Last updated: August 21, 2025
In Nagano, Japan, October beckons with a captivating blend of mild temperatures and abundant rainfall. The maximum temperature can reach a comfortable 28°C (82°F), while the average hovers around a crisp 13°C (56°F). As the month progresses, the chill deepens to a minimum of 2°C (36°F), making warmer clothing a must for outdoor explorations. With precipitation measuring 217 mm (8.5 in) spread over 18 days, the landscape bursts into vibrant autumn hues, though visitors should prepare for frequent showers. Coupled with a high humidity level of 87%, October in Nagano is a striking tapestry of changing seasons, perfect for those looking to experience Japan’s breathtaking fall foliage.
In October, Nagano, Japan undergoes a significant shift as the crispness of autumn settles in. With minimum temperatures at 2°C (36°F) and average highs reaching up to 28°C (82°F), the weather provides a refreshing contrast to the summery heat of the preceding months. This transitional period boasts an average temperature of 13°C (56°F), allowing visitors to enjoy the beautiful fall foliage in a comfortable climate. As the days gradually cool down, it’s a perfect time for outdoor activities and experiencing the vibrant seasonal landscape that Nagano is renowned for. The combination of chilly nights and pleasant daytime warmth makes October a delightful month for both locals and travelers alike.
In October, Nagano, Japan experiences a notable increase in precipitation, with an average of 217 mm (8.5 in) of rain spread over 18 days. This spike is part of a trend observed as the region shifts from the dry late summer months into the wetter fall season. Following the moderate rains of September, which brought 194 mm (7.6 in), October continues the pattern of substantial rainfall, signaling the onset of autumn with its lush scenery. This transition is particularly pronounced when juxtaposed with the lower precipitation of November at just 94 mm (3.7 in), highlighting October as a pivotal month for rain in the yearly cycle. The rich, wet atmosphere not only revitalizes the landscape but also sets the stage for the beautiful autumn foliage that Nagano is famous for.
As autumn settles in, October brings a humidity level of 87% to Nagano, Japan, showcasing a slight dip from the preceding months of summer. This month marks a transition from the peak humidity experienced in July and August, both at 92%, where the air feels particularly heavy and moist. Following September's 89%, October's reading indicates a cooling trend that prepares the region for the crispness of November. Despite this decrease, October's humidity remains relatively high, reflecting the lingering warmth of early fall before the colder months set in. Overall, the humidity gradually decreases from the sweltering summer months, reminding us of the dynamic interplay between seasons in this beautiful area.
As October settles in Nagano, the UV Index drops to a high level of 7, indicating a burn time of just 25 minutes for unprotected skin. This marks a notable decline from the intense extremes of summer, where indices soared to 11 and required vigilant sun protection. Although the UV radiation is less severe than the peak months, it's still essential to stay cautious, especially during midday hours. As the seasons transition, the UV Index exhibits a declining trend after the summer's peak, reflecting the local climate's shift towards cooler weather. For those interested in tracking UV exposure throughout the year, more details can be found at Nagano UV Index.
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As October unfolds in Nagano, Japan, the city experiences a gentle decline in sunshine hours, with 217 hours illuminating the month. This drop follows a vibrant summer, where bright, sun-soaked days peaked at 300 hours in May and remained plentiful through August. The pattern of increasing daylight hours throughout spring and summer, peaking in May, transitions into the softer light of autumn. While October offers fewer sunny days than its immediate predecessors, it still maintains a significant amount of sunshine compared to the winter months ahead. This trend reflects a gradual shift into cooler temperatures and shorter days, inviting a nostalgic embrace of the season's changing colors.
In October, Nagano experiences a 35% chance of sunny weather, marking a pleasant shift as the region transitions into autumn. This month typically enjoys more sunshine than the summer months of June and August, which both hover around 22%, suggesting that October brings a welcome increase in clear skies. Interestingly, this likelihood is higher than the spring months of January and March, yet lower than the promising 42% of November. As the leaves begin to change colors and cooler temperatures set in, October offers a delightful balance of sunshine, making it an ideal time for outdoor activities amidst the beautiful fall foliage.
As autumn settles in, October in Nagano, Japan, sees a gentle decline in daylight, with approximately 11 hours of sunlight gracing the region each day. This gradual reduction follows a summer peak, where the daylight stretched up to 14 hours in June and July. The interplay of seasons is evident as days shorten, transitioning from the bright vibrancy of summer to the softer hues of fall. After enjoying the extended daylight of spring and summer, October marks a return to shorter days, setting the stage for the cozy, reflective months ahead. With each day growing a bit shorter, residents and visitors alike can embrace the enchanting autumn scenery that Nagano has to offer.
As October approaches in Nagano, Japan, the gentle breeze of the autumn wind begins to weave through the landscape, with an average speed of 1.6 m/s (4 mph). This marks a subtle shift from the calmer summer months, where winds hovered around 1.3 to 1.5 m/s. With the onset of fall, October's winds provide a refreshing contrast, reminiscent of the vibrant changing leaves, while remaining relatively mild compared to the gustier conditions of spring. Interestingly, as the year progresses, the average wind speeds remain consistent at 1.6 m/s through both October and November, suggesting a period of stability in the breeze before winter's chill takes hold. This seasonal transition invites a perfect opportunity to enjoy the crisp air and breathtaking autumn scenery, as Nagano embraces the tranquil winds of the fall.
Weather in Nagano varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Nagano, focusing on differences in temperature, rainfall, humidity, and UV levels.
October features a milder temperature spectrum, with nighttime lows around 2°C (36°F) and daytime highs reaching up to 28°C (82°F). The month typically experiences high humidity at 87% and significant precipitation, averaging 217 mm (8.5 in) over 18 days. In contrast, January brings much colder conditions, with temperatures dipping to a minimum of -15°C (6°F) and a maximum of 10°C (51°F). While January has less total precipitation at 144 mm (5.7 in) over 21 days, the humidity remains comparable at 88%. To learn more about January weather in Nagano, check out Nagano weather in January.
When comparing the weather in October and February, there is a stark contrast in temperatures and overall conditions. October experiences milder temperatures, ranging from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), with an average of 13°C (56°F). The month also sees considerable precipitation, totaling 217 mm (8.5 in) over 18 days, maintaining a high humidity level of 87%. In contrast, February is significantly colder, with temperatures dropping to a minimum of -14°C (7°F) and reaching a maximum of 16°C (61°F), averaging -1°C (30°F). Precipitation in February is lower at 129 mm (5.1 in) over 19 days, and humidity levels remain just slightly lower at 86%. For a detailed look at the February weather in Nagano, you can visit Nagano weather in February.
October and March present quite contrasting weather conditions. In October, temperatures range from a chilly 2°C (36°F) at night to a warm 28°C (82°F) during the day, averaging around 13°C (56°F). The month is also marked by substantial precipitation, with 217 mm (8.5 in) over 18 days, contributing to a high humidity level of 87%. In contrast, March experiences colder temperatures, with minimums dropping to -9°C (16°F) and an average of only 4°C (39°F), but it can reach highs of 21°C (70°F). Precipitation in March is lower, totaling 133 mm (5.2 in) across the same number of days, and humidity slightly decreases to 81%. For more detailed insights into the weather specifics of March, you can visit Nagano weather in March.
October and April weather in Nagano showcase distinct seasonal characteristics. In October, temperatures range from a chilly minimum of 2°C (36°F) to a warm maximum of 28°C (82°F), with an average of 13°C (56°F). This month also sees substantial precipitation, totaling 217 mm (8.5 in) over 18 days, accompanied by high humidity levels of 87%. In contrast, April experiences cooler temperatures, with a minimum of -5°C (22°F) and an average of 9°C (48°F), peaking at 27°C (81°F). The total precipitation is lower at 141 mm (5.5 in) over 16 days, resulting in reduced humidity at 78%. For more information about April weather in Nagano, visit Nagano weather in April.
In comparing the weather of October and May, October tends to be cooler and wetter. While October features minimum temperatures around 2°C (36°F) and average highs reaching 28°C (82°F), May starts with slightly lower minimums of 0°C (33°F) but can peak at 31°C (88°F), making it feel warmer overall. Precipitation is higher in October, with 217 mm (8.5 in) over 18 days, compared to May's 160 mm (6.3 in) across 16 days. Additionally, October has a higher humidity level at 87%, compared to May's 81%. For more details on May weather, you can check out Nagano weather in May.
When comparing the weather in October and June, October tends to be cooler, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 28°C (82°F). In contrast, June enjoys warmer weather, with temperatures typically ranging from a minimum of 5°C (41°F) to a maximum of 30°C (87°F). Both months experience similar levels of precipitation, with October receiving 217 mm (8.5 inches) and June slightly less at 171 mm (6.7 inches), both spread over 18 days. Notably, humidity levels remain high in both months, hovering around 87% in October and 88% in June, creating a moist atmosphere. For a more detailed look at June weather specifics, visit Nagano weather in June.
In comparing the weather of October and July, October experiences significantly cooler temperatures, with a minimum of 2°C (36°F) and an average of 13°C (56°F), compared to July's milder minimum of 15°C (60°F) and an average of 22°C (73°F). While July offers warmer maximum temperatures reaching up to 33°C (91°F), October's highs peak at 28°C (82°F). Notably, October sees a higher frequency of rainy days with 18 days of precipitation, although July records heavier rainfall at 341 mm (13.4 in) across 25 days. Humidity levels are also quite high in both months, with October at 87% and July slightly higher at 92%. For more details on the weather conditions in July, you can check Nagano weather in July.
In comparing the weather between August and October, notable differences emerge. August boasts warmer temperatures, with a minimum of 11°C (52°F) and an average high of 35°C (95°F), making it the hottest month. In contrast, October's temperatures are cooler, ranging from a minimum of 2°C (36°F) to a maximum of 28°C (82°F). Precipitation levels are also significant; October experiences more rainfall at 217 mm (8.5 in) over 18 days, compared to August's 198 mm (7.8 in) over 23 days. Additionally, humidity is slightly higher in August at 92%, while October maintains a humidity level of 87%. For detailed insights about August weather, visit Nagano weather in August.
In comparing the weather patterns of October and September, it's clear that October brings cooler temperatures, with a minimum of 2°C compared to September's 7°C. The average temperature in October is also lower at 13°C, while September enjoys a warmer average of 19°C. Although both months experience significant rainfall, October has a slightly higher total precipitation of 217 mm over 18 days, compared to September's 194 mm over 19 days. Humidity levels remain high in both months, with October at 87% and September at 89%. For more detailed insights on September weather, you can visit Nagano weather in September.
October and November exhibit marked differences in weather patterns. October sees average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), while November temperatures drop significantly, with a minimum of -8°C (19°F) and an average of 7°C (44°F). Precipitation also varies, as October receives 217 mm (8.5 in) over 18 days, compared to November's 94 mm (3.7 in) across 15 days. Humidity levels are relatively similar, with October at 87% and November slightly lower at 85%. For more detailed information, check out Nagano weather in November.
In October, the weather is generally milder, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 28°C (82°F), resulting in an average of 13°C (56°F). This month also sees a significant amount of rainfall, with 217 mm (8.5 in) of precipitation over 18 days, coupled with high humidity levels at 87%. In contrast, December brings a much colder climate, featuring temperatures that dip as low as -10°C (14°F), with an average of just 1°C (34°F) and highs reaching 19°C (66°F). Although December experiences less rainfall, totaling 151 mm (6.0 in) over 20 days, the humidity remains similar at 86%. For more detailed insight into the specific weather conditions in December, you can visit Nagano weather in December.
As October unfolds in Nagano, the landscape transforms with vibrant autumn hues, marked by a notable shift in weather compared to other months. With daytime temperatures peaking at a comfortable 28°C, evenings cool down to a brisk 2°C, inviting residents and visitors alike to embrace the seasonal change. This month is characterized by higher humidity and significant rainfall, averaging 217 mm, which contributes to the region's lush scenery. Although the rain graces Nagano with its presence on nearly 18 days, it also brings a refreshing contrast to the typically drier months preceding it. For those interested in exploring more about seasonal variations, visit Nagano Climate for comprehensive insights.