October Weather in Aso, Japan

Last updated: August 21, 2025

In October, Aso, Japan experiences a dynamic blend of weather characteristics that showcase the beauty of autumn. With maximum temperatures reaching a comfortable 30°C (87°F), the days remain warm, while the average temperature hovers around 17°C (63°F), presenting mild evenings perfect for outdoor exploration. However, nights can be quite chilly, dipping to a minimum of 4°C (40°F). The month sees about 122 mm (4.8 in) of rainfall over 9 days, contributing to the region's lush landscapes. With humidity levels around 83%, the air carries a crispness that invigorates the senses, making October an ideal time to experience Aso's natural wonders.

October Temperature in Aso

In October, Aso, Japan, experiences a delightful transition into autumn, marked by temperatures that reflect the crispness of the season. With minimums around 4°C (40°F) and maximums peaking at 30°C (87°F), the weather is pleasantly mild, making it perfect for outdoor activities and sightseeing. The average temperature settles at a comfortable 17°C (63°F), showcasing a notable shift from the warmer months of summer. This month serves as a gentle reminder of the impending chill, as temperatures begin to dip after the summer peak, bridging the gap between the warm embrace of September and the cooler months that follow. Overall, October in Aso is a vibrant tapestry of cooler days and clearer skies, inviting visitors to immerse themselves in the breathtaking fall foliage.

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

The chart illustrates October temperature patterns in Aso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aso, 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).
JanFebMarAprMayJunJulAugSepOctNovDec384049566571777973635141
Data source: Temperature data for Aso 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 Aso

In October, Aso, Japan experiences a notable dip in precipitation, with 122 mm (4.8 in) of rainfall spread across just 9 days. This marks a shift from the intense summer rains, particularly July's peak of 452 mm (17.8 in), which tends to dominate the season. As autumn sets in, the precipitation levels decrease, allowing for more drier days compared to the earlier months. The transition highlights a pattern of diminishing rainfall as the year progresses, providing a brief respite before the winter months bring their own challenges. Despite the reduction, October still contributes to the region's lush landscapes, ensuring that Aso remains vibrant even as temperatures cool.

October Precipitation Trends in Aso

The chart displays monthly precipitation patterns in Aso, 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 Aso, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec58981371352092764522531921226070
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Aso

In October, Aso, Japan, experiences a notable humidity of 83%, reflecting a trend of elevated moisture levels that peaks during the summer months. After July's high of 92%, the humidity begins to gradually decline but remains substantial, with September holding at 84%. This slight drop in humidity continues into October, signaling a transition into the cooler autumn months. Interestingly, while the humidity remains relatively high compared to the winter months, the overall pattern shows a decrease from the sweltering peak of summer. As Aso prepares to bid farewell to the heat, the lingering warmth is complemented by the region's characteristic humidity, creating a unique atmospheric blend.

October Average Humidity in Aso

This chart illustrates the average monthly humidity levels in Aso, 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 Aso is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Aso

As October unfolds in Aso, Japan, residents and visitors experience a very high UV Index of 8, indicating it's time to stay vigilant under the sun. This month's burn time of 15 minutes highlights the waning summer intensity, yet it still demands caution, especially after the extreme months of July and August, which reached an index of 12. Following a gradual decline from peak levels, October brings a noticeable decrease in the UV Index, dropping from the extreme levels of summer, but still calls for sun protection to avoid skin damage. The trend reflects a transition into fall, where UV exposure diminishes but remains significant. For more details about UV safety throughout the year, check out Aso UV Index.

Maximum UV Index Levels in Aso for October

The chart shows the monthly maximum UV Index (UVI) for Aso 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 Aso typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121211864
Data source: Aso 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 Aso

In Aso, Japan, October greets visitors with a gentle warmth, offering a delightful 247 hours of sunshine, maintaining a close resemblance to the previous month. As autumn settles in, daylight hours gradually decrease from the summer peak of 294 hours in August. This subtle decline provides a perfect backdrop for enjoying the stunning fall foliage, as the landscape transforms into a vibrant palette of reds and golds. Notably, October shines brighter than the winter months ahead, with November and December averaging 232 and 218 hours respectively. This trend underscores Aso’s charm as an inviting autumn destination, where the balance of sun and cool breezes creates an enchanting experience for nature enthusiasts and travelers alike.

Monthly Sunshine Duration in Aso: October Highlighted

The October sunshine duration represents the total number of hours Aso 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.
JanFebMarAprMayJunJulAugSepOctNovDec178h232h259h277h283h254h262h294h248h247h232h218h
Data source: Aso October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Aso During October

In October, Aso, Japan, experiences a notable increase in sunny weather, with a 58% chance of sunshine, making it one of the brightest months of the year. This shift is significant compared to the preceding summer months, where the chances of sunny days plummet to as low as 15% in July. As the seasons transition, October's sunnier disposition stands in sharp contrast to the cloudy and rainy tendencies of June and July, suggesting a refreshing change. Furthermore, this uptick in clear skies continues into November at 50%, providing ample opportunity to enjoy Aso’s stunning landscapes adorned in autumn foliage. Embracing October's charm allows visitors to bask in the beauty of Aso while taking advantage of the region's enhanced likelihood of welcoming sunshine.

Percentage of Sunny Days in October in Aso

The chart illustrates the percentage of sunny days in Aso 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 Aso experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec43%43%37%41%27%20%15%23%29%58%50%54%
Data source: Aso October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Aso in October

In Aso, Japan, the daylight duration follows a distinct seasonal rhythm. As the year begins in January, the days are short with just 10 hours of light, a figure that remains unchanged through February. However, as spring approaches in March, daylight begins to stretch slightly to 11 hours, blossoming further into 12 hours in April and peaking at 13 hours in May. The longest days occur in mid-summer, where June and July bask in 14 hours of daylight, allowing ample time for outdoor activities. As autumn sets in, daylight gradually retreats, with August witnessing a decrease to 13 hours, and September slipping to 12 hours. By October, the days shorten further to 11 hours, mirroring the earlier months of the year. This cyclical pattern continues into November and December, where daylight returns to 10 hours, wrapping up the year in a familiar, comforting rhythm of light and darkness.

Average Daylight Hours in Aso for October

The chart illustrates the variation in daylight duration in Aso throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 13m10h 59m11h 58m12h 59m13h 50m14h 16m14h 3m13h 18m12h 21m11h 20m10h 27m10h
Data source: Aso daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Aso

As October unfolds in Aso, Japan, the gentle breeze mirrors the tranquil transition of the season, with an average wind speed of 1.8 m/s (4 mph). This drop marks a notable decline from the earlier months, typically experiencing breezes around 2.0 to 2.9 m/s. The winds begin to calm, setting a serene backdrop against the stunning autumn foliage. After a summer filled with slightly more vigorous gusts, October’s softer winds herald a time for reflection and warmth, inviting residents and visitors alike to revel in the breathtaking landscapes without the distractions of harsher winds. As the cooler days approach, it's a perfect moment for cozy gatherings and quiet contemplation in this picturesque setting.

Average October Wind Speed in Aso

The chart displays monthly wind speed patterns in Aso, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.92.22.52.41.72.32.12.01.8 m/s2.12.3
Data source: Aso October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Aso Compares to Other Months

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

October and January present distinctly different weather conditions. During October, temperatures can vary significantly, ranging from a chilly 4°C (40°F) at night to a warm 30°C (87°F) during the day, with an average of 17°C (63°F). This month also experiences higher precipitation, with an average of 122 mm (4.8 in) over about 9 days and humidity levels at 83%. In contrast, January brings much colder temperatures, with a minimum of -7°C (20°F) and a maximum of only 16°C (62°F), averaging 4°C (39°F). The precipitation is lower at 58 mm (2.3 in) over approximately 6 days, and humidity drops to 75%. For more details on January weather, check out Aso weather in January.

October and February present distinctly different weather patterns. In October, temperatures range from a mild 4°C (40°F) to a warm 30°C (87°F), with an average of 17°C (63°F). The month sees significant precipitation, totaling 122 mm (4.8 in) over approximately 9 days, contributing to a relatively high humidity of 83%. In contrast, February is notably colder, with temperatures dipping as low as -8°C (18°F) and peaking at 19°C (67°F), averaging just 5°C (41°F). This month experiences slightly less precipitation at 98 mm (3.9 in) over 10 days, with humidity levels at 71%. For more detailed insights, check out Aso weather in February.

In October, temperatures in Aso range from a chilly minimum of 4°C (40°F) to a warm maximum of 30°C (87°F), with an average temperature of 17°C (63°F). The month experiences approximately 122 mm (4.8 in) of precipitation over 9 days, accompanied by relatively high humidity levels at 83%. Conversely, March showcases a different climate, with temperatures dropping to a minimum of -3°C (27°F) and peaking at 23°C (73°F), averaging around 9°C (49°F). This month sees slightly more precipitation at 137 mm (5.4 in) across 12 days, though the humidity is lower at 71%. For more detailed insights on Aso's weather during this month, visit Aso weather in March.

October and April present distinctly different weather patterns. In October, temperatures range from a chilly 4°C (40°F) to a warm 30°C (87°F), with an average of 17°C (63°F). The month experiences approximately 122 mm (4.8 in) of precipitation over about 9 days and maintains a high humidity of 83%. In contrast, April offers cooler minimum temperatures that can drop to -1°C (31°F), while the average temperature is around 14°C (57°F) and the maximum reaches 27°C (81°F). With 135 mm (5.3 in) of precipitation spread over 10 days, the humidity during April is slightly lower at 78%. For a detailed look at Aso's weather specifically in April, you can check out Aso weather in April.

October and May both feature mild temperatures, but they differ significantly in precipitation and overall weather patterns. In October, the average temperature hovers around 17°C (63°F), with a maximum reaching up to 30°C (87°F). The month sees about 122 mm (4.8 in) of rain over 9 days, making it relatively drier compared to May. In contrast, May has a slightly cooler minimum temperature at 2°C (36°F) but an average of 18°C (65°F), with the same maximum of 30°C (85°F). However, May is much wetter, receiving 209 mm (8.2 in) of rain over 13 days, accompanied by humidity levels around 84%. For a closer look at the specific weather patterns, you can refer to Aso weather in May.

In comparing the weather between October and June, October presents a more varied temperature range, with minimums dipping to 4°C (40°F) and maximums reaching up to 30°C (87°F). In contrast, June generally offers milder temperatures, with minimums around 11°C (52°F) and highs peaking at 31°C (88°F). Precipitation is notably higher in June, with 276 mm (10.9 in) falling over 16 days, compared to October's 122 mm (4.8 in) over just 9 days. Both months experience high humidity levels, with October at 83% and June slightly higher at 86%. For more detailed information, you can visit Aso weather in June.

In comparing October and July weather, there is a noticeable shift in temperature and precipitation patterns. October experiences a more moderate range, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 30°C (87°F), while the average temperature sits at 17°C (63°F). Conversely, July is significantly warmer, with minimum temperatures of 15°C (59°F) and maximums peaking at 34°C (94°F), averaging 25°C (77°F). Precipitation levels also differ markedly; October sees 122 mm (4.8 in) of rainfall over 9 days, whereas July is much wetter, with 452 mm (17.8 in) falling across 21 days. Additionally, humidity is slightly higher in July at 92% compared to October's 83%. For more detailed insights, you can check Aso weather in July.

In comparing the weather of October and August, it's clear that October experiences a significant drop in temperatures. With a minimum of 4°C (40°F) and an average of 17°C (63°F), October offers much cooler conditions than August, which has a minimum of 16°C (62°F) and a warmer average of 26°C (79°F). Precipitation is also noteworthy; October sees 122 mm (4.8 in) of rain over 9 days, while August is considerably wetter, accumulating 253 mm (10.0 in) over 16 days. Humidity levels are relatively high in both months, with October sitting at 83% and August slightly higher at 91%. For a more detailed analysis of August weather patterns, you can check Aso weather in August.

In comparing the weather between September and October, a noticeable shift occurs as autumn approaches. September experiences higher average temperatures, ranging from a minimum of 9°C (49°F) to a maximum of 33°C (92°F) with an average of 23°C (73°F), making it warmer than October, which sees a minimum of 4°C (40°F) and a maximum of 30°C (87°F) with an average of 17°C (63°F). Additionally, September receives more rainfall, totaling 192 mm (7.6 in) over 15 days, compared to October's 122 mm (4.8 in) over just 9 days. Humidity levels remain similar, with September at 84% and October slightly lower at 83%. For more detailed insights, you can visit Aso weather in September.

In October, the weather is generally warmer with average temperatures around 17°C (63°F) and peak highs reaching up to 30°C (87°F), while nighttime lows rarely drop below 4°C (40°F). The month also sees higher precipitation levels, with 122 mm (4.8 in) of rain over about 9 days and a humidity of 83%.

In contrast, November experiences a noticeable drop in temperature, with averages around 11°C (51°F) and daily highs of 24°C (76°F), while the minimum temperatures can plunge to -4°C (25°F). The month is drier, recording only 60 mm (2.3 in) of precipitation over 8 days, and humidity decreases slightly to 81%. For more specific information, you can explore Aso weather in November.

October and December present distinctly different weather patterns. In October, temperatures can range from a mild 4°C (40°F) at night to a warm 30°C (87°F) during the day, with an average of 17°C (63°F). The month is characterized by higher humidity at 83% and an average of 122 mm (4.8 in) of precipitation over 9 days. In contrast, December sees much cooler temperatures, with nighttime lows dipping to -5°C (24°F) and daytime highs averaging around 21°C (70°F), resulting in an overall average of 5°C (41°F). Precipitation decreases significantly to 70 mm (2.8 in) over 7 days, and the humidity slightly drops to 79%. For more specific insights on weather conditions in December, you can check Aso weather in December.

Compare Aso's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Aso

As October descends upon Aso, the landscape transforms with a refreshing coolness, making it distinct from the warmer summer months. While the daytime can still reach a pleasant warmth, the nights reveal a notable chill that beckons cozy layers. Precipitation also becomes more frequent, contributing to the lush greenery that characterizes this vibrant season. With humidity levels rising, the air feels rich and alive, setting a perfect backdrop for experiencing the breathtaking autumn foliage. For a deeper dive into Aso's unique climate patterns, be sure to check out Aso Climate.