January Weather in Izumo, Japan

Last updated: August 21, 2025

In Izumo, Japan, January brings a mix of chilly temperatures and relatively high humidity, with an average of 5°C (42°F) and a maximum reaching 15°C (59°F). Nights can dip as low as -4°C (24°F), so dress warmly! The month sees approximately 84 mm (3.3 in) of precipitation spread over about 14 days, making it a wet and somewhat dreary time of year. With humidity levels at 82%, the air often feels heavier, adding to the cool atmosphere of this historic city. Whether you're exploring local temples or enjoying seasonal festivals, be prepared for the January weather in Izumo!

January Temperature in Izumo

In January, Izumo, Japan, experiences a crisp winter chill, with temperatures ranging from a brisk -4°C (24°F) at night to a mild 15°C (59°F) during the day, but the average settles around 5°C (42°F). This month marks the coldest part of the year, hinting at an impending transition as February approaches, where minimum temperatures dip to -8°C (19°F), yet the maximum can reach up to 19°C (67°F), providing occasional warmer days. As spring nears in March, the climate begins to warm, exhibiting a gradual rise in daily averages and maximum temperatures. Overall, these trends reflect a shift from the frigid start of the year towards a more temperate atmosphere, setting the stage for the blossoming seasons ahead.

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

The chart illustrates January temperature patterns in Izumo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Izumo, 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).
JanFebMarAprMayJunJulAugSepOctNovDec414248556571798274645545
Data source: Temperature data for Izumo 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 Izumo

In January, Izumo experiences a moderate precipitation total of 84 mm (3.3 in), spread over approximately 14 days. This sets the tone for a winter month that, while damp, is relatively milder compared to the heavier rainfall that follows in the warmer months. As winter transitions into spring, precipitation begins to rise, peaking notably in March with 125 mm (4.9 in). Interestingly, February sees a slight increase to 89 mm (3.5 in), hinting at the lingering effect of winter. The pattern reveals that January acts as a crucial bridge to the wetter spring and summer seasons, highlighting Izumo's shift from crisp winter air to the lush greenery nurtured by abundant rainfall throughout the upcoming months.

January Precipitation Trends in Izumo

The chart displays monthly precipitation patterns in Izumo, 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 Izumo, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec84891251149717329125222615053105
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Izumo

In January, Izumo, Japan experiences a high humidity level of 82%, setting the tone for a generally moist winter. As the months progress towards spring, humidity begins its gradual decline, reaching 79% in February and dropping further to 73% in March. This brief respite from the moisture is short-lived, however, as April sees a slight increase to 74%, followed by a notable rise during the warmer months. By May, humidity spikes to 84%, and the summer months push it even higher, reaching a peak of 92% in both July and August. As autumn arrives, humidity levels begin to ease, with September at 87% and gradually tapering off to 82% by December. Overall, Izumo's humidity portrays a predictable trend, characterized by a winter chill and a sultry, humid summer, reflecting the region's unique seasonal transitions.

January Average Humidity in Izumo

This chart illustrates the average monthly humidity levels in Izumo, 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 Izumo is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%73%74%84%86%92%92%87%85%84%82%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Izumo

In January, Izumo experiences a moderate UV Index of 4, allowing for a burn time of approximately 30 minutes before the nose, cheeks, and shoulders may start to show signs of sun exposure. As winter progresses into February, the UV Index rises slightly to 5, but the exposure remains in the moderate range, keeping burn time consistent at 30 minutes. However, as we transition into spring with March's UV Index reaching 8—a signal of very high exposure—individuals should take extra precautions, as the burn time drops to just 15 minutes. This trend escalates dramatically in April and May, where the UV Index peaks at 11, marking it as an extreme period with a perilously short burn time of only 10 minutes. The intensity continues through June, and July, before slightly tapering off in August with the same extreme rating of 12. As fall approaches, September sees a decrease to a UV Index of 10 and a burn time of 15 minutes, while October and November rebalance the chart with moderate indexes of 7 and 5 respectively, allowing for longer exposure times. Finally, December cools down to a more forgiving 3, creating a safe atmosphere for outdoor activities. Awareness of this evolving UV Index is essential for anyone planning to enjoy the sun in Izumo, especially during the high-risk months. For more detailed information, check out the Izumo UV Index.

Maximum UV Index Levels in Izumo for January

The chart shows the monthly maximum UV Index (UVI) for Izumo 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 Izumo typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458111111121210753
Data source: Izumo 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 Izumo

In Izumo, Japan, January marks the beginning of the year with 164 hours of sunshine, setting the stage for a gradual increase as winter yields to spring. By February, the days grow brighter with 212 hours of sunlight, hinting at the approaching warmth. This upward trend continues through March and April, soaring to 257 and then 279 hours, showcasing the invigorating energy of spring. May peaks at an impressive 299 hours, offering a vivid display of blooming nature. As summer arrives in June, we see a slight dip to 294 hours, followed by July and August, where sunshine reaches its zenith at 280 and 304 hours respectively. Following the summer, sunshine gradually diminishes in the fall months, with September at 253 hours, October at 243, and November tapering to 224 hours, before closing the year with a cozy 191 hours in December. This pattern of shifting sunlight beautifully mirrors the changing seasons, highlighting Izumo's dynamic climate throughout the year.

Monthly Sunshine Duration in Izumo: January Highlighted

The January sunshine duration represents the total number of hours Izumo 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.
JanFebMarAprMayJunJulAugSepOctNovDec164h212h257h279h299h294h280h304h253h243h224h191h
Data source: Izumo January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Izumo During January

In January, the likelihood of sunny weather in Izumo, Japan, is relatively low at 30%, making it one of the cloudier months. This trend of limited sunshine continues into February, where the probability climbs to 41%, hinting at a gradual improvement. As winter transitions to spring, March offers a similar chance of sunshine at 35%. By April, the percentage increases significantly to 44%, marking a turn towards brighter days. Interestingly, May sees a slight dip back to 31%, while the summer months exhibit a consistent decrease in sunshine, particularly between June and August, when chances fall to just 26% to 25%. The latter part of the year shows more potential for sunny days, especially in October, which boasts an impressive 49% likelihood. Overall, while January may be grey, the forecast suggests that the sun will gradually reclaim its place in Izumo's skies as the year progresses.

Percentage of Sunny Days in January in Izumo

The chart illustrates the percentage of sunny days in Izumo 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 Izumo experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%41%35%44%31%26%25%25%32%49%44%37%
Data source: Izumo January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Izumo in January

In Izumo, Japan, January brings a modest 10 hours of daylight, a continuation of the winter's early sunsets and late sunrises. As the month progresses into February, daylight remains consistent at 10 hours, keeping the winter chill firmly in place. However, the transition into spring is marked by a gradual increase; by March, daylight extends to 11 hours, hinting at longer, warmer days ahead. This upward trend accelerates through April and May, where daylight reaches 13 and 14 hours respectively, inviting vibrant blooms and outdoor activities. The summer months of June and July maintain this peak at 14 hours, offering abundant opportunities to enjoy the sun. As August gives way to September, daylight begins to retreat slightly to 13 and then 12 hours, heralding the arrival of autumn. October and November continue this decline, with daylight reducing to 11 and then 10 hours, before December's shorter days usher in the winter season with just 9 hours of sunlight. Overall, the rhythm of daylight in Izumo beautifully reflects the changing seasons, inviting residents to embrace the unique charm each month has to offer.

Average Daylight Hours in Izumo for January

The chart illustrates the variation in daylight duration in Izumo 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 5m14h 1m14h 29m14h 15m13h 26m12h 22m11h 15m10h 17m9h 48m
Data source: Izumo daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Izumo

In January, the winds in Izumo, Japan blow steadily at an average speed of 4.3 m/s (10 mph), setting a brisk tone for the start of the year. As winter progresses into February, a slight increase to 4.5 m/s maintains that invigorating atmosphere, perfect for the chill in the air. However, by March, the winds ease to 3.7 m/s, signaling a gentle transition into spring. This gradual calm continues into April and May, where speeds plateau around 3.6 m/s. The summer months see a notable dip, with June and July averaging just 2.4 m/s and 2.6 m/s, respectively, creating a notably serene environment. As autumn approaches, wind speeds slightly return to a moderate 3.0 m/s in September and October, before experiencing a resurgence in winter as December wraps up the year at 4.4 m/s. This annual cycle highlights the seasonal ebb and flow of Izumo's winds, from brisk winter currents to the soothing stillness of summer.

Average January Wind Speed in Izumo

The chart displays monthly wind speed patterns in Izumo, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.3 m/s4.53.73.63.62.42.63.03.02.93.74.4
Data source: Izumo January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Izumo Compares to Other Months

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

January typically experiences milder temperatures, with averages around 5°C (42°F) and a maximum of 15°C (59°F), while February sees a slight overall increase in average temperature to 6°C (42°F) and a peak of 19°C (67°F). However, February can be chillier at night, with minimum temperatures dropping to -8°C (19°F) compared to January's -4°C (24°F). Precipitation levels are similar in both months, with February recording just slightly more at 89 mm (3.5 in) compared to January's 84 mm (3.3 in); both months also feature about 14 days of rain. Humidity is slightly lower in February at 79%, contrasted with January's 82%. For more detailed information, check out Izumo weather in February.

January and March present contrasting weather patterns. In January, the temperatures range from a chilly minimum of -4°C (24°F) to an average of 5°C (42°F) and can reach a maximum of 15°C (59°F). The month is characterized by higher humidity at 82% and experiences 84 mm (3.3 in) of precipitation over 14 days. In comparison, March sees a more moderate climate with temperatures starting at a minimum of 1°C (34°F) and averaging 9°C (49°F), peaking at a pleasant 21°C (70°F). Although March has slightly more precipitation at 125 mm (4.9 in) over 13 days, the humidity drops to 73%. For more details on the weather in March, you can visit Izumo weather in March.

In January, temperatures are quite chilly, with a minimum of -4°C (24°F) and an average of 5°C (42°F), peaking at 15°C (59°F). This month also sees significant precipitation, with 84 mm (3.3 in) spread over 14 days, alongside high humidity levels at 82%. In contrast, April brings a noticeable warming trend, with minimum temperatures rising to 2°C (35°F) and an average of 13°C (56°F), reaching a maximum of 24°C (75°F). Although precipitation increases to 113 mm (4.5 in), it occurs over just 10 days, and humidity decreases to a more comfortable 74%. For more detailed weather information, you can explore Izumo weather in April.

January weather in Izumo is characterized by cool temperatures, with minimums reaching as low as -4°C (24°F) and an average of 5°C (42°F). The month sees considerable precipitation, averaging 84 mm (3.3 in) over 14 days, resulting in a humid environment with an 82% humidity level. In contrast, May brings much warmer temperatures, with a minimum of 8°C (47°F) and an average high of 18°C (65°F), peaking at 27°C (82°F). Although May experiences slightly higher precipitation at 97 mm (3.8 in), it is spread over just 8 days, resulting in a more pleasant atmosphere with a humidity level slightly higher at 84%. For more detailed weather conditions in May, check Izumo weather in May.

In January, temperatures in Izumo are quite chilly, ranging from a minimum of -4°C (24°F) to a maximum of 15°C (59°F), with an average of 5°C (42°F). This month experiences relatively high humidity at 82% and sees about 84 mm (3.3 in) of precipitation over 14 days. In contrast, June brings much warmer weather, with minimum temperatures around 13°C (55°F), averages peaking at 22°C (71°F), and maximums reaching as high as 32°C (90°F). The humidity slightly increases to 86%, while precipitation levels rise significantly to 173 mm (6.8 in) over 13 days. For more details on June weather, you can check Izumo weather in June.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 15°C (59°F) and an average of 5°C (42°F). The month sees about 84 mm (3.3 in) of precipitation over approximately 14 days, accompanied by a humidity level of 82%. In stark contrast, July brings warmth and humidity, with temperatures ranging from a minimum of 19°C (67°F) to a scorching maximum of 35°C (94°F) and an average of 26°C (79°F). During this month, Izumo experiences significantly higher precipitation at 290 mm (11.4 in) spread over around 18 days, and humidity rises to a robust 92%. For more details on July weather in Izumo, you can visit Izumo weather in July.

Comparing the weather in January and August reveals striking differences in temperature and precipitation. In January, the temperatures range from a chilly minimum of -4°C (24°F) to a comfortable maximum of 15°C (59°F), with an average of 5°C (42°F). The month also sees 84 mm (3.3 in) of precipitation over about 14 days, accompanied by a humidity level of 82%. In contrast, August brings much warmer temperatures, with lows starting at 19°C (67°F) and soaring to a high of 36°C (96°F), averaging around 28°C (82°F). This month experiences significantly more rainfall, totaling 252 mm (9.9 in) across the same 14 days and an increase in humidity to 92%. For more insights on August weather, you can check Izumo weather in August.

January and September present contrasting weather experiences. In January, temperatures range from a chilly -4°C (24°F) to a milder 15°C (59°F), with an average of 5°C (42°F). The month sees around 84 mm (3.3 in) of precipitation over 14 days, accompanied by a humidity level of 82%. In comparison, September boasts much warmer temperatures, with a minimum of 15°C (59°F) and a maximum reaching up to 34°C (93°F). The average temperature of 23°C (74°F) highlights the transition to autumn, although this month experiences a higher total precipitation of 226 mm (8.9 in) over 15 days, alongside a humidity of 87%. For more details about the weather in September, you can visit Izumo weather in September.

In January, the weather is much colder, with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 15°C (59°F) and an average of 5°C (42°F). Precipitation during this month is moderate, totaling 84 mm (3.3 in) over 14 days, accompanied by a high humidity level of 82%.

In contrast, October experiences noticeably warmer conditions, with temperatures starting at a minimum of 9°C (49°F), averaging 18°C (65°F), and reaching up to 30°C (86°F). Although October sees higher precipitation at 150 mm (5.9 in) over 12 days, the humidity is slightly elevated at 85%. Overall, October's climate is significantly more pleasant compared to the chill of January. For more detailed information, visit Izumo weather in October.

January and November exhibit markedly different weather patterns. In January, temperatures can dip as low as -4°C (24°F) and reach a maximum of 15°C (59°F), averaging around 5°C (42°F). The month also sees higher precipitation totals of 84 mm (3.3 in) spread over 14 days, coupled with a humidity level of 82%. In contrast, November experiences milder temperatures, with a minimum of 4°C (39°F) and a maximum of 24°C (76°F), averaging 13°C (55°F). Precipitation is lower at 53 mm (2.1 in) over 9 days, while humidity remains fairly consistent at 84%. For more detailed information on November weather, you can refer to Izumo weather in November.

In January, the weather tends to be colder compared to December, with minimum temperatures dropping to -4°C (24°F) and average highs reaching only 15°C (59°F). In contrast, December experiences milder conditions, with a minimum of 0°C (32°F) and average highs of up to 21°C (69°F). Precipitation is more frequent in December, occurring on 18 days and totaling 105 mm (4.1 in), while January sees 14 days of rain, amounting to 84 mm (3.3 in). Interestingly, both months share the same humidity level of 82%, making them similarly damp despite the seasonal temperature differences. For more details about the weather in December, you can visit Izumo weather in December.

Compare Izumo's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Izumo

As we delve into January weather in Izumo, it's clear that this month stands out from the rest of the year with its chill and precipitation. While temperatures hover around a crisp average of 5°C, winter dominates the landscape with occasional sharp dips that can lead to frosty mornings. With over 14 days of rain, the 84 mm of precipitation highlights January's role as one of the wettest months, setting it apart from the drier summer season. Humidity levels soar at 82%, creating a damp atmosphere that often feels colder than the actual temperature. For those looking to understand the nuances of Izumo's climate, visit Izumo Climate for a deeper dive into seasonal variations.