Last updated: August 21, 2025
In October, Yamaguchi, Japan, experiences a delightful mix of autumnal warmth and crispness. The maximum temperature can reach up to 30°C (87°F), while the average hovers around a comfortable 19°C (66°F), providing ideal conditions for outdoor activities. As temperatures drop, the minimum can fall to 8°C (46°F), inviting cozy evenings. However, be prepared for some rain, as the region receives approximately 120 mm (4.7 in) of precipitation over about 10 days this month, contributing to a humidity level of 79% that enhances the vibrant fall foliage. This transitional period showcases Yamaguchi's natural beauty, making it a perfect time for exploration and appreciation of the season.
In October, Yamaguchi, Japan, showcases a delightful transition in temperature as autumn settles in. With minimums averaging 8°C (46°F), the days begin to cool, inviting cozy layers. The average temperature rises to a comfortable 19°C (66°F), making it an ideal time for outdoor activities and enjoying the vibrant fall foliage. With maximums soaring up to 30°C (87°F) early in the month, warm days linger for those seeking sunny experiences before winter's chill sets in. This month reflects a balanced blend of warmth and coolness, capturing the essence of autumn while hinting toward the chillier months to come.
In October, Yamaguchi experiences a notable shift in precipitation patterns, with 120 mm (4.7 in) of rainfall spread over approximately 10 days. This marks a decline from the wet months of July and August, which recorded significantly higher totals of 340 mm (13.4 in) and 265 mm (10.4 in) respectively. As autumn unfolds, the rainfall becomes less frequent, reflecting a seasonal transition that paves the way for drier November, which sees just 41 mm (1.6 in) over a mere 5 days. This gradual reduction in precipitation not only highlights the shift in weather but also sets the stage for the crisp, clear days typical of late fall in Yamaguchi.
As October arrives in Yamaguchi, Japan, the humidity begins to moderate slightly, settling at a comfortable 79%. This marks a transition from the sweltering, peak summer humidity levels of July and August, which soared to a staggering 95% and 93%, respectively. Following the intense humidity of the summer months, September retains a noteworthy 84%, but by October, residents can enjoy a bit of relief as the moisture in the air decreases. However, this slight decline doesn't drop below the levels seen in the earlier months of the year, such as January and February which ranged from 76% to 72%. Overall, October's humidity reflects a gradual shift towards the more temperate conditions that characterize Yamaguchi's autumn, setting the stage for cooler and drier winter months ahead.
As October arrives in Yamaguchi, Japan, the UV Index settles at 7, marking a shift to a high exposure category. This indicates that while sun protection is still essential, you can enjoy slightly longer outdoor activities with a burn time of around 25 minutes. Compared to the preceding months, the UV levels have moderated from the extreme readings of 11 and 12 seen during the summer, allowing for safer sun exposure. However, with autumn's golden sun, it's crucial to remain vigilant, especially as the year begins to wind down. For ongoing updates and details, check out the Yamaguchi UV Index.
UV Risk Categories
As October unfolds in Yamaguchi, Japan, the city bask in a gentle glow, recording an impressive 256 hours of sunshine. This month, while slightly lower than the sun-soaked days of August at 303 hours, remains robust compared to the earlier months of the year. A gradual decline from the summer's peak is evident, yet October retains a vibrant warmth, bridging the gap between the lingering summer and the forthcoming chill of winter. The consistent sunshine throughout the months—from January's 174 hours to May's 300 hours—highlights a clear trend of increasing brightness, peaking in mid-summer, before tapering off. As the season transitions, October's sunny demeanor serves as a gentle reminder of nature's cyclical beauty, inviting both locals and visitors to savor the crisp, sun-kissed days of fall.
As October rolls in, Yamaguchi, Japan, enjoys a notable shift in weather patterns, boasting a 58% chance of sunny days, the highest of the year. This delightful spike contrasts sharply with the summer months, where sunshine is less frequent, peaking at just 25% in August and dipping to 22% in July. Following a trend of increasing sunny days from September's 30%, October signals the onset of clearer skies, making it an ideal time for outdoor activities and explorations. The month stands out not only for its beautiful autumn foliage but also for its increased likelihood of pleasant weather, providing residents and visitors alike a refreshing break from the typical rainy season that haunt the earlier months.
As autumn settles in Yamaguchi, Japan, October brings a gentle shift in daylight hours, offering 11 hours of sunlight each day. This marks a gradual decline from the summer peak of 14 hours in June and July, showcasing the region's transition into cooler months. The daylight duration begins its descent after a vibrant summer, dipping slightly throughout the fall, with November continuing this trend as it further reduces to 10 hours. With October's balanced light, residents enjoy a comfortable blend of day and night, perfectly suited for outdoor activities amidst the stunning autumn foliage. As the days shorten, the charm of Yamaguchi transforms, inviting a cozy, reflective ambiance as the year draws to a close.
As October arrives in Yamaguchi, Japan, the gentle embrace of autumn is accompanied by a noticeable shift in wind patterns. With an average wind speed of 2.4 m/s (5 mph), October experiences one of the calmest months of the year, a stark contrast to the more breezy conditions seen in the preceding months. This gradual decrease from the summer’s lighter winds mirrors a trend observed throughout the year, where wind speeds generally decline from the lively gusts of late winter and spring to the more tranquil conditions of late fall. The shifting breeze in October not only signifies the transition to cooler weather but also enhances the serene beauty of the autumn landscape, inviting both locals and visitors to revel in the peaceful ambiance of this picturesque season.
Weather in Yamaguchi varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Yamaguchi, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present contrasting weather profiles, with October offering milder temperatures and higher humidity. In October, daytime temperatures can reach up to 30°C (87°F), with an average of 19°C (66°F) and a minimum of 8°C (46°F). This month also experiences significant rainfall, totaling 120 mm (4.7 in) over about 10 days. In stark contrast, January brings colder temperatures, with maximums reaching just 16°C (60°F) and averages around 5°C (42°F). The minimum temperature can drop to -4°C (25°F). Rainfall in January is less frequent and lighter, at 58 mm (2.3 in) over 9 days, and humidity levels are slightly lower at 76%. For more details on January's weather, visit Yamaguchi weather in January.
October and February present stark contrasts in weather patterns. October typically enjoys milder temperatures, with averages hovering around 19°C (66°F) and a maximum of 30°C (87°F), while February is much cooler, with an average temperature of only 6°C (43°F) and a chilling minimum of -3°C (27°F). Precipitation is more prominent in October, with 120 mm (4.7 in) falling over 10 days compared to February's 78 mm (3.1 in) over 9 days. Additionally, October tends to be more humid at 79%, while February's humidity is slightly lower at 72%. For a closer look at February's climate specifics, check out Yamaguchi weather in February.
October and March present contrasting weather patterns. In October, temperatures typically range from a minimum of 8°C (46°F) to a maximum of 30°C (87°F), with an average of 19°C (66°F), while humidity is higher at 79%. This month also sees around 120 mm (4.7 in) of precipitation over about 10 days. In contrast, March experiences cooler temperatures, with a minimum of -1°C (31°F), an average of 10°C (51°F), and a maximum of 22°C (72°F). Although it is slightly wetter, with 130 mm (5.1 in) of rain over approximately 12 days, the humidity is lower at 69%. For more detailed insights into March weather, you can visit Yamaguchi weather in March.
In comparing the weather of October and April, October presents a wider range of temperatures, with a minimum of 8°C and a maximum reaching up to 30°C, resulting in an average of 19°C. In contrast, April is cooler, with temperatures ranging from a minimum of 1°C to a maximum of 26°C, and an average temperature of 14°C. Both months experience similar levels of precipitation, around 120-122 mm, spread over approximately 10 days, but October is slightly more humid at 79%, compared to April's 75%. For those interested in more specific details about April weather, you can find additional information here: Yamaguchi weather in April.
In comparing October and May weather, both months experience similar average temperatures, hovering around 19°C (66°F) to 19°C (67°F), with maximum temperatures reaching up to 30°C (87°F). However, October tends to be slightly warmer at night with a minimum of 8°C (46°F) compared to May's cooler 5°C (42°F). Precipitation is fairly high in both months, with October receiving 120 mm (4.7 in) over approximately 10 days and May slightly wetter at 136 mm (5.4 in) over 11 days. Humidity is also higher in May at 84%, compared to October's 79%. For more detailed insights about the weather in May, you can visit Yamaguchi weather in May.
In comparing the weather of October and June, October tends to have milder temperatures with a minimum of 8°C and an average of 19°C, while June experiences slightly warmer conditions with a minimum of 12°C and an average of 22°C. Both months showcase substantial rainfall, but June is wetter, receiving 198 mm compared to October's 120 mm, and experiences precipitation on more days—13 in June versus 10 in October. Additionally, humidity levels are higher in June at 88%, compared to October's 79%. For a more detailed look at June weather specifics, you can check Yamaguchi weather in June.
October's weather is notably milder compared to the sweltering heat of July. With average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 30°C (87°F), October offers a more comfortable climate, especially for outdoor activities. In contrast, July experiences higher temperatures, with lows of 17°C (63°F) and scorching highs reaching up to 37°C (99°F), making it one of the hottest months of the year. Additionally, July has significantly more precipitation, with around 340 mm (13.4 in) over approximately 20 days, resulting in higher humidity levels at 95%. October, while still humid at 79%, is generally drier, receiving only 120 mm (4.7 in) of rain over about 10 days. For more details on July's weather specifics, check out Yamaguchi weather in July.
October's weather is marked by cooler temperatures, with averages around 19°C (66°F) and a maximum reaching 30°C (87°F), offering a pleasant respite from the heat. In contrast, August tends to be much warmer, with minimum temperatures starting at 19°C (66°F) and peak highs soaring to 38°C (100°F). While October experiences relatively moderate precipitation of 120 mm (4.7 in) over about 10 days and lower humidity at 79%, August is wetter, with a total of 265 mm (10.4 in) falling over 15 days and higher humidity levels reaching 93%. For a closer look at August's weather specifics, check out Yamaguchi weather in August.
October weather shows a noticeable shift compared to September, with cooler temperatures and reduced humidity. The minimum temperature drops to 8°C (46°F), while the maximum reaches 30°C (87°F), making it generally more comfortable than September, which experiences a minimum of 13°C (56°F) and peaks at a hotter 35°C (95°F). Additionally, October sees a decrease in precipitation, totaling 120 mm (4.7 in) over 10 days, compared to September's heavier rainfall of 240 mm (9.4 in) across 14 days. Humidity also slightly decreases in October to 79%, compared to 84% in September. For a closer look at September weather specifics, visit Yamaguchi weather in September.
October typically boasts warmer temperatures, with minimums around 8°C (46°F) and maximums reaching 30°C (87°F), while November experiences cooler conditions, with minimums dropping to 0°C (32°F) and maximums peaking at 25°C (78°F). Additionally, October tends to have higher precipitation levels, averaging 120 mm (4.7 in) over about 10 days, compared to November's milder 41 mm (1.6 in) over just 5 days. Humidity remains relatively stable, hovering at 79% in October and slightly decreasing to 76% in November. For a more detailed look at November's weather, visit Yamaguchi weather in November.
October and December present contrasting weather patterns, reflecting the transition from autumn to winter. In October, temperatures range from a minimum of 8°C (46°F) to a maximum of 30°C (87°F), with an average of 19°C (66°F). This month is characterized by relatively high humidity at 79% and significant rainfall, totaling 120 mm (4.7 in) over about 10 days. In contrast, December sees much cooler temperatures, dipping down to a minimum of -1°C (31°F) and averaging only 7°C (46°F), while the maximum reaches 21°C (70°F). Precipitation decreases to 67 mm (2.6 in) over 8 days, accompanied by a slight decrease in humidity to 75%. For more detailed insights, you can refer to Yamaguchi weather in December.
October in Yamaguchi brings a refreshing change from the sweltering summer months, offering a delightful blend of mild temperatures and vibrant autumn colors. As the average temperature settles comfortably around 19°C, the warmth still lingers, but the days of intense heat give way to cooler evenings. With an average humidity of 79%, the air feels crisp yet invigorating, creating the perfect backdrop for outdoor exploration. While October experiences a moderate amount of rainfall, it is not as torrential as the rainy season, allowing for plenty of dry days to enjoy the stunning fall foliage. For those looking to discover the nuances of Yamaguchi's climate throughout the year, visit Yamaguchi Climate for more insights.