Last updated: August 21, 2025
Experience the charming winter of Hatsukaichi, Japan, in December, where temperatures range from a comfortable maximum of 20°C (69°F) to a crisp minimum of -1°C (31°F). The average temperature rests at a pleasant 7°C (46°F), making it a perfect time for light layering. Expect 61 mm (2.4 in) of precipitation over approximately six days, contributing to the region's lush landscape. With humidity levels around 75%, December in Hatsukaichi invites visitors to embrace its serene beauty and tranquil atmosphere, ideal for exploring the scenic wonders of the area.
As December unfolds in Hatsukaichi, Japan, it ushers in a noticeable chill, with temperatures dipping to a minimum of -1°C (31°F). The average temperature hovers around 7°C (46°F), creating a crisp winter atmosphere that contrasts sharply with the milder conditions of the preceding months. This transitional month sees daytime highs reaching up to 20°C (69°F), showcasing the tail end of the autumn warmth before winter takes full hold. Compared to November, where the minimum was 2°C (36°F) and the average was 13°C (55°F), December marks a distinct drop, emphasizing the approach of the colder season. The decreasing trend in temperatures highlights a changing climate, inviting residents and visitors alike to embrace warm clothing and the seasonal festivities that characterize this beautiful Japanese locale during the winter months.
In December, Hatsukaichi experiences a noticeable shift in precipitation, as the month records 61 mm (or 2.4 inches) of rain over 6 days. This marks a slight increase from November's scant 37 mm (1.5 in), indicating that the region is transitioning into a wetter winter season. While December's rainfall is still modest compared to the summer months—most notably July's 386 mm (15.2 in)—the consistent precipitation serves as a reminder of the approaching cold season. This increase in rainfall continues the trend of escalating precipitation from late fall into winter, with December serving as a bridge connecting the drier months to the more humid weather that characterizes the early year.
In Hatsukaichi, Japan, December brings a slight dip in humidity to 75%, which is in line with the cooler temperatures of late autumn. As the year progresses, humidity levels peak during the scorching summer months of July and August, reaching a high of 95% and 93%, respectively. Following this peak, humidity begins to gradually decline, dropping to the more comfortable range in the later months, with November at 76% and December at 75%. This trend highlights the seasonal fluctuations experienced in Hatsukaichi, showcasing a shift from the oppressive dampness of summer to the more moderate conditions of winter, making December a relatively pleasant month for outdoor activities.
As the year draws to a close in Hatsukaichi, Japan, the December UV Index dips to 4, indicating a moderate level of sun exposure, with a burn time of about 30 minutes. This trend reflects a gradual decrease in UV intensity from the extreme levels reached during the summer months, where indices peaked at 12. Following the high readings of April through August, which mandated cautious sun protection in just 10 minutes, December provides a welcome reprieve for outdoor enthusiasts. Nonetheless, it’s essential to remain vigilant about UV exposure year-round. For more detailed insights, visit Hatsukaichi UV Index.
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In Hatsukaichi, Japan, December brings a gentle decline in sunshine hours, averaging 220 hours amidst the winter chill. This marks a significant drop from the vibrant sunshine of August, which boasts an impressive 308 hours. As the year progresses, sunshine hours generally follow a modest arc, peaking in late spring and summer before tapering off towards winter's arrival. The trend reveals how December, while cooler, still offers a respectable amount of sunlight, ensuring that the beauty of the season can be enjoyed, even as the days grow shorter. It's a time when the crisp air and soft sunlight create a picturesque backdrop, inviting residents and visitors alike to embrace the serene winter atmosphere.
In December, Hatsukaichi, Japan, experiences a 55% chance of sunny weather, making it one of the brighter months toward the end of the year. This figure marks a noticeable increase from the earlier winter months, particularly compared to the 43% in January and 50% in February. As the seasons transition, the likelihood of sunny days tends to fluctuate, with November also presenting a relatively high 52% chance. Interestingly, December's sunshine probability aligns with the more favorable tendencies observed in the fall months, suggesting that while winter settles in, residents and visitors can still look forward to bright spells amidst the chill.
In Hatsukaichi, Japan, the daylight duration ebbs and flows throughout the year, reflecting the changing seasons. Starting strong in the early months of January and February with a consistent 10 hours of daylight, the trend shifts as spring approaches, with daylight increasing to a refreshing 11 hours in March. As the days lengthen, April and May bask in 13 hours of sunlight, bringing a vibrant energy to the landscape. This peak continues into the height of summer, where June and July offer an ample 14 hours of daylight, perfect for enjoying the great outdoors. However, as autumn descends, daylight gradually wanes, falling to 12 hours in September and further dwindling to 9 hours by the end of December. This rhythmic cycle not only marks the passage of time but also invites residents and visitors alike to embrace the seasonal changes in this picturesque locale.
In December, Hatsukaichi, Japan, experiences a slight uptick in wind speed, averaging 3.3 m/s (7 mph), which mirrors the more dynamic conditions of February. This month’s winds bring a refreshing chill, contrasting with the milder breezes of the summer months, where speeds dipped to around 1.8 m/s (4 mph) in June. Throughout the year, wind speeds have consistently hovered between 2.0 m/s (5 mph) and 3.3 m/s (7 mph), suggesting a seasonal ebb and flow influenced by the changing climate. As winter settles in, the stronger December winds herald the arrival of cooler temperatures, urging residents to don their warm hats and embrace the brisk air that blankets the region.
Weather in Hatsukaichi varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hatsukaichi, focusing on differences in temperature, rainfall, humidity, and UV levels.
December typically ushers in milder temperatures compared to January, with an average of 7°C (46°F) and a maximum reaching 20°C (69°F), while January's temperatures drop slightly to an average of 5°C (42°F) and a maximum of 15°C (59°F). Precipitation in December is also a bit higher at 61 mm (2.4 in) compared to January's 49 mm (1.9 in), with both months experiencing rain on about 6 days. Humidity remains relatively consistent, with December at 75% and January slightly higher at 76%. For a detailed look at what to expect during the winter months, you can check Hatsukaichi weather in January.
December and February exhibit some notable similarities and differences in weather patterns. In December, temperatures range from a minimum of -1°C (31°F) to a maximum of 20°C (69°F), with an average temperature of 7°C (46°F) and a humidity level of 75%. The month sees approximately 61 mm (2.4 in) of precipitation over about 6 days. Conversely, February experiences slightly cooler conditions, with temperatures dropping to a minimum of -4°C (26°F) and averaging around 6°C (43°F). The maximum temperature remains similar at 20°C (68°F), but precipitation increases to 69 mm (2.7 in) across 7 days, while humidity decreases slightly to 72%. For a detailed look at the February weather, you can check Hatsukaichi weather in February.
When comparing the weather in December and March, notable differences emerge. December experiences cooler temperatures with a minimum of -1°C (31°F) and an average of 7°C (46°F), while March sees slightly warmer conditions, starting at a minimum of 1°C (33°F) and averaging 10°C (50°F). Precipitation is more prevalent in March, totaling 125 mm (4.9 in) over 10 days compared to December’s 61 mm (2.4 in) across 6 days, indicating a wetter start to spring. Despite this, March maintains a lower humidity level of 69% compared to December's 75%. For a more detailed look at March weather, you can visit Hatsukaichi weather in March.
In December, temperatures in Hatsukaichi range from a chilly -1°C (31°F) at night to a mild 20°C (69°F) during the day, with an average of 7°C (46°F). The month experiences relatively low precipitation, totaling 61 mm (2.4 in) over about 6 days, and maintains a consistent humidity level of 75%.
Conversely, April brings warmer temperatures, with nighttime lows of 2°C (36°F) and daytime highs reaching up to 24°C (76°F), resulting in a comfortable average of 14°C (58°F). However, this month sees increased rainfall, with a total of 137 mm (5.4 in) spread across approximately 9 days, while humidity remains steady at 75%. For more detailed weather information, visit Hatsukaichi weather in April.
Overall, April offers a more temperate climate compared to the cooler and drier December, making it a more favorable time for outdoor activities.
In December, the weather in Hatsukaichi is considerably cooler, with average temperatures ranging from a chilly -1°C (31°F) at night to a mild 20°C (69°F) during the day. The month experiences about 61 mm (2.4 in) of precipitation over approximately 6 days, with a humidity level of 75%. In contrast, May brings warmer temperatures, with nighttime lows of 7°C (45°F) and daytime highs reaching a comfortable 28°C (83°F). This month is also wetter, with 136 mm (5.4 in) of rainfall across 9 days and a humidity level of 84%. For a more detailed look at what to expect, check out Hatsukaichi weather in May.
December and June present strikingly different weather patterns. In December, temperatures range from a chilly -1°C (31°F) at night to a mild 20°C (69°F) during the day, with an average of 7°C (46°F). Precipitation is relatively light, averaging 61 mm (2.4 in) over just 6 days, and humidity sits at a comfortable 75%. In contrast, June is much warmer, with nighttime lows of 14°C (57°F) and daytime highs reaching up to 29°C (85°F), averaging around 22°C (72°F). The month is significantly wetter, receiving 181 mm (7.1 in) of rain over 14 days, accompanied by higher humidity at 88%. For a closer look at how the weather impacts daily life, you can explore Hatsukaichi weather in June.
December and July present contrasting weather experiences. In December, temperatures range from a chilly minimum of -1°C (31°F) to a comfortable maximum of 20°C (69°F), with an average of 7°C (46°F). This month sees a moderate amount of precipitation at 61 mm (2.4 in) over approximately six days, accompanied by a humidity level of 75%. In stark contrast, July boasts much warmer temperatures, with a minimum of 18°C (65°F) and a peak of 35°C (95°F), averaging at 26°C (79°F). The month is notably wetter, receiving 386 mm (15.2 in) of rain across 19 days, and experiences high humidity at 95%. The dramatic differences in temperature and precipitation between the two months highlight the seasonal shifts experienced in this region. For a detailed look at July’s weather, check out Hatsukaichi weather in July.
December and August present two distinctly different weather experiences. In December, temperatures range from a minimum of -1°C (31°F) to a maximum of 20°C (69°F), with an average of 7°C (46°F). The month sees around 61 mm (2.4 in) of precipitation over approximately six days, accompanied by a relatively comfortable humidity level of 75%. In stark contrast, August features much warmer temperatures, with minimums around 20°C (67°F) and maximums peaking at 35°C (96°F), averaging 28°C (82°F). Rainfall is significantly higher at 256 mm (10.1 in) over 14 days, coupled with a high humidity of 93%. For a detailed look at the weather specifics, you can visit Hatsukaichi weather in August.
In comparing the weather of December and September, it’s evident that these two months present stark contrasts. December experiences cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 20°C (69°F), averaging around 7°C (46°F). In contrast, September boasts much warmer conditions, with minimums of 15°C (60°F), maximums reaching up to 33°C (92°F), and an average of 24°C (75°F). Additionally, September is notably wetter, receiving 237 mm (9.3 in) of precipitation over 14 days, whereas December sees only 61 mm (2.4 in) across 6 days, despite having a higher humidity level of 75% compared to September's 84%. For more details about the contrasting weather patterns in September, you can explore Hatsukaichi weather in September.
December weather brings noticeably cooler temperatures, with averages around 7°C (46°F) compared to October's milder averages of 19°C (66°F). In December, the maximum temperature reaches 20°C (69°F), while October can soar to 29°C (85°F), showcasing a significant drop in warmth. Precipitation is also less frequent in December, with only 61 mm (2.4 in) over 6 days, compared to October's much wetter conditions, which see 172 mm (6.8 in) across 10 days. Despite both months having similar humidity levels, with December at 75% and October at 79%, October feels considerably warmer overall. For more detailed information about October weather, you can visit Hatsukaichi weather in October.
December weather tends to be cooler and wetter compared to November. In December, the average temperature drops to 7°C (46°F) with a minimum of -1°C (31°F) compared to November’s average of 13°C (55°F) and a minimum of 2°C (36°F). Additionally, December experiences more precipitation, with 61 mm (2.4 in) spread over 6 days, while November sees less at 37 mm (1.5 in) over 5 days. Humidity levels are relatively similar, remaining around 75% in December and 76% in November. For a more detailed look at November's weather, you can refer to Hatsukaichi weather in November.
As December settles in, Hatsukaichi experiences a notable shift in weather compared to the milder autumn months. The cool temperatures become more pronounced, often plunging into the chilly single digits at night, while daytime highs remain modest. This month also brings increased humidity levels, coupled with occasional precipitation that can dampen outdoor plans. The charm of winter begins to take hold, contrasting sharply with the vibrant colors of fall, making December a transitional period worth embracing. For more detailed insights into the seasonal trends, visit Hatsukaichi Climate.