Last updated: August 21, 2025
In Oshima, Japan, October brings a delightful transition into autumn, with temperatures ranging from a maximum of 27°C (80°F) to a minimum of 15°C (59°F), averaging around 21°C (70°F). This month is characterized by its relatively high humidity of 83%, creating a gentle embrace as the leaves begin to change. Although precipitation is notable, with 339 mm (13.4 in) of rain spread over 18 days, the vibrant colors of the landscape and the refreshing atmosphere make this period a wonderful time to experience the island's natural beauty.
As October unfolds in Oshima, Japan, the island experiences a gentle transition into autumn, marked by mild temperatures that create an inviting atmosphere for exploration. With minimums resting at a comfortable 15°C (59°F) and averages reaching 21°C (70°F), the weather is pleasantly warm as summer's peak fades. The maximums can soar to around 27°C (80°F), providing ideal conditions for outdoor activities amidst the stunning fall foliage. This month serves as a gentle reminder of the seasonal shift, paving the way for cooler November days, while still offering plenty of opportunities to savor Oshima's natural beauty in a cozy yet vibrant climate.
In October, Oshima, Japan, experiences a significant upsurge in precipitation, with an impressive total of 339 mm (13.4 in) of rain falling over 18 days. This marks the highest monthly rainfall of the year, reflecting the onset of autumn weather patterns that often bring heavier downpours. The month serves as a stark contrast to the relatively dry summer months, such as August, which saw only 155 mm (6.1 in) of rain. This dramatic increase in rainfall not only contributes to the lush landscapes of the island but also aligns with the trend of rising precipitation observed throughout September. The consistent rainfall throughout autumn is vital for replenishing water resources and sustaining Oshima’s vibrant ecosystems.
In October, Oshima experiences a humidity level of 83%, marking a slight decrease from the peak months of summer, where it reached a sweltering 93% in July and 90% in August. This transitional month reflects a gradual shift from the intense humidity typical of the warmer season, capturing the essence of autumn. As the year progresses from the wet summer months, October's humidity aligns closely with spring levels, reminiscent of April's 74%. Interestingly, while the humidity remains noticeably high compared to the drier winter months—like January and February—it sets the stage for the calming crispness of late fall, where the air gradually dries out towards winter. Overall, the humidity trends in Oshima emphasize a dynamic climate, oscillating between the lush wetness of summer and the crispness of approaching winter.
As October rolls in Oshima, Japan, the UV Index shows a notable decline, settling at 7, which places it in the high exposure category. This is a shift from the extreme levels seen during the summer months, where the UV Index peaked at 12 in July. Consequently, residents and visitors can expect a more manageable burn time of 25 minutes, compared to the mere 10 minutes required during the height of summer. The trend this year indicates a gradual tapering of UV intensity as autumn approaches, making it essential to continue practicing sun safety. For more detailed information, visit Oshima UV Index.
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In Oshima, Japan, October brings a delightful transition as the summer's abundance of sunshine begins to wane. With 216 hours of sun, this month captures the essence of autumn, offering a balance between the lingering warmth of the previous months and the cool breezes to come. After reaching a peak in August with 313 hours of sunlight, October's total reflects a gradual decline, characteristic of the seasonal change. Following the vibrant hues of September's 254 hours, October invites residents and visitors alike to enjoy the crisp air and scenic landscapes, making it a perfect time for outdoor activities amidst the stunning fall foliage. As daylight hours shift, Oshima showcases its natural beauty, reminding us of the fleeting yet enchanting charm of autumn.
In Oshima, Japan, the likelihood of sunny weather in October presents a fascinating shift compared to the preceding months. With a 46% chance of sunshine, October emerges as a transition point from the dampness of late summer and the early autumn rains. While it lags behind the sunniest months of November and December, which boast chances of 58% and 68% respectively, October does offer a notable improvement over the cloudy spells often experienced from June to September. As the year progresses, Oshima residents and visitors can anticipate clearer skies, making October an appealing time for outdoor activities and exploration in this beautiful coastal region.
In Oshima, Japan, the daylight duration reflects a rhythmic dance throughout the year, with October settling into a comfortable 11 hours of sunlight. As the days grow shorter following the vibrant summer months, where daylight stretches to its peak of 14 hours in June and July, October marks a transition towards winter. The month starts with a gentle tapering off from the summer's abundance, echoing nature's shift as trees lose their leaves and evenings start to cool. This gradual decline continues into November, bringing just 10 hours of light, before plunging further into the darkness of winter, which sees December dropping to a mere 9 hours of daylight. Overall, the daylight pattern in Oshima encapsulates the beauty of the changing seasons, providing a serene yet stark reminder of nature's cyclical rhythm.
As October rolls in, Oshima experiences a gentle shift in its winds, with an average speed of 7.1 m/s (16 mph). This marks a slight increase from the breezy September, which saw winds at 7.4 m/s (17 mph), reflecting the seasonal transition. Throughout the year, the strongest winds are typically felt in the colder months, peaking in January and February at 9.3 m/s (21 mph) and 9.4 m/s (21 mph), while the late spring and summer months bring more subdued breezes, dropping as low as 5.0 m/s (11 mph). October's winds carry a refreshing chill, hinting at the approaching winter, and perfectly encapsulate the distinct, rhythmic changes of Oshima's climate as it gracefully straddles the thresholds of seasons.
Weather in Oshima varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Oshima, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of October and January, stark contrasts are evident. October enjoys milder temperatures, ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F), with an average of 21°C (70°F). However, it also experiences significant rainfall, with 339 mm (13.4 in) of precipitation over 18 days, leading to a high humidity level of 83%. In contrast, January is much cooler, with temperatures dipping to a minimum of 2°C (36°F) and peaking at 18°C (65°F), averaging around 10°C (50°F). The month sees much less precipitation, totaling 91 mm (3.6 in) over only 9 days, and a lower humidity of 76%. For more detailed insights, check Oshima weather in January.
October weather features a warm climate with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F) and an average of 21°C (70°F). In this month, the region experiences significant rainfall, with 339 mm (13.4 in) of precipitation spread over 18 days, coupled with high humidity at 83%. In contrast, February presents a cooler atmosphere with temperatures dropping to a minimum of 4°C (39°F) and peaking at 19°C (66°F), averaging just 10°C (50°F). Precipitation is notably lower in February, totaling 89 mm (3.5 in) across 11 days, and humidity stands at 74%. For more detailed information about February conditions, you can refer to Oshima weather in February.
In comparing the weather between October and March, October generally experiences milder temperatures, with a minimum of 15°C (59°F) and an average of 21°C (70°F), peaking at 27°C (80°F). In contrast, March is distinctly cooler, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 19°C (66°F) and an average of 13°C (55°F). Additionally, October sees significantly more rainfall, with 339 mm (13.4 in) over 18 days, compared to March's 201 mm (7.9 in) across 14 days. The humidity is also higher in October at 83%, while March enjoys a lower humidity level of 70%. For a more detailed look at the climate during this transitional month, you can check Oshima weather in March.
In comparing the weather between October and April, October generally presents warmer conditions with average temperatures ranging from 21°C (70°F) to a high of 27°C (80°F), while April is cooler, with average temperatures between 15°C (59°F) and a maximum of 21°C (71°F). Additionally, October experiences significantly more precipitation, averaging 339 mm (13.4 in) over about 18 days, compared to April's 157 mm (6.2 in) over 12 days. Humidity levels are also higher in October at 83%, in contrast to April's 74%, giving October a more muggy feel as autumn sets in. For a detailed look at Oshima's April weather, visit Oshima weather in April.
In October, the weather tends to be warmer compared to May, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F) and an average of 21°C (70°F). In contrast, May experiences slightly cooler temperatures, with a minimum of 13°C (56°F) and a maximum of 23°C (73°F), averaging at 19°C (66°F). Additionally, October sees considerably more precipitation, totaling 339 mm (13.4 in) over 18 days, while May has 198 mm (7.8 in) spread over just 11 days. Despite October being wetter, both months maintain a similar humidity level, with October at 83% and May at 81%. For more detailed information, check out Oshima weather in May.
When comparing the weather in October and June, October tends to be slightly cooler with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F), while June showcases warmer conditions with temperatures between 17°C (63°F) and 25°C (78°F). October experiences more precipitation, with a total of 339 mm (13.4 in) falling over about 18 days, compared to June’s 277 mm (10.9 in) over 14 days. The humidity in both months is high, with October at 83% and June slightly higher at 88%. For more specific details on June's weather in Oshima, you can visit Oshima weather in June.
October weather tends to be milder compared to July, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F), cooling down significantly from the warmer July averages of 20°C (69°F) to 29°C (85°F). Precipitation levels are slightly higher in October, with 339 mm (13.4 in) expected over 18 days, compared to July’s 301 mm (11.9 in) over 15 days. Humidity levels are also lower in October at 83% versus July’s 93%, making the former more comfortable despite the increased rain. For further information on July conditions, you can visit Oshima weather in July.
When comparing the weather in October to that of August, notable differences emerge. October experiences cooler temperatures, with a minimum of 15°C (59°F) and an average of 21°C (70°F), while August maintains warmer temperatures, ranging from a minimum of 22°C (72°F) and an average of 27°C (80°F). Additionally, October sees significantly more rainfall, with 339 mm (13.4 in) over 18 days compared to August's 155 mm (6.1 in) across 13 days. Humidity levels are also slightly lower in October at 83%, compared to 90% in August. For more information on August weather specifics, you can check this link: Oshima weather in August.
In October, the weather experiences a shift compared to September, with lower minimum temperatures, averaging 21°C (70°F) against September's warmer 25°C (76°F). While October sees a decrease in maximum temperatures at 27°C (80°F) compared to September's peak of 29°C (84°F), it also brings significantly higher precipitation levels, with October recording 339 mm (13.4 in) over 18 days, in contrast to September's 249 mm (9.8 in) across 19 days. Humidity in October sits at 83%, slightly lower than September’s 86%. These changes highlight the transition from the warmer late summer days to the cooler and wetter autumn climate. For more detailed insights, check Oshima weather in September.
In October, the weather is warmer with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F), while November sees cooler temperatures, with averages between 8°C (47°F) and 23°C (73°F). October experiences significantly higher precipitation at 339 mm (13.4 in) over 18 days compared to November's 152 mm (6.0 in) over 15 days. Despite the decrease in rainfall, November maintains a relatively high humidity level of 80%, slightly lower than October's 83%. For more details about the weather in November, you can check Oshima weather in November.
In comparison to October, December experiences a significant drop in temperatures, with average highs of just 12°C (55°F) compared to October's warmer average of 21°C (70°F). While October sees a higher maximum temperature of 27°C (80°F), December's temperatures can fall as low as 5°C (41°F), making it noticeably chillier. Additionally, October is much wetter, with 339 mm (13.4 in) of precipitation over 18 days, while December has only 95 mm (3.7 in) over 12 days, indicating a drier month. Humidity also decreases slightly from October's 83% to December's 78%, contributing to a more comfortable feel during the winter. For more details, you can check Oshima weather in December.
As October unfolds in Oshima, the weather brings a delightful shift from the warmth of summer, characterized by comfortable temperatures and increased rainfall. The average temperature hovers around a pleasant 21°C (70°F), making it an ideal time for outdoor activities. However, residents and visitors should be prepared for more frequent rain, with precipitation occurring on nearly two-thirds of the days. The humidity also remains high at 83%, creating a lush environment. This combination of mild temperatures and elevated humidity sets October apart from the drier summer months, fostering a vibrant atmosphere perfect for exploring the island's natural beauty. For those interested in a more detailed look at Oshima's weather patterns, visit Oshima Climate.