January Weather in Imabari-shi, Japan

Last updated: August 21, 2025

January in Imabari-shi, Japan, presents a brisk winter climate, with temperatures ranging from a chilly -3°C (27°F) at night to a mild 14°C (58°F) during the day. The average temperature hovers around 6°C (42°F), providing a refreshing atmosphere. Over the month, residents and visitors can expect approximately 58 mm (2.3 in) of precipitation, falling on about 9 days, contributing to the region's lush winter landscape. The humidity level stays relatively high at 74%, adding to the crisp air. Overall, January offers a unique blend of cold and moisture, perfect for those looking to experience the serene beauty of winter in Japan.

January Temperature in Imabari-shi

In Imabari-shi, Japan, January showcases a cold yet gradually warming landscape, with temperatures ranging from a chilly -3°C (27°F) at night to a mild 14°C (58°F) during the day. This month serves as a bridge between winter's starkness and the impending arrival of spring, maintaining an average of 6°C (42°F). As February approaches, a subtle shift occurs; the minimum temperature slightly rises to -2°C (29°F), while daytime highs can reach 17°C (62°F), hinting at the warmer days ahead. By March, the transition intensifies with temperatures climbing further into the 1°C (34°F) minimum and a pleasing 18°C (65°F) maximum, setting the stage for the vibrant blooms of spring that follow. Overall, January acts as a pivotal moment in the seasonal cycle, marking the slow and steady march toward warmer weather.

January Weather in Imabari-shi: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Imabari-shi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Imabari-shi, 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).
JanFebMarAprMayJunJulAugSepOctNovDec424349566470778075665646
Data source: Temperature data for Imabari-shi generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Imabari-shi

January in Imabari-shi, Japan, marks a relatively dry start to the year, with precipitation amounting to just 58 mm (2.3 in) over 9 days of rain. This sets the stage for a gradual increase in rainfall as the months progress; by February, the precipitation rises to 82 mm (3.2 in), and continues to climb significantly through the spring and summer months. March sees an increase to 126 mm (5.0 in), while April and May further elevate the totals, peaking at 149 mm (5.8 in). The rainy season truly arrives in July, where precipitation skyrockets to 360 mm (14.2 in) across 19 days, highlighting a marked shift in the climate dynamics of the region. This trend of rising precipitation continues into the fall, with September and October recording substantial rainfall. By contrast, November and December see a return to drier conditions, but overall, January acts as a quiet prelude to the wetter months ahead.

January Precipitation Trends in Imabari-shi

The chart displays monthly precipitation patterns in Imabari-shi, 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 Imabari-shi, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec58831261371491953601812222326273
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Imabari-shi

In January, Imabari-shi, Japan experiences a notable humidity level of 74%, setting the stage for the region's seasonal patterns. As winter progresses into February and March, humidity dips slightly to 70%, hinting at a brief respite before spring arrives. However, as April blooms, humidity rises to 76%, signaling the onset of warmer months. This upward trend continues, peaking in the summer with July and August displaying humidity levels of 91% and 88%, respectively. As the year winds down, the humidity gradually decreases, ending in December at 77%, but remains elevated compared to the winter months. Overall, the data reveals a clear trend of increasing humidity from winter to summer, followed by a gentle decline into autumn.

January Average Humidity in Imabari-shi

This chart illustrates the average monthly humidity levels in Imabari-shi, 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 Imabari-shi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%70%70%76%83%86%91%88%85%82%79%77%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Imabari-shi

In January, Imabari-shi experiences a moderate UV Index of 4, allowing for a burn time of 30 minutes with appropriate sun protection. As the month progresses into February, the UV Index slightly increases to 5, yet the burn time remains the same. This marks the beginning of a noticeable trend as spring approaches, with March seeing a significant jump to a very high UV Index of 8, where the burn time decreases to just 15 minutes. This upward trend continues through April and May, peaking at an extreme UV Index of 11 in both May and June, demanding even more vigilance during sun exposure. The intensity continues through the hot summer months of July and August, maintaining the highest levels of 12. As autumn arrives in September, the UV Index begins to lower, settling at 10 and gradually decreasing as the year closes with a return to a 4 in December. These fluctuations highlight the importance of adapting sun safety measures throughout the year in Imabari-shi. For a detailed look at UV variations, visit Imabari-shi UV Index.

Maximum UV Index Levels in Imabari-shi for January

The chart shows the monthly maximum UV Index (UVI) for Imabari-shi 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 Imabari-shi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111121210764
Data source: Imabari-shi 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 Imabari-shi

In January, Imabari-shi, Japan, welcomes the year with a modest 189 hours of sunshine, setting a cool tone for winter. As the months progress, the sun begins to shine more brightly, with a noticeable surge in February to 233 hours. The warmth continues to build through spring, peaking in April and May at 286 and 305 hours, respectively. By mid-summer in August, the region basks in its sunniest month at an impressive 313 hours. However, as autumn arrives, the days grow shorter, gradually tapering off to 265 hours in September and further to 226 hours by December. Overall, the sunshine trends in Imabari-shi illustrate a vibrant journey from winter's restraint to the abundant light of summer, before giving way to the serene glow of autumn.

Monthly Sunshine Duration in Imabari-shi: January Highlighted

The January sunshine duration represents the total number of hours Imabari-shi 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.
JanFebMarAprMayJunJulAugSepOctNovDec189h233h271h286h305h288h286h313h265h257h242h226h
Data source: Imabari-shi January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Imabari-shi During January

In Imabari-shi, Japan, January boasts a 44% chance of sunny weather, making it a vibrant start to the year. This percentage aligns with the sunny spells experienced in April, while February nudges slightly higher at 50%, hinting at a gradual increase in sunshine as winter transitions into spring. Interestingly, the likelihood of sunny days dips sharply during the summer months, with the chance plummeting to around 23% in June and 25% in July. As the year progresses into autumn, sunny days begin to bounce back, peaking at 55% in October, a stark contrast to the winter months. This pattern illustrates that while January enjoys a fair share of sunshine, the transition into spring is marked by a slight increase, ultimately leading to brighter days in the fall.

Percentage of Sunny Days in January in Imabari-shi

The chart illustrates the percentage of sunny days in Imabari-shi 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 Imabari-shi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%50%39%44%30%23%25%29%30%55%51%53%
Data source: Imabari-shi January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Imabari-shi in January

In January, Imabari-shi, Japan, enjoys around 10 hours of daylight, a trend that continues into February. As spring approaches in March, days begin to lengthen, offering 11 hours of sunlight, and this increase continues through April and May with 13 hours each. Summer brings the longest days, peaking at 14 hours in June and July, before gradually tapering off as the year progresses. By August, daylight diminishes to 13 hours, and the descent into autumn sees it drop to 12 hours in September and further down to 10 hours by November. The year closes with December, where daylight is at its shortest with just 9 hours, creating a clear seasonal rhythm in Imabari-shi's sunlight duration throughout the year.

Average Daylight Hours in Imabari-shi for January

The chart illustrates the variation in daylight duration in Imabari-shi throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 8m10h 56m11h 58m13h 1m13h 55m14h 22m14h 8m13h 22m12h 21m11h 18m10h 23m9h 54m
Data source: Imabari-shi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Imabari-shi

In January, Imabari-shi, Japan, experiences an average wind speed of 3.9 m/s (9 mph), making it one of the breezier months of the year. This gusty start transitions into February, where the winds pick up slightly to 4.3 m/s (10 mph), indicating a peak in winter’s chill. However, as spring approaches, wind speeds begin to taper off, dropping to 3.2 m/s (7 mph) in March and further declining to 3.1 m/s (7 mph) by April and May. The summer months bring even calmer conditions, with wind speeds plummeting to as low as 2.0 m/s (5 mph) in June. As the seasons shift back towards winter, a slight resurgence occurs in November with 3.6 m/s (8 mph), and December again experiences brisk winds at 4.2 m/s (9 mph). Overall, January sets the tone for a progressively less windy season, before a gradual return to robust breezes as the year concludes.

Average January Wind Speed in Imabari-shi

The chart displays monthly wind speed patterns in Imabari-shi, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.9 m/s4.33.23.13.12.02.42.62.82.73.64.2
Data source: Imabari-shi January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Imabari-shi Compares to Other Months

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

In January, temperatures in Imabari typically range from a minimum of -3°C (27°F) to a maximum of 14°C (58°F), with an average temperature of 6°C (42°F). This month experiences about 58 mm (2.3 inches) of precipitation over 9 days and maintains a relatively high humidity level of 74%.

In contrast, February sees slightly milder temperatures, with a minimum of -2°C (29°F) and a maximum of 17°C (62°F), while the average remains consistent at 6°C (43°F). However, February records more precipitation, totaling 82 mm (3.2 inches) across 10 days, with humidity dropping slightly to 70%. For a more detailed look at February weather in Imabari, check out Imabari-shi weather in February.

In January, temperatures range from a chilly -3°C (27°F) at night to a mild 14°C (58°F) during the day, with an average temperature of 6°C (42°F). The month experiences around 58 mm (2.3 inches) of precipitation over 9 days, contributing to a relatively high humidity level of 74%.

In contrast, March offers a more temperate climate with nighttime lows of 1°C (34°F) and daytime highs reaching up to 18°C (65°F), averaging 10°C (49°F). Precipitation increases to 126 mm (5.0 inches) across 12 days, while humidity remains slightly lower at 70%. For a more detailed look at March weather, visit Imabari-shi weather in March.

January weather is characterized by colder temperatures, with minimums dropping to -3°C (27°F) and an average of 6°C (42°F), while the maximum reaches only 14°C (58°F). The month sees a total precipitation of 58 mm (2.3 in) across 9 days, accompanied by a humidity level of 74%. In contrast, April brings a notable shift, with temperatures ranging from a minimum of 4°C (39°F) to an average of 13°C (56°F) and maximums reaching up to 22°C (72°F). This month experiences significantly higher precipitation, totaling 137 mm (5.4 in) over the same number of rainy days, and a slightly increased humidity of 76%. For more detailed information, you can visit Imabari-shi weather in April.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 14°C (58°F), and an average of 6°C (42°F). The month sees about 58 mm (2.3 in) of precipitation over approximately 9 days, with humidity levels around 74%. In contrast, May brings significantly warmer temperatures, with a minimum of 9°C (48°F), an average of 18°C (64°F), and a maximum of 26°C (78°F). While May has higher precipitation at 149 mm (5.8 in) over 11 days, the humidity also increases to 82%. This transition from the cold of January to the warmth of May can be quite apparent in the weather patterns, making it a pleasant time to experience the outdoors. For more details, check out Imabari-shi weather in May.

January and June present stark contrasts in weather. In January, temperatures range from a chilly -3°C (27°F) at night to a mild 14°C (58°F) during the day, with an average of 6°C (42°F). The month sees around 58 mm (2.3 in) of precipitation over about 9 days, and humidity levels settle at 74%. In contrast, June warms up significantly, with temperatures starting at a comfortable 15°C (59°F) and peaking at 28°C (82°F), leading to an average of 21°C (70°F). However, this month also brings heavier rainfall, accumulating to 195 mm (7.7 in) over approximately 15 days, along with higher humidity at 86%. To learn more about the June weather in this region, visit Imabari-shi weather in June.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 14°C (58°F) and an average temperature around 6°C (42°F). The month sees a moderate amount of precipitation, totaling 58 mm (2.3 in) over about 9 rainy days, coupled with a humidity level of 74%. In stark contrast, July offers much warmer conditions, with temperatures ranging from a pleasant 20°C (67°F) to a high of 31°C (88°F) and an average of 25°C (78°F). However, it also brings significantly heavier rainfall, with 360 mm (14.2 in) falling over 19 days and a higher humidity level of 91%. For a closer look at July weather, you can visit Imabari-shi weather in July.

The weather in January and August presents a stark contrast in Imabari-shi. January experiences cooler temperatures, with a minimum of -3°C (27°F) and an average of 6°C (42°F), while August boasts much warmer conditions, featuring a minimum of 20°C (68°F) and an average of 27°C (81°F). Precipitation is more prevalent in August too, with 181 mm (7.1 in) over 13 days, compared to January's 58 mm (2.3 in) across 9 days. Additionally, humidity levels rise in August, reaching 88%, compared to January's 74%. For more specific details about the climate during this month, you can check the link: Imabari-shi weather in August.

January and September present remarkably contrasting weather conditions. In January, temperatures range from a chilly -3°C (27°F) to a mild 14°C (58°F), with an average of 6°C (42°F). The month experiences 58 mm (2.3 in) of precipitation spread over 9 days, coupled with a humidity level of 74%. In stark contrast, September boasts much warmer temperatures, with a minimum of 17°C (63°F) and a maximum reaching up to 31°C (88°F), averaging 24°C (75°F). The precipitation significantly increases to 222 mm (8.7 in), occurring over 15 days, while humidity rises to 85%. For more detailed information, you can visit Imabari-shi weather in September.

In January, the weather in Imabari-shi is notably cooler, with average temperatures ranging from a low of -3°C (27°F) to a high of 14°C (58°F). The month experiences about 58 mm (2.3 in) of precipitation over 9 days, along with a humidity level of 74%. In contrast, October offers a much warmer climate, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 28°C (83°F). This month is also significantly wetter, receiving approximately 232 mm (9.2 in) of rainfall over 11 days, accompanied by a humidity level of 82%. For more detailed information, you can visit Imabari-shi weather in October.

In comparing the weather between January and November, we see a significant difference in temperatures. January experiences a chilly range from a minimum of -3°C (27°F) to a maximum of 14°C (58°F), with an average of 6°C (42°F). In contrast, November is much milder, featuring a minimum of 4°C (40°F) and reaching up to 23°C (73°F), with an average temperature of 13°C (56°F). Both months see a similar amount of precipitation, with January receiving 58 mm (2.3 in) over 9 days, and November slightly edging out with 62 mm (2.4 in) over just 8 days. Humidity levels are also higher in November, averaging 79% compared to January's 74%. For more detailed information on November weather, you can visit Imabari-shi weather in November.

January and December present distinct weather characteristics. In January, temperatures dip further, with a minimum of -3°C (27°F) and an average of 6°C (42°F), while December enjoys milder conditions, with a minimum of 0°C (33°F) and an average of 8°C (47°F). Precipitation is slightly less in January at 58 mm (2.3 in) over 9 days compared to December’s 73 mm (2.9 in) over 10 days. Humidity is also slightly lower in January at 74%, compared to December's 77%. For a more detailed view of December weather, you can check Imabari-shi weather in December.

Compare Imabari-shi's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Imabari-shi

As winter graces Imabari-shi in January, the weather presents a marked contrast to other months of the year. With temperatures dipping significantly, residents experience a chill, making the average day feel notably brisk. The increased humidity, coupled with regular precipitation, adds to the wintry atmosphere, leading to a cozy indoor vibe. While January may not boast the warm sun of spring or the vibrant colors of autumn, it offers a serene stillness that invites reflection and warmth by the hearth. For a deeper dive into what's typical throughout the seasons, explore the Imabari-shi Climate details.