January Weather in Fuji, Japan

Last updated: August 21, 2025

In January, Fuji, Japan experiences a diverse range of temperatures, with daytime highs reaching 17°C (62°F) and nighttime lows plummeting to -7°C (20°F). The average temperature hovers around 4°C (39°F), creating a brisk winter atmosphere. Visitors can expect approximately 72 mm (2.8 in) of precipitation over 9 days, contributing to the region's characteristic 76% humidity. This unique blend of conditions makes January an intriguing time to explore the scenic beauty of Fuji, as the winter landscape is both enchanting and serene.

January Temperature in Fuji

In January, Fuji, Japan experiences chilly conditions, with temperatures ranging from a biting -7°C (20°F) at night to a mild 17°C (62°F) during the day. While the average temperature hovers around 4°C (39°F), there's a distinct chill in the air that signals the heart of winter. This cold snap transitions seamlessly into February, where temperatures rise slightly, but the essence of winter persists with lows around -5°C (24°F). As spring approaches in March, we see a gradual warming trend, with averages climbing to 8°C (47°F) and a peak of 22°C (72°F) by the end of the month. Overall, January sets the tone for the cooler months, exemplifying Fuji's colder climate before the slow but steady ascent into the more temperate spring and summer.

January Weather in Fuji: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Fuji, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fuji, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec394046546267747771615243
Data source: Temperature data for Fuji generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Fuji

In January, Fuji, Japan experiences relatively moderate precipitation, with a total of 72 mm (2.8 in) spread across about 9 days. This marks the beginning of the year with lighter rainfall compared to the heavier months that follow. As winter transitions into spring, February sees an increase to 96 mm (3.8 in) over 12 days. The trend escalates dramatically in March and April, with March bringing a significant 222 mm (8.8 in) across 15 days. This increase in precipitation signals the onset of the wetter season, culminating with June's peak of 247 mm (9.7 in) over 18 days. The rainy season persists through July, with July alone accounting for a hefty 404 mm (15.9 in) over 21 days, highlighting the stark contrast from the relatively dry conditions of January. Overall, January acts as a gentle precursor to the more intense rainfall that characterizes the subsequent months in Fuji.

January Precipitation Trends in Fuji

The chart displays monthly precipitation patterns in Fuji, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Fuji, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec729622221020124740425225435510288
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Fuji

In January, Fuji, Japan, experiences a notable humidity level of 76%, setting the tone for a winter characterized by relatively moist conditions. As the months progress, the humidity begins a gradual decline, reaching 74% in February and dropping further to 70% by March. However, this trend shifts as spring approaches, with humidity levels increasing to 74% in April and surging to 81% in May, heralding the arrival of the rainy season. By June, the humidity peaks at a remarkable 88%, followed by the sweltering summer months where July and August boast humidity levels of 93% and 90%, respectively. As autumn sets in, humidity gradually decreases yet remains high, with October at 83% and November at 80%. Ultimately, December sees a slight dip back to 78%, closing the year with a moist winter atmosphere. Overall, Fuji's humidity steadily rises during the warmer months while fluctuating in the cooler months, illustrating a clear seasonal pattern.

January Average Humidity in Fuji

This chart illustrates the average monthly humidity levels in Fuji, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Fuji is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Fuji

In January, Fuji, Japan experiences a moderate UV Index of 4, allowing for a burn time of around 30 minutes with minimal risk. As the months progress, the UV Index steadily rises, peaking at an extreme 11 in both May and June, where exposure is critical and burn time shrinks to just 10 minutes. The trend continues with July reaching an impressively high 12, before dropping slightly in August to 11. The late summer and fall months offer a slight respite, with the Index decreasing to 10 in September and further to 7 in October, while December closes the year back at a moderate 4. This pattern highlights the increasing intensity of UV exposure as winter transitions into summer. For more detailed insights, visit the Fuji UV Index.

Maximum UV Index Levels in Fuji for January

The chart shows the monthly maximum UV Index (UVI) for Fuji in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Fuji typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Fuji January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Fuji

In January, Fuji, Japan, enjoys 189 hours of sunshine, setting the stage for a gradual ascent in daylight as the year unfolds. As winter transitions into spring, February brings a delightful increase to 225 hours, followed by a steady climb to 249 hours in March. The peak of the spring months shines even brighter in April, with 260 hours of sunlight, leading into May’s golden abundance of 282 hours. However, as summer approaches, June witnesses a slight decline to 253 hours, followed by 229 hours in July. August, the sunniest month, dazzles with 285 hours of bright warmth, while September's tally of 236 hours marks the beginning of a gentle downward trend into autumn. October, November, and December bring 201, 223, and 227 hours respectively, wrapping the year in a cozy embrace of sunlight as it gradually dims. This rhythm of sunshine not only brightens the days but also invites a vibrant tapestry of seasonal change across Fuji's stunning landscapes.

Monthly Sunshine Duration in Fuji: January Highlighted

The January sunshine duration represents the total number of hours Fuji experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec189h225h249h260h282h253h229h285h236h201h223h227h
Data source: Fuji January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Fuji During January

In Fuji, Japan, January marks a relatively promising start to the year with a 56% chance of sunny weather. This likelihood is notably higher than the following month, February, which sees an uptick to 64%. However, as the seasons shift into spring, the probability of clear skies dwindles significantly, plummeting to 36% in March and further declining to 22% by May. Notably, summer months yield only modest chances of sunshine, hovering around 24% to 26%. The year's end appears to bring a welcome return to brighter days, with sunny likelihoods rising again in November to 57% and peaking at 70% in December. Overall, January provides a balanced beginning, hinting at sunnier days ahead as the year progresses.

Percentage of Sunny Days in January in Fuji

The chart illustrates the percentage of sunny days in Fuji throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Fuji experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec56%64%36%41%22%18%24%26%26%39%58%70%
Data source: Fuji January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Fuji in January

In Fuji, Japan, the daylight duration begins its gradual ascent in January, offering 10 hours of light, a consistent feature through February. As spring unfolds, daylight extends to 11 hours in March, heralding the longer days ahead. April marks a noticeable leap to 13 hours, and by May, the sun graces the skies for 14 hours, a peak that continues through June and July. As summer gives way to autumn, daylight gently recedes, tapering to 13 hours in August before falling again to 12 hours in September. October brings the sun down to 11 hours, and by November, we return to 10 hours, with December ending the year with a cozy 9 hours. This rhythmic shift in daylight not only illuminates the seasons but also reflects the vibrant transitions of nature in this picturesque locale.

Average Daylight Hours in Fuji for January

The chart illustrates the variation in daylight duration in Fuji throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 3m10h 53m11h 58m13h 4m14h14h 28m14h 14m13h 25m12h 22m11h 16m10h 18m9h 49m
Data source: Fuji daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Fuji

In January, the winds in Fuji, Japan, tend to blow gently, with an average speed of 1.9 m/s (4 mph). This calmness marks the beginning of the year, setting a serene tone as the area's breathtaking landscapes come alive under crisp, clear skies. As winter transitions into spring, wind speeds see a slight uptick in February at 2.1 m/s (5 mph), hinting at the approaching seasonal changes. However, by March, the winds ease back to 1.8 m/s (4 mph), illustrating a trend of variability that continues throughout the spring and summer months. Indeed, the winds remain relatively steady, rarely exceeding 2.1 m/s, and even dipping to a gentle 1.4 m/s (3 mph) in July and August. As the year progresses, from September to December, the wind speed stabilizes around 1.7 to 1.9 m/s, enveloping the region in a comfortable breeze that enhances the area's tranquil atmosphere. Overall, January's calm winds serve as a precursor to the subtle, yet dynamic shifts of the seasons in this picturesque setting.

Average January Wind Speed in Fuji

The chart displays monthly wind speed patterns in Fuji, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.9 m/s2.11.81.92.01.51.41.91.71.71.81.9
Data source: Fuji January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Fuji Compares to Other Months

Weather in Fuji varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Fuji, focusing on differences in temperature, rainfall, humidity, and UV levels.

January and February exhibit similar average temperatures, with January ranging from a minimum of -7°C (20°F) to a maximum of 17°C (62°F), while February sees slightly warmer temperatures, with a minimum of -5°C (24°F) and a maximum of 19°C (66°F). Both months experience a notable amount of precipitation; however, February is wetter, receiving 96 mm (3.8 in) over 12 days compared to January's 72 mm (2.8 in) over 9 days. The humidity levels remain relatively stable, with January at 76% and February at 74%. If you're interested in more detailed information about the weather patterns in February, you can check out Fuji weather in February.

In January, temperatures in the region typically range from a minimum of -7°C (20°F) to a maximum of 17°C (62°F), with an average temperature of about 4°C (39°F). The month experiences moderate rainfall, totaling 72 mm (2.8 inches) over approximately 9 days, accompanied by a relatively high humidity level of 76%.

In contrast, March sees a notable increase in temperatures, with minimums around -5°C (24°F) and maximums reaching 22°C (72°F), and an average of 8°C (47°F). However, this month is characterized by significantly higher precipitation, totaling 222 mm (8.8 inches) over 15 days, while humidity decreases to 70%. For more details about the weather in March, visit Fuji weather in March.

January and April present notable differences in weather conditions. In January, temperatures range from a chilly minimum of -7°C (20°F) to a moderate maximum of 17°C (62°F), with an average temperature of 4°C (39°F). This month sees approximately 72 mm (2.8 in) of precipitation over 9 days, accompanied by a relatively high humidity level of 76%. In contrast, April brings much warmer weather, with temperatures starting at 0°C (32°F), reaching an average of 12°C (54°F), and peaking at 25°C (78°F). However, April is wetter, with a higher total precipitation of 210 mm (8.3 in) spread over 16 days, coupled with a slightly lower humidity of 74%. For more detailed insights, you can check Fuji weather in April.

When comparing the weather between January and May, significant differences emerge. In January, temperatures range from a chilly -7°C (20°F) at minimum to a mild 17°C (62°F) at maximum, with an average of around 4°C (39°F). The month experiences about 72 mm (2.8 in) of precipitation over 9 days, with humidity levels at 76%. In contrast, May welcomes warmer weather, with temperatures varying from a minimum of 3°C (38°F) to a maximum of 28°C (83°F), averaging 17°C (62°F). However, it is also the wettest month, receiving approximately 201 mm (7.9 in) of rain across 14 days, combined with slightly higher humidity at 81%. For a closer look at May weather specifics, feel free to check out Fuji weather in May.

January and June exhibit stark differences in weather patterns. January typically sees colder temperatures, with a minimum of -7°C (20°F) and an average around 4°C (39°F). Precipitation in January is moderate at 72 mm (2.8 in), occurring over 9 days. The humidity is relatively high at 76%, contributing to a chilly atmosphere. In contrast, June brings much warmer weather, with minimum temperatures reaching 12°C (53°F) and averages soaring to 20°C (68°F), peaking at 29°C (84°F). Rainfall increases significantly in June to 247 mm (9.7 in), spread over 18 days, and the humidity rises to 88%, creating a muggy environment. For a more detailed look at the weather in June, visit Fuji weather in June.

January and July showcase stark contrasts in weather conditions. In January, temperatures range from a chilly -7°C (20°F) at night to a mild 17°C (62°F) during the day, with an average of 4°C (39°F). The month experiences about 72 mm (2.8 in) of precipitation over approximately 9 days, accompanied by a moderate humidity level of 76%. In contrast, July brings significantly warmer temperatures, with a minimum of 17°C (62°F) and a maximum reaching 33°C (91°F), resulting in an average of 23°C (74°F). However, this warmth comes with increased rainfall, as July sees around 404 mm (15.9 in) of precipitation over 21 days and heightened humidity at 93%. For a detailed look at weather patterns, visit Fuji weather in July.

January and August display striking contrasts in weather. January's temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 17°C (62°F), with an average of 4°C (39°F). In this winter month, there is a notable amount of precipitation, totaling 72 mm (2.8 in) over about 9 days, accompanied by a relatively high humidity at 76%. Conversely, August boasts significantly warmer temperatures, with a minimum of 16°C (62°F) and a maximum reaching 34°C (94°F), averaging 25°C (78°F). This summer month is much wetter, receiving 252 mm (9.9 in) of rainfall across 20 days and heightened humidity at 90%. For more details on the weather, you can check Fuji weather in August.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -7°C (20°F) to an average of 4°C (39°F) and a maximum of 17°C (62°F). This month sees a lower level of precipitation, totaling 72 mm (2.8 in) over about 9 days, combined with a humidity level of 76%. In contrast, September experiences much warmer temperatures, with a minimum of 12°C (54°F), an average of 21°C (71°F), and a peak of 32°C (90°F). However, it also comes with a significant increase in rainfall, totaling 254 mm (10.0 in) across 20 days, and higher humidity at 86%. For more details on September weather, you can check Fuji weather in September.

January and October exhibit significantly different weather patterns. In January, temperatures range from a chilly -7°C (20°F) to a mild 17°C (62°F), with an average temperature of 4°C (39°F). This month experiences about 72 mm (2.8 in) of precipitation, spread across 9 days, and has a humidity level of 76%. In contrast, October offers much warmer temperatures, with a minimum of 7°C (44°F), an average of 16°C (62°F), and a maximum of 29°C (85°F). Precipitation also increases sharply during October, reaching 355 mm (14.0 in) over 19 days, alongside a slightly higher humidity of 83%. For those interested in more specific conditions during this month, check out Fuji weather in October.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 17°C (62°F) and an average of 4°C (39°F). The month experiences around 72 mm (2.8 inches) of precipitation over approximately 9 days, accompanied by a humidity level of 76%. In contrast, November presents milder conditions, featuring temperatures that fluctuate from a minimum of 1°C (34°F) to a pleasant maximum of 21°C (71°F), with an average of 11°C (52°F). This month has increased precipitation at 102 mm (4.0 inches) over about 13 days and a slightly higher humidity level of 80%. For more insights, you can check Fuji weather in November.

In January, the weather is generally colder than in December, with average temperatures ranging from a minimum of -7°C (20°F) to a maximum of 17°C (62°F), compared to December's range of -3°C (27°F) to 20°C (67°F). While both months experience significant humidity, January's humidity sits at 76%, slightly lower than December's 78%. Precipitation also differs slightly, with January receiving 72 mm (2.8 in) over 9 days, while December sees 88 mm (3.5 in) over 11 days. For more detailed insights on December weather, you can check out Fuji weather in December.

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Conclusion: What to Expect From January Weather in Fuji

As January settles in, Fuji experiences a distinct shift in weather, characterized by cooler temperatures and increased humidity. Unlike the warmer months, where average highs soar, January's maximums hover around a mild 17°C (62°F), creating a brisk atmosphere perfect for enjoying the winter landscape. With humidity levels reaching 76% and nearly a third of the month seeing precipitation, the region transforms, offering a unique contrast to Fuji's typically warmer seasons. This wet and chilly climate not only enhances the scenic beauty but also sets the stage for a tranquil retreat, perfect for those seeking a serene winter escape. For more insights on how Fuji's weather varies throughout the year, be sure to explore Fuji Climate.