January Weather in Fukushima, Japan

Last updated: August 21, 2025

January in Fukushima, Japan is characterized by a chilly climate, with average temperatures hovering around -1°C (31°F). The month experiences a maximum of 10°C (50°F) and a minimum plunge to -13°C (9°F), showcasing significant temperature variation. Precipitation is notable, accumulating to 62 mm (2.4 in) over 13 days, resulting in a humid atmosphere with a humidity level of 76%. This blend of cool temperatures and frequent precipitation creates a uniquely brisk winter ambiance, inviting both introspection and exploration in this scenic region.

January Temperature in Fukushima

In Fukushima, Japan, January brings a chilly embrace, with temperatures dipping as low as -13°C (9°F) at night and averaging -1°C (31°F) during the day. This month marks the coldest period of the year, as temperatures gradually begin to rise toward spring. The maximum daytime reading reaches a mild 10°C (50°F), hinting at the warmth to come. As the calendar flips to February, a slight uptick in temperatures occurs, signaling the slow transition toward more temperate conditions. The contrast between the biting cold nights and the temperate days creates a dynamic winter atmosphere, setting the stage for the blossoming warmth of spring just around the corner. This gradual shift highlights the region's distinct seasonal variations, drawing attention to Fukushima's remarkable climate diversity throughout the year.

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

The chart illustrates January temperature patterns in Fukushima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fukushima, 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).
JanFebMarAprMayJunJulAugSepOctNovDec313341496066737668574736
Data source: Temperature data for Fukushima 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 Fukushima

January in Fukushima, Japan, welcomes the new year with a moderate amount of precipitation, averaging 62 mm (2.4 in) over 13 days. As the winter chills begin to give way, this month typically boasts slightly more rainfall than February, which sees a drop to 52 mm (2.0 in). The precipitation patterns throughout the year reveal a distinct upward trend, peaking sharply in the summer months, particularly July, where the rainfall skyrockets to 248 mm (9.7 in) over 20 days. This contrast highlights the region's transition from the relatively dry winter months to a lush and often very wet summer season. Over the months following January, precipitation levels tend to fluctuate, but it is during the warmer months that Fukushima truly comes alive with rain, setting the stage for its vibrant natural beauty.

January Precipitation Trends in Fukushima

The chart displays monthly precipitation patterns in Fukushima, 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 Fukushima, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec62521121061131092481691542073868
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Fukushima

In January, Fukushima experiences a relatively high humidity level of 76%, setting the tone for a winter that transitions into a more humid spring. As February approaches, humidity slightly drops to 75%, but it begins to rise again in March with 72%, indicating some variability during these months. Come April, humidity bounces back to 73%, followed by a pronounced increase during the late spring and early summer months, peaking in July at a sweltering 92%. In contrast, the summer's heights give way to a gradual decline in humidity starting in August at 90%, and down to 84% by September. This trend continues into autumn, where humidity levels stabilize around 80% in October and settle at 77% through the end of the year, with November and December maintaining a consistent climate. Overall, January acts as a bridge between drier winter conditions and the lush, moist environment that follows.

January Average Humidity in Fukushima

This chart illustrates the average monthly humidity levels in Fukushima, 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 Fukushima is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%72%73%80%87%93%90%84%80%77%77%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Fukushima

In January, Fukushima experiences a moderate UV Index of 3, indicating a safe level of sun exposure with a burn time of 30 minutes. As the months progress into February, the UV Index rises to 5, still maintaining a moderate risk but hinting at the approaching spring season. By March, UV levels jump to 7, categorized as high, where the burn time decreases to 25 minutes, signaling the need for increased sun protection. This upward trend culminates in April and May, where the Index soars to 9 and 10 respectively, presenting very high exposure risks and reducing burn time to just 15 minutes. The peak arrives in June through August, with an extreme UV Index of 11, necessitating vigilant sun safety practices with a mere 10-minute burn time. As summer wanes into September, the Index drops to 9, followed by a fall to 6 in October, signaling the transition to cooler months. November and December revert to a moderate level of 5 and 3, respectively, restoring longer burn times of 30 minutes. Watching these trends can help you stay sun-safe all year round. For more information on UV levels, visit Fukushima UV Index.

Maximum UV Index Levels in Fukushima for January

The chart shows the monthly maximum UV Index (UVI) for Fukushima 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 Fukushima typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111119653
Data source: Fukushima 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 Fukushima

In Fukushima, Japan, January welcomes the year with 167 hours of sunshine, but as winter transitions to spring, the days become noticeably brighter, peaking at 272 hours in April. This upward trend in sunshine hours continues through May, where the sun graces the region for a delightful 288 hours. As the warm summer months roll in, sunshine hours remain abundant, with July and August offering 252 and 280 hours, respectively. However, as autumn approaches, a gradual decline is observed, with hours of sunlight tapering off, bringing 221 hours in November and ending the year with 203 hours in December. Overall, the data reflects a vibrant swing in sunshine, showcasing the seasonal rhythms that define Fukushima’s unique climate.

Monthly Sunshine Duration in Fukushima: January Highlighted

The January sunshine duration represents the total number of hours Fukushima 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.
JanFebMarAprMayJunJulAugSepOctNovDec167h218h259h272h288h275h252h280h237h205h221h203h
Data source: Fukushima January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Fukushima During January

In Fukushima, Japan, January brings a 36% chance of sunny weather, making it one of the colder months with limited sunshine. Interestingly, this is slightly lower than both November and December, which see chances of 50% and 39% respectively, suggesting a gradual decline in sunny days as winter deepens. Heading into February, the likelihood of clear skies rises to 47%, hinting at a transition towards brighter days as the region moves further away from the winter solstice. This trend underscores a notable peak in sunlit days around February, contrasting sharply with the dreaded cloudier months ahead, notably June and July, which witness the lowest probabilities of 20% and 23% respectively. Overall, while January may not be the sunniest month, it sets the stage for a gradual increase in sunshine leading into the spring.

Percentage of Sunny Days in January in Fukushima

The chart illustrates the percentage of sunny days in Fukushima 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 Fukushima experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%47%33%43%29%20%23%26%25%36%50%39%
Data source: Fukushima January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Fukushima in January

In Fukushima, Japan, January marks the beginning of the year with 9 hours of daylight, gradually paving the way for longer days as winter transitions to spring. By February, daylight increases to 10 hours, hinting at the longer, sunnier days ahead. This upward trend continues, with daylight reaching 11 hours in March and peaking at 14 hours by May and throughout June and July. After an extended period of ample light, the days start to shorten again in August, settling to 13 hours, before gradually tapering back to 10 hours in November and returning to the wintry 9 hours of daylight in December. This rhythm of daylight not only shapes the seasons but also imbues each month with its character, from the cozy, shorter days of winter to the vibrant, sun-soaked hours of summer.

Average Daylight Hours in Fukushima for January

The chart illustrates the variation in daylight duration in Fukushima throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 51m10h 46m11h 57m13h 10m14h 12m14h 43m14h 27m13h 33m12h 23m11h 11m10h 7m9h 34m
Data source: Fukushima daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Fukushima

In January, the wind in Fukushima, Japan, gently whispers with an average speed of 2.7 m/s (6 mph), setting a tranquil tone at the start of the year. This mild breeze marks the beginning of a gradual increase in wind speeds, peaking in February at 3.6 m/s (8 mph) before settling back down to consistent levels in the following months. Interestingly, the transition into spring sees a slight dip back to 2.9 m/s (7 mph) in both March and April, while the summer months witness the softest breezes, dropping to 1.6 m/s (4 mph) by July. As autumn approaches, the winds begin to pick up again, ending the year on a somewhat stable note with December returning to 2.9 m/s (6 mph). This trend reveals a dynamic yet soothing rhythm of wind throughout the colder months, inviting reflection on the changing seasons.

Average January Wind Speed in Fukushima

The chart displays monthly wind speed patterns in Fukushima, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.7 m/s3.62.92.92.51.81.62.01.92.22.32.9
Data source: Fukushima January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Fukushima Compares to Other Months

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

In January, the weather presents a colder profile with minimum temperatures dipping to -13°C (9°F) and an average hovering around -1°C (31°F). It experiences more precipitation than February, with about 62 mm (2.4 in) falling over 13 days, accompanied by a humidity level of 76%. In contrast, February enjoys slightly milder conditions with minimum temperatures around -10°C (14°F) and an average temperature of 1°C (33°F), reaching a maximum of 16°C (60°F). Precipitation decreases to 52 mm (2.0 in) over 12 days, and the humidity remains similar at 75%. For more details about February's weather, you can check Fukushima weather in February.

January weather tends to be quite cold in comparison to March, with minimum temperatures dipping to -13°C (9°F) and an average around -1°C (31°F). It features a maximum temperature of just 10°C (50°F) and receives about 62 mm (2.4 in) of precipitation over 13 days, coupled with a relatively high humidity of 76%. In contrast, March brings a noticeable transition, with minimum temperatures rising to -7°C (19°F) and an average of 5°C (41°F). The maximum temperature can reach a more comfortable 21°C (69°F), though March sees an increase in total precipitation to 112 mm (4.4 in), also over 13 days, but with slightly lower humidity at 72%. For detailed insights on Fukushima's weather during this month, visit Fukushima weather in March.

January weather features colder temperatures, with averages around -1°C (31°F) and a maximum reaching only 10°C (50°F). Precipitation is relatively low at 62 mm (2.4 in), occurring on about 13 days, while humidity remains high at 76%. In contrast, April showcases a significant warming trend, with average temperatures climbing to 10°C (50°F) and reaching a maximum of 27°C (80°F). Although April experiences higher total precipitation at 106 mm (4.2 in) over the same number of days, the humidity slightly decreases to 73%. For a closer look at the specifics of April weather, check out Fukushima weather in April.

January and May present contrasting weather patterns. In January, temperatures typically range from a chilling minimum of -13°C (9°F) to a maximum of 10°C (50°F), with an average of -1°C (31°F). Precipitation is relatively moderate, at 62 mm (2.4 in), occurring over 13 days, and humidity hovers around 76%. Conversely, May features a much warmer climate, with temperatures fluctuating between a minimum of 4°C (39°F) and a peak of 31°C (88°F), averaging 16°C (60°F). The month also sees increased precipitation, totaling 113 mm (4.5 in) over 14 days, and a slightly higher humidity level of 80%. This shift highlights the transition from the depths of winter to the heart of spring. For a detailed view of May's climate, visit Fukushima weather in May.

January and June exhibit stark contrasts in weather conditions. In January, temperatures are cold, ranging from a minimum of -13°C (9°F) to a maximum of 10°C (50°F), with an average of -1°C (31°F). The month sees significant precipitation, totaling 62 mm (2.4 inches) over 13 days, and the humidity averages 76%. In sharp contrast, June brings much warmer temperatures, with a minimum of 8°C (46°F) and a maximum reaching up to 31°C (89°F), averaging 19°C (66°F). Although June experiences more precipitation at 109 mm (4.3 inches) over 14 days, the humidity increases to 87%, creating a more tropical atmosphere. For more details, you can check out the Fukushima weather in June.

January and July in Fukushima present stark contrasts in weather conditions. January typically sees temperatures ranging from a chilly -13°C (9°F) to a mild 10°C (50°F) with an average of -1°C (31°F), whereas July brings much warmer weather, with temperatures fluctuating between 15°C (59°F) and a high of 34°C (93°F), averaging around 23°C (74°F). Precipitation patterns also differ significantly; January receives about 62 mm (2.4 in) of rain over 13 days, while July experiences a much wetter month with 248 mm (9.7 in) over 20 days. Additionally, the humidity is considerably higher in July at 92%, compared to January’s 76%. To learn more about the weather specifics in July, you can visit Fukushima weather in July.

In January, the weather is characterized by chilly temperatures, with a minimum of -13°C (9°F) and an average of -1°C (31°F), peaking at a maximum of 10°C (50°F). The month sees about 62 mm (2.4 in) of precipitation spread over 13 days, accompanied by a humidity level of 76%. Conversely, August brings a dramatic shift, featuring much warmer temperatures ranging from a minimum of 14°C (57°F) to a scorching average of 24°C (76°F), with highs reaching 35°C (95°F). The month experiences significantly more precipitation at 169 mm (6.7 in) over 19 days, and humidity rises to 90%. For more details on the warm and humid conditions typical of August, you can visit Fukushima weather in August.

January and September showcase stark contrasts in weather, reflecting the shift from winter to autumn. In January, temperatures plunge to a minimum of -13°C (9°F) and only reach a maximum of 10°C (50°F), with an average of -1°C (31°F). The month experiences 62 mm (2.4 in) of precipitation over 13 days, accompanied by relatively high humidity at 76%. In contrast, September boasts a significantly warmer climate, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 33°C (92°F) and an average of 20°C (68°F). However, it is wetter, with precipitation totaling 154 mm (6.1 in) over 14 days, and slightly higher humidity at 84%. For more detailed information, you can check Fukushima weather in September.

In January, the weather is considerably colder, with temperatures ranging from a biting minimum of -13°C (9°F) to a maximum of only 10°C (50°F), along with significant humidity at 76%. The month sees about 62 mm (2.4 in) of precipitation over 13 days, making it a challenging time for outdoor activities. In contrast, October presents a much milder climate, with temperatures beginning at a comfortable 2°C (36°F) and peaking at 27°C (82°F), averaging around 14°C (58°F). This month also experiences higher precipitation, totaling 207 mm (8.2 in) over 12 days, and slightly increased humidity at 80%. For a detailed look at the weather during this vibrant autumn month, visit Fukushima weather in October.

In January, the weather is significantly colder than in November, with average temperatures hovering around -1°C (31°F) compared to a milder average of 8°C (47°F) in November. January experiences more extreme lows, with temperatures dropping to a minimum of -13°C (9°F), while November only sees lows of -3°C (27°F). Precipitation is slightly higher in January at 62 mm (2.4 in) over 13 days, compared to November's 38 mm (1.5 in) across 8 days. Interestingly, humidity levels remain comparable, with January averaging 76% and November slightly higher at 77%. For more specific details on November weather, you can check out Fukushima weather in November.

When comparing the weather in January to that of December, January tends to be colder, with average temperatures hovering around -1°C (31°F), whereas December experiences a slightly milder average of 2°C (36°F). The minimum temperature in January drops to -13°C (9°F), in contrast to December’s minimum of -7°C (20°F), indicating that January is significantly chillier. Precipitation levels are similar, with January receiving 62 mm (2.4 in) over 13 days, while December sees a little more at 68 mm (2.7 in) across 15 days. Humidity remains relatively consistent, with January at 76% and December slightly higher at 77%. For a more detailed look at the conditions in December, you can check out Fukushima weather in December.

Compare Fukushima's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Fukushima

As January weaves its chilly tapestry over Fukushima, the weather starkly contrasts with the milder months that precede and follow it. With temperatures averaging around -1°C, the month embraces a notable chill that can plunge to lows of -13°C, inviting a sharp reminder of winter's hold. Alongside persistent precipitation, accumulating 62 mm over approximately 13 days, January's higher humidity levels are a stark difference, often making it feel even colder than it is. This is a time when the landscape is transformed, showcasing a serene, wintry beauty that sets January apart from the more temperate seasons. For a deeper understanding of how these conditions fit into Fukushima's broader climate, visit Fukushima Climate.