiences cooler temperatures, with a minimum of 0°C (32°F) and an average around 7°C (45°F), peaking at 17°C (63°F). This month sees around 60 mm (2.4 in) of precipitation spread over 11 days, and humidity levels around 77%. In contrast, September boasts much warmer temperatures, starting at a minimum of 16°C (62°F) and averaging 22°C (72°F), reaching highs of 30°C (86°F). Precipitation is significantly higher in September at 191 mm (7.5 in) over 15 days, accompanied by a humidity level of 84%. For a closer look at September's weather specifics, check out Minami-Soma weather in September.
In comparing the weather of December to October, December experiences significantly colder temperatures, with average highs around 7°C (45°F) compared to October's warmer average of 18°C (64°F). While December has a minimum temperature that can drop to 0°C (32°F), October remains much milder, starting at a minimum of 11°C (52°F). Precipitation in October is notably higher, totaling 257 mm (10.1 in) over 12 days, whereas December sees only 60 mm (2.4 in) across 11 days. Humidity levels are also similar, with December at 77% and October slightly higher at 80%. For more details on October weather, visit Minami-Soma weather in October.
In comparing the weather between November and December, December tends to be cooler, with average temperatures ranging from a minimum of 0°C (32°F) to a maximum of 17°C (63°F), while November enjoys milder temperatures, with a minimum of 4°C (39°F) and a maximum of 20°C (69°F). Additionally, December experiences more precipitation, totaling 60 mm (2.4 in) over 11 days, compared to November's 44 mm (1.7 in) across just 6 days. Humidity levels remain consistent at 77% for both months, but the overall chill and increased rainfall in December indicate a notable shift towards winter conditions. For further insights on the weather in November, you can check Minami-Soma weather in November.
As December unfolds in Minami-Soma, the transition to winter becomes evident with cooler temperatures and increased humidity levels. The average chill makes cozy clothing a must, contrasting sharply from the milder days of autumn. December also brings a notable uptick in precipitation, with frequent rain marking many days of the month, which contributes to a damp ambiance. Unlike the warmer months that embrace sunny skies, December sets the stage for a more subdued climate. Visitors can expect fewer sunny days and a lush landscape, perfect for cozy indoor activities or serene winter strolls. To dive deeper into the seasonal changes, explore more at Minami-Soma Climate.