September Weather in Kushimoto, Japan

Last updated: August 21, 2025

In Kushimoto, Japan, September is characterized by a warm climate, with maximum temperatures reaching 31°C (89°F) and an average of 25°C (78°F). As the summer melds into autumn, the evenings see cooler temperatures, dipping to a minimum of 19°C (67°F). The month experiences considerable rainfall, accumulating around 297 mm (11.7 in) over 20 days, contributing to a high humidity level of 82%. This blend of warmth and moisture creates a lush environment, making September a vibrant yet wet month in this coastal region.

September Temperature in Kushimoto

In Kushimoto, Japan, September marks a transition into the mellow warmth of autumn, with temperatures showcasing a comfortable range. The month begins with a minimum of 19°C (67°F) and peaks at a maximum of 31°C (89°F), resulting in an average temperature of 25°C (78°F). This slight decline from the sweltering highs of summer signifies a gradual cooling, with nights becoming pleasantly mild. As the summer's intensity recedes, September offers an ideal climate for outdoor activities and enjoying the stunning coastal views, making it a delightful time to explore this charming seaside town.

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

The chart illustrates September temperature patterns in Kushimoto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kushimoto, 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).
JanFebMarAprMayJunJulAugSepOctNovDec484855616873798278706152
Data source: Temperature data for Kushimoto 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 Kushimoto

In September, Kushimoto experiences a significant uptick in precipitation, with 297 mm (11.7 in) of rainfall spread over 20 days. This marks a pivotal moment in the wet season, as the region transitions from the summer's peak rainfall in July and August, which had already set the stage with impressive totals of 361 mm and 270 mm, respectively. The increasing precipitation not only highlights the end of summer but also foreshadows October's even heavier rainfall forecast of 400 mm (15.7 in). As the number of rainy days in September sits comfortably at 20, it's clear that this coastal town braces for a month characterized by frequent showers, an integral part of its lush and vibrant ecosystem that thrives on the abundant moisture.

September Precipitation Trends in Kushimoto

The chart displays monthly precipitation patterns in Kushimoto, 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 Kushimoto, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec771011801562302803612702974009384
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kushimoto

In Kushimoto, Japan, the humidity in September reaches a comfortable 82%, reflecting a trend of slightly elevated levels that started in late spring and continues through the summer months. Notably, humidity peaks in July at 92%, creating a sultry atmosphere typical of the season. As summer wanes into August, humidity remains high at 86%, but by September, it cools slightly while still maintaining a lush, moist environment. This gradual decrease is consistent with the transition into autumn, as the humidity begins to dip into the more moderate levels seen in October and beyond. Throughout the year, the overall trend shows a clear rise from the cooler, drier months of winter and early spring, peaking in the height of summer before gradually easing into the fall.

September Average Humidity in Kushimoto

This chart illustrates the average monthly humidity levels in Kushimoto, 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 Kushimoto is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%69%69%75%82%87%92%86%82%79%76%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kushimoto

In September, Kushimoto experiences a UV Index of 10, categorized as very high, which translates to a burn time of just 15 minutes under direct sunlight. This marks a slight decline from the extreme levels seen in the summer months of July and August, where the UV Index peaked at 12. As autumn approaches, the UV levels remain significant, suggesting a careful approach to sun exposure is still necessary. Overall, the trend from January to September highlights a remarkable increase in UV intensity during the summer months, tapering off as the year progresses. For detailed insights on UV exposure, visit Kushimoto UV Index.

Maximum UV Index Levels in Kushimoto for September

The chart shows the monthly maximum UV Index (UVI) for Kushimoto 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 Kushimoto typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111112121210764
Data source: Kushimoto 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 Kushimoto

September in Kushimoto, Japan, welcomes a gentle transition from the summer's peak brightness to the softer glow of autumn. With 263 hours of sunshine, it's a month that balances lingering warmth with the approaching coolness of October. While August dazzles with the year’s highest sunshine record at 323 hours, September still showcases a generous amount of daylight, slightly dipping but maintaining a vibrant atmosphere. This trend reflects the region's rich tapestry of seasonal changes, where each month offers its unique charm as the days grow shorter yet still radiate warmth, inviting locals and visitors alike to bask in the golden sunlight before autumn descends fully.

Monthly Sunshine Duration in Kushimoto: September Highlighted

The September sunshine duration represents the total number of hours Kushimoto 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.
JanFebMarAprMayJunJulAugSepOctNovDec191h235h273h285h295h273h282h323h263h241h243h234h
Data source: Kushimoto September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kushimoto During September

September in Kushimoto, Japan, marks a transition as sunny days become less frequent, with only a 27% chance of sunshine. This decline in sunny weather follows the summer months, where July and August see slightly higher probabilities of 29% and 31%, respectively. The trend is evident as we move from the vibrant summer heat into the milder autumn, with October emerging as a more promising month, boasting a 58% chance of sunshine. This pattern highlights how September sits at a crossroads—beginning to shift away from summer brightness while still clinging to occasional sunny spells.

Percentage of Sunny Days in September in Kushimoto

The chart illustrates the percentage of sunny days in Kushimoto 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 Kushimoto experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%57%46%47%27%23%29%31%27%58%55%64%
Data source: Kushimoto September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kushimoto in September

As summer fades into autumn in Kushimoto, Japan, September offers a gentle transition with 12 hours of daylight. Following the peak of 14 hours in July and June, daylight hours gradually decrease, reflecting a natural rhythm in the changing seasons. After the vibrant brightness of summer, September stands out as a month of balance, where the light begins to wane but still provides ample time to enjoy outdoor activities. This gradual shift continues into the fall, with daylight decreasing to 11 hours in October and 10 hours in November, marking the onset of longer nights as winter approaches. The cycle of daylight hours not only highlights the beauty of each season but also invites residents and visitors alike to relish the lingering warmth of early autumn before the chill of winter settles in.

Average Daylight Hours in Kushimoto for September

The chart illustrates the variation in daylight duration in Kushimoto throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 11m10h 58m11h 58m13h13h 53m14h 19m14h 6m13h 20m12h 20m11h 19m10h 25m9h 57m
Data source: Kushimoto daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kushimoto

As September graces Kushimoto, Japan, the average wind speed settles at a pleasant 4.9 m/s (11 mph), reflecting a mild transition from the gusty summer months to the calmer days of autumn. This gentle breeze is consistent with the trends observed in the preceding months, where wind speeds hover around similar averages, particularly in July and August. Notably, June experiences the softest winds, dropping to 3.7 m/s (8 mph), while the year wraps up with more robust gusts in January and December, both at 5.6 m/s (12 mph). This cyclical pattern showcases how the winds of Kushimoto dance through the seasons, providing a refreshing touch as the landscape prepares for the cooler months ahead.

Average September Wind Speed in Kushimoto

The chart displays monthly wind speed patterns in Kushimoto, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.66.04.95.14.63.74.85.14.9 m/s3.94.75.6
Data source: Kushimoto September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kushimoto Compares to Other Months

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

September and January present strikingly different weather conditions. In September, temperatures are notably warmer, ranging from a minimum of 19°C (67°F) to a maximum of 31°C (89°F), with an average of 25°C (78°F). This month also experiences high humidity at 82% and frequent rainfall, accumulating 297 mm (11.7 in) over approximately 20 days. In contrast, January brings a chillier climate, with temperatures dipping to a minimum of 1°C (34°F) and peaking at 17°C (64°F), while the average temperature settles at 9°C (48°F). The precipitation is significantly lower, totaling only 77 mm (3.0 in) over just 6 days, and humidity is reduced to 72%. For more detailed insights on January weather, you can check Kushimoto weather in January.

September and February present a stark contrast in weather conditions. September typically boasts warm temperatures, ranging from a minimum of 19°C (67°F) to a maximum of 31°C (89°F), with an average of 25°C (78°F). This month experiences high humidity at 82% and substantial rainfall, totaling 297 mm (11.7 in) over about 20 days. In contrast, February is much cooler, with temperatures dipping to a minimum of 1°C (35°F) and peaking at 19°C (67°F), averaging just 9°C (49°F). The precipitation in February is considerably lower at 101 mm (4.0 in), occurring over only 8 days, and humidity is reduced to 69%. For more detailed information on February weather trends, you can visit Kushimoto weather in February.

September and March present a striking contrast in weather conditions. September boasts a warmer climate, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 31°C (89°F), coupled with high humidity levels at 82%. However, it also experiences significant precipitation, averaging 297 mm (11.7 in) over 20 days. In contrast, March is much cooler, with average temperatures between 4°C (39°F) and 21°C (69°F) and a lower humidity of 69%. Additionally, March sees less rainfall, totaling around 180 mm (7.1 in) over approximately 11 days. For more details on the March climate, you can visit Kushimoto weather in March.

In September, the weather tends to be much warmer and more humid compared to April, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 31°C (89°F), and an average of 25°C (78°F). In contrast, April experiences cooler temperatures, with a range of 6°C (43°F) to 23°C (73°F) and an average of 16°C (61°F). Additionally, September is marked by significantly higher precipitation, with 297 mm (11.7 in) falling over 20 days, while April sees only 156 mm (6.1 in) over 10 days, resulting in a more moderate humidity level of 75% in April compared to 82% in September. For more details, you can visit Kushimoto weather in April.

In comparing the weather of September and May, one can observe distinct differences in temperature and precipitation. September boasts warmer temperatures, with averages around 25°C (78°F) and maximums reaching 31°C (89°F), whereas May experiences cooler averages of 20°C (68°F) and maximums of 26°C (79°F). Precipitation is more pronounced in September, totaling 297 mm (11.7 in) across 20 days, compared to May's 229 mm (9.0 in) over 12 days. Interestingly, both months share the same humidity level of 82%, making the air feel equally moist despite the temperature variations. For more detailed information on May weather specifically, you can check out Kushimoto weather in May.

In comparing the weather of September and June, September presents a warmer climate with average temperatures peaking at 25°C (78°F) and a maximum of 31°C (89°F), whereas June has slightly cooler averages, with a maximum of 28°C (82°F). Humidity levels are notably high in both months, with September at 82% and June slightly higher at 87%. Precipitation is quite frequent, with September experiencing 297 mm (11.7 in) over 20 days, compared to June's 280 mm (11.0 in) across 16 days. For a more detailed look at June weather patterns, you can refer to Kushimoto weather in June.

September's weather is characterized by slightly cooler temperatures compared to July, with average highs of 31°C (89°F) compared to July's 33°C (92°F). While both months experience significant rainfall, September receives about 297 mm (11.7 in) over 20 days, which is less than July's 361 mm (14.2 in) over 21 days. Humidity levels also decrease in September, averaging 82%, compared to the higher humidity of 92% in July. For a detailed comparison, you can check Kushimoto weather in July.

In comparing the weather between September and August, September tends to be slightly cooler with average temperatures around 25°C (78°F) compared to August's warmer average of 28°C (82°F). Additionally, September experiences higher precipitation, totaling 297 mm (11.7 in) over 20 days, as opposed to August's 270 mm (10.6 in) over 17 days. Humidity is also marginally lower in September at 82% compared to August's 86%. Overall, while both months are warm and humid, September signals a gradual transition towards cooler weather. For more detailed insights, you can refer to Kushimoto weather in August.

In September, the weather is typically warm with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 31°C (89°F), accompanied by high humidity levels of 82%. This month also sees significant rainfall, averaging 297 mm (11.7 in) over 20 days. In contrast, October experiences cooler temperatures, with a minimum of 12°C (54°F) and a maximum of 28°C (83°F). While it remains humid at 79%, October sees an increase in precipitation to 400 mm (15.7 in) over 15 days. For more detailed insights, check out Kushimoto weather in October.

September and November exhibit significantly different weather patterns. In September, temperatures range from a minimum of 19°C (67°F) to a maximum of 31°C (89°F), with an average of 25°C (78°F). The month is characterized by high humidity at 82% and considerable rainfall, totaling 297 mm (11.7 in) over 20 days. In contrast, November sees a marked drop in temperatures, with lows of 8°C (46°F) and highs around 24°C (75°F), averaging 16°C (62°F). Rainfall is also reduced to 93 mm (3.7 in) over just 9 days, accompanied by a lower humidity level of 75%. For more detailed insights, you can check Kushimoto weather in November.

September and December present stark contrasts in weather conditions. In September, temperatures range from a warm minimum of 19°C (67°F) to a balmy maximum of 31°C (89°F), with an average of 25°C (78°F). However, this month is characterized by significant rainfall, averaging 297 mm (11.7 in) over 20 days, and high humidity levels at 82%. In contrast, December experiences much cooler temperatures, with a minimum of 3°C (38°F) and an average of 11°C (53°F), peaking at 21°C (71°F). Rainfall is considerably reduced to 84 mm (3.3 in) over just 8 days, with humidity dropping to 74%. For a more detailed look at December's climate, visit Kushimoto weather in December.

Compare Kushimoto's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kushimoto

In September, Kushimoto experiences a notable shift in weather as summer begins to fade, making way for more humid conditions. With an average temperature of 25°C (78°F), the month offers a warm yet comfortable climate, in contrast to the peak heat of the preceding months. However, this warmth is accompanied by significant rainfall, resulting in 20 days of precipitation, which is a stark increase compared to July and August. Humidity levels soar to 82%, creating a notably sultry atmosphere. While September may not boast the highest temperatures, the combination of warmth and moisture sets it apart from the preceding summer months, making it an essential time for those interested in Kushimoto's unique climate. For more detailed insights, check out Kushimoto Climate.