October Weather in Oshu, Japan

Last updated: August 21, 2025

October in Oshu, Japan, offers a captivating blend of mild temperatures and autumnal beauty. With maximums reaching 27°C (80°F) and average temperatures around 13°C (55°F), the days are pleasantly warm, giving way to cooler evenings where temperatures can drop to a chilly 0°C (33°F). This month also brings 154 mm (6.1 in) of rainfall spread across 12 days, contributing to the region's lush landscapes. Coupled with an average humidity of 82%, October showcases Oshu's vibrant fall foliage, making it a perfect time for exploration and appreciation of nature's transformation.

October Temperature in Oshu

October in Oshu, Japan, marks a transition into the crisp embrace of autumn, with temperatures that gracefully shift from summer warmth to cooler conditions. The month begins with a minimum temperature of 0°C (33°F), providing a chilly start, while the average temperature reaches a comfortable 13°C (55°F). This is complemented by maximums soaring to 27°C (80°F), which still reflect the remnants of summer's heat. As the days grow shorter, the descent from the balmy heights of September becomes evident, transitioning into November's chillier climate. This month encapsulates a beautiful change, blending the lingering warmth of late summer with the refreshing coolness that heralds the winter months ahead.

October Weather in Oshu: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Oshu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oshu, October 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).
JanFebMarAprMayJunJulAugSepOctNovDec293039475864727466554333
Data source: Temperature data for Oshu 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.

October Precipitation in Oshu

In October, Oshu, Japan experiences a significant uptick in precipitation, with 154 mm (6.1 in) of rain falling over 12 days. This makes October one of the wetter months of the year, showcasing a shift in weather patterns as autumn progresses. Compared to the preceding months, October's rainfall fits into the broader trend of increasing precipitation, peaking in July and August with their respective 182 mm and 167 mm. However, it also reflects a decrease from the lush summer months, providing a balance as the region transitions into drier late autumn. Notably, the relatively stable number of precipitation days throughout the year indicates that rain in Oshu tends to be consistent, even if the volume varies widely from month to month.

October Precipitation Trends in Oshu

The chart displays monthly precipitation patterns in Oshu, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Oshu, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec56691071191141291821671171545678
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Oshu

In Oshu, Japan, October witnesses a notable shift in humidity, with levels averaging around 82%. This marks a slight decrease from the more oppressive heat of summer, where humidity peaks at 92% in both July and August. As autumn settles in, October's values reflect a gradual transition from the extreme moisture of the summer months. The trend shows a consistent ebb, with humidity gradually declining from the summer highs while remaining relatively elevated compared to earlier months in the year, such as January's average of 80%. This seasonal shift contributes to a crisp yet humid atmosphere, characteristic of Oshu in the fall, inviting both locals and visitors alike to enjoy the vibrant autumn scenery.

October Average Humidity in Oshu

This chart illustrates the average monthly humidity levels in Oshu, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Oshu is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%77%75%80%87%92%92%86%82%79%80%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Oshu

In October, Oshu, Japan, experiences a UV Index of 6, categorizing it as high exposure with a burn time of 25 minutes. This month marks a notable shift as the summer months recede, which previously displayed peak UV levels, consistently above 9. As we transition from the intense sun of July and August, where the UV Index reached its maximum of 10, to the milder conditions of fall, it's vital to remain cautious about sun exposure. The month serves as a reminder that while the risk decreases, protection is still essential. For detailed insights into UV levels throughout the year, visit Oshu UV Index.

Maximum UV Index Levels in Oshu for October

The chart shows the monthly maximum UV Index (UVI) for Oshu in October, 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 October, the maximum UV index in Oshu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891010109643
Data source: Oshu October 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.

October Sunshine in Oshu

In Oshu, Japan, the month of October basks in a gentle glow, recording 207 hours of sunshine. This marks a slight dip from the sun-drenched peak experienced in May with 290 hours, yet it remains a favorable month compared to the cloudier winter ahead. The trend reveals a gradual decrease in daylight hours as the year progresses, with October showing more sunshine than the preceding September at 239 hours. This month bridges the vibrant summer months to the cozy ambiance of autumn, inviting locals and visitors alike to enjoy the beautiful fall foliage under a pleasantly sunny sky. As the days grow shorter, the warm, inviting sunshine of October serves as a reminder of the lush vitality of the preceding months.

Monthly Sunshine Duration in Oshu: October Highlighted

The October sunshine duration represents the total number of hours Oshu experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec165h218h255h263h290h271h251h251h239h207h213h199h
Data source: Oshu October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Oshu During October

In Oshu, Japan, October presents a 31% chance of sunny weather, slightly higher than the dreary summer months of July and August, which see chances plummet to 20% and 18% respectively. This moderate occurrence of sunshine hints at a transition towards the more favorable conditions of late autumn. While October does not quite match the clearer skies of spring months like April (42%) or November (41%), it represents a step away from the rainy season, suggesting that residents and visitors alike can still enjoy a fair share of sunny days amidst the autumn foliage.

Percentage of Sunny Days in October in Oshu

The chart illustrates the percentage of sunny days in Oshu throughout the year, with October 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 Oshu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%43%32%42%25%22%20%18%28%31%41%32%
Data source: Oshu October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Oshu in October

As autumn settles in Oshu, Japan, October brings a gentle shift in daylight duration, offering 11 hours of daylight. This month marks a transition from the bright and abundant days of summer, where residents enjoyed up to 14 hours of sunlight in June, July, and August. Following this peak, daylight begins to gradually wane, with September's 12 hours leading smoothly into October's softer light. As the year progresses, daylight hours continue to decline, decreasing to 10 hours in November and returning to 9 hours by December. This rhythmic change paints a vivid picture of the seasons, inviting reflections on both nature's cycles and the cozy embrace of shorter days ahead.

Average Daylight Hours in Oshu for October

The chart illustrates the variation in daylight duration in Oshu throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 44m10h 42m11h 57m13h 13m14h 18m14h 51m14h 35m13h 38m12h 24m11h 8m10h 1m9h 27m
Data source: Oshu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Oshu

As October rolls into Oshu, Japan, the breeze carries a gentle reminder of the changing seasons, with an average wind speed of 2.1 m/s (5 mph). This month marks a noticeable stabilization in wind patterns, echoing the tranquility seen in September. Following warmer summer months where the wind tended to whisper softly with speeds around 1.8 to 2.1 m/s, October introduces a mild crispness in the air, setting the stage for the autumn foliage that will soon blanket the landscape. Interestingly, the wind becomes slightly more prominent as winter approaches, with November seeing a marginal increase to 2.3 m/s. This gradual shift hints at the vibrant transitions that characterize Oshu's climate, inviting residents and visitors alike to embrace the beauty that each gust brings.

Average October Wind Speed in Oshu

The chart displays monthly wind speed patterns in Oshu, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.83.73.13.12.82.01.82.12.12.1 m/s2.32.9
Data source: Oshu October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Oshu Compares to Other Months

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

October and January present stark contrasts in weather. In October, temperatures range from a chilly 0°C (33°F) at night to a comfortable high of 27°C (80°F) during the day, with an average temperature of 13°C (55°F). Rain is frequent, with around 154 mm (6.1 in) of precipitation over about 12 days, accompanied by high humidity of 82%. In contrast, January brings cold conditions, with temperatures plunging as low as -22°C (-8°F) and averaging around -2°C (30°F), peaking at just 7°C (45°F). The month is significantly drier, receiving only 56 mm (2.2 in) of precipitation, but the humidity remains relatively high at 80%. For those interested in a deeper dive into winter conditions, check out Oshu weather in January.

October and February present stark contrasts in weather patterns. In October, temperatures range from a chilly 0°C (33°F) at their lowest to a warm 27°C (80°F) at their peak, with an average of 13°C (55°F). This month also sees significant rainfall, with 154 mm (6.1 in) over about 12 days, contributing to a relatively high humidity level of 82%. In contrast, February is much colder, with temperatures dropping as low as -18°C (0°F) and averaging -1°C (31°F), peaking at just 11°C (52°F). Precipitation levels are lower in February, at 69 mm (2.7 in) over 14 days, with a humidity level slightly lower at 79%. For more detailed insights into February weather, visit Oshu weather in February.

In comparing the weather of October and March, October presents a milder climate with average temperatures ranging from a chilly 0°C (33°F) at night to a warm 27°C (80°F) during the day. This month experiences higher precipitation, with around 154 mm (6.1 in) spread over 12 days, coupled with a humidity level of 82%. In contrast, March is significantly colder, with temperatures dipping as low as -12°C (11°F) and peaking at 20°C (68°F), while still averaging 4°C (39°F). Although March sees less precipitation at 106 mm (4.2 in) over 14 days, it has slightly lower humidity at 77%. For those interested in the specifics of March weather, more details can be found at Oshu weather in March.

When comparing October and April weather, October tends to be milder with an average temperature of 13°C (55°F), while April experiences cooler temperatures, averaging around 8°C (47°F). In October, temperatures can range from a chilly 0°C (33°F) at night to a warm 27°C (80°F) during the day, whereas April has a wider night-to-day temperature fluctuation, with a minimum of -6°C (21°F) and a maximum of 25°C (77°F). Additionally, October sees more precipitation at 154 mm (6.1 in) over 12 days compared to April's 119 mm (4.7 in) over 15 days, although the humidity in October is slightly higher at 82% compared to April's 75%. For more details on April's weather, you can visit Oshu weather in April.

When comparing the weather in October and May, we see notable differences in temperature and precipitation. October experiences a wider range of temperatures, with a minimum of 0°C (33°F) and a maximum of 27°C (80°F), while May typically ranges from 3°C (38°F) to 30°C (87°F). Both months have considerable humidity, with October slightly higher at 82% compared to May's 80%. Precipitation also varies, with October receiving 154 mm (6.1 in) over 12 days, in contrast to May's 114 mm (4.5 in) over 13 days. For more detailed information on May's weather, you can visit Oshu weather in May.

In comparing the weather between October and June, we see notable differences in temperature and precipitation. October experiences a wider temperature range, with a minimum of 0°C (33°F) and a maximum of 27°C (80°F), resulting in an average of 13°C (55°F). In contrast, June offers milder temperatures with a minimum of 7°C (44°F) and a maximum of 30°C (87°F), averaging 18°C (65°F). While October is slightly wetter with 154 mm (6.1 in) of precipitation over 12 days, June has 129 mm (5.1 in) across 14 days. Both months exhibit high humidity, with October at 82% compared to June's 87%. For more detailed information, visit Oshu weather in June.

When comparing the weather in October to that of July, notable differences emerge. In October, temperatures range from a chilly minimum of 0°C (33°F) to a comfortable average of 13°C (55°F), peaking at a warm 27°C (80°F). In contrast, July boasts much warmer temperatures, with a minimum of 14°C (57°F), an average of 22°C (72°F), and a maximum reaching as high as 33°C (92°F). Additionally, while October experiences about 154 mm (6.1 in) of precipitation over 12 days, July sees slightly higher rainfall at 182 mm (7.2 in) across 17 days. Humidity levels are also elevated in July at 92%, compared to 82% in October, contributing to a significantly more humid and warmer atmosphere during the summer month. For more specific details, you can refer to Oshu weather in July.

In comparing the weather of October and August, October tends to be considerably cooler, with average temperatures ranging from a frosty 0°C (33°F) at night to a maximum of 27°C (80°F) during the day. In contrast, August boasts warmer nights with temperatures between 10°C (51°F) and a high of 34°C (94°F). Both months experience notable precipitation, with October receiving an average of 154 mm (6.1 in) over 12 days, while August sees slightly higher rainfall at 167 mm (6.6 in) across 18 days. Humidity levels are also slightly lower in October at 82%, compared to August's 92%. For a more detailed look at August conditions, you can visit Oshu weather in August.

October weather features cooler temperatures compared to September, with minimums dropping to 0°C (33°F) and average highs reaching 27°C (80°F), a significant shift from September’s milder averages of 4°C (39°F) minimum and 33°C (91°F) maximum. Additionally, October sees an increase in precipitation, totaling 154 mm (6.1 in) over the same number of rainy days (12) as September, which recorded 117 mm (4.6 in). Humidity levels remain relatively high in both months, with October at 82% and September slightly higher at 86%. For more detailed insights on September's weather, check out Oshu weather in September.

In October, the weather is noticeably warmer with average temperatures ranging from a minimum of 0°C (33°F) to a maximum of 27°C (80°F), while November cools down significantly, featuring temperatures that dip to a minimum of -4°C (24°F) and an average of just 6°C (44°F). October also sees higher precipitation levels at 154 mm (6.1 in) over approximately 12 days, compared to November's 56 mm (2.2 in) spread over about 10 days, indicating a drier month. Humidity remains relatively consistent, with October at 82% and November slightly lower at 79%. For more specific details about the climate in November, you can visit Oshu weather in November.

October and December showcase a striking contrast in weather conditions. In October, temperatures range from a mild minimum of 0°C (33°F) to a pleasant maximum of 27°C (80°F), with an average of 13°C (55°F). It is a relatively wet month with 154 mm (6.1 in) of precipitation falling over 12 days and humidity levels at 82%. In contrast, December ushers in much colder temperatures, with a minimum dipping to -10°C (14°F) and an average of just 1°C (33°F), peaking at 14°C (58°F). This month is characterized by lower precipitation totaling 78 mm (3.1 in), spread over 17 days, while humidity remains slightly lower at 80%. For a more detailed look at December weather, check out Oshu weather in December.

Compare Oshu's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Oshu

October in Oshu marks a delightful transition, where the days gradually cool down from the summer heat, boasting a comfortable average temperature that invites outdoor exploration. With a significant increase in precipitation—seeing about 12 days of rain—this month becomes noticeably wetter compared to the drier summer months. The high humidity can make it feel a bit more enveloping, yet the crisp air hints at the upcoming winter, providing a refreshing change. This unique blend of cooler temperatures, increased moisture, and softer light makes October a distinct and vibrant month in Oshu, perfect for experiencing the colorful autumn scenery. For a deeper dive into the weather patterns, visit Oshu Climate.