September Weather in Kitakata, Japan

Last updated: August 21, 2025

In September, Kitakata, Japan, experiences a dynamic climate characterized by a maximum temperature reaching 31°C (88°F) and an average of 19°C (66°F). The evenings cool down to a minimum of 8°C (46°F), offering a refreshing contrast to the daytime warmth. This month sees significant rainfall, with a total precipitation of 160 mm (6.3 in) spread across 16 days, contributing to an overall high humidity level of 89%. Visitors can expect a blend of warm days and rainy spells, making it a month of diverse weather experiences.

September Temperature in Kitakata

In Kitakata, Japan, September brings a delightful transition from the sweltering summer to the crispness of autumn. With temperatures ranging from a minimum of 8°C (46°F) to a maximum of 31°C (88°F), the month offers a mild average of 19°C (66°F), making it an ideal time for outdoor exploration. Unlike the sweltering heat of July and August, September’s weather is noticeably cooler yet still warm enough to enjoy the lush scenery and vibrant colors of the changing leaves. This gradual shift in temperature not only signals the arrival of autumn but also creates a pleasant atmosphere for locals and visitors alike to experience the beauty of Kitakata during this enchanting time of year.

September Weather in Kitakata: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kitakata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kitakata, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec282936465864727566554432
Data source: Temperature data for Kitakata 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.

September Precipitation in Kitakata

In September, Kitakata experiences a notable shift in precipitation, receiving an average of 160 mm (6.3 in) over 16 days. This marks a decrease from the intense summer months of July and August, which see remarkably high rainfall of 321 mm (12.6 in) and 241 mm (9.5 in), respectively. The gradual decline in precipitation as the region transitions into autumn reflects the changing seasons, with September acting as a bridge between the heavy summer rains and the cooler, drier months ahead. This trend not only emphasizes the seasonal variability in Kitakata's climate but also highlights a pattern where precipitation begins to taper off, paving the way for a crisp and refreshing fall atmosphere.

September Precipitation Trends in Kitakata

The chart displays monthly precipitation patterns in Kitakata, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Kitakata, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec186188171150139155321241160180138217
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kitakata

September in Kitakata, Japan, marks a slight dip in humidity as the summer heat begins to wane, with levels averaging 89%. This follows a notably humid July and August, both hitting a peak of 92%. The transition from summer to autumn is evident, as the humidity stabilizes close to the higher levels experienced earlier in the year, like June’s 88%. Interestingly, the overall trend throughout the year reveals a pattern of elevated humidity, particularly in the warmer months, with figures remaining consistently above 80%. As the year progresses towards October, the humidity gently declines again to 87%, hinting at the upcoming changes in climate that characterize the fall season.

September Average Humidity in Kitakata

This chart illustrates the average monthly humidity levels in Kitakata, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Kitakata 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in Kitakata

In September, Kitakata, Japan, experiences a UV Index of 9, indicative of a very high exposure category, with a burn time of just 15 minutes. As summer transitions into autumn, the UV levels remain notably elevated, following a streak of extreme levels in the preceding months. This shift from August’s consistent 11 to a slightly lower yet still significant 9 reminds residents and visitors alike to stay vigilant about sun protection. With the days gradually becoming shorter, it’s essential to maintain sun safety habits, as the need for sunscreen and protective clothing persists. To learn more about the UV Index trends throughout the year, check out Kitakata UV Index.

Maximum UV Index Levels in Kitakata for September

The chart shows the monthly maximum UV Index (UVI) for Kitakata in September, 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 September, the maximum UV index in Kitakata typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111119753
Data source: Kitakata September 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.

September Sunshine in Kitakata

As summer gracefully transitions into autumn, September in Kitakata, Japan, showcases a delightful blend of warmth and light. With 243 hours of sunshine, the month experiences a gentle dip compared to the previous peak of 286 hours in August. However, it still boasts significantly more sun than the winter months, such as January's mere 142 hours. The sunny days of September mark a continuation of the highlights of the summer season, while also paving the way for the cooler October when sunshine decreases further to 207 hours. This gradual reduction in daylight invites residents and visitors alike to savor the beautiful sunsets and the crispness of the approaching fall, making it a truly enchanting time in Kitakata.

Monthly Sunshine Duration in Kitakata: September Highlighted

The September sunshine duration represents the total number of hours Kitakata experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec142h194h247h271h294h279h267h286h243h207h209h171h
Data source: Kitakata September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kitakata During September

As September rolls in, Kitakata, Japan, experiences a notable increase in the likelihood of sunny weather, with a 30% chance of clear skies. This marks a shift from the unpredictability of summer, where sun chances dip to as low as 18% in August. Compared to the colder months that follow, like October and November — where the sunny disposition hovers around 29% and 31% respectively — September emerges as a sweet spot for those yearning to soak up some sun. This month not only offers a more favorable climate but also hints at a transition into autumn, where the vibrant landscapes of Kitakata become even more enchanting under the sun's warm embrace.

Percentage of Sunny Days in September in Kitakata

The chart illustrates the percentage of sunny days in Kitakata throughout the year, with September 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 Kitakata experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%25%25%39%23%22%24%18%30%29%31%19%
Data source: Kitakata September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kitakata in September

As summer fades and autumn approaches, Kitakata, Japan, experiences a gradual shift in daylight duration throughout September. With 12 hours of daylight, this month marks a gentle decline from the peak of 14 hours seen in June, July, and August. This transition reflects the region's changing seasons, as daylight gradually shortens in preparation for October's 11 hours of sunlight. The decrease from the vibrant days of summer feels natural, perfectly aligning with the cooling temperatures and the harvest season, allowing residents to embrace the cozy charm of early fall while still enjoying ample daylight.

Average Daylight Hours in Kitakata for September

The chart illustrates the variation in daylight duration in Kitakata throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 52m10h 46m11h 57m13h 10m14h 11m14h 42m14h 26m13h 33m12h 23m11h 11m10h 8m9h 35m
Data source: Kitakata daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kitakata

In September, the average wind speed in Kitakata, Japan, settles at a gentle 2.3 m/s (5 mph), welcoming the arrival of autumn with a refreshing breeze. As summer fades, it becomes evident that the winds have been gradually softening since early spring, peaking in February at 3.2 m/s (7 mph) before dipping to their lowest point in July, where they barely whisper at 1.6 m/s (4 mph). However, the winds begin to pick up slightly by September, hinting at the brisker conditions to come in the fall months. As October approaches, the winds remain steady at 2.1 m/s (5 mph), marking a transitional period where the gentle rustle of leaves becomes more pronounced, embodying the serene spirit of the season.

Average September Wind Speed in Kitakata

The chart displays monthly wind speed patterns in Kitakata, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.53.22.72.82.61.81.62.12.3 m/s2.12.32.7
Data source: Kitakata September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kitakata Compares to Other Months

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

September and January exhibit strikingly contrasting weather patterns. In September, temperatures range from a mild 8°C (46°F) at night to a warm 31°C (88°F) during the day, with an average of around 19°C (66°F). The month experiences significant rainfall, with 160 mm (6.3 in) of precipitation over 16 days, and humidity levels are high at 89%. In stark contrast, January brings much colder conditions, with temperatures plummeting to a minimum of -11°C (12°F) and only reaching a maximum of 6°C (43°F) on average. Precipitation increases slightly to 186 mm (7.3 in) spread over 22 days, and humidity remains similar at 88%. For a closer look at the specifics of January weather, you can visit Kitakata weather in January.

September and February showcase stark contrasts in weather. In September, temperatures range from a mild 8°C (46°F) to a warm 31°C (88°F), with an average of 19°C (66°F) and significant humidity at 89%. Despite being one of the wetter months, with 160 mm (6.3 in) of precipitation over 16 days, the warmth and humidity create a lively atmosphere. In contrast, February is characterized by much colder conditions, with temperatures plummeting to a minimum of -18°C (0°F) and only reaching a maximum of 11°C (52°F), averaging -2°C (29°F). This month sees even more precipitation at 188 mm (7.4 in) spread over 22 days, accompanied by a slightly lower humidity of 86%. For a deeper look into February's weather specifics, check out Kitakata weather in February.

Comparing the weather in September and March reveals significant variations in temperature and precipitation patterns. In September, the temperature ranges from a minimum of 8°C (46°F) to a maximum of 31°C (88°F), with an average of 19°C (66°F), while March experiences much colder temperatures, with a range from -11°C (13°F) to a maximum of 19°C (66°F) and an average of just 2°C (37°F). Although September has slightly lower precipitation at 160 mm (6.3 in) over 16 days, March sees a higher total of 171 mm (6.7 in) over 21 days, contributing to a more humid atmosphere, especially considering March's average humidity of 81% compared to September's 89%. For more insights on the specifics of weather conditions, you can check Kitakata weather in March.

When comparing the weather in September and April, it's evident that both months experience significant fluctuations in temperatures and humidity. September tends to be warmer, with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 31°C (88°F), while April's range is notably cooler, with temperatures spanning from a minimum of -6°C (22°F) to a maximum of 24°C (76°F). Both months receive similar amounts of precipitation, with September recording 160 mm (6.3 in) over 16 days compared to April's 150 mm (5.9 in) over the same number of days. Interestingly, September has higher humidity levels at 89%, compared to April’s 78%, making the former feel more humid and sticky. For more detailed information specific to April, you can visit Kitakata weather in April.

When comparing the weather in September to that of May, we notice some distinct differences. September typically boasts a wider temperature range, with minimums around 8°C (46°F) and maximums peaking at 31°C (88°F), while May features cooler temperatures, ranging from a minimum of 2°C (36°F) to a maximum of 30°C (87°F). Precipitation is slightly higher in September, with 160 mm (6.3 in) over 16 days, compared to May’s 139 mm (5.5 in) across 17 days. Additionally, September tends to be more humid at 89%, in contrast to May's 81%. For further insights into the conditions of May, you can check Kitakata weather in May.

In comparing the weather of September and June, we see some notable similarities and differences. September tends to have a slightly wider temperature range, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 31°C (88°F). In contrast, June has a minimum temperature of 7°C (44°F) and can reach up to 32°C (90°F). Precipitation is quite comparable in both months, with September receiving about 160 mm (6.3 in) over 16 days and June totaling 155 mm (6.1 in) over 17 days. Humidity levels are also similar, with September at 89% and June slightly lower at 88%. For more detailed insights on June's weather, check out Kitakata weather in June.

In comparing the weather between July and September, it's clear that July tends to be warmer, with average temperatures ranging from 14°C (58°F) at its minimum to a peak of 33°C (91°F), compared to September's lower average of 19°C (66°F). Additionally, July experiences higher overall precipitation at 321 mm (12.6 in) over 21 days, while September sees 160 mm (6.3 in) across 16 days. Both months exhibit high humidity levels, with July slightly higher at 92% compared to September's 89%. For more detailed information on July's weather, you can visit Kitakata weather in July.

In comparing the weather between August and September, we see a notable shift in temperature and precipitation patterns. August tends to be warmer, with average temperatures reaching 24°C (75°F) and maximums peaking at 33°C (92°F), while September offers a cooler average of 19°C (66°F) with maximums of 31°C (88°F). Precipitation is higher in August, totaling 241 mm (9.5 in) over 20 days, compared to September's 160 mm (6.3 in) across 16 days, indicating a trend towards drier conditions as summer transitions into autumn. Humidity levels remain relatively high in both months, with September averaging 89% compared to August's 92%. For more detailed insights about August weather, you can check Kitakata weather in August.

September and October present a noticeable shift in weather patterns. In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 31°C (88°F), with an average of 19°C (66°F). The month experiences significant rainfall, accumulating 160 mm (6.3 in) over 16 days and maintaining a high humidity level of 89%.

As October arrives, temperatures drop further, with a minimum of 3°C (38°F) and a maximum of 26°C (80°F), leading to an average temperature of 13°C (56°F). Rainfall increases slightly to 180 mm (7.1 in), still spread over 16 days, but humidity also decreases marginally to 87%. This transition highlights a clear cooling trend as autumn deepens. For more details on October weather, visit Kitakata weather in October.

September and November present quite contrasting weather conditions. In September, temperatures range from a comfortable minimum of 8°C (46°F) to a warm maximum of 31°C (88°F), with an average of 19°C (66°F). The month often experiences high humidity at 89% and considerable precipitation, totaling 160 mm (6.3 in) across about 16 days. In comparison, November sees much cooler temperatures, with a minimum plunging to -7°C (20°F) and a milder maximum of 21°C (69°F), averaging just 7°C (44°F). Precipitation is slightly lower at 138 mm (5.4 in) over 18 rainy days, while humidity remains relatively high at 85%. For more specific details about November weather, you can check out Kitakata weather in November.

September and December present a stark contrast in weather. In September, temperatures range from a mild 8°C (46°F) at night to a warm average of 19°C (66°F), peaking at a hot 31°C (88°F) during the day. The month sees considerable rainfall, with 160 mm (6.3 in) of precipitation spread over 16 days, and humidity levels are notably high at 89%. In contrast, December brings much colder temperatures, with a chilling minimum of -13°C (9°F) and an average of 0°C (33°F), reaching a maximum of 17°C (62°F). Precipitation also increases to 217 mm (8.5 in) over 25 days, and the humidity remains slightly lower at 86%. This shift signifies the transition from a warm, wet fall to a cold, damp winter. For more details on December weather, check out Kitakata weather in December.

Compare Kitakata's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kitakata

As September unfolds in Kitakata, the weather presents a unique transition compared to the sweltering summer months. With temperatures ranging between a mild 8°C to a warm 31°C, the days are still pleasant, but the nights can turn quite cool. This shift is accompanied by increased humidity levels—averaging a robust 89%—and higher precipitation, as the region experiences 16 days of rain, totaling 160 mm. Such conditions mark a significant departure from the drier days of summer, paving the way for the vibrant foliage of autumn. For those interested in a deeper dive into the seasonal shifts, be sure to explore Kitakata Climate.