Last updated: August 21, 2025
In Hatsukaichi, Japan, January brings a cool and damp climate characterized by an average temperature of 5°C (42°F). Daily highs can reach a pleasant 15°C (59°F), while nighttime lows can dip to a chilly -4°C (25°F). The month sees around 49 mm (1.9 in) of precipitation spread over 6 days, contributing to a relatively high humidity level of 76%. This combination of temperatures and moisture creates a refreshing winter atmosphere, ideal for exploring the region's natural beauty.
In Hatsukaichi, Japan, January brings a crisp chill with temperatures ranging from a low of -4°C (25°F) to a comfortable high of 15°C (59°F). This month marks the beginning of winter, where the average temperature hovers around 5°C (42°F), providing a stark contrast to the milder months that follow. As the seasons transition into February and March, temperatures gradually rise, with February slightly warmer at an average of 6°C (43°F) and March seeing a jump to 10°C (50°F), showcasing the gradual shift towards spring. Notably, the highs continue to ascend, peaking at 22°C (71°F) in March, hinting at the invigorating warmth awaiting in the following months. Thus, January is often a time for bundling up, while anticipation builds for the beautiful climate changes on the horizon.
In January, Hatsukaichi experiences relatively mild precipitation, totaling 49 mm (1.9 in) over six days, setting the tone for a month that often enjoys cooler temperatures and occasional light rain. As winter transitions into early spring, February sees an uptick in both rainfall and the number of precipitation days, with 69 mm (2.7 in) measured over seven days. This gradual increase continues into March, where precipitation more than doubles to 125 mm (4.9 in) across ten days, heralding the arrival of spring and promoting lush landscapes. With each subsequent month, rainfall peaks in July at a staggering 386 mm (15.2 in), the hallmark of the Japanese rainy season, while the year's total pattern hints at a wet season characterized by heavier downpours. Interestingly, January’s relatively dry conditions stand in contrast to the humid summers, highlighting a dynamic climate that showcases the essence of Hatsukaichi's changing seasons.
In Hatsukaichi, Japan, January greets residents with a relatively high humidity level of 76%, setting a tone for a month that feels both cool and damp. This trend of elevated humidity continues into February, dipping slightly to 72%, before further decreasing to 69% in March. However, as spring approaches, humidity begins to rebound in April to 75%, hinting at the upcoming warmth. By May, the air becomes noticeably more humid at 84%, and the summer months bring a peak of 95% in July, creating a muggy atmosphere. The humidity remains high through August at 93%, before gradually declining in the fall, settling at 76% in November and 75% in December. This cycle showcases how Hatsukaichi transitions from a crisp winter into a lush, humid summer, only to return to drier air as the year closes.
In Hatsukaichi, Japan, January sees a moderate UV Index of 4, with a burn time of 30 minutes, allowing for comfortable outdoor activities while still necessitating sun protection. As the months progress, the UV Index rises steadily; by February, it increases to 5, maintaining the moderate classification. March brings a noticeable shift with a surge to 8, indicating very high levels of UV radiation and a reduced burn time of just 15 minutes. The intensifying sun continues into April and May, where the Index peaks at 11, categorized as extreme, and necessitating vigilant sun safety measures with a mere 10-minute burn time. This extreme trend persists through the summer months of June and July, as temperatures rise and UV exposure becomes even more critical. By September, there's a slight decrease to 10 before tapering off to lower levels in the fall and winter, with the UV Index returning to 4 by December. This trend highlights the importance of monitoring UV levels throughout the year for optimal skin protection. For further insights on UV conditions in the area, check out Hatsukaichi UV Index.
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In Hatsukaichi, Japan, the month of January welcomes the year with a modest 184 hours of sunshine, a gentle precursor to the more radiant days ahead. As winter transitions to spring, sunlight steadily increases, reaching 266 hours by March and peaking in May with an impressive 303 hours. This upward trend highlights a gradual infusion of brightness that continues through the summer months, culminating in August, where sunshine graces the city for a remarkable 308 hours. As the seasons turn, however, the glimmer of daylight gradually recedes, dropping to 220 hours by December. This annual cycle beautifully encapsulates Hatsukaichi's dynamic relationship with sunlight, showcasing a vibrant progression that enhances the charm of each season.
In Hatsukaichi, Japan, January offers a 43% chance of sunny weather, setting the tone for the year's early months. As we transition into February, this likelihood increases to 50%, hinting at a brighter start as winter wanes. However, the chances dip again in March to 40%, showcasing a fluctuation in weather patterns typical for this time of year. Interestingly, April sees a mild resurgence with a 47% chance of sunshine, before dropping further in May to 31%. The trend continues downward through the summer months, with July and August yielding the least sunshine at only 23% and 25%, respectively. As autumn approaches, the prospects brighten considerably, with October experiencing a striking 59% chance of sun, marking a welcoming shift after the grayness of summer. Overall, January's sunny weather likelihood introduces a year punctuated by cyclical variations, leading to a flourishing autumn.
In Hatsukaichi, Japan, January marks the beginning of the year with a modest 10 hours of daylight, a duration that remains consistent through February. As spring approaches in March, daylight begins to stretch, offering an extra hour that heralds the shift in seasons. This trend continues into April and May, where daylight reaches 13 hours, allowing residents to enjoy the blooming landscapes. The peak of summer in June and July brings the longest days, each boasting 14 hours of sunlight, perfect for outdoor activities. However, as August transitions into autumn, daylight gradually declines, tapering to 12 hours in September and further to 11 hours in October. By the time November and December arrive, the daylight dims back to 10 hours and 9 hours respectively, painting a seasonal cycle reflective of the region's harmonious relationship with nature.
In Hatsukaichi, Japan, January brings a gentle breeze with an average wind speed of 3.1 m/s (7 mph), setting the tone for the upcoming months. As winter wanes into February, the wind picks up slightly to 3.3 m/s (7 mph), creating a crisp atmosphere that contrasts with the more calmed conditions of late spring and summer, where speeds drop to around 2.0 m/s (5 mph) in July. This trend of decreasing wind speeds continues into the warmer months, reaching a low of 1.8 m/s (4 mph) in June, before being followed by a gradual increase in the autumn months. By December, winds pick up again, returning to 3.3 m/s (7 mph), suggesting a notable cyclical pattern in Hatsukaichi’s wind, with the winter months consistently featuring the briskest breezes.
Weather in Hatsukaichi varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Hatsukaichi, focusing on differences in temperature, rainfall, humidity, and UV levels.
January typically experiences cold weather with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 15°C (59°F), and an average of 5°C (42°F). The month sees about 49 mm (1.9 in) of precipitation over approximately 6 days and maintains a humidity level of 76%. In contrast, February offers slightly milder conditions, with a minimum temperature still at -4°C (26°F) but an increased average of 6°C (43°F) and a higher maximum of 20°C (68°F). However, February also brings more precipitation, totaling 69 mm (2.7 in) across 7 days, and has a slightly lower humidity of 72%. For more details on February weather, you can visit Hatsukaichi weather in February.
In January, the weather is quite cold, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 15°C (59°F), averaging around 5°C (42°F). The month also sees frequent precipitation on about 6 days, totaling 49 mm (1.9 in), accompanied by high humidity levels of 76%. In contrast, March marks a noticeable transition, featuring warmer temperatures that range from a minimum of 1°C (33°F) to a maximum of 22°C (71°F), with an average of 10°C (50°F). However, March experiences significantly higher precipitation, accumulating 125 mm (4.9 in) over 10 days, but with lower humidity at 69%. For a detailed look at Hatsukaichi weather in March, check the link.
January weather in Hatsukaichi is typically cold, with minimum temperatures dropping to -4°C (25°F) and an average of 5°C (42°F). The maximum can reach up to 15°C (59°F), while the month sees about 49 mm (1.9 in) of precipitation over six days, accompanied by a humidity level of 76%. In contrast, April experiences milder temperatures, with a minimum of 2°C (36°F) and an average of 14°C (58°F), peaking at 24°C (76°F). However, April is wetter, with 137 mm (5.4 in) of rain spread over nine days and a slight decrease in humidity to 75%. For more details on the weather during this month, you can refer to Hatsukaichi weather in April.
In January, the weather is notably colder, with average temperatures ranging from a minimum of -4°C (25°F) to a maximum of 15°C (59°F). The month sees about 49 mm (1.9 in) of precipitation over approximately 6 days, and humidity levels hover around 76%. In contrast, May brings a significant warmth, with temperatures ranging from a minimum of 7°C (45°F) to a pleasant maximum of 28°C (83°F). This month experiences higher rainfall, totaling 136 mm (5.4 in) across about 9 days, accompanied by increased humidity at 84%. For a detailed look at May's weather specifics, you can visit Hatsukaichi weather in May.
In January, temperatures in Hatsukaichi are quite chilly, with a minimum of -4°C (25°F) and an average of 5°C (42°F), peaking at 15°C (59°F). This month experiences relatively low precipitation, totaling 49 mm (1.9 in) over six days, and has a humidity level of 76%. In stark contrast, June presents warm and humid weather with minimum temperatures of 14°C (57°F) and an average high of 22°C (72°F), reaching as high as 29°C (85°F). Precipitation significantly increases to 181 mm (7.1 in) across 14 days, accompanied by higher humidity levels of 88%. For more details on the weather in June, you can visit Hatsukaichi weather in June.
January and July present starkly contrasting weather conditions. In January, temperatures can plummet to a minimum of -4°C (25°F) with an average of 5°C (42°F) and a maximum of 15°C (59°F). The month sees relatively low precipitation, totaling 49 mm (1.9 in) over 6 days, and humidity levels hover around 76%. In contrast, July boasts much warmer temperatures, with a minimum of 18°C (65°F), an average of 26°C (79°F), and highs reaching up to 35°C (95°F). However, July is also characterized by significantly higher rainfall, accumulating 386 mm (15.2 in) over 19 days, and the humidity soars to 95%. For a closer look at July's climate, check out Hatsukaichi weather in July.
January and August present stark contrasts in weather conditions. In January, temperatures range from a chilly -4°C (25°F) at night to a mild 15°C (59°F) during the day, with an average of around 5°C (42°F). The month sees about 49 mm (1.9 in) of precipitation over 6 days, coupled with a humidity level of 76%. In contrast, August features much warmer temperatures, with nighttime lows around 20°C (67°F) and daytime highs peaking at 35°C (96°F), leading to an average of 28°C (82°F). This summer month experiences significantly higher rainfall, totaling 256 mm (10.1 in) across 14 days, and humidity rises to a high 93%. To learn more about the August weather in Hatsukaichi, check out Hatsukaichi weather in August.
January and September present stark contrasts in weather. January typically sees cooler temperatures, with daily averages ranging from a chilly -4°C (25°F) to a maximum of 15°C (59°F), along with relatively low precipitation of 49 mm (1.9 in) over just 6 days. In contrast, September offers a much warmer climate, with minimum temperatures starting at 15°C (60°F) and soaring up to a high of 33°C (92°F). This month also experiences significant rainfall, with 237 mm (9.3 in) falling over 14 days, contributing to a notably higher humidity level of 84%. For a deeper dive into the weather patterns, check out Hatsukaichi weather in September.
When comparing January and October weather, there is a stark contrast in temperatures and precipitation. January sees chilly conditions, with average temperatures ranging from a low of -4°C (25°F) to a maximum of 15°C (59°F) and relatively low precipitation of 49 mm (1.9 in) over six days. In contrast, October enjoys milder weather, with temperatures ranging from a minimum of 8°C (46°F) to a pleasant average of 19°C (66°F), peaking at 29°C (85°F). Additionally, October experiences significantly higher rainfall at 172 mm (6.8 in) over ten days and a slight increase in humidity at 79%. For more details on October weather, you can check Hatsukaichi weather in October.
In January, the weather features colder temperatures, with a minimum of -4°C (25°F) and an average of 5°C (42°F), contrasted with November's milder conditions, where temperatures range from a minimum of 2°C (36°F) to an average of 13°C (55°F). While both months share a humidity level of 76%, January typically experiences slightly more precipitation at 49 mm (1.9 in) over 6 days compared to November's 37 mm (1.5 in) over 5 days. This results in November being a more comfortable month overall, with warmer temperatures and less rainfall. For more specific details, you can check Hatsukaichi weather in November.
In comparing the weather between January and December, January typically experiences colder temperatures, with a minimum of -4°C (25°F) and an average of 5°C (42°F), whereas December's minimum is slightly milder at -1°C (31°F) and an average of 7°C (46°F). Maximum temperatures in January reach only 15°C (59°F), compared to December's warmer max of 20°C (69°F). Both months see similar levels of precipitation, with January receiving 49 mm (1.9 in) and December slightly higher at 61 mm (2.4 in), although both have around six days of rainfall. Humidity levels remain quite consistent, with January at 76% and December at 75%. For a more detailed look at December weather, visit Hatsukaichi weather in December.
As January settles in Hatsukaichi, temperatures experience a notable dip compared to the milder months of spring and fall. With maximums around 15°C and lows plunging to -4°C, the climate is significantly cooler, enveloped by a crisp chill. The month also brings an uptick in humidity, averaging around 76%, giving the air a damp feel, complemented by precipitation on about 6 days. While January is enveloped in a serene atmosphere, it offers a different experience from the lush blooms of cherry blossoms in March or the warmth of summer, making it a unique time to enjoy the tranquil beauty of this region. For those looking to dive deeper into the weather patterns, be sure to explore Hatsukaichi Climate.