Last updated: August 21, 2025
In Hachioji, Japan, October presents a fascinating weather profile, with temperatures ranging from a maximum of 30°C (86°F) to a minimum of 5°C (41°F), leading to an average of 16°C (61°F). This transitional month is characterized by significant precipitation, accumulating to 346 mm (13.6 in) over approximately 19 days, contributing to a notably high humidity level of 83%. As autumn unfolds, residents and visitors alike can expect a blend of crisp air and vibrant foliage, making October a dynamic and engaging time to experience the beauty of Hachioji.
As October arrives in Hachioji, Japan, the temperatures start to exhibit a refreshing change, marking the transition into autumn. With daily averages settling around 16°C (61°F), the days are pleasantly cool, while the maximums can still reach a comfortable 30°C (86°F), allowing for some lingering warmth from the summer. Evenings cool down significantly, with minimums dropping to 5°C (41°F), inviting cozy layers for outdoor activities. This month beautifully captures the essence of fall, as both the temperatures and the vibrant autumn foliage invite exploration and appreciation of nature’s serene beauty.
In October, Hachioji experiences its peak precipitation, with a remarkable 346 mm (13.6 in) of rain, making it one of the wettest months of the year. Spanning 19 days, this autumn downpour significantly influences the local landscape, as lush foliage and vibrant colors flourish amidst the rainfall. The trend of increasing precipitation is notable from the previous months, particularly following the heavy rains of September, which saw 247 mm. As the year progresses into the latter months, the shift from the intense summer rains in July and August provides a substantial contrast. With such abundant rainfall, October stands out not only for its soggy weather but also for its role in nurturing the vibrant natural scenery that characterizes this season in Hachioji.
In Hachioji, Japan, October brings a notable shift in humidity levels, averaging a comfortable 83%. This marks a decline from the peak summer months of July and August, where humidity soared to 93% and 90%, respectively. After the intense moisture of early summer, the fall season offers a refreshing transition as September sees a slight decrease to 86%. This pattern indicates a gradual reduction in humidity as temperatures cool, creating a more moderate atmosphere that allows residents to enjoy the vibrant autumn foliage without the oppressive stickiness of the preceding months. Overall, October's humidity reflects a balanced climate, paving the way for the crisp air of winter that soon follows.
As October rolls into Hachioji, Japan, residents and visitors can expect a moderate to high UV Index of 7, allowing for 25 minutes of sun exposure before the risk of harm sets in. This marks a noticeable drop from the extreme levels seen in the summer months, where August reached a peak of 11, demanding extra caution. The shift to October reflects the gradual easing of intense summer sun, making it a great time for outdoor activities without excessive UV risk. However, as the season transitions, maintaining sun protection remains important. For more details on daily UV levels and trends, check out Hachioji UV Index.
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In Hachioji, Japan, October brings a transition in sunshine hours as the year winds down. With 205 hours of sunlight, October showcases a dip from the sun-soaked days of summer, peaking in August at 284 hours. As the vibrant greens of late summer give way to the warm hues of fall, this month offers a delightful combination of moderate sunshine and cooler temperatures. While still brighter than the winter months ahead, October's sunlight is a gentle reminder of the changing seasons, bridging the gap between the lush summer and the crisp winter, and contributing to a stunning autumn landscape.
In Hachioji, Japan, the likelihood of sunny weather in October stands at 46%, reflecting a moderate chance that contrasts with the lower figures seen during the summer months. As we transition from the humid summer, where sunshine is often scarce, to the more temperate fall, October emerges as a month of potential brightness. The gradual increase in sunny days towards the year-end is notable; after September's 21%, October shows a promising shift. Although not the sunniest month, its chances are better than in both the previous summer and many early autumn months, hinting at a delightful balance of cool air and occasional warm sun.
In Hachioji, Japan, October marks a gentle transition as daylight begins to wane, offering around 11 hours of sunlight. Following the summer months, which bask in the fullness of daylight at 14 hours, October sees a decrease reminiscent of the shorter days of spring and early fall. This gradual decline from the vibrant 14 hours in June, July, and early August, down to 12 hours in September, sets the stage for winter's brief days ahead. As the months progress towards November, where daylight shrinks to 10 hours, Hachioji's October serves as a poignant reminder of nature's cyclical rhythm, blending lingering warmth with the crisp approach of autumn.
As October graces Hachioji, a gentle breeze picks up, marked by an average wind speed of 2.0 m/s (4 mph). This slight increase from the previous months reflects a subtle transition in the seasons—one where the crispness of autumn begins to set in. Compared to the quieter summer months, where winds dipped as low as 1.5 m/s (3 mph) in July, October's winds evoke a refreshing change, blending the remnants of warmth with the upcoming chill of winter. As foliage shifts to vibrant hues, this moderate wind whispers of transformation, making October a delightful time to experience the beauty of nature in Hachioji.
Weather in Hachioji varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Hachioji, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January exhibit stark contrasts in weather patterns. In October, temperatures range from a mild 5°C (41°F) at night to a warm 30°C (86°F) during the day, with an average temperature of 16°C (61°F). This month also sees substantial rainfall, with 346 mm (13.6 in) falling over 19 days and humidity levels peaking at 83%. In contrast, January experiences much colder weather, with temperatures plummeting to a minimum of -13°C (9°F) and averaging just 3°C (37°F), reaching a maximum of 17°C (63°F). Precipitation is significantly lower at 53 mm (2.1 in) over just 7 days, accompanied by a lower humidity level of 76%. For a detailed look at conditions, check out Hachioji weather in January.
October and February present striking contrasts in weather. October enjoys a much warmer climate, with average temperatures around 16°C (61°F) and maximums reaching up to 30°C (86°F), while February is considerably colder, with average temperatures hovering around 4°C (40°F) and lows dipping to -6°C (21°F). In October, the region experiences significantly higher precipitation, totaling 346 mm (13.6 in) over 19 days, compared to February's 62 mm (2.4 in) across just 10 days, resulting in a more humid atmosphere in October at 83%, while February sees a lower humidity of 74%. For more detailed insights into February weather, check out Hachioji weather in February.
October and March present contrasting weather patterns, showcasing the transition between autumn and spring. October boasts warmer average temperatures, ranging from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with higher humidity at 83% and considerable precipitation of 346 mm (13.6 in) over 19 days. In contrast, March features cooler temperatures, with a minimum of -4°C (26°F) and a maximum of 23°C (73°F) and lower humidity at 70%. Precipitation during March amounts to 166 mm (6.5 in) across 14 days, indicating a relatively drier month compared to October. For detailed insights into March weather conditions, you can visit Hachioji weather in March.
When comparing the weather in October and April, a notable difference is evident in temperature and precipitation. October experiences a wider temperature range, with minimums reaching 5°C (41°F) and maximums soaring up to 30°C (86°F), while April tends to be cooler, starting at a minimum of -2°C (29°F) and peaking at 26°C (79°F). Additionally, October is marked by significantly higher precipitation levels, accumulating 346 mm (13.6 in) over 19 days, compared to April's 150 mm (5.9 in) over just 15 days. October's humidity is also higher at 83%, in contrast to April's 74%. For a detailed look at April weather, you can check Hachioji weather in April.
October and May share similar maximum temperatures, both reaching up to 30°C (86°F), yet they differ significantly in overall weather patterns. October, with a minimum temperature of 5°C (41°F) and an average of 16°C (61°F), experiences higher precipitation levels at 346 mm (13.6 in) over approximately 19 days, contributing to a humid atmosphere with 83% humidity. In contrast, May offers slightly milder temperatures, with a minimum of 4°C (39°F) and an average of 17°C (64°F), and significantly less rain at 148 mm (5.8 in) over 15 days, resulting in a drier overall feel with 81% humidity. For a detailed look at weather specifics, you can check Hachioji weather in May.
When comparing the weather in October and June, notable contrasts emerge. October features a wider temperature range, with a minimum of 5°C (41°F) and a maximum of 30°C (86°F), leading to an average of 16°C (61°F). In contrast, June has a milder temperature spectrum, ranging from a minimum of 11°C (52°F) to a maximum of 31°C (88°F), resulting in a higher average of 20°C (69°F). Precipitation levels also differ, with October experiencing 346 mm (13.6 in) of rainfall over 19 days, compared to June's 209 mm (8.2 in) during the same number of days. Humidity remains relatively high in both months, at 83% for October and slightly higher at 88% for June. For more details on June weather patterns, you can visit Hachioji weather in June.
In comparing the weather between October and July, October presents a significantly cooler climate, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 30°C (86°F) and an average of 16°C (61°F). In contrast, July is much warmer, featuring minimum temperatures around 16°C (60°F), an average of 24°C (76°F), and maximums reaching 35°C (95°F). Precipitation in October is quite high at 346 mm (13.6 in) over 19 days, while July sees slightly less at 312 mm (12.3 in) across 24 days, resulting in both months experiencing considerable rainfall. Additionally, humidity levels are notably higher in July at 93%, compared to October’s 83%. For more detailed information, you can check Hachioji weather in July.
In comparing the weather of October and August, we see significant differences in temperature and precipitation. October experiences milder temperatures with a minimum of 5°C (41°F) and an average of 16°C (61°F), peaking at 30°C (86°F). In contrast, August is noticeably warmer, with a minimum of 15°C (59°F), an average of 26°C (79°F), and highs reaching 36°C (97°F). Precipitation levels in October are also higher, measuring 346 mm (13.6 in) over 19 days, compared to August's 195 mm (7.7 in) over 23 days. Humidity is slightly lower in October at 83%, while August sees a higher level at 90%. For more details about August weather, you can check Hachioji weather in August.
In comparing the weather of October and September, October experiences noticeably cooler temperatures, with a minimum of 5°C (41°F) and an average of 16°C (61°F), in stark contrast to September's warmer range, which sees a minimum of 12°C (53°F) and an average of 22°C (71°F). September also boasts higher maximum temperatures, reaching up to 35°C (94°F), while October's peak is more moderate, at 30°C (86°F). In terms of precipitation, October is significantly wetter, with 346 mm (13.6 in) of rainfall over 19 days compared to September's 247 mm (9.7 in) spread across 22 days. Despite October's higher rainfall, the humidity levels remain similar, with October at 83% and September slightly higher at 86%. For a detailed look at September's weather conditions, you can visit Hachioji weather in September.
October typically features a broader range of temperatures, with nighttime lows around 5°C (41°F) and daytime highs reaching up to 30°C (86°F), making it a transitional month with an average temperature of 16°C (61°F). However, it also brings considerable rainfall, with 346 mm (13.6 in) of precipitation over 19 days, contributing to a high humidity level of 83%. In contrast, November experiences cooler temperatures, as the minimum can drop to -1°C (30°F) and the average settles at 11°C (52°F), with a maximum of 23°C (73°F). Precipitation decreases significantly to 72 mm (2.8 in) across 10 days, leading to slightly lower humidity of 80%. This shift in weather patterns from October to November reflects a clear transition towards winter. For more detailed insights, you can check Hachioji weather in November.
October and December weather showcase a significant contrast in temperatures and precipitation levels. In October, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 16°C (61°F). The month is characterized by high humidity at 83% and considerable rainfall of 346 mm (13.6 in) across 19 days. In contrast, December experiences much cooler temperatures, where the minimum drops to -5°C (23°F) and the average is only 5°C (42°F), with a maximum of 20°C (69°F). Precipitation also decreases significantly to 62 mm (2.4 in) over just 9 days, accompanied by slightly lower humidity at 78%. For more detailed insights about December weather, check out this link: Hachioji weather in December.
October in Hachioji offers a striking contrast to the preceding summer months, as temperatures begin to cool and the landscape transforms with autumn foliage. With average temperatures settling around 16°C, residents experience a refreshing break from the heat, though maximum highs can still reach 30°C on warmer days. However, the increased humidity at 83% and significant precipitation throughout the month, averaging 346 mm over 19 days, contribute to a more dynamic and often damp atmosphere. This blend of cool temperatures and frequent rains makes October a vibrant yet unpredictable month. For those interested in a deeper dive into the yearly weather patterns, visit Hachioji Climate for more insights.