Last updated: August 21, 2025
October in Otaru, Japan unveils a tapestry of crisp autumn weather, with daytime temperatures peaking at a maximum of 22°C (71°F). The average temperature hovers around a cool 12°C (54°F), while nights can dip to a brisk 4°C (39°F). Visitors should brace for a moderate amount of rainfall, with 152 mm (6.0 in) occurring over 17 rainy days, contributing to the region's lush landscape. Humidity levels remain high at 83%, accentuating the refreshing yet slightly damp atmosphere typical of autumn in this charming coastal city. Whether you’re exploring Otaru's picturesque canals or enjoying seasonal delicacies, be prepared for variable weather that captures the essence of fall.
As October arrives in Otaru, Japan, the town begins to transition into the cooler months, showcasing a delightful crispness in the air. Temperatures during this month range from a minimum of 4°C (39°F) to a pleasant maximum of 22°C (71°F), offering a comfortable average of around 12°C (54°F). This marks a notable decline from September's warmer embrace, reflecting a steady downward trend as the seasons shift. The vibrant autumn foliage complements the mild temperatures, making it a perfect time for outdoor activities and sightseeing. As the month progresses, residents and visitors alike can enjoy the beautiful sights of nature preparing for winter, with the cool breeze heralding the approach of the cold season.
October in Otaru, Japan, witnesses a notable surge in precipitation, with 152 mm (6.0 in) of rainfall, marking it as one of the wetter months of the year. As the autumn season unfolds, the number of rainy days also increases to 17, contributing to the overall trend of heightened moisture in the air. This contrasts sharply with the drier spring months like April, which only received 76 mm (3.0 in) over 11 days. Interestingly, October's rainfall quantity sets the stage for the even wetter November, emphasizing the transition into the heavier precipitation typical of winter. The changing weather patterns highlight Otaru's rich climatic variety, making autumn not just a picturesque season, but also a markedly damp one.
In Otaru, Japan, October marks a transition in humidity levels as the summer's oppressive moisture begins to wane. With an average humidity of 83%, the air feels noticeably more comfortable compared to the sweltering 93% in July and the peak of 95% in August. As autumn sets in, humidity dips down from the late summer highs, reflecting a gradual cooling trend in the region. This change not only brings relief but also sets the stage for the crisp days of November and December, when the humidity further decreases to 79% and 80%, respectively. Overall, October provides a pleasant blend of autumn charm and manageable humidity, inviting residents and visitors alike to embrace the beauty of the season.
In October, Otaru experiences a shift in the UV Index, registering at 5, which places it in the moderate exposure category. This is a notable decrease from the peak summer months of August and September, when the UV Index soared to 10 and 8, respectively, both categorized as very high. With a burn time of 30 minutes this month, residents and visitors should remain vigilant about sun protection, as it is still important to avoid overexposure. As the year progresses towards winter, the UV levels will continue to drop, echoing the trends observed earlier in the year, where January and December boast low UV indices. For more detailed information on UV exposure throughout the year, visit Otaru UV Index.
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In October, Otaru, Japan, enjoys a delightful transition from the vibrant summer months into the briskness of autumn, recording 235 hours of sunshine. This marks a slight decrease from the previous month, but it's still a significant amount when compared to the chilly winter days ahead. Throughout the year, sunshine in Otaru typically peaks in July with 320 hours, showcasing a lovely summer glow, before gradually tapering off into the cooler months. Interestingly, October's sunshine hours reflect a resilient spirit of warmth amidst the encroaching cold, hinting at the beautiful, crisp days that define this season. As the days grow shorter, the golden hues of October sun cast a magical glow over the stunning landscapes, making it an enchanting time to explore Otaru.
When considering the likelihood of sunny weather in October in Otaru, Japan, it stands at a moderate 32%. This places October within a trend of fluctuating sunshine, particularly notable as we transition from summer to autumn. Following the high points of June and July, which boast nearly half the days sunny, October sees a drop that reflects the encroaching chill of fall. Interestingly, while not the sunniest month, October does compare favorably to earlier autumn months like September and November, which offer 39% and 34% sunshine chances, respectively. This points to a surprisingly vibrant October, perfect for those seeking a balanced mix of autumn's crisp air and occasional bright days.
In Otaru, Japan, the daylight duration experiences a dynamic ebb and flow throughout the year. As the year begins in January with a modest 9 hours of daylight, the days gradually lengthen, reaching a vibrant 14 hours by May and peaking at 15 hours in June. The summer months of July and August hold onto that warmth, with daylight slightly reducing but remaining generous. However, as October arrives, the sunlight begins to wane again, offering 11 hours of daylight, a gentle decline that signals the approach of winter. This pattern continues into November and December, when daylight dwindles back to 9 hours. Overall, Otaru's daylight duration showcases a beautiful seasonal rhythm, shifting from the cozy embrace of summer light to the introspective twilight of winter months.
As October unfolds in Otaru, Japan, the winds begin to pick up slightly, reaching an average speed of 4.0 m/s (9 mph). This marks a gentle resurgence from the summer months, where the breeze was notably milder, with average speeds falling to a mere 3.0 m/s (7 mph) in July and August. The transition to autumn stirs the atmosphere, creating a refreshing contrast to the stagnant heat of summer. Interestingly, as the year progresses towards winter, wind speeds start to climb again, with November and December recording 5.1 m/s (11 mph) and 5.4 m/s (12 mph) respectively. This gradual increase suggests that while October offers a softening of summer's grip, it also heralds the arrival of brisker winds, inviting both locals and visitors to embrace the changing seasons along Otaru's stunning coastline.
Weather in Otaru varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Otaru, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present starkly contrasting weather conditions. In October, temperatures range from a mild 4°C (39°F) to a pleasant 22°C (71°F), accompanied by significant rainfall totaling 152 mm (6.0 in) over 17 days, and humidity sits at a high 83%. In contrast, January experiences much colder temperatures, with minimums plunging to -12°C (10°F) and maximums only reaching 4°C (40°F). Precipitation is less abundant at 87 mm (3.4 in) over 20 days, and humidity remains relatively high at 84%. For those interested in a deeper dive into January weather patterns, please check this link: Otaru weather in January.
October and February present starkly contrasting weather patterns. In October, temperatures range from a minimum of 4°C (39°F) to a comfortable maximum of 22°C (71°F), with an average temperature of 12°C (54°F). This pleasant fall month also sees considerable precipitation, with around 152 mm (6.0 in) falling over 17 days, and humidity levels remain high at 83%. In contrast, February experiences much colder temperatures, with lows plunging to -13°C (8°F) and an average of -3°C (26°F), peaking at only 6°C (44°F). Despite having lower total precipitation at 99 mm (3.9 in), it is spread over 22 days, accompanied by the same high humidity of 83%. For more detailed information about February weather in Otaru, visit Otaru weather in February.
In October, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (71°F), with an average of 12°C (54°F), making it noticeably milder compared to March. In contrast, March sees much colder conditions, with temperatures dropping as low as -7°C (19°F) and averaging just 1°C (34°F), peaking at 12°C (54°F). Precipitation is also more significant in October, receiving 152 mm (6.0 in) over 17 days, while March experiences 95 mm (3.7 in) across 16 days, suggesting a slightly drier early spring. The humidity levels are similar, with October at 83% and March at 81%, contributing to the overall dampness of both months. For a closer look at what to expect, check out Otaru weather in March.
When comparing the weather in October and April, it's clear that October tends to be warmer and wetter than April. In October, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (71°F), with an average temperature of 12°C (54°F). The month also sees significant precipitation, averaging 152 mm (6.0 in) over approximately 17 days, along with a humidity level of 83%. In contrast, April experiences cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 17°C (63°F), averaging around 5°C (40°F). The precipitation in April is lighter at 76 mm (3.0 in) spread over 11 days, accompanied by a slightly lower humidity of 81%. For more information on the specific weather conditions in April, you can visit Otaru weather in April.
October and May offer contrasting weather experiences. October sees a wider temperature range, with minimums at 4°C and maximums reaching 22°C, while May presents slightly cooler temperatures, with minimums at 3°C and maximums peaking at 26°C. Precipitation is more prevalent in October, totaling 152 mm over 17 days, compared to May's 90 mm over 13 days. Humidity levels are relatively similar, with October at 83% and May slightly higher at 86%. For more detailed information, you can check Otaru weather in May.
When comparing the weather in October to June, several notable differences emerge. October typically experiences cooler temperatures, ranging from a minimum of 4°C (39°F) to a maximum of 22°C (71°F), with an average of 12°C (54°F). This month also sees increased precipitation, totaling 152 mm (6.0 in) over 17 days, contributing to a humidity level of 83%. In contrast, June has slightly warmer temperatures, with a minimum of 6°C (44°F) and a maximum of 24°C (75°F), averaging 14°C (58°F). Precipitation is less frequent, totaling 112 mm (4.4 in) across 12 days, while humidity is slightly higher at 87%. For a closer look at the weather specifics in June, you can refer to Otaru weather in June.
When comparing the weather in October and July, a distinct contrast in temperature and precipitation becomes evident. In October, temperatures range from a chilly minimum of 4°C (39°F) to a comfortable maximum of 22°C (71°F), with an average of 12°C (54°F). This month experiences a significant amount of rainfall, totaling 152 mm (6.0 in) over 17 days, and a humidity level of 83%.
In contrast, July boasts warmer temperatures, with a minimum of 9°C (49°F), an average of 20°C (68°F), and a maximum of 28°C (82°F). While it is generally drier than October, July still sees considerable precipitation, amounting to 101 mm (4.0 in) over 12 days, and a high humidity level of 93%. For those wanting to explore what July has to offer in Otaru, more details can be found at Otaru weather in July.
October weather contrasts significantly with August, showcasing a marked drop in temperatures. In October, temperatures range from a chilly minimum of 4°C (39°F) to a pleasant average of 12°C (54°F), peaking at 22°C (71°F). In contrast, August enjoys much warmer conditions, with minimums around 14°C (58°F) and highs reaching up to 29°C (85°F). While both months experience substantial rainfall, October sees slightly less precipitation at 152 mm (6.0 in) over 17 days compared to August's 169 mm (6.7 in) over 14 days. Humidity remains high in both months, with October at 83% and August peaking at 95%. For more detailed insights, you can visit Otaru weather in August.
October weather marks a noticeable shift from September, with average temperatures dropping from a comfortable 18°C (65°F) to 12°C (54°F). While September enjoys milder min temperatures around 10°C (50°F), October’s minimum dips to 4°C (39°F). Additionally, October experiences increased precipitation, totaling 152 mm (6.0 in) over 17 days, compared to September's 117 mm (4.6 in) across 14 days. Humidity remains relatively high in both months, with October at 83% and September at 88%. For a more detailed comparison, you can visit Otaru weather in September.
October and November present a noticeable shift in weather patterns, with October showcasing milder temperatures and generally more pleasant conditions. During October, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (71°F), with an average of 12°C (54°F). In contrast, November introduces cooler averages, with temperatures dropping to a minimum of -5°C (23°F) and peaking at 15°C (59°F), averaging around 5°C (42°F).
Precipitation also increases slightly from October to November, rising from 152 mm (6.0 in) over 17 days to 167 mm (6.6 in) across 22 days in November, indicating a trend towards wetter conditions as autumn progresses. Humidity remains relatively high in both months, with October at 83% and November dipping slightly to 79%. For more detailed information on the weather during this month, you can visit Otaru weather in November.
October and December present starkly contrasting weather conditions. In October, temperatures range from a mild minimum of 4°C (39°F) to a pleasant maximum of 22°C (71°F), with an average temperature of 12°C (54°F). The month experiences significant rainfall, with 152 mm (6.0 in) of precipitation over 17 days and high humidity at 83%. In contrast, December ushers in colder conditions, where temperatures plummet to a minimum of -10°C (15°F) and only reach a maximum of 11°C (52°F), with an average of -2°C (29°F). Although precipitation declines slightly to 147 mm (5.8 in), it is spread across 27 days, and humidity remains relatively lower at 80%. For detailed insights into December's chilly climate, you can check Otaru weather in December.
As autumn settles in, October in Otaru brings a distinct change in weather, showcasing a balance between warmth and the onset of cooler days. Compared to the milder summer months, the temperatures dip significantly, leading to a refreshing chill in the air, particularly in the evenings. Frequent rainfall enhances the overall humidity, giving October a lush, vibrant ambiance amidst the colorful fall foliage. This month stands out with its increased precipitation, making it more wet than its predecessors, thus inviting visitors to experience Otaru's picturesque landscapes under a moody sky. For a deeper understanding of what to expect throughout the year, explore the comprehensive details at Otaru Climate.