Last updated: August 21, 2025
December in Kumamoto, Japan offers a dynamic climatic experience, with temperatures ranging from a brisk 0°C (32°F) to a pleasant maximum of 22°C (71°F). The average temperature hovers around 8°C (47°F), providing a crisp backdrop for winter activities. While the month sees precipitation totaling 84 mm (3.3 in) across about 9 days, the humidity remains relatively high at 79%, making the air feel cooler and more refreshing. As the year winds down, Kumamoto invites residents and visitors alike to enjoy the unique blend of winter chill and mild warmth characteristic of this charming region.
In December, Kumamoto, Japan experiences a notable shift as temperatures begin to dip, with minimums averaging around 0°C (32°F). This cool transition continues into the month, where daytime highs reach a comfortable 22°C (71°F), making it one of the milder winter months. The average temperature settles at approximately 8°C (47°F), providing a refreshing chill without the extreme cold seen in January. As the year winds down, the climate invites cozy attire and festive cheer, making December a delightful time to explore the region's winter offerings.
In Kumamoto, Japan, December brings a noticeable shift in precipitation patterns as the year draws to a close. With an average rainfall of 84 mm (3.3 in) spread over 9 days, December stands out with slightly elevated moisture compared to the preceding months, such as November, which recorded only 76 mm (3.0 in). This uptick hints at the onset of winter as the city transitions from the drier autumn months. Interestingly, while December's total is modest compared to the summer peak in July, which swells to a staggering 406 mm (16.0 in), it signifies a gradual return to wetter conditions. The balance of rain and clear days during this month invites cozy reflections on the year, as the vibrant, lush landscapes of Kumamoto are nurtured by the seasonal rains.
In Kumamoto, Japan, December marks a transition as the humidity begins to taper off slightly from the peak summer months. With a humidity level of 79%, December reflects a trend of descending moisture from the sweltering highs of 92% in July and 91% in August. This drop signals the onset of winter, contrasting the wetter months of late spring and early summer, where humidity often exceeds 80%. As the year closes, Kumamoto's air becomes more temperate, yet it still retains a notable level of moisture, capturing the essence of the region's climate.
In December, Kumamoto experiences a noticeable drop in the UV Index, reaching a level of 4, which falls into the moderate exposure category. This marks a shift from the previous months of extreme and very high UV levels, making it a more comfortable time for outdoor activities. With a burn time of 30 minutes, residents and visitors can enjoy the milder sun without the intense precautions required in the summer months. As the year wraps up, it's important to stay informed about the UV levels, ensuring safe sun exposure throughout the changing seasons. For more detailed information, visit Kumamoto UV Index.
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As December unfolds in Kumamoto, Japan, the city basks in a warm glow of 225 hours of sunshine, marking a slightly lower yet still delightful end to the year. While the month dips below the sunniest heights seen in the summer, it remains comfortably above the sunny offerings of January and November. Interestingly, Kumamoto experiences a gradual increase in daylight from the tail end of winter, with sunshine peaking in the vibrant month of August at an impressive 294 hours. This seasonal rhythm reveals a characteristic rise through spring and summer, before tapering off as the year draws to a close. Still, December’s sunny days provide a cheerful respite from the winter chill, leaving residents and visitors alike basking in the serene glow of Kumamoto's wintry charm.
In December, Kumamoto enjoys a 47% chance of sunny weather, standing as one of the more favorable months for sunshine in the latter part of the year. This reflects a slight increase from November's 50%, suggesting that as the year draws to a close, the skies may brighten just a bit more. Overall, December's sun chances are notably higher than the peak summer months, which see a significant drop with figures like 19% in July and 22% in June. As we observe trends across the months, December holds its own amidst the transitional weather patterns, often lending a welcome glimpse of sunlight during the chill of winter.
As December settles in Kumamoto, Japan, daylight spans a modest 10 hours, mirroring the duration seen in January and November. This winter month marks the culmination of a gradual decline in daylight that began after the long, sun-drenched days of summer, where June and July basked in an impressive 14 hours of sunlight. Transitioning through the year, March and April showcase a delightful increase to 12 hours, hinting at the vibrant blooms of spring ahead. However, as autumn descends, daylight once again recedes, creating a serene atmosphere where the 10-hour daylight of December invites cozy evenings and a reflective end to the year.
As December rolls into Kumamoto, Japan, the winds pick up slightly, averaging 2.6 m/s (6 mph), a gentle return to the values seen earlier in the year. Notably, December's winds mirror those of January and April, suggesting a consistency in the breezes that sweep through the region as winter approaches. Throughout the latter half of the year, winds remained relatively calm, especially in June when they dipped to 1.7 m/s (4 mph), indicating a languid summer. However, the slight uptick in December revitalizes the air, contrasting the subdued conditions of previous months, while also providing a refreshing reminder of seasonal changes as the year draws to a close.
Weather in Kumamoto varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kumamoto, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January show a notable shift in weather conditions. In December, temperatures range from a minimum of 0°C (32°F) to a maximum of 22°C (71°F), with an average of 8°C (47°F), while January sees a drop in minimum temperatures to -3°C (27°F) and a max of 17°C (63°F), resulting in a slightly cooler average of 6°C (44°F). Precipitation is also higher in December at 84 mm (3.3 in) over 9 days, compared to January's 63 mm (2.5 in) over 8 days. Additionally, December's humidity is marginally higher at 79%, while January sits at 75%. For more detailed insights, you can check the Kumamoto weather in January.
In December, the weather tends to be milder with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 22°C (71°F), while February experiences slightly cooler conditions with temperatures dropping to a minimum of -2°C (29°F) and a maximum of 19°C (66°F). Precipitation is more frequent in February, averaging 105 mm (4.2 in) over 11 days compared to December's 84 mm (3.3 in) over 9 days. Humidity is also higher in December at 79%, while February sees a lower humidity level of 71%. For more detailed information, check out this link: Kumamoto weather in February.
In December, the weather is typically cooler with average temperatures ranging from a minimum of 0°C (32°F) to a maximum of 22°C (71°F). The month sees a fair amount of precipitation at 84 mm (3.3 in) spread over 9 days, contributing to a higher humidity level of 79%.
In contrast, March brings slightly warmer temperatures, with averages between 1°C (34°F) and 22°C (72°F) and an average of 11°C (52°F). However, it experiences increased rainfall, totaling 143 mm (5.6 in) over 14 days, despite a lower humidity level of 71%. For more detailed insights into March weather, you can check out Kumamoto weather in March.
In December, the weather is relatively cooler, with average temperatures ranging from a chilly 0°C (32°F) to a pleasant 22°C (71°F). The month sees moderate precipitation of 84 mm (3.3 in) over about 9 days, along with a humidity level of 79%. In contrast, April brings a significant warming trend, with minimum temperatures of 3°C (38°F) and maximums reaching up to 26°C (79°F), resulting in an average temperature of 15°C (59°F). The rainfall increases to 135 mm (5.3 in), maintaining similar precipitation over 9 days, while humidity drops slightly to 78%. For more detailed insights into April weather, check out Kumamoto weather in April.
In December, the weather tends to be cooler with average temperatures ranging from a minimum of 0°C (32°F) to a maximum of 22°C (71°F), while the average temperature stands at 8°C (47°F). The month experiences about 84 mm (3.3 in) of precipitation over 9 days, coupled with a humidity level of 79%. In contrast, May brings warmer conditions, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 28°C (83°F) and an average of 19°C (67°F). However, May is significantly wetter, accumulating around 207 mm (8.1 in) of precipitation over 12 days, alongside a slightly higher humidity level of 84%. For a detailed look at the weather during this time, check out Kumamoto weather in May.
In December, the weather is generally cooler, with minimum temperatures around 0°C (32°F) and average highs reaching 22°C (71°F). Precipitation is moderate, totaling 84 mm (3.3 in) over approximately 9 days, accompanied by a humidity level of 79%. Conversely, June presents a much warmer climate, featuring a minimum temperature of 15°C (58°F) and average highs of 30°C (87°F). This month experiences significantly higher rainfall, accumulating 280 mm (11.0 in) across about 15 days, with humidity slightly elevated at 86%. For a detailed look at June weather conditions, you can explore Kumamoto weather in June.
The weather in December and July presents a stark contrast in Kumamoto. December experiences cooler temperatures, with a minimum of 0°C (32°F) and an average of 8°C (47°F), while July boasts much warmer conditions, with minimums around 18°C (64°F) and averages reaching 26°C (79°F). Precipitation is notably higher in July, totaling 406 mm (16.0 in) over 17 days compared to December’s 84 mm (3.3 in) over only 9 days, contributing to a more humid July with a humidity level of 92% versus December's 79%. For more detailed insights into July weather, visit Kumamoto weather in July.
When comparing the weather in December and August, it’s clear that the two months offer vastly different climates. December sees cooler temperatures, with a minimum of 0°C (32°F) and an average of 8°C (47°F), while August basks in warmth, ranging from a minimum of 19°C (67°F) to an average of 27°C (82°F). Precipitation levels also differ significantly; August experiences a higher rainfall of 238 mm (9.4 in) over 14 days, compared to December’s 84 mm (3.3 in) over just 9 days. Furthermore, humidity is notably higher in August at 91%, compared to December’s 79%. For a detailed look at weather specifics, you can explore Kumamoto weather in August.
In December, the weather tends to be much cooler than in September, with average temperatures ranging from a chilly 0°C (32°F) at night up to 22°C (71°F) during the day. In contrast, September showcases warmer temperatures, with minimums around 14°C (57°F) and daytime averages peaking at a more comfortable 24°C (76°F).
However, September experiences significantly higher precipitation, totaling 171 mm (6.7 in) over 14 days compared to December's 84 mm (3.3 in) across 9 days. The humidity level remains relatively high in both months, with December at 79% and September slightly higher at 84%. For more detailed information, you can visit Kumamoto weather in September.
In comparing the weather between December and October, December tends to be cooler with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 22°C (71°F), averaging around 8°C (47°F). October, on the other hand, is considerably warmer, featuring a minimum temperature of 9°C (49°F) and a maximum of 30°C (87°F), with an average of 19°C (67°F). Additionally, October experiences higher precipitation levels at 117 mm (4.6 in) compared to December's 84 mm (3.3 in), although both months share a similar number of rainy days, at 9. Humidity remains fairly consistent, with October at 83% and December slightly lower at 79%. For more details on October weather, you can check Kumamoto weather in October.
In comparing the weather between November and December, December experiences cooler temperatures, with a minimum of 0°C (32°F) and an average of 8°C (47°F), compared to November's milder minimum of 2°C (36°F) and average of 13°C (56°F). While both months have similar precipitation levels—with December receiving 84 mm (3.3 in) on 9 days and November seeing 76 mm (3.0 in) over the same number of days—December is slightly wetter. Humidity remains comparable, with December at 79% and November at 81%. For more detailed insights, you can explore Kumamoto weather in November.
In December, Kumamoto experiences a distinct shift as the year draws to a close, with cooler temperatures that contrast sharply with the warmth of the previous months. While daytime invites a pleasant maximum of 22°C, the evenings invite the chill, dropping to a cool average of 8°C, and even chilling to as low as 0°C at night. Adding to the season's character, December sees increased rainfall and higher humidity levels compared to earlier months, contributing to the cozy, winter ambiance. With about 84 mm of precipitation across approximately nine days, it’s a month that encourages both indoor gatherings and winter festivities. To better understand how December fits into the broader weather pattern, visit Kumamoto Climate for more insights.