October Weather in Hatsukaichi, Japan

Last updated: August 21, 2025

October in Hatsukaichi, Japan, offers a delightful blend of mild temperatures and vibrant autumn scenery. With daily maximums reaching 29°C (85°F) and an average of 19°C (66°F), the month is generally warm but gradually cools down to a minimum of 8°C (46°F). Rainfall is common, totaling 172 mm (6.8 in) over 10 days, contributing to the lush landscapes. This month also sees a humidity level of approximately 79%, enhancing the crisp, fresh atmosphere perfect for outdoor exploration and enjoying the breathtaking fall foliage.

October Temperature in Hatsukaichi

In Hatsukaichi, Japan, October marks a delightful transition into cooler autumn weather. With nighttime temperatures dipping to a minimum of 8°C (46°F) and daytime highs reaching around 29°C (85°F), this month offers a comfortable average temperature of 19°C (66°F). As the warmth of summer fades, residents and visitors alike can expect pleasantly mild days perfect for exploring the vibrant fall foliage. The gradual decrease in temperatures from the summer peak underlines a distinct shift towards the crisp air of late autumn, making October an ideal time to experience the town’s natural beauty and rich cultural heritage.

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

The chart illustrates October temperature patterns in Hatsukaichi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hatsukaichi, 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).
JanFebMarAprMayJunJulAugSepOctNovDec424350576672798275665545
Data source: Temperature data for Hatsukaichi 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 Hatsukaichi

In October, Hatsukaichi experiences a notable shift in its precipitation patterns, with an average of 172 mm (6.8 in) of rainfall spread over 10 days. This represents a decrease from the intense summer months, particularly July, which sees a staggering 386 mm (15.2 in) over 19 days. The transition into autumn brings a reduction in rainfall, yet October still maintains significant moisture levels compared to the dry spell that follows in November, where precipitation drops sharply to just 37 mm (1.5 in). This month serves as a bridge, reflecting the lingering effects of the wet season while gradually ushering in the drier winter months ahead.

October Precipitation Trends in Hatsukaichi

The chart displays monthly precipitation patterns in Hatsukaichi, 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 Hatsukaichi, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec49691251371361813862562371723762
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Hatsukaichi

In Hatsukaichi, Japan, October brings a welcome shift in humidity, settling at 79%, a subtle decline from the sweltering heights of summer. The month marks a transition as the oppressive humidity of July and August—hovering around a staggering 95% and 93%, respectively**—gives way to more comfortable conditions. Following the high of 88% in June, September's 84% offers a hint of relief, and October continues this trend with a moderate drop. As the year progresses, it’s clear that fall ushers in a refreshing change, making October a delightful time to experience the beauty of Hatsukaichi without the suffocating humidity of summer.

October Average Humidity in Hatsukaichi

This chart illustrates the average monthly humidity levels in Hatsukaichi, 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 Hatsukaichi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%72%69%75%84%88%95%93%84%79%76%75%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Hatsukaichi

In October, Hatsukaichi experiences a UV Index of 7, categorized as high, which translates to about 25 minutes of sun exposure before risk of sunburn occurs. This month marks a subtle shift from the intense summer months, where the UV Index consistently soared to extreme levels of 11 or 12. As the weather cools down, the risk decreases, yet it's still essential to be mindful of sun protection. The trend indicates that while October provides some relief from the scorching UV rays of previous months, vigilance remains key. For a comprehensive understanding of UV levels throughout the year, check out the detailed insights at Hatsukaichi UV Index.

Maximum UV Index Levels in Hatsukaichi for October

The chart shows the monthly maximum UV Index (UVI) for Hatsukaichi 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 Hatsukaichi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458111111121210764
Data source: Hatsukaichi 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 Hatsukaichi

As October settles in Hatsukaichi, the vibrant hues of autumn accompany a noticeable shift in sunlight hours, with the month receiving 254 hours of sunshine. While this marks a decline from the sun-soaked peaks of summer—particularly August's 308 hours—October still enjoys a generous share, reflecting a gradual transition towards the cooler months. This decrease, however, is not as steep as the drop seen in November and December, suggesting that the lingering warmth of fall continues to brighten the city before winter’s embrace. As the days grow shorter, the beauty of autumn foliage glistens under the soft sunlight, inviting residents and visitors alike to appreciate the charm of this transitional season.

Monthly Sunshine Duration in Hatsukaichi: October Highlighted

The October sunshine duration represents the total number of hours Hatsukaichi 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.
JanFebMarAprMayJunJulAugSepOctNovDec184h227h266h282h303h291h281h308h260h254h237h220h
Data source: Hatsukaichi October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hatsukaichi During October

In Hatsukaichi, Japan, October brings a refreshing shift in weather, with a 59% likelihood of sunny days, making it one of the sunniest months of the year. This marks a notable increase from the summer months, where the chances plummet to around 23-25%. As autumn settles in, it seems the sun shines more brightly, allowing residents and visitors to enjoy the stunning fall foliage under clear skies. This trend of sunny October weather not only makes for pleasant outings but also offers a perfect backdrop for local festivals and outdoor activities, enhancing the overall experience of this vibrant season.

Percentage of Sunny Days in October in Hatsukaichi

The chart illustrates the percentage of sunny days in Hatsukaichi 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 Hatsukaichi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec43%50%40%47%31%25%23%25%31%59%52%55%
Data source: Hatsukaichi October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hatsukaichi in October

In Hatsukaichi, Japan, October marks a transition as daylight begins to recede with an average of 11 hours. Following the sunniest months of June and July, which bask in 14 hours of daylight, the length of days starts to taper off. This gradual decrease continues through September's 12 hours, providing a gentle lead into the autumn months. As October unfolds, residents experience a notable shift, with daylight dwindling towards the 10 hours typical of November. This rhythm of light reflects the changing seasons, inviting the community to embrace the cozy allure of autumn while preparing for the shorter days ahead.

Average Daylight Hours in Hatsukaichi for October

The chart illustrates the variation in daylight duration in Hatsukaichi throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 8m10h 56m11h 58m13h 2m13h 55m14h 22m14h 9m13h 22m12h 21m11h 18m10h 22m9h 54m
Data source: Hatsukaichi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Hatsukaichi

As October settles over Hatsukaichi, Japan, the winds begin to calm, with an average speed of 2.3 m/s (5 mph), creating a gentle backdrop to the vibrant autumn scenery. Following a trend of decreasing breezes throughout the summer months, October mirrors the slightly lower speeds of September. This subtle shift towards a more tranquil atmosphere opens up the chance to fully appreciate the stunning fall foliage without the distraction of gusty winds. As the year progresses towards winter, the winds gradually pick up again in November, yet October stands out as a serene transition, inviting residents and visitors alike to enjoy the crisp air and beautiful landscapes.

Average October Wind Speed in Hatsukaichi

The chart displays monthly wind speed patterns in Hatsukaichi, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.32.82.82.81.82.02.62.32.3 m/s2.83.3
Data source: Hatsukaichi October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Hatsukaichi Compares to Other Months

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

When comparing the weather in October and January, a stark contrast emerges. October experiences a mild climate with average temperatures reaching up to 19°C (66°F), and highs soaring to 29°C (85°F), accompanied by significant precipitation of 172 mm (6.8 in) over about 10 days, resulting in a humid atmosphere with 79% humidity. In contrast, January presents a much colder landscape, with average temperatures plummeting to just 5°C (42°F) and maximums of only 15°C (59°F). The precipitation is notably less, at 49 mm (1.9 in) over 6 days, and the humidity remains slightly lower at 76%. For a more detailed look at the weather in January, you can visit Hatsukaichi weather in January.

October and February present stark contrasts in weather conditions. In October, temperatures range from a mild minimum of 8°C (46°F) to a warm maximum of 29°C (85°F), with an average of 19°C (66°F). The month is marked by significant rainfall, totaling 172 mm (6.8 in) over approximately 10 days, coupled with a humidity level of 79%. In contrast, February experiences much colder weather, with temperatures dipping as low as -4°C (26°F) and averaging only 6°C (43°F). The maximum temperature reaches 20°C (68°F), while precipitation is lighter, totaling 69 mm (2.7 in) across about 7 days, with a lower humidity of 72%. For more details on February weather, you can check Hatsukaichi weather in February.

In October, the weather is significantly warmer, with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 29°C (85°F). The month experiences higher humidity at 79% and considerable precipitation, averaging 172 mm (6.8 in) over 10 days. In contrast, March offers cooler conditions, with temperatures varying from a chilly minimum of 1°C (33°F) to a maximum of 22°C (71°F). This month is drier, with total rainfall measuring 125 mm (4.9 in), while the humidity is lower at 69%. For a detailed look at March weather, you can visit Hatsukaichi weather in March.

In comparing the weather between October and April, one can notice distinct differences in temperature and precipitation. October boasts a broader temperature range with lows averaging around 8°C (46°F) and highs reaching up to 29°C (85°F), while April's temperatures are milder, ranging from a minimum of 2°C (36°F) to a maximum of 24°C (76°F). Although both months experience frequent rainfall, October sees a higher average precipitation of 172 mm (6.8 in) over 10 days compared to April's 137 mm (5.4 in) across 9 days. Additionally, the humidity remains relatively high in both months, with October slightly higher at 79%, compared to April's 75%. For more specific details about April weather, you can check Hatsukaichi weather in April.

In comparing the weather of October and May, both months exhibit similar average temperatures, with October ranging from a minimum of 8°C (46°F) to a maximum of 29°C (85°F) and May slightly cooler, with minimums of 7°C (45°F) and maximums reaching 28°C (83°F). However, October experiences more precipitation, totaling 172 mm (6.8 in) over about 10 days, compared to May's 136 mm (5.4 in) over 9 days. Humidity levels are also slightly lower in October at 79%, while May has a higher humidity level of 84%. For a closer look at May weather specifics, you can check out Hatsukaichi weather in May.

October and June present notable differences in weather patterns. In October, temperatures range from a minimum of 8°C (46°F) to a maximum of 29°C (85°F), with an average of 19°C (66°F). The month experiences a total precipitation of 172 mm (6.8 in) over about 10 days, accompanied by relatively lower humidity at 79%. In contrast, June sees milder conditions with a minimum temperature of 14°C (57°F) and an average of 22°C (72°F), while the maximum also reaches 29°C (85°F). Precipitation in June is slightly higher at 181 mm (7.1 in) spread across 14 days, and humidity is higher at 88%. For more detailed insights, check Hatsukaichi weather in June.

When comparing the weather in October to that of July, notable differences emerge. October tends to be milder, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 29°C (85°F), and an average of 19°C (66°F). In contrast, July is significantly warmer, featuring temperatures that vary from a minimum of 18°C (65°F) to a scorching maximum of 35°C (95°F), with an average temperature of 26°C (79°F). Additionally, July experiences higher humidity at 95% compared to October's 79%, and it also receives more rainfall—386 mm (15.2 in) over 19 days in July versus 172 mm (6.8 in) across 10 days in October. For a detailed look at July weather specifically, visit Hatsukaichi weather in July.

In comparing the weather conditions of October and August, it's notable that October generally offers cooler temperatures, with a minimum of 8°C (46°F) and an average of 19°C (66°F), contrasting sharply with the warmer August, which sees temperatures not dropping below 20°C (67°F) and averaging 28°C (82°F). August is characterized by its high temperatures, reaching a maximum of 35°C (96°F), while October peaks at a milder 29°C (85°F). Precipitation also varies, with October seeing 172 mm (6.8 in) over 10 days, compared to the wetter August, which records 256 mm (10.1 in) over 14 days. Furthermore, humidity levels are higher in August at 93%, while October’s humidity stands at 79%. For more details on August weather, check Hatsukaichi weather in August.

In comparing the weather of October and September, October experiences a cooler range of temperatures, with minimums as low as 8°C (46°F) and maximums reaching only 29°C (85°F), in contrast to September’s milder climate, which has minimums of 15°C (60°F) and maximums peaking at 33°C (92°F). Additionally, October sees a decrease in precipitation, recording 172 mm (6.8 in) over 10 days, compared to September’s 237 mm (9.3 in) spread over 14 days. Humidity remains notably high in both months, with October at 79% and September slightly higher at 84%. For more details about September weather patterns, you can visit Hatsukaichi weather in September.

October weather tends to be warmer and more variable than November, with temperatures ranging from a mild 8°C (46°F) at night to a high of 29°C (85°F) during the day. This month also sees a significant amount of rainfall, averaging 172 mm (6.8 in) over about 10 days, coupled with a fairly high humidity of 79%. In contrast, November experiences cooler temperatures, with minimums dropping to 2°C (36°F) and daytime highs averaging around 23°C (74°F). The precipitation decreases significantly to 37 mm (1.5 in) across only 5 days, and humidity levels remain slightly lower at 76%. For more details on November weather in the area, check out Hatsukaichi weather in November.

In October, the weather is notably warmer, with temperatures ranging from a pleasant 8°C (46°F) to a maximum of 29°C (85°F) and an average of 19°C (66°F). This month also experiences significant rainfall, with approximately 172 mm (6.8 in) of precipitation occurring over 10 days, coupled with a high humidity level of 79%. In contrast, December brings a much cooler climate, with temperatures dipping to a minimum of -1°C (31°F) and averaging around 7°C (46°F), while still peaking at 20°C (69°F). Precipitation in December drops to 61 mm (2.4 in) spread over just 6 days, and humidity is slightly lower at 75%. For a more detailed look at the colder month, check out Hatsukaichi weather in December.

Compare Hatsukaichi's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Hatsukaichi

As October arrives in Hatsukaichi, the weather begins to shift, offering a delightful transition from the warmth of summer to the cooler embrace of autumn. With an average temperature around 19°C (66°F), October presents a mild climate that invites outdoor exploration, but be ready for occasional rain, as the month experiences an increased precipitation rate compared to the drier summer months. The humidity lingers at a comfortable 79%, adding to the overall crispness in the air. This blend of moderate temperatures and refreshing breezes makes October an ideal time to enjoy the stunning fall foliage and vibrant landscapes. For those interested in understanding the broader patterns and nuances of the region's weather, visit Hatsukaichi Climate.