Last updated: August 21, 2025
December in Suwa, Japan showcases a captivating blend of winter charm and chilly temperatures. With a maximum of 16°C (62°F) and a minimum that dips to -9°C (16°F), residents and visitors alike experience a brisk, invigorating climate. The average temperature hovers around 1°C (34°F), making warm attire a necessity for outdoor activities. A notable precipitation level of 84 mm (3.3 in) across 12 days means occasional snowfall, adding to the wintry allure. Coupled with a humidity level of 78%, December in Suwa invites you to embrace the season's frosty embrace while enjoying the serene beauty of this picturesque locale.
As December unfolds in Suwa, Japan, temperatures take a notable dip, painting a wintery landscape. With minimums reaching as low as -9°C (16°F) and an average of just 1°C (34°F), the season clearly embraces the chill of winter. Despite the stark decrease in temperatures compared to the milder autumn months, the maximum daytime temperatures can still reach up to 16°C (62°F), offering brief respites from the cold. This gradual transition from the fall's crisp air to the frosty embrace of winter reflects a consistent trend, where Suwa experiences a significant drop in temperature as the year comes to a close, inviting residents and visitors alike to enjoy the seasonal charm.
In December, Suwa, Japan experiences a notable transition in its precipitation patterns, receiving 84 mm (3.3 inches) of rain over 12 days. This amount marks a slight increase from November's 66 mm, suggesting a gradual resurgence in winter conditions. The consistency of precipitation days remains, with December matching January’s frequency of rainfall, further emphasizing the onset of the colder months. Notably, this increase contrasts sharply with the preliminary dry spell of autumn, showcasing December as a month where cold and moisture return to the region, setting the stage for the winter ahead.
As winter settles in Suwa, Japan, December brings a humidity level of 78%, slightly lower than the preceding month's 80%. This reduction marks a trend towards drier conditions as the year wraps up, following a peak in muggy summer months with July and August witnessing high humidity levels of 93% and 90%, respectively. Interestingly, after the humid highs of June and July, the gradual decline continues into the cooler months, suggesting a shift towards a more refreshing climate. This seasonal transition highlights the variation in Suwa's atmospheric conditions throughout the year, where humidity ebbs and flows, creating a unique tapestry of weather patterns that defines its winter charm.
As the year comes to a close, December in Suwa, Japan, sees a UV Index of 4, categorized as moderate, with a burn time of 30 minutes. This follows a trend where the UV Index gradually peaked during the summer months, reaching an extreme level of 12 in July and August, and then steadily declined as autumn advanced. Compared to the earlier months, December’s index is a welcome drop, reminiscent of January’s similar reading. With protective measures like sunscreen becoming less critical, it’s a time for residents and visitors to enjoy the outdoors with manageable sun exposure. For a detailed overview of the UV Index throughout the year, check out Suwa UV Index.
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In Suwa, Japan, December shines with a commendable 227 hours of sunlight, capping off the year with a blend of brightness amidst the cool winter air. While this month sees slightly less sun compared to the vibrant spring and summer months, it's notable that Suwa's winter days still offer a respectable amount of daylight. Following the trend from earlier months, December's sunshine totals show a gradual decrease from the peak in May, which boasts an impressive 292 hours. The transition from the longer days of summer to the shorter winter hours reflects a natural ebb and flow in sunlight, allowing residents to embrace both the winter chill and the warmth of daylight that lingers through the season.
In Suwa, Japan, December brings a moderate chance of sunny weather, with 42% likelihood of clear skies. This slight dip from the previous months, particularly November's 46%, indicates the onset of winter, yet still holds promise for sunlit days. Notably, December's sunshine probability remains higher than the summer months, such as June and August, which hover around 21% and 24% respectively. As the year winds down, the weather pattern in Suwa transitions, reflecting the seasonal shift while maintaining a respectable chance for those seeking a bit of winter sunshine.
As the seasons change in Suwa, Japan, so does the daylight duration, reflecting the rhythm of nature. December marks a return to shorter days, with daylight lasting around 9 hours—a slight drop that mirrors the earlier winter months of January and November. In contrast, March through May showcases a gradual increase in daylight, peaking in June and July when the sun graces the region with 14 hours of light—ideal for outdoor activities. As summer wanes into fall, daylight gently recedes, transitioning from 14 hours in August to 10 hours in November. This cyclical pattern of daylight highlights the beauty of Suwa's seasons, where each month brings a unique charm tied to its length of daylight.
As December settles over Suwa, Japan, the average wind speed gently wanes to 1.9 m/s (4 mph), reflecting a slight increase from November’s 1.8 m/s (4 mph). This seasonal transition marks a notable contrast from the summer months, where the wind barely stirred at its lowest of 1.3 m/s (3 mph) in both July and August. Overall, the winter months in Suwa show a modest rise in wind currents, with December's breezes signifying a lingering warmth before the chill of winter fully takes hold. The calming winds provide a serene backdrop to the breathtaking winter landscapes, inviting both reflection and admiration as the year draws to a close.
Weather in Suwa varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Suwa, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January exhibit notable differences in weather patterns. December experiences a milder climate with average temperatures around 1°C (34°F) and a maximum reaching 16°C (62°F). In contrast, January sees a more pronounced chill, particularly with a minimum temperature dropping to -18°C (0°F) and an average of -2°C (29°F). While both months receive precipitation on approximately 12 days, December records slightly higher rainfall at 84 mm (3.3 in) compared to January's 75 mm (3.0 in). Humidity levels also remain relatively high in both months, with December at 78% and January at 76%. For more specifics on January weather, you can visit Suwa weather in January.
In December, the weather is generally milder with an average temperature of 1°C (34°F) and a maximum reach of 16°C (62°F), making it more comfortable compared to February, which has a colder average of -1°C (30°F) and a minimum temperature dipping down to -18°C (0°F). Precipitation levels are quite similar in both months, with December receiving 84 mm (3.3 in) over 12 days, while February sees slightly less at 80 mm (3.2 in) but over 10 days. Humidity is also a bit higher in December at 78%, compared to February's 74%. For those interested in more specific details, check Suwa weather in February.
In December, temperatures in Suwa range from a chilly minimum of -9°C (16°F) to a maximum of 16°C (62°F), with an average temperature around 1°C (34°F). This month experiences around 84 mm (3.3 in) of precipitation over 12 days, and the humidity is relatively high at 78%. In contrast, March sees slightly milder temperatures, with a minimum of -7°C (19°F) and a maximum reaching up to 20°C (68°F), averaging about 4°C (40°F). Precipitation increases to 141 mm (5.6 in), while the number of rainy days remains the same at 12, and humidity decreases to 70%. For more detailed information, you can check Suwa weather in March.
December and April present quite a contrast in weather patterns. In December, temperatures typically range from a frigid minimum of -9°C (16°F) to a mild maximum of 16°C (62°F), with an average temperature of around 1°C (34°F). The month sees about 84 mm (3.3 in) of precipitation over approximately 12 days, contributing to a relatively high humidity level of 78%.
In comparison, April experiences noticeably warmer conditions, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 26°C (78°F) and an average temperature of 9°C (48°F). This month also receives more precipitation, totaling around 143 mm (5.6 in) across 13 days, but maintains a slightly lower humidity of 74%. Overall, April ushers in a spring-like warmth that starkly contrasts with December's chill. For more detailed weather information, check out Suwa weather in April.
December and May present stark contrasts in weather conditions. In December, temperatures can dip as low as -9°C (16°F), with an average hovering around 1°C (34°F), and occasional highs reaching 16°C (62°F). The month sees about 84 mm (3.3 in) of precipitation over 12 days, accompanied by a humidity level of 78%. In comparison, May boasts much milder temperatures, with a minimum of -1°C (31°F) and an average rise to 15°C (58°F), peaking at 29°C (85°F). Although it’s wetter, with 155 mm (6.1 in) of rain spread across the same number of days, the humidity increases slightly to 81%. For more insights on the conditions in May, you can check out Suwa weather in May.
December and June present strikingly different weather conditions. In December, temperatures typically range from a chilly -9°C (16°F) at night to a maximum of 16°C (62°F) during the day, with an average of just 1°C (34°F). The month sees about 84 mm (3.3 in) of precipitation over approximately 12 days, and the humidity levels hover around 78%. In contrast, June experiences much milder temperatures, with nighttime lows of 5°C (41°F) and daytime highs reaching up to 29°C (84°F), averaging 18°C (65°F). The precipitation increases significantly to 149 mm (5.8 in) over 14 days, and humidity rises to 88%. For a closer look at conditions in June, you can find more details here: Suwa weather in June.
December and July present starkly contrasting weather patterns. In December, temperatures can drop as low as -9°C (16°F) and generally hover around 1°C (34°F), with a maximum of 16°C (62°F). The month is characterized by relatively low precipitation, totaling 84 mm (3.3 in) over about 12 days, with humidity levels at 78%.
In contrast, July experiences much warmer temperatures, with a minimum of 14°C (58°F) and an average of 22°C (72°F), peaking at 33°C (91°F). This month is also significantly wetter, with precipitation reaching 289 mm (11.4 in) spread over 19 days, accompanied by higher humidity at 93%.
For more detailed information, you can check Suwa weather in July.
In December, the weather is significantly colder with temperatures ranging from a low of -9°C (16°F) to a high of 16°C (62°F), averaging around 1°C (34°F). This month experiences about 84 mm (3.3 in) of precipitation spread over 12 days, with a humidity level of 78%. In contrast, August brings much warmer conditions, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 33°C (92°F), and an average temperature of 23°C (74°F). It is also wetter in August, receiving 151 mm (5.9 in) of rain over 16 days, accompanied by high humidity at 90%. For more detailed information on August weather, see Suwa weather in August.
In comparing the weather patterns of December and September, notable differences emerge. December experiences significantly lower temperatures, with a minimum of -9°C (16°F) and an average of just 1°C (34°F), whereas September boasts a milder climate, featuring a minimum of 6°C (42°F) and an average temperature of 19°C (66°F). Precipitation also varies, with December receiving 84 mm (3.3 in) over 12 days, while September sees a higher total of 171 mm (6.7 in) across 16 days, indicating September's more frequent rain. Humidity levels are quite similar, hovering around 78% in December and 86% in September. For more detailed insights on September weather, visit Suwa weather in September.
When comparing the weather in December and October, notable differences emerge. In December, temperatures range from a chilly minimum of -9°C (16°F) to a maximum of 16°C (62°F), with an average of only 1°C (34°F). In contrast, October boasts a milder climate with temperatures ranging from a minimum of 0°C (33°F) to a pleasant maximum of 26°C (79°F), averaging 13°C (56°F). Precipitation levels also vary, as December receives 84 mm (3.3 in) over 12 days, while October experiences significantly higher rainfall at 237 mm (9.3 in) over 16 days. Additionally, humidity is slightly higher in October at 83%, compared to December's 78%. For more detailed information, check out Suwa weather in October.
In comparing the weather between November and December, one can observe a notable shift in temperatures and precipitation. December experiences a wider temperature range, with minimums dropping to -9°C (16°F) and maximums reaching up to 16°C (62°F), whereas November's temperatures range from a minimum of -4°C (25°F) to a maximum of 18°C (65°F). Additionally, December is slightly wetter, with 84 mm (3.3 in) of precipitation over 12 days, compared to November's 66 mm (2.6 in) over 10 days. Humidity levels are also slightly lower in December at 78% compared to November's 80%. For more detailed information on November weather, you can visit this link: Suwa weather in November.
As December settles in Suwa, the weather takes a notable turn, ushering in colder temperatures that contrast sharply with the milder months preceding it. With average temperatures hovering around 1°C (34°F) and occasional drops to a brisk -9°C (16°F), residents experience a significant chill, complemented by high humidity levels of 78%. The month is characterized by frequent precipitation over approximately 12 days, totaling around 84 mm (3.3 in), making it one of the wetter periods of the year. As winter approaches, Suwa transforms into a picturesque landscape, reflecting a seasonal shift that fosters a unique vibe and invites locals and visitors alike to embrace the beauty of winter. For more detailed insights into Suwa's weather trends, visit Suwa Climate.