October Weather in Niigata, Japan

Last updated: August 21, 2025

In October, Niigata, Japan experiences a mild climate characterized by a maximum temperature reaching 28°C (82°F) and an average of 18°C (65°F), while evenings can cool down to a minimum of 12°C (53°F). The month is notable for its high humidity, averaging 87%, contributing to a lush environment. However, be prepared for frequent rainfall, with 16 days of precipitation delivering a total of approximately 170 mm (6.7 in). This combination of warmth and moisture creates a vibrant autumn atmosphere, perfect for enjoying the stunning fall foliage that Niigata is known for.

October Temperature in Niigata

As October arrives in Niigata, Japan, the city experiences a delightful transition into autumn, marked by a refreshing chill in the air. With nighttime temperatures dipping to a minimum of 12°C (53°F), the days remain pleasantly mild, boasting an average of 18°C (65°F) and peaking at a comfortable 28°C (82°F). This month showcases a notable decline from the sweltering highs of summer, inviting residents and visitors alike to enjoy the vibrant fall foliage without the extremes of heat. October's climate not only heralds a shift in scenery but also sets the stage for cozy gatherings and seasonal festivities, making it a perfect time to explore Niigata’s beauty as nature prepares for the upcoming winter months.

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

The chart illustrates October temperature patterns in Niigata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Niigata, 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).
JanFebMarAprMayJunJulAugSepOctNovDec404146526168778174655545
Data source: Temperature data for Niigata 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 Niigata

In October, Niigata experiences a significant rainfall of 170 mm (6.7 in), maintaining a robust precipitation trend that characterizes the onset of autumn. Unlike the intense downpours of the summer months, this month registers 16 rainy days, allowing for a steady accumulation of moisture rather than overwhelming storms. As temperatures drop, this consistent precipitation supports the vibrant fall foliage, painting the landscape in rich hues. Notably, October's precipitation levels are slightly lower than the preceding September, which saw 158 mm (6.2 in), yet they remain markedly substantial compared to the drier spring months. As winter approaches, the rhythmic pulse of fall rains enriches both the lush scenery and the agricultural landscape of Niigata.

October Precipitation Trends in Niigata

The chart displays monthly precipitation patterns in Niigata, 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 Niigata, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec178131112111108100271247158170161226
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Niigata

In October, Niigata experiences a humidity level of 87%, which signals a gradual shift as autumn takes hold. This month marks a slight decline from the peak summer humidity, with July and August reaching a muggy 92%. However, October's humidity remains noticeably high compared to the crisp air of later autumn months like November and December, where levels drop to 85% and 86% respectively. Overall, Niigata's humidity tends to hover around the high end of the scale throughout the year, with the most significant fluctuations occurring in the summer. This pattern highlights the region's unique climate, characterized by its warm and moist conditions, even as the seasons change.

October Average Humidity in Niigata

This chart illustrates the average monthly humidity levels in Niigata, 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 Niigata is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%79%81%88%92%92%89%87%85%86%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Niigata

As October rolls into Niigata, Japan, the UV Index experiences a notable dip, settling at 6, placing it in the high exposure category. This marks a significant decrease from the summer months, where extreme levels peaked at 11 in July and August, necessitating quick action to protect skin from harmful rays. Now, with a burn time of just 25 minutes, residents and visitors alike should remain vigilant, especially as they transition from the oppressive summer sun to milder autumn days. The overall trend indicates a gradual decline in UV intensity as winter approaches, yet October still demands respect for sun safety. For more detailed insights on UV exposure, check the Niigata UV Index.

Maximum UV Index Levels in Niigata for October

The chart shows the monthly maximum UV Index (UVI) for Niigata 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 Niigata typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347891011119643
Data source: Niigata 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 Niigata

In October, Niigata experiences a delightful transition as the amount of sunshine begins to wane, offering 227 hours of bright days. This month marks a notable shift from the sun-drenched warmth of August, which enjoys the peak with 311 hours, and the steady glow of May and June, both boasting over 300 hours. As the leaves change and temperatures cool, October serves as a gentle reminder of the approaching winter, yet it still offers more sunshine than the following months of November and December. This trend highlights a beautiful blend of crisp air and warm sun, inviting both locals and visitors to enjoy the vibrant fall foliage under Niigata's embracing October skies.

Monthly Sunshine Duration in Niigata: October Highlighted

The October sunshine duration represents the total number of hours Niigata 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.
JanFebMarAprMayJunJulAugSepOctNovDec140h190h246h278h308h302h297h311h260h227h207h173h
Data source: Niigata October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Niigata During October

In October, Niigata experiences a moderate 38% chance of sunny weather, positioning it as a favorable time for outdoor activities. This percentage marks a noticeable improvement compared to the summer months, where July and September boast higher probabilities of sunshine at 46%. Interestingly, October's potential for clear skies aligns closely with the transitional period of the year, nudging up toward the higher chances of November's 43%. As the region moves into late autumn, this blend of sun and seasonal change can create a picturesque backdrop for enjoying the vibrant fall foliage.

Percentage of Sunny Days in October in Niigata

The chart illustrates the percentage of sunny days in Niigata 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 Niigata experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%34%27%41%36%32%46%29%46%38%43%26%
Data source: Niigata October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Niigata in October

In Niigata, Japan, the pattern of daylight duration reveals a rhythmic dance of light throughout the year. Starting from the crispness of January with just 9 hours of daylight, the days gradually lengthen with the arrival of February and March, peaking during the vibrant months of April and May at a delightful 13 to 14 hours of sunlight. As summer wanes into August, daylight begins to recede, as evidenced by a slight decline to 13 hours, ultimately leading to the shorter days of fall. By October, the daylight diminishes to 11 hours, marking the transition into shorter, cozier months ahead. This cyclical change not only showcases the changing seasons but also influences the activities and mindset of the local community as they embrace the shifting landscape of natural light.

Average Daylight Hours in Niigata for October

The chart illustrates the variation in daylight duration in Niigata throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 51m10h 46m11h 57m13h 10m14h 12m14h 43m14h 28m13h 34m12h 24m11h 11m10h 7m9h 34m
Data source: Niigata daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Niigata

As October arrives in Niigata, Japan, the average wind speed settles at a refreshing 4.3 m/s (10 mph), aligning perfectly with the pleasant transition into autumn. This month marks a notable uptick from the summer's calm winds, reflecting a gradual increase in air movement that had dipped significantly during the hot months of June and July, where it hovered at only 2.7 m/s (6 mph). As the leaves begin to change and the air grows crisper, October's winds evoke a sense of invigorating change, contrasting with the more tumultuous gusts expected in the chill of winter, which escalate to 6.8 m/s (15 mph) by December. Overall, October acts as a gentle bridge, inviting nature's transformation while preparing locals for the more blustery conditions that lie ahead.

Average October Wind Speed in Niigata

The chart displays monthly wind speed patterns in Niigata, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.16.64.34.34.02.72.73.44.14.3 m/s5.36.8
Data source: Niigata October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Niigata Compares to Other Months

Weather in Niigata varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Niigata, 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 12°C (53°F) at night to a warm 28°C (82°F) during the day, with an average temperature of 18°C (65°F). The month sees substantial rainfall, totaling 170 mm (6.7 in) over approximately 16 days, while humidity remains high at 87%. In contrast, January brings much colder temperatures, with minimums plunging to -2°C (28°F) and maximums only reaching 13°C (55°F), resulting in an average of just 5°C (41°F). Precipitation is slightly higher in January at 178 mm (7.0 in), but it occurs over more days, totaling 23, and the humidity is slightly higher at 88%. For more detailed insights into January weather, you can check out Niigata weather in January.

October and February present stark contrasts in weather. In October, temperatures range from a minimum of 12°C (53°F) to a maximum of 28°C (82°F), offering a warm average of 18°C (65°F). This month experiences significant rainfall, with 170 mm (6.7 in) spread over 16 days and high humidity at 87%. Conversely, February brings much colder conditions, with temperatures dropping to a minimum of -1°C (31°F) and an average of only 5°C (41°F), while the highest temperature reaches 15°C (59°F). Although February sees less precipitation at 131 mm (5.1 in), it has more rainy days—24 in total—combined with slightly lower humidity at 86%. For a closer look at February weather specifics, check out Niigata weather in February.

In October, temperatures are notably warmer than in March, with averages around 18°C (65°F) compared to just 8°C (46°F) in March. October experiences a maximum temperature of 28°C (82°F), while March peaks at 17°C (64°F). Additionally, October sees more precipitation, totaling 170 mm (6.7 in) over 16 days, compared to March's 112 mm (4.4 in) during the same number of days. Humidity levels are also slightly higher in October at 87%, versus 81% in March. For a detailed look at the weather specifics, check out Niigata weather in March.

October and April showcase distinct weather patterns that significantly affect the environment. In October, temperatures range from a minimum of 12°C (53°F) to a maximum of 28°C (82°F), with an average of 18°C (65°F), making it relatively warm. However, it also experiences a considerable amount of precipitation at 170 mm (6.7 in) over approximately 16 days, coupled with high humidity levels at 87%. In contrast, April sees cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 22°C (72°F), resulting in a lower average of 11°C (52°F). Precipitation in April is lighter, totaling 111 mm (4.4 in) over 14 days, and humidity is more manageable at 78%. For more specifics on the conditions in April, you can check Niigata weather in April.

In October, temperatures range from a minimum of 12°C (53°F) to a maximum of 28°C (82°F), with an average of 18°C (65°F). The month is marked by higher precipitation, totaling 170 mm (6.7 in) over 16 days, and an increased humidity level of 87%. In contrast, May experiences milder temperatures, with a minimum of 8°C (47°F), an average of 16°C (62°F), and a maximum of 26°C (79°F). It also sees less precipitation at 108 mm (4.3 in) over 12 days, along with a lower humidity of 81%. The distinct differences in temperature and moisture levels create varied weather experiences in these months. For more detailed information, check out Niigata weather in May.

In comparing the weather of October and June, we see a few distinct differences. October features a slightly wider range in temperatures, with a minimum of 12°C (53°F) and a maximum of 28°C (82°F), while June's temperatures range from a minimum of 13°C (56°F) to the same 28°C (83°F) maximum. Both months experience similar maximum temperatures, but June is typically warmer overall, with an average temperature of 20°C (69°F) compared to October's 18°C (65°F). In terms of precipitation, October is much wetter, averaging 170 mm (6.7 in) over 16 days, whereas June sees only 100 mm (4.0 in) across 12 days. Humidity levels are also quite similar, with October at 87% and June slightly higher at 88%. For more detailed insights, you can visit Niigata weather in June.

In comparing the weather of October and July, October features milder temperatures, with a minimum of 12°C (53°F) and an average of 18°C (65°F), while July sees significantly warmer conditions, with a minimum of 20°C (68°F) and an average of 25°C (78°F). Precipitation is higher in July, totaling 271 mm (10.7 in) over 16 days, compared to October's 170 mm (6.7 in) also spread over 16 days. Both months experience high humidity levels, with July at 92% and October slightly lower at 87%. For further details on July's climate specifics, you can check Niigata weather in July.

When comparing the weather in October to August, it’s clear that October brings cooler temperatures, with a minimum of 12°C (53°F) and an average of 18°C (65°F), compared to August's warmer range of 20°C (68°F) to a maximum of 35°C (95°F). August also experiences significantly higher humidity at 92%, while October's humidity is slightly lower at 87%. Despite October having fewer precipitation days at 16 compared to August's 15, it showcases a lower total rainfall of 170 mm (6.7 in) versus August’s 247 mm (9.7 in). For a more detailed look at August weather statistics, you can visit Niigata weather in August.

When comparing the weather in October to that of September, we can observe notable differences in temperature and precipitation. October experiences cooler temperatures, with a minimum of 12°C (53°F) and an average of 18°C (65°F), while September boasts higher temperatures, ranging from a minimum of 16°C (60°F) and reaching up to an average of 23°C (74°F). Additionally, September tends to be warmer overall, hitting a maximum of 34°C (94°F) compared to October's peak of 28°C (82°F).

In terms of precipitation, both months are relatively similar, with October receiving 170 mm (6.7 in) over 16 days and September slightly less at 158 mm (6.2 in) over 15 days. Humidity levels are also high in both months, with October at 87% and September at a slightly higher 89%. For more detailed insights, visit Niigata weather in September.

The weather in October is characterized by warmer temperatures, with a minimum of 12°C (53°F) and an average of 18°C (65°F), reaching up to a maximum of 28°C (82°F). In contrast, November sees a noticeable drop in temperatures, with lows of 4°C (39°F) and an average of 13°C (55°F), peaking at 21°C (70°F). Although both months experience substantial rainfall—October with 170 mm (6.7 in) over 16 days and November with 161 mm (6.3 in) over 20 days—the humidity remains fairly consistent at 87% in October and 85% in November. For more detailed insights into November weather, you can check Niigata weather in November.

In October, the weather is generally mild with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 28°C (82°F), averaging around 18°C (65°F). This month experiences significant rainfall, with about 170 mm (6.7 in) falling over approximately 16 days, alongside high humidity levels of 87%. In contrast, December brings much cooler temperatures, with a minimum of 0°C (33°F) and a maximum of 18°C (65°F), averaging just 7°C (45°F). Precipitation increases to 226 mm (8.9 in) over 27 days, maintaining a slightly lower humidity of 86%. For more detailed information about the December weather, you can check Niigata weather in December.

Compare Niigata's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Niigata

As October sets in, Niigata experiences a notable shift in weather, transitioning from the warmth of summer to the crispness of fall. With average temperatures marking a comfortable 18°C (65°F) and a maximum of 28°C (82°F), the days remain pleasantly mild, yet the evenings invite a cozy embrace as cooler 12°C (53°F) nights arrive. This month is characterized by its higher humidity at 87%, making the air feel rich and full, while the 170 mm (6.7 in) of rainfall over 16 days introduces a refreshing touch to the landscape. October is a vibrant month in Niigata, perfect for witnessing the beauty of autumn foliage and the seasonal changes that set it apart from the balmy summers and chilling winters. For more detailed insights, visit Niigata Climate.