January Weather in Ishikari, Japan

Last updated: August 21, 2025

January in Ishikari, Japan presents a chilly winter landscape, with average temperatures hovering around -3°C (26°F). The month experiences maximum highs of 6°C (42°F) and dips to a brisk minimum of -13°C (8°F), ensuring a frosty climate. Rain and snow contribute to a total precipitation amount of 74 mm (2.9 in), falling over 19 days, making the air feel even more humid at 84%. This combination of cold and moisture encapsulates the essence of a Japanese winter, inviting residents and visitors alike to embrace the seasonal beauty.

January Temperature in Ishikari

In Ishikari, Japan, January is characterized by its chilly temperatures, with minimums dipping as low as -13°C (8°F) and an average hovering around -3°C (26°F). This month represents the heart of winter, featuring a maximum of 6°C (42°F) that brings only brief moments of warmth. As winter unfolds, the transition into February continues this cold trend, showing only a slight increase in temperatures. However, notable change begins in March, when the mercury rises, with average temperatures finally crossing into positive territory. This gradual warming trend sets the stage for the blossoming spring, highlighting the stark differences between January's icy grip and the upcoming milder months.

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

The chart illustrates January temperature patterns in Ishikari, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ishikari, 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).
JanFebMarAprMayJunJulAugSepOctNovDec262734435461697166564431
Data source: Temperature data for Ishikari 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 Ishikari

In January, Ishikari experiences a moderate level of rainfall, with a total precipitation of 74 mm (2.9 in) spread over 19 days. This sets the stage for a wet winter, as the precipitation slightly increases in February with 84 mm (3.3 in) and further peaks in the following months, showcasing a trend of escalating rainfall into the spring. Notably, March sees a dip with 80 mm (3.2 in) over fewer days, hinting at a potential transition towards drier conditions before the heavier spring rains take over. As we progress into April and May, precipitation remains relatively steady, before surging dramatically in August with a striking 182 mm (7.2 in), making it one of the wettest months of the year. This pattern illustrates Ishikari's unique climatic rhythm, where winter's snowfall gives way to a dynamic rainy season, providing lush landscapes and thriving ecosystems.

January Precipitation Trends in Ishikari

The chart displays monthly precipitation patterns in Ishikari, 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 Ishikari, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7484807389103104182103129153123
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Ishikari

In January, Ishikari, Japan experiences high humidity levels averaging around 84%, setting the tone for a winter season marked by moisture in the air. As the months progress, a slight decrease is observed, with February dipping to 83% and March further reducing to 81%. This trend of lower humidity continues into April, before a notable rise begins in May, when humidity spikes to 86%. The summer months bring a surge, with July and August reaching a peak of 93% and 95%, respectively, creating a notably humid atmosphere. Following this summer peak, September sees a decline to 88%, and the humidity begins to stabilize into the autumn months, ending the year at more moderate levels of 80% in December. Overall, Ishikari's humidity showcases a clear seasonal cycle, characterized by high winter levels, a mid-year peak during the summer, and a gradual tapering off as autumn sets in.

January Average Humidity in Ishikari

This chart illustrates the average monthly humidity levels in Ishikari, 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 Ishikari is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%81%81%86%87%93%95%88%83%79%80%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Ishikari

In Ishikari, Japan, January brings a low UV Index of 2, indicating minimal risk for sunburn with a burn time of 45 minutes. As the months progress, the UV Index gradually rises, peaking at 10 in August, which demands heightened caution due to the very high exposure category and a significantly reduced safe burn time of just 15 minutes. Interestingly, the transition from winter to summer showcases a notable shift: while January and December offer lower UV values, the intensity climbs sharply from March onwards, highlighting the importance of sun protection during the warmer months. This reflects a clear seasonal trend in UV exposure that residents and visitors alike should heed. For a detailed comparison throughout the year, check the Ishikari UV Index.

Maximum UV Index Levels in Ishikari for January

The chart shows the monthly maximum UV Index (UVI) for Ishikari 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 Ishikari typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2367999108532
Data source: Ishikari 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 Ishikari

In Ishikari, Japan, the month of January typically welcomes the year with 133 hours of sunshine, a stark contrast to the illuminative peak seen in July, which boasts 321 hours. As winter bows to spring, the days gradually lengthen, revealing a striking upward trend in sunlight from February’s 189 hours to May’s 309 hours, painting a vivid picture of the burgeoning warmth and life. However, as summer transitions to autumn, the sunshine hours begin to gently decline, with October bringing 234 hours, followed by a notable drop to 177 hours in November. This cyclical dance of light not only encapsulates the changing seasons but also beckons nature’s vibrant transformations throughout the year.

Monthly Sunshine Duration in Ishikari: January Highlighted

The January sunshine duration represents the total number of hours Ishikari 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.
JanFebMarAprMayJunJulAugSepOctNovDec133h189h243h287h309h297h321h292h269h234h177h163h
Data source: Ishikari January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ishikari During January

In Ishikari, Japan, January presents a modest 30% chance of sunny weather, setting the tone for the winter months. As the year progresses, the likelihood of sunshine begins to rise noticeably, with February dipping slightly to 24% before picking up again in March at 39%. The trend continues upward, peaking in June at an encouraging 47%, showcasing a transition into the sunnier summer months. Interestingly, while the chance of sun fluctuates in the following months, it remains relatively stable, hovering around the mid-30% range during the fall. This consistent variability highlights Ishikari's delightful blend of winter gloom and summer brightness, making it a unique destination throughout the year.

Percentage of Sunny Days in January in Ishikari

The chart illustrates the percentage of sunny days in Ishikari 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 Ishikari experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%24%39%43%27%47%45%35%43%35%38%34%
Data source: Ishikari January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ishikari in January

In Ishikari, Japan, January signals the beginning of a gradual increase in daylight, with 9 hours of sunlight illuminating the winter landscape. As the month fades into February, the days grow longer, reaching 10 hours. This upward trend continues into March with 11 hours and April, when daylight stretches to 13 hours, heralding the arrival of spring. By May and June, residents bask in 14 and 15 hours of sunlight respectively, showcasing the peak of daylight during the year. As summer wanes in July and August, daylight slightly diminishes to 14 and 13 hours, before transitioning into the cozy embrace of autumn. September sees 12 hours, followed by a further decline in October and November, where the hours drop back to 11 and 9. Finally, December mirrors January with just 9 hours of daylight, wrapping up the annual cycle of light in this northern locale. This rhythmic fluctuation not only highlights the changing seasons but also enriches the experience of life in Ishikari throughout the year.

Average Daylight Hours in Ishikari for January

The chart illustrates the variation in daylight duration in Ishikari throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 22m10h 29m11h 56m13h 24m14h 40m15h 18m14h 59m13h 53m12h 28m11h9h 42m9h 1m
Data source: Ishikari daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Ishikari

In Ishikari, Japan, the January winds come in strong, averaging 5.1 m/s (11 mph), matching February's blustery embrace as winter tightly grips the region. This steady gustiness sets the tone for the season, providing a dynamic contrast to the subsequent months, where wind speeds begin to dip in March to 4.2 m/s (9 mph) before stabilizing around 4.1 m/s (9 mph) in May. As summer approaches, the breezes soften further, falling to a gentle 3.3 m/s (7 mph) by June, highlighting a trend towards calmer conditions. However, as winter reawakens, wind speeds gradually increase once again, culminating in a return to 5.1 m/s (12 mph) in December. This rhythmic ebb and flow of wind throughout the year paints a vivid picture of Ishikari's seasonal transformations, marking a landscape where the wind continually shapes the atmosphere.

Average January Wind Speed in Ishikari

The chart displays monthly wind speed patterns in Ishikari, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.1 m/s5.14.24.64.13.33.53.53.74.15.05.1
Data source: Ishikari January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Ishikari Compares to Other Months

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

January and February weather in Ishikari exhibit some similarities but also notable differences. In January, temperatures range from a minimum of -13°C (8°F) to a maximum of 6°C (42°F), with an average temperature of -3°C (26°F). This month experiences 74 mm (2.9 in) of precipitation over 19 days, contributing to a relatively high humidity level of 84%. February features slightly milder conditions, with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 5°C (42°F) and an average of -3°C (27°F). However, it sees an increase in precipitation, totaling 84 mm (3.3 in) over 21 days and maintaining a similar humidity level of 83%. For more detailed information, you can check out Ishikari weather in February.

In January, the weather is significantly colder, with temperatures ranging from a minimum of -13°C (8°F) to a maximum of 6°C (42°F) and an average of -3°C (26°F). The month experiences high humidity at 84% and sees approximately 74 mm (2.9 in) of precipitation spread over 19 days. In contrast, March brings a gradual warming trend, with temperatures ranging from -8°C (18°F) to 14°C (57°F) and an average temperature of 1°C (35°F). Although March has slightly higher total precipitation at 80 mm (3.2 in) over 14 days, the humidity decreases slightly to 81%. For a deeper understanding of the weather patterns in March, you can check out this link: Ishikari weather in March.

January weather in Ishikari is characterized by its cold temperatures, with a minimum of -13°C (8°F) and an average of -3°C (26°F), reaching a maximum of 6°C (42°F). The month experiences significant precipitation, totaling 74 mm (2.9 in) over 19 days, and humidity levels are relatively high at 84%. In contrast, April brings a welcome transition with milder temperatures, ranging from a minimum of -2°C (28°F) to a maximum of 20°C (68°F), and an average of 6°C (43°F). While precipitation remains similar at 73 mm (2.9 in), it falls over just 11 days, resulting in slightly lower humidity at 81%. For more details on April weather, check out Ishikari weather in April.

In January, the weather is characterized by cold temperatures, with minimums dropping as low as -13°C (8°F) and an average around -3°C (26°F), while the maximum reaches only 6°C (42°F). This month also sees considerable precipitation, totaling 74 mm (2.9 in) over 19 days, and high humidity at 84%. In stark contrast, May brings a noticeable warming trend, with temperatures ranging from a minimum of 4°C (40°F) to an average of 12°C (54°F), peaking at 27°C (81°F). Though precipitation slightly increases to 89 mm (3.5 in), it occurs over fewer days—only 12—and the humidity is marginally higher at 86%. For more details about the weather in May, you can visit Ishikari weather in May.

In January, the weather in Ishikari is characterized by cold temperatures, with lows dipping to -13°C (8°F) and averaging around -3°C (26°F). The maximum temperature reaches a mild 6°C (42°F), but the high humidity of 84% can make the cold feel more biting. Precipitation occurs on 19 days, totaling 74 mm (2.9 in), which often falls as snow, contributing to a wintry landscape.

Conversely, June brings a significant transformation to Ishikari's climate. The temperature rises dramatically, with minimums of 8°C (47°F) and averages around 16°C (61°F), reaching highs of 24°C (76°F). Although June experiences more precipitation at 103 mm (4.1 in), it occurs over only 10 days, resulting in less frequent rain than in January. Humidity slightly increases to 87%, providing a lush, green environment typical of summer. For more detailed weather information, you can refer to Ishikari weather in June.

January and July present starkly contrasting weather conditions. January is characterized by cold temperatures, with averages hovering around -3°C (26°F) and reaching lows of -13°C (8°F). It also witnesses significant cloud cover, with frequent precipitation on about 19 days throughout the month, contributing to a high humidity level of 84%. In contrast, July boasts much milder weather, with average temperatures around 21°C (69°F) and highs peaking at 30°C (86°F). Although July experiences slightly higher overall precipitation, totaling 104 mm (4.1 in) over just 11 days, the humidity also rises, reaching 93%. For more detailed insights, check out Ishikari weather in July.

January and August weather in Ishikari present a stark contrast. In January, temperatures hover between a chilly -13°C (8°F) at night and a maximum of 6°C (42°F) during the day, with an average of -3°C (26°F). The month experiences significant humidity at 84% and receives 74 mm (2.9 in) of precipitation over 19 days. In sharp contrast, August brings much warmer conditions, featuring temperatures that range from a minimum of 15°C (59°F) to a pleasant maximum of 30°C (86°F), with an average of 22°C (71°F). The humidity rises to 95%, and although precipitation is higher at 182 mm (7.2 in), it occurs over fewer days—just 13. For more detailed information, you can check Ishikari weather in August.

January and September showcase stark contrasts in weather. In January, temperatures plummet, with a minimum of -13°C (8°F) and an average of -3°C (26°F), making it one of the coldest months of the year. This frigid period also brings 74 mm (2.9 in) of precipitation over 19 days, coupled with high humidity at 84%. In contrast, September experiences much milder temperatures, where the minimum rises to 10°C (49°F) and the average reaches 19°C (66°F), peaking at a warm 28°C (83°F). Despite having higher precipitation at 103 mm (4.0 in) over 13 days, the humidity remains high at 88%. For more details on what to expect, you can visit Ishikari weather in September.

January and October present stark contrasts in weather. January is characterized by frigid temperatures, with a minimum of -13°C (8°F) and an average of -3°C (26°F), while October enjoys much milder conditions, featuring a minimum of 4°C (40°F) and an average of 13°C (56°F). Precipitation is also more pronounced in October, totaling 129 mm (5.1 in) over 16 days compared to January's 74 mm (2.9 in) over 19 days. Despite October's higher precipitation, the humidity remains similar for both months at around 83-84%. For a more detailed look at October conditions, check out Ishikari weather in October.

January and November present strikingly different weather patterns. In January, the temperatures are quite frigid, with a minimum of -13°C (8°F) and an average of -3°C (26°F), while reaching a maximum of only 6°C (42°F). In contrast, November enjoys a milder climate, with temperatures ranging from a minimum of -3°C (26°F) to a comfortable maximum of 17°C (63°F) and an average of 6°C (44°F). Precipitation also differs significantly; January sees 74 mm (2.9 in) over 19 days, while November receives much more, with 153 mm (6.0 in) across 22 days. The humidity in January is higher at 84%, compared to November's 79%, making the winter month feel even colder. For a more detailed look at November weather, you can visit Ishikari weather in November.

When comparing January and December weather, January tends to be colder with average temperatures around -3°C (26°F), while December is slightly milder, averaging -1°C (31°F). In January, temperatures can drop to a minimum of -13°C (8°F) compared to December's low of -11°C (13°F). Additionally, January experiences less precipitation, totaling 74 mm (2.9 in) over 19 days, in contrast to December’s higher precipitation of 123 mm (4.8 in) spread across 27 days. The humidity remains relatively high in both months, with January at 84% and December at 80%. For more detailed information on December weather, you can refer to Ishikari weather in December.

Compare Ishikari's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Ishikari

As January settles over Ishikari, it brings a stark contrast to the rest of the year, enveloping the city in a chilly embrace with its average temperature hovering around -3°C. The persistent chill is accompanied by frequent precipitation, with nearly half the month marked by rain or snow, resulting in a humid atmosphere that can feel biting due to the high humidity levels. Clouds loom more often, casting gray skies that amplify the wintry ambience, making this month notably more frigid and damp than the milder seasons that follow. For a deeper look into Ishikari's weather patterns throughout the year, check out Ishikari Climate.