Last updated: August 21, 2025
January in Omihachiman, Japan features a striking blend of winter chill and occasional warmth. The average temperature hovers around 4°C (39°F), with maximum highs reaching up to 15°C (60°F), while chilly nights can dip to a brisk -6°C (22°F). Rain is quite frequent, with 71 mm (2.8 in) of precipitation spread over 13 days, contributing to a high humidity level of 82%. This combination of factors lends January its unique character, making it a month of cool, damp weather that is both invigorating and refreshing for locals and visitors alike.
In January, Omihachiman experiences a notable chill, with temperatures ranging from a low of -6°C (22°F) to a mild high of 15°C (60°F), resulting in an average of 4°C (39°F). The stark contrast with February, where temperatures dip further—with a minimum of -10°C (13°F)—shows the cold's persistence, yet February also teases us with occasional peaks of 20°C (68°F). By March, winter begins to relent; minimum temperatures rise to -1°C (30°F), while daytime warmth increases, culminating in highs of 23°C (75°F). As spring approaches, April introduces a gentle warmth, averaging 13°C (56°F), heralding the transition towards balmy days ahead. This gradual warming trend continues into the following months, as May and June present increasingly comfortable conditions and peak temperatures, suggesting that Omihachiman is on the brink of a vibrant summer, with January serving as a chilly but transformative start to the year.
In January, Omihachiman experiences a moderate precipitation level of 71 mm (2.8 in) spread across approximately 13 rainy days. This amount is slightly higher than February's 69 mm, hinting at the transition from winter into the rainier months ahead. As the calendar approaches spring, precipitation begins to rise significantly, with March and April showcasing a notable increase, reaching 125 mm (4.9 in) and 142 mm (5.6 in) respectively. This upward trend continues through the spring, peaking in the summer months, particularly in July with a remarkable 286 mm (11.3 in). By observing these patterns, it’s clear that while January may feel somewhat dreary, it lays the foundation for the lush, vibrant seasons that follow.
In Omihachiman, Japan, January's moisture-laden air brings an average humidity of 82%, setting the stage for a winter that feels crisp yet damp. As the months progress into February and March, humidity levels dip slightly to 79% and 74%, respectively, offering a brief respite before spring arrives with a slight uptick to 76% in April. However, the true essence of Omihachiman's humid climate emerges in May, where humidity rises to 83%, followed by a noticeable surge through the summer months—87% in June, peaking at a sweltering 93% in July. The post-summer months see humidity gradually decline but remain elevated, with September at 87% and October slightly lower at 85%. This trend rounds off the year with November and December both maintaining a humidity level of 83%, showcasing Omihachiman's characteristic seasonal fluctuations that create a rich tapestry of weather experiences throughout the year.
In January, Omihachiman experiences a moderate UV Index of 4, suggesting that while some sun protection is necessary, the risk of harm from unprotected sun exposure is relatively low, with a burn time of approximately 30 minutes. As the months progress, UV levels begin to rise sharply; February sees an increase to 6 with a high exposure category, and by March, the Index escalates to 8, indicating very high risk where burn time diminishes to just 15 minutes. The trend of rising UV levels continues into April and May, peaking at an extreme 11, where protective measures become crucial as the burn time shrinks further to 10 minutes. This period of intense UV exposure persists through to August before tapering off in September, revealing a cyclical pattern of increasing sun intensity that warrants awareness for both locals and visitors. For more detailed insights, check the full forecast at Omihachiman UV Index.
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In January, Omihachiman basks in 177 hours of sunlight, a gentle start to the year that hints at the brighter days ahead. As the months progress, the sunshine steadily brightens, peaking in August with an impressive 292 hours, showcasing the vibrant energy of summer. This upward trend continues through spring and early summer, with April and May enjoying a delightful increase to 270 and 282 hours, respectively. However, as the seasons shift into autumn, the sunlight begins to slowly decline, with September and October witnessing a gradual decrease to 232 and 230 hours. By the time we reach December, there is a subtle drop to 211 hours, bringing the year to a close with a comforting but notably less radiant farewell. This cycle of fluctuating sunlight not only highlights the beauty of the seasons but also captures the essence of life in Omihachiman.
In Omihachiman, Japan, January sees a 40% chance of sunny weather, marking the beginning of the year with a moderate invitation to enjoy outdoor activities. As winter transitions into spring, the likelihood of sun slightly increases in February to 43%, before dipping again in March to 36%. Notably, the chances of sunshine rise rather dramatically as the year progresses, with October and November showing promising peaks of 50% and 55% respectively. Meanwhile, the summer months of June and August present lower probabilities, such as 22% and 23%, suggesting that while January offers a fair chance of clearer skies, the later months might just reward those patiently awaiting sunnier days. Overall, residents and visitors can anticipate a gradual improvement in sunny weather as they move from the cold of winter toward the warmth of spring and summer.
In Omihachiman, Japan, the month of January offers a moderate 10 hours of daylight, a trend that continues into February. As spring approaches, notable changes begin in March, with daylight extending to 11 hours, signaling a gradual increase in warmth and vitality. This upward trajectory continues into April and May, where daylight reaches 13 and a vibrant 14 hours, respectively, inviting longer evenings and more outdoor activities. The longest days occur during the summer months of June through August, maintaining that 14-hour mark, before gradually tapering off. By September, daylight reduces to 12 hours, with a gentle decline into winter, where November sees daylight return to 10 hours, and December shortens further to a cozy 9 hours. This cycle reflects the seasonal rhythm of life in Omihachiman, where each month unfolds a unique blend of light and shadow.
In January, the winds in Omihachiman begin to stir with an average speed of 3.0 m/s (7 mph), creating a crisp and invigorating atmosphere that marks the heart of winter. This wind speed remains relatively steady though the month transitions into February, which sees a slight increase to 3.3 m/s. As spring approaches in March, the winds pick up a notch, reaching 3.4 m/s (8 mph), making for fresh, breezy days that beckon outdoor exploration. However, by April, the average wind speed dips back to 3.2 m/s, mirroring the gentle ebbs and flows of the changing season. The summer months bring a notable decrease, with July's winds slowing to just 2.0 m/s (4 mph), allowing for warmer and more tranquil evenings. Interestingly, the wind gradually picks up again in October, settling at 2.6 m/s as autumn looms, and finally returning to 3.0 m/s in December, completing the cycle. This pattern reflects a seasonal rhythm, with January's winds heralding the cold winter months before yielding to the calmness of summer, only to regain strength as the year winds down.
Weather in Omihachiman varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Omihachiman, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather in Omihachiman presents a chilly range, with minimum temperatures reaching -6°C (22°F) and average highs around 15°C (60°F). The month experiences 71 mm (2.8 in) of precipitation over 13 days and maintains a humidity level of 82%. In contrast, February sees slightly colder nights with temperatures dipping to -10°C (13°F), but the maximum can rise to a pleasant 20°C (68°F), and the average remains stable at 4°C (40°F). Precipitation in February is slightly less at 69 mm (2.7 in) over 12 days, accompanied by a lower humidity of 79%. For more detailed information, visit Omihachiman weather in February.
January is characterized by colder temperatures, with a minimum of -6°C (22°F) and an average of 4°C (39°F), while March starts to warm up, featuring a minimum of -1°C (30°F) and an average of 9°C (48°F). The maximum temperatures in January reach up to 15°C (60°F), compared to a much milder 23°C (75°F) in March. Precipitation levels also differ, with January receiving 71 mm (2.8 in) over 13 days, while March experiences increased rainfall of 125 mm (4.9 in) over the same number of days. Interestingly, despite the higher precipitation in March, humidity is lower at 74% compared to January's 82%. For a detailed look at the weather in March, you can visit Omihachiman weather in March.
January and April exhibit notable differences in weather conditions. In January, temperatures are significantly colder, with minimums dropping to -6°C (22°F) and an average temperature of just 4°C (39°F), while April enjoys warmer conditions, with temperatures ranging from a minimum of 0°C (32°F) to a comfortable average of 13°C (56°F). Additionally, April can reach maximum temperatures of 27°C (80°F), contrasting sharply with January’s upper limit of 15°C (60°F). Precipitation is also more substantial in April, totaling 142 mm (5.6 in) over 11 days, compared to January's 71 mm (2.8 in) over 13 days. Despite April's higher rainfall, humidity levels are slightly lower at 76% compared to January’s 82%. For a detailed look at April's weather, you can visit Omihachiman weather in April.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 15°C (60°F), and an average temperature of around 4°C (39°F). The month sees about 71 mm (2.8 in) of precipitation over 13 days, accompanied by high humidity levels at 82%. In stark contrast, May brings a significant warm-up, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 32°C (89°F), and an average of 18°C (65°F). Despite having slightly fewer rainy days at 11, May experiences increased precipitation, with a total of 143 mm (5.6 in) and a humidity level that remains high at 83%. For more detailed insights into May weather, you can check out Omihachiman weather in May.
In January, the weather is considerably cooler with average temperatures around 4°C (39°F) and nighttime lows that can drop to -6°C (22°F). The month experiences relatively low precipitation levels at 71 mm (2.8 in), but the humidity remains high at 82%, contributing to a crisp winter atmosphere. In contrast, June sees a significant warming trend, with temperatures averaging 22°C (71°F) and highs reaching up to 32°C (90°F). Precipitation increases in June to 166 mm (6.5 in), although the rain falls over the same number of days as in January. The humidity rises to 87%, creating a warm, muggy feel typical of summer months. For a detailed look at weather conditions specific to June, you can visit Omihachiman weather in June.
January and July offer stark contrasts in weather, showcasing the extremes of winter and summer. In January, temperatures range from a chilly minimum of -6°C (22°F) to an average of 4°C (39°F), with highs reaching a mild 15°C (60°F). The month experiences about 71 mm (2.8 in) of precipitation over 13 days, with humidity sitting at a relatively high 82%. In stark contrast, July brings warmth and humidity, with temperatures starting at a minimum of 19°C (66°F) and averaging around 26°C (79°F), peaking at a sweltering 36°C (98°F). Precipitation rises significantly to 286 mm (11.3 in) over 21 days, and humidity levels increase to a steamy 93%. For a detailed look at the weather during this month, check out Omihachiman weather in July.
January and August present two strikingly different climate profiles. In January, temperatures range from a chilly minimum of -6°C (22°F) to a maximum of 15°C (60°F), with an average of 4°C (39°F). The month experiences moderate precipitation, totaling 71 mm (2.8 in) over about 13 days, accompanied by a relatively high humidity level of 82%. In contrast, August is characterized by significantly warmer weather, with temperatures ranging from a minimum of 18°C (64°F) to a scorching maximum of 37°C (99°F) and an average of 28°C (82°F). Precipitation increases during this month, amounting to 188 mm (7.4 in) across 15 days, along with a slight rise in humidity to 91%. For more details, you can explore Omihachiman weather in August.
January and September present stark contrasts in weather. January is characterized by colder temperatures, with a minimum of -6°C (22°F) and an average of 4°C (39°F), peaking at 15°C (60°F). Precipitation is relatively low, totaling 71 mm (2.8 in) over 13 days, accompanied by a humidity level of 82%. In contrast, September experiences much warmer conditions, with temperatures ranging from a minimum of 14°C (57°F) to an average of 23°C (74°F) and a maximum reaching 34°C (94°F). This month sees significantly higher precipitation at 165 mm (6.5 in) over the same number of days, along with slightly elevated humidity at 87%. For a closer look at September’s weather specifics, you can visit Omihachiman weather in September.
January and October weather present a striking contrast, both in temperature and precipitation. In January, the temperatures range from a chilly -6°C (22°F) to a mild 15°C (60°F), with an average of about 4°C (39°F). The month experiences moderate precipitation, totaling 71 mm (2.8 in) over 13 days, accompanied by relatively high humidity at 82%.
In contrast, October boasts significantly warmer temperatures, with a minimum of 8°C (46°F) and a peak reaching 31°C (88°F), averaging around 18°C (64°F). However, it is also much wetter, with precipitation of 224 mm (8.8 in) occurring across the same 13 days, and the humidity rising slightly to 85%. The increased warmth and rainfall in October make it a month of vibrant change. For more detailed insights into this month, you can visit Omihachiman weather in October.
January and November present contrasting weather conditions in terms of temperature and precipitation. January experiences colder temperatures, with a minimum of -6°C (22°F) and an average of 4°C (39°F), while November offers milder weather, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 24°C (76°F) and an average of 12°C (54°F). In January, precipitation is slightly higher at 71 mm (2.8 in) over 13 days, compared to November's 52 mm (2.0 in) over just 7 days. Interestingly, both months share a high humidity level, with January at 82% and November at 83%. For more specific insights about November's weather, you can visit Omihachiman weather in November.
When comparing the weather in January and December, January tends to be slightly colder, with average temperatures ranging from a minimum of -6°C (22°F) to a maximum of 15°C (60°F). In contrast, December sees a warmer average, with temperatures ranging from -5°C (24°F) to 21°C (70°F). Additionally, December experiences more precipitation, totaling 90 mm (3.6 in) over 14 days, compared to January’s 71 mm (2.8 in) over 13 days. Humidity levels are similar, with January at 82% and December slightly higher at 83%. For more detailed insights about December weather, you can refer to Omihachiman weather in December.
January in Omihachiman stands out as a chilly yet captivating month, characterized by significant precipitation and high humidity. As temperatures range from a brisk average of 4°C (39°F) to occasional peaks of 15°C (60°F), the days can feel quite crisp, especially against the backdrop of winter's embrace. With about 13 days of rain, the landscape transforms, making it a unique time to experience the region's serene beauty. This stark weather contrast to the warmer months offers an ideal opportunity for introspection and cozy indoor activities. For more insights on how January compares with other months, check out Omihachiman Climate.