Last updated: August 21, 2025
December in Nanao, Japan is characterized by a mild yet variable climate. With maximum temperatures peaking at 21°C (71°F) and dropping to a chilly minimum of -2°C (28°F), residents experience a broad temperature range throughout the month. The average temperature hovers around 7°C (45°F), providing a crisp atmosphere ideal for winter activities. This month, Nanao sees 153 mm (6.0 in) of precipitation spread over 22 days, contributing to its distinctly humid environment, which measures around 79%. As winter descends, the combination of cool temperatures and frequent rainfall adds a unique charm to this coastal city.
As December descends upon Nanao, Japan, temperatures begin to reflect the subtle embrace of winter. The month opens with a minimum of -2°C (28°F), hinting at the frosty nights to come, while the average temperature rests at a cool 7°C (45°F). Days can still warm up nicely, with a maximum reaching 21°C (71°F), offering a brief reprieve from the chill. This month marks a shift from the milder conditions of autumn; November's warmer averages make way for December's crispness. As the year draws to a close, the climate in Nanao presents a refreshing blend of cold nights and mild days, perfect for enjoying festive seasonal activities against a picturesque winter backdrop.
In December, Nanao, Japan, experiences a notable increase in precipitation, receiving 153 mm (6.0 in) of rainfall over 22 days. This uptick marks a shift from the more moderate rains of November, which recorded 107 mm in just 13 days. The month’s frequent rainfall not only adds to the region’s lush landscapes but also aligns with the overall trend of increased precipitation as winter sets in. As temperatures drop, December’s consistent showers serve as a precursor to January’s peak, where average precipitation remains high at 115 mm. This pattern highlights Nanao's transition into the wet winter season, ensuring the area's natural beauty thrives even in the colder months.
In Nanao, Japan, December brings a slight relief from the higher humidity levels of the preceding months, settling at 79%. This marks a gradual decrease from the peak of 93% in July, showcasing a shift as the year draws to a close. Interestingly, while December is noticeably less humid than the summer months, it still retains a certain level of humidity that is higher than the winter average in many regions. The humidity patterns throughout the year reveal a clear trend: the hottest months of June through August tend to be the most humid, while the transition into winter months like November and December sees a slight decline. This marked reduction from the summer highs hints at the changing season, while still reflecting Nanao's overall moist coastal climate.
As December arrives in Nanao, Japan, the UV Index dips back to 3, placing it in the moderate exposure category, with a burn time of 30 minutes. This marks a notable decrease from the extreme indexes observed in the summer months of June through August, where the UV Index reached a high of 11. The trend throughout the year illustrates a clear seasonal shift, peaking in the spring and summer before gradually declining to safer levels in the winter months. This cyclical variation serves as a reminder to stay informed about UV radiation and its effects. For more detailed information on daily UV levels, visit Nanao UV Index.
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December in Nanao, Japan, wraps up the year with an inviting 195 hours of sunshine, offering a gentle glow as winter sets in. This month continues the trend of decreasing sunlight, following the peak of 311 hours in August, the sun's most generous offering. Each month brings a gradual decline as the coolness of winter approaches, with December's sunshine notably lower than the vibrant 309 hours in May. Yet, despite the decrease, December still shines brighter than January's shorter days, suggesting a lingering warmth before the depths of winter envelop Nanao. As the year ends, even the diminished light of December holds its own charm, casting a pleasant hue over the tranquil landscape.
In Nanao, Japan, December marks a noticeable dip in the likelihood of sunny weather, with the chance of basking in sunlight falling to 29%. This trend is part of a broader seasonal pattern where the sun's presence diminishes as winter approaches. While October and November offer more promising chances of clear skies at 45% and 44%, respectively, December's weather tends to lean towards cloudier days. Interestingly, this is a stark contrast to the sunnier months of spring and early summer, where sunlight reigns supreme, particularly in April at 47%. Thus, as the year wraps up, Nanao experiences a shift towards more overcast conditions, encouraging locals and visitors to embrace the cozy charm of winter rather than expect vibrant sunshine.
As December arrives in Nanao, Japan, daylight begins to wane, offering only 9 hours of sunlight—a notable drop echoing the trends of previous months. The year kicks off with 9 hours in January, gradually increasing to a peak of 14 hours in both May and June, showcasing the invigorating embrace of spring and summer. However, as autumn settles in, the sunlit hours gradually diminish, reflecting nature's cyclical patterns. By November, the daylight shortens to 10 hours, prompting a return to the cozy, twilight hours of December. This rhythmic ebb and flow of daylight not only shapes the landscape but also influences the daily rhythms of life in this charming coastal town.
As December settles in Nanao, Japan, the winds begin to pick up, averaging 4.1 m/s (9 mph)—a refreshing change from the calmer summer months, where wind speeds lingered around 2.1 to 2.5 m/s (5 to 6 mph). This month marks a slight rise compared to November's winds, which averaged 3.6 m/s (8 mph), hinting at a transition toward the bolder breezes of winter. Interestingly, the spring and early summer months prior saw even steadier patterns of around 3.5 to 3.7 m/s (8 mph), showcasing a notable dip during the humid months of June to October. As the year winds down, December’s brisk gusts invigorate the landscape, setting the stage for the cooler days ahead.
Weather in Nanao varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Nanao, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is generally milder, with average temperatures ranging from a minimum of -2°C (28°F) to a maximum of 21°C (71°F). During this month, there is significant rainfall, accumulating to 153 mm (6.0 in) over about 22 days, accompanied by a humidity level of 79%. In contrast, January tends to be cooler, with temperatures dropping to a minimum of -4°C (24°F) and a maximum of 16°C (60°F), leading to an average of 5°C (41°F). Precipitation is also lower at 115 mm (4.5 in) over 19 days, while humidity remains slightly higher at 80%. For more detailed insights into January weather, you can visit Nanao weather in January.
December and February present somewhat similar yet distinct weather patterns. In December, temperatures range from a minimum of -2°C (28°F) to a maximum of 21°C (71°F), with an average of 7°C (45°F). The month experiences higher precipitation levels of 153 mm (6.0 in) over 22 days, accompanied by a relatively high humidity of 79%. In contrast, February sees slightly cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 18°C (65°F), yielding an average of 5°C (41°F). Precipitation decreases to 106 mm (4.2 in) across 16 days, with humidity remaining comparable at 78%. For a closer look at February weather specifics, you can check Nanao weather in February.
December and March exhibit distinct weather patterns, reflecting the transition from winter to spring. In December, temperatures range from a chilly -2°C (28°F) to a pleasant 21°C (71°F), with an average of 7°C (45°F). The month sees considerable precipitation, totaling 153 mm (6.0 in) spread over 22 days, alongside a relatively high humidity level of 79%. Conversely, March offers slightly milder conditions, with temperatures varying from a minimum of 1°C (34°F) to a maximum of 22°C (72°F), and an average of 9°C (48°F). Precipitation decreases to 126 mm (5.0 in) over 15 days, and humidity dips slightly to 76%. For a more detailed look at the weather in March, you can visit Nanao weather in March.
When comparing the weather in December and April, it's clear that both months exhibit distinct characteristics. December experiences lower temperatures with a minimum of -2°C (28°F) and an average of 7°C (45°F), while April sees a rise in temperatures, starting at a minimum of 2°C (35°F) and averaging 13°C (55°F). Precipitation levels are somewhat similar, with December receiving 153 mm (6.0 in) over 22 days, compared to April's 144 mm (5.7 in) over just 13 days. Humidity levels remain relatively close, with December at 79% and April slightly lower at 77%. For more insights on weather in April, you can explore Nanao weather in April.
December and May present contrasting weather experiences. December typically features cooler temperatures, with an average around 7°C (45°F) and occasional dips to -2°C (28°F). This month also sees considerable precipitation, averaging 153 mm (6.0 in) over 22 days, contributing to a humidity level of 79%. In contrast, May brings milder and warmer conditions, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 30°C (87°F), resulting in a pleasant average of 18°C (66°F). Precipitation in May is lighter, totaling 103 mm (4.0 in) over just 12 days, while humidity remains relatively high at 85%. For more details on the weather during this month, you can visit Nanao weather in May.
December and June present distinctly different weather patterns. In December, temperatures range from a chilly -2°C (28°F) to a mild 21°C (71°F), with an average of 7°C (45°F). The month experiences significant precipitation, totaling 153 mm (6.0 in) over 22 days, and maintains a relative humidity of 79%. In contrast, June is warmer, with temperatures starting at a minimum of 13°C (56°F) and peaking at 32°C (90°F), resulting in an average of 22°C (72°F). Although it has slightly less precipitation at 141 mm (5.6 in) over just 11 days, humidity is higher, reaching 89%. For more insights into June's weather specifics, check out Nanao weather in June.
December and July present stark contrasts in weather patterns. In December, temperatures range from a chilly -2°C (28°F) at night to a mild 21°C (71°F) during the day, with an average of 7°C (45°F). The month sees about 153 mm (6.0 in) of precipitation over 22 days, with a humidity level of 79%. In contrast, July boasts a much warmer climate, with temperatures starting at a minimum of 21°C (69°F) and soaring to a maximum of 37°C (99°F), averaging 27°C (80°F). It experiences significantly higher precipitation, totaling 295 mm (11.6 in) across 19 days, accompanied by a humidity level of 93%. For a more detailed look at July weather, visit Nanao weather in July.
In comparing the weather of December and August, it's clear that these months represent the extremes of the seasonal spectrum. December experiences much cooler temperatures, with a minimum of -2°C (28°F) and an average of 7°C (45°F), while August boasts significantly higher temperatures, with a minimum of 20°C (69°F) and an average of 29°C (84°F).
Additionally, December sees more precipitation days, totaling 22 days and 153 mm (6.0 in) of rainfall, although the humidity is slightly lower at 79%. In contrast, August has an even higher precipitation total of 228 mm (9.0 in) over just 16 days, accompanied by a higher humidity level of 92%. For more detailed information on the weather in August, please visit Nanao weather in August.
December and September present starkly contrasting weather patterns. In December, temperatures range from a chilly -2°C (28°F) at their lowest to a mild 21°C (71°F) at their highest, with an average of 7°C (45°F). The month sees a significant amount of rainfall, totaling 153 mm (6.0 in) over 22 days, coupled with a humidity level of 79%. In contrast, September boasts much warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 38°C (100°F), averaging around 24°C (76°F). Despite having fewer rainy days, September experiences higher overall precipitation at 222 mm (8.7 in) and slightly elevated humidity at 84%. For more detailed insights, you can check Nanao weather in September.
In comparing the weather of December and October, it’s clear that October enjoys milder temperatures, with an average of 19°C (66°F) and highs reaching up to 32°C (89°F), while December sees much cooler conditions, averaging only 7°C (45°F) and peaking at 21°C (71°F). Precipitation levels are somewhat comparable, with December receiving 153 mm (6.0 in) over 22 days, slightly less than October's 160 mm (6.3 in) spread across 13 days. Humidity levels remain high in both months, at 79% for December and 81% for October, contributing to a damp feel in the air. For a closer look at what to expect during October, you can visit Nanao weather in October.
In comparing the weather of December to that of November, we notice a shift towards cooler temperatures and increased precipitation. December records a minimum temperature of -2°C (28°F), contrasting with November's milder minimum of 3°C (37°F). The average temperature in December drops to 7°C (45°F), while November maintains a warmer average of 13°C (55°F). Additionally, December experiences more rainfall, accumulating 153 mm (6.0 in) over 22 days, compared to November's 107 mm (4.2 in) over just 13 days. Humidity levels are slightly higher in December at 79%, compared to November's 77%. For more detailed information on November weather, you can refer to Nanao weather in November.
As December arrives in Nanao, the weather transforms significantly, bringing a chill that contrasts with the more temperate months preceding it. The cool average temperatures signal the onset of winter, and the increased precipitation, spanning over half the month, creates a damp atmosphere, often amplified by the high humidity levels. Unlike the warm summer months, which boast clear skies and dry conditions, December’s climate invites a cozy indoor ambiance. Whether it's the crisp air or the soothing backdrop of gentle rain, December paints Nanao in hues of serenity and reflection. For a more detailed look at how this month fits within the broader climate trends, check out Nanao Climate.