October Weather in Yamagata, Japan

Last updated: August 21, 2025

In October, Yamagata, Japan experiences a striking transition in weather as it bids farewell to summer warmth. The maximum temperature can reach a pleasant 27°C (81°F), while the average hovers around a crisp 13°C (56°F), dipping to a chilly minimum of 2°C (36°F). This month also brings about notable precipitation, with 151 mm (5.9 in) of rain falling over 13 days, contributing to an 82% humidity level that envelops the region in a misty embrace. As nature dons her autumn hues, residents and visitors alike are encouraged to enjoy the vibrant landscape and prepare for the cooler, rainy days ahead.

October Temperature in Yamagata

In October, Yamagata, Japan, transitions into the embrace of autumn, with temperatures cooling notably as the month progresses. The minimum temperature hovers around 2°C (36°F), while the average climbs to a crisp 13°C (56°F), peaking at a still pleasant 27°C (81°F). This month marks a significant drop from the summer highs of previous months, reflecting a shift from the heat of August's 36°C (97°F) to the refreshing coolness that foreshadows winter. The weather invites vibrant autumn foliage, making October an ideal time to experience Yamagata’s stunning landscapes as they burst into a spectrum of fall colors, enhancing the charm of this serene region.

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

The chart illustrates October temperature patterns in Yamagata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yamagata, 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).
JanFebMarAprMayJunJulAugSepOctNovDec293038475965737567564534
Data source: Temperature data for Yamagata 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 Yamagata

In October, Yamagata experiences a notable increase in precipitation, with 151 mm (5.9 in) of rain recorded over approximately 13 days. This marks a significant rise from September's 110 mm (4.3 in), reflecting the onset of autumn’s more humid conditions. The month stands out as a transitional period, bridging the wetter summer months—such as July with its hefty 239 mm (9.4 in)—and the drier winter, where precipitation begins to taper off. As leaves turn and the landscape transforms, October's rainfall nourishes the vibrant fall foliage, adding to the region's picturesque scenery while heralding the approach of colder weather.

October Precipitation Trends in Yamagata

The chart displays monthly precipitation patterns in Yamagata, 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 Yamagata, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec125116119116939823919411015180146
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Yamagata

As October rolls into Yamagata, Japan, the humidity settles at a moderate 82%, marking a gentle transition from the sultry, high humidity months of summer, where levels reached an impressive 92% in both July and August. After the peak summer months, which often left residents feeling swathed in warmth and moisture, the autumn months bring a slightly drier atmosphere. September shows a notable dip to 86%, paving the way for October's manageable levels that still echo the lingering patterns of the more humid summer. This gradual decrease results in a refreshingly crisp ambiance, ideal for enjoying the stunning fall foliage, while still maintaining a touch of the characteristic Japanese humidity that peaks during the year. Interestingly, post-October, the humidity levels continue to draw back, settling around 79% in November, allowing the season to shift in both feel and experience.

October Average Humidity in Yamagata

This chart illustrates the average monthly humidity levels in Yamagata, 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 Yamagata 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 Yamagata

In October, Yamagata, Japan experiences a moderate UV Index of 6, indicating a high exposure category with a burn time of 25 minutes. As summer wanes, the UV Index gradually decreases from the extreme levels seen in July and August, where it peaked at 11. This transition highlights the changing seasons, as the very high levels in the spring months, notably April and May, shift towards more moderate levels in fall. As you enjoy the autumn foliage, remember to stay protected from the sun by using sunscreen and wearing appropriate clothing. For more details on UV exposure trends, visit Yamagata UV Index.

Maximum UV Index Levels in Yamagata for October

The chart shows the monthly maximum UV Index (UVI) for Yamagata 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 Yamagata typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101011119643
Data source: Yamagata 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 Yamagata

As October unfolds in Yamagata, Japan, the region basks in 211 hours of sunshine, marking a seasonal transition from the warmth of late summer to the crispness of autumn. This figure reflects a gentle decline compared to the vibrant summer months, which peak at 295 hours in May and remain strong through August. Interestingly, October's sunshine hours closely mirror those of November, showcasing a pattern of steady light as the year winds down. The month also signals a noticeable decrease from September, which enjoyed 248 hours, hinting at the approaching winter months. This gradual shift underscores a beautiful change in scenery, as golden leaves dance in the sunlight, inviting locals and visitors alike to revel in the crisp, clear days of Yamagata's fall.

Monthly Sunshine Duration in Yamagata: October Highlighted

The October sunshine duration represents the total number of hours Yamagata 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.
JanFebMarAprMayJunJulAugSepOctNovDec159h208h251h267h295h283h264h281h248h211h213h189h
Data source: Yamagata October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yamagata During October

October in Yamagata, Japan, brings a promising 28% chance of sunny weather, making it a delightful time for outdoor activities. As the region transitions from the vibrant colors of autumn to the more subdued tones of winter, October stands out with a slightly higher likelihood of sunshine compared to the summer months, which hover around the 20% mark. This increase, paired with the mild temperatures of early fall, creates an inviting atmosphere for residents and visitors alike. Interestingly, November sees a further rise to 36%, hinting at a captivatingly clear end of the fall season. Thus, while October may not promise relentless sunshine, it certainly offers a noteworthy invitation to enjoy the beauty of Yamagata's autumn landscape.

Percentage of Sunny Days in October in Yamagata

The chart illustrates the percentage of sunny days in Yamagata 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 Yamagata experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%29%26%38%25%20%20%17%25%28%36%22%
Data source: Yamagata October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yamagata in October

In Yamagata, Japan, the daylight duration exhibits a dynamic rhythm throughout the year, peaking in the vibrant spring and early summer months. Transitioning from January's modest 9 hours, daylight steadily increases, reaching a delightful 14 hours by May and sustaining this brightness through June and July. As autumn approaches, the sunlight begins to wane, dipping to 13 hours in August and gradually declining to 11 hours by October. This month marks a subtle shift, as days grow shorter and the rich fall colors emerge, capturing the essence of seasonal change. By the time November arrives, daylight retreats to 10 hours, signaling the onset of winter's embrace.

Average Daylight Hours in Yamagata for October

The chart illustrates the variation in daylight duration in Yamagata throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 49m10h 45m11h 57m13h 11m14h 13m14h 45m14h 29m13h 34m12h 24m11h 10m10h 6m9h 33m
Data source: Yamagata daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Yamagata

In October, the winds in Yamagata, Japan, begin to stir with a subtle increase, averaging around 2.0 m/s (4 mph). This gentle breeze marks a transition from the stifling heat of summer as it cools the air and dances through the autumn leaves. While the wind speeds show a modest rise compared to the calmer months of July (1.4 m/s) and August (1.7 m/s), they remain relatively low, reflecting the overall trend of gradual wind activity throughout the year. This shift heralds the approach of winter, as November promises a slight uptick with 2.1 m/s, hinting at the chillier days ahead. Thus, October serves as a perfect interlude, balancing the warmth of early autumn with the anticipation of the cold to come.

Average October Wind Speed in Yamagata

The chart displays monthly wind speed patterns in Yamagata, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.53.22.62.72.41.61.41.71.82.0 m/s2.12.7
Data source: Yamagata October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Yamagata Compares to Other Months

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

October and January present stark contrasts in weather. In October, temperatures range from a mild 2°C (36°F) at night to a warm 27°C (81°F) during the day, with an average of 13°C (56°F). This month sees considerable rainfall, with 151 mm (5.9 in) spread over 13 days and an average humidity of 82%. Conversely, January is characterized by colder conditions, with temperatures dipping to a minimum of -16°C (4°F) and only reaching a maximum of 8°C (46°F), averaging -2°C (29°F). Although January receives slightly less precipitation at 125 mm (4.9 in) over 21 days, the humidity remains high at 80%. For a more detailed look at January weather patterns, you can visit Yamagata weather in January.

October and February present contrasting weather patterns that highlight the transition from autumn to winter. In October, temperatures range from a mild 2°C (36°F) at night to a warm 27°C (81°F) during the day, with an average of 13°C (56°F). This month experiences significant rainfall, totaling 151 mm (5.9 in) over 13 days, accompanied by high humidity at 82%. In contrast, February is characterized by much colder temperatures, with nighttime lows plummeting to -14°C (7°F) and daytime highs reaching a maximum of 11°C (52°F), resulting in an average of -1°C (31°F). Precipitation is less frequent, totaling 116 mm (4.5 in) over 20 days, and humidity remains relatively lower at 79%. For more details on February conditions, you can check Yamagata weather in February.

When comparing the weather in October and March, October generally presents milder temperatures, with an average of 13°C (56°F) and highs reaching up to 27°C (81°F), whereas March is notably cooler, with averages around 4°C (39°F) and maximums of only 19°C (66°F). Precipitation levels are also significant in both months, with October receiving 151 mm (5.9 in) over 13 days, compared to March’s 119 mm (4.7 in) across 18 days. Humidity remains relatively high in October at 82%, while March experiences slightly less humidity at 77%. For a closer look at March weather specifics, visit Yamagata weather in March.

October and April present contrasting weather patterns. In October, temperatures range from a chilly minimum of 2°C (36°F) to a pleasant maximum of 27°C (81°F), with an average around 13°C (56°F). This month is characterized by higher humidity at 82% and significant rainfall, totaling 151 mm (5.9 in) over 13 days. In contrast, April experiences a broader temperature range, with lows dropping to -5°C (24°F) and highs reaching 25°C (77°F), resulting in an average of 8°C (47°F). The precipitation is slightly lower at 116 mm (4.6 in), also spread across 13 days, and the humidity is more moderate at 75%. For a closer look at the conditions in April, you can visit Yamagata weather in April.

In October, the weather is characterized by cooler temperatures, with a minimum of 2°C (36°F) and an average of 13°C (56°F), peaking at a maximum of 27°C (81°F). This month experiences significant precipitation, totaling 151 mm (5.9 in) over approximately 13 days, and a humidity level of 82%. In contrast, May offers warmer conditions, with temperatures ranging from a minimum of 2°C (36°F) to an average of 15°C (59°F), and highs reaching up to 31°C (88°F). Additionally, May receives less precipitation, at 93 mm (3.7 in) over the same number of days, while maintaining a slightly lower humidity of 80%. For more detailed weather information in May, visit Yamagata weather in May.

October and June present contrasting weather patterns. In October, temperatures range from a cool 2°C (36°F) at night to a warm 27°C (81°F) during the day, with an average of 13°C (56°F). The month is characterized by significant precipitation, totaling 151 mm (5.9 in) over 13 days, and it typically has a humidity level of 82%. In contrast, June enjoys milder temperatures, with minimums of 7°C (44°F) and maximums reaching 32°C (90°F), averaging 19°C (66°F). While June also sees rain over 13 days, it has a lower total precipitation of 98 mm (3.8 in) and slightly higher humidity at 87%. For those curious about the weather specific to June, more details can be found in this link: Yamagata weather in June.

When comparing the weather in October and July, there are notable differences in temperature and precipitation. October sees a much cooler temperature range, with minimums of 2°C (36°F) and an average of 13°C (56°F), while July enjoys warmer conditions with a minimum of 14°C (57°F) and an average of 23°C (73°F). July's maximums can reach up to 33°C (92°F), significantly higher than October’s top temperature of 27°C (81°F). In terms of precipitation, July experiences more rainfall, totaling 239 mm (9.4 in) over 18 days, compared to October’s 151 mm (5.9 in) across 13 days. Humidity levels are also relatively high in both months, with July slightly more humid at 92% compared to October's 82%. For more insights on July's weather, visit Yamagata weather in July.

When comparing the weather in October and August, significant differences in temperature and precipitation emerge. October experiences cooler temperatures with a minimum of 2°C (36°F) and an average of 13°C (56°F), while August features much warmer conditions, boasting a minimum of 12°C (53°F) and an average of 24°C (75°F). Additionally, October sees a max temperature of 27°C (81°F), compared to August’s peak of 36°C (97°F). In terms of precipitation, October receives 151 mm (5.9 in) over 13 days, which is less than August's 194 mm (7.6 in) spread across 18 days. Humidity levels are also slightly lower in October at 82%, rising to 92% in August. For more details on August weather, you can visit Yamagata weather in August.

In October, the weather tends to be cooler than in September, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 27°C (81°F), compared to September's higher range of 7°C (44°F) to 33°C (91°F). Additionally, October experiences more precipitation, with 151 mm (5.9 in) over approximately 13 days, compared to September's 110 mm (4.3 in) across 14 days. Humidity levels in October hover around 82%, slightly lower than September's 86%. For a more detailed look at September's weather specifics, you can check Yamagata weather in September.

October offers a mild transition into autumn, with average temperatures ranging from a minimum of 2°C (36°F) to a pleasant maximum of 27°C (81°F). The month is characterized by relatively high humidity at 82% and significant precipitation totaling 151 mm (5.9 in) over 13 days. In contrast, November brings a noticeable drop in temperatures, with averages ranging from -6°C (22°F) to a maximum of 21°C (70°F). While the total precipitation also decreases to 80 mm (3.1 in) over 14 days, the humidity settles slightly lower at 79%, marking a shift towards colder, crisper weather. For more detailed insights, check out Yamagata weather in November.

October and December present quite contrasting weather conditions. In October, temperatures range from a minimum of 2°C (36°F) to a maximum of 27°C (81°F), while December sees a much colder temperature span, with a minimum of -10°C (13°F) and a maximum of 16°C (62°F). Although both months experience similar levels of precipitation—151 mm (5.9 in) in October compared to 146 mm (5.7 in) in December—the number of rainy days increases significantly in December, with precipitation occurring on 23 days versus 13 days in October. The humidity in October is slightly higher at 82%, while December sees a lower level of 80%. For a more detailed look at December weather specifics, you can refer to Yamagata weather in December.

Compare Yamagata's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Yamagata

As October arrives in Yamagata, the weather begins to showcase a vibrant transition from the warmth of summer to the cool embrace of autumn. The temperatures dip, averaging a comfortable 13°C, marking a departure from the summer highs, while the crisp morning air hints at the incoming chill of winter. With about 151 mm of precipitation over 13 days, October is notably wetter than many of its summer counterparts, adding a refreshing layer to the vibrant autumn scenery. Coupled with a humidity level of 82%, October offers a unique blend of moist air and cooler temperatures, inviting residents and visitors alike to enjoy the stunning fall foliage. For a deeper dive into the seasonal shifts and climatic nuances, explore Yamagata Climate.