September Weather in Arita, Japan

Last updated: August 21, 2025

In September, Arita, Japan experiences a dynamic climate, characterized by a maximum temperature reaching 34°C (94°F), while the average temperature settles around 24°C (76°F). A refreshing drop to a minimum of 16°C (61°F) offers cool relief, especially as the month progresses. However, this season also brings considerable precipitation with a total of 218 mm (8.6 in) over approximately 15 days, contributing to the region's lush landscapes. Coupled with a rich humidity level of 84%, September in Arita is a time where warmth meets moisture, creating a vibrant and refreshing atmosphere perfect for experiencing the beauty of this historic area.

September Temperature in Arita

In September, Arita, Japan, experiences a delightful transition as summer gradually yields to autumn. With minimum temperatures hovering around 16°C (61°F) and an average soaring to 24°C (76°F), the weather remains pleasantly warm, perfect for enjoying the region’s captivating scenery. The maximum temperature can reach up to 34°C (94°F), reminiscent of the preceding summer heat, yet as the month progresses, there's a gradual decline in warmth, signaling the upcoming cooler months. This trend of shrinking extremes prepares the town for a gentle shift into autumn, as the vibrant hues of the season begin to unfold.

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

The chart illustrates September temperature patterns in Arita, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arita, 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).
JanFebMarAprMayJunJulAugSepOctNovDec444552596873808376675747
Data source: Temperature data for Arita 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 Arita

In September, Arita, Japan experiences a substantial precipitation of 218 mm (8.6 in) spread across 15 days, marking it as a significant month in the region's climatic calendar. This level of rainfall reflects a noticeable transition from the wetter months of July and August, where the totals peak at 385 mm and 297 mm respectively. The arrival of September often brings a shift, with precipitation decreasing but remaining robust, suggesting a blend of lingering summer storms and the early signs of autumn weather patterns. As the rainy season tapers, the balance of moisture continues to sustain the lush landscapes, emphasizing Arita's unique climatic tapestry.

September Precipitation Trends in Arita

The chart displays monthly precipitation patterns in Arita, 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 Arita, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec56811361191772093852972181165576
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Arita

As September arrives in Arita, Japan, the humidity begins to decline from the peak summer levels. With an average humidity of 84%, September marks a significant drop from the oppressive 97% of July and the still high 94% of August. This noticeable decrease signals the transition into fall, making the weather more comfortable for outdoor activities. However, it remains relatively humid compared to the beginning of the year, where humidity levels hovered around 73% in January. As autumn approaches, one can anticipate a gradual further decline in humidity, offering a refreshing reprieve from the summer's sweltering embrace.

September Average Humidity in Arita

This chart illustrates the average monthly humidity levels in Arita, 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 Arita is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%69%71%79%87%92%97%94%84%79%75%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Arita

In September, Arita experiences a UV Index of 11, categorizing it as extreme and marking a continuation of the intensity felt during the summer months. With a burn time of just 10 minutes, sun safety becomes paramount as the UV levels remain significantly high. This trend reflects the region's transition from the height of summer, characterized by UV indices peaking at 12 in July and August, to a slight decrease, yet still demanding caution. As autumn approaches, UV exposure remains a critical concern, underscoring the importance of sun protection strategies throughout the month. For more details and to track the UV forecast, visit Arita UV Index.

Maximum UV Index Levels in Arita for September

The chart shows the monthly maximum UV Index (UVI) for Arita 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 Arita typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121211764
Data source: Arita 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 Arita

As summer gracefully transitions into autumn, September in Arita, Japan, enjoys a remarkable continuation of sunshine, boasting 254 hours of glorious daylight. This month reflects a dip from the peak of August's 297 hours, yet maintains significantly higher levels than the early months of the year. Over the course of the year, there’s a clear trend of increasing sunshine from January through August, with a gentle decline starting in September that leads into the cooler months. Despite the slight reduction, September's hours still surpass those of October, November, and December, heralding the beautiful palette of fall while basking in the remaining warmth of summer. The lingering light this month encourages both locals and visitors to embrace outdoor festivities, making it a perfect time to experience Arita's rich culture and stunning landscapes.

Monthly Sunshine Duration in Arita: September Highlighted

The September sunshine duration represents the total number of hours Arita 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.
JanFebMarAprMayJunJulAugSepOctNovDec166h226h260h279h281h262h268h297h254h253h231h199h
Data source: Arita September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Arita During September

In Arita, Japan, the likelihood of sunny weather in September stands at 32%, a modest figure that reflects a slight uptick compared to the summer months. While June, July, and August experience the lowest chances of sunshine, September begins to emerge from the shadows of summer's heavy cloud cover. This month represents a transitional phase as the weather shifts toward October, which boasts a significantly higher 62% chance of sun. Interestingly, after the peak heat of summer, September offers a glimmer of hope for those seeking pleasant, sunny days, making it an appealing time for outdoor activities in the region. As the year progresses, the sunny prospects certainly brighten up, inviting visitors to bask in Arita's charm during its moderate early autumn days.

Percentage of Sunny Days in September in Arita

The chart illustrates the percentage of sunny days in Arita 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 Arita experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec35%45%35%40%32%24%20%27%32%62%51%42%
Data source: Arita September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Arita in September

In September, Arita, Japan experiences 12 hours of daylight, a slight decrease from the full splendor of summer, where daylight peaked at 14 hours in June and July. As the seasons transition, the days gradually shorten, hinting at the arrival of autumn. The month reflects a balance, showcasing 13 hours of daylight from May to August, then tapering just a bit as October approaches. This trend of diminishing daylight serves as a gentle reminder of nature's rhythm, where each month brings a unique blend of sunlight, inviting residents to savor the warming hues of the changing season before the deeper chill of winter sets in.

Average Daylight Hours in Arita for September

The chart illustrates the variation in daylight duration in Arita throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 13m10h 59m11h 58m13h13h 51m14h 17m14h 4m13h 19m12h 21m11h 19m10h 26m9h 59m
Data source: Arita daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Arita

As September settles in Arita, Japan, the gentle caress of the wind maintains a moderate speed of 2.4 m/s (5 mph), mirroring the calm breezes of the preceding summer months. This consistency reflects a transitionary rhythm, where the air begins to hint at the approaching autumn, engaging with the vibrant landscape and inviting introspection. Historically, September's wind speed aligns closely with August’s, suggesting a lingering warmth before the cooler gusts of October emerge. Overall, the data reveals a trend of gradually diminishing wind speeds from early spring through late summer, before a slight resurgence in the final months of the year, hinting at the changing seasons that define Arita's unique charm.

Average September Wind Speed in Arita

The chart displays monthly wind speed patterns in Arita, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.12.82.82.61.82.32.42.4 m/s2.32.63.0
Data source: Arita September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Arita Compares to Other Months

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

September and January present stark contrasts in weather conditions. In September, temperatures range from a mild minimum of 16°C (61°F) to a sweltering maximum of 34°C (94°F), accompanied by high humidity at 84% and significant rainfall of 218 mm (8.6 in) over approximately 15 days. In contrast, January's climate is much cooler, with temperatures dipping as low as -2°C (28°F) and averaging around 7°C (44°F), while the maximum reaches only 18°C (64°F). Precipitation is also greatly reduced in January, averaging just 56 mm (2.2 in) over about 7 days, and humidity decreases to 73%. For more specific details on January weather in the region, you can check Arita weather in January.

September and February present stark contrasts in weather conditions. In September, the temperatures range from a mild 16°C (61°F) at night to a scorching maximum of 34°C (94°F) during the day, featuring high humidity of 84%. This month also sees significant rainfall, averaging 218 mm (8.6 in) over about 15 days. In contrast, February is much cooler, with temperatures dipping to a minimum of -2°C (29°F) and peaking at 21°C (70°F), resulting in an average of 7°C (45°F). Precipitation is less abundant in February, totaling 80 mm (3.2 in) across approximately 10 days. For more insights into February weather conditions, visit Arita weather in February.

The weather in September is characterized by warmer temperatures, with a minimum of 16°C (61°F) and an average of 24°C (76°F), reaching highs of 34°C (94°F). This month also faces significant rainfall, accumulating 218 mm (8.6 in) over about 15 days, coupled with high humidity levels of 84%. In contrast, March experiences much cooler conditions, with a minimum temperature of 2°C (36°F) and an average of 11°C (53°F), peaking at 23°C (73°F). Additionally, March records less precipitation, totaling 136 mm (5.3 in) across approximately 10 days, and a lower humidity level of 71%. For more detailed information, check out Arita weather in March.

In comparing the weather of September and April, we observe a significant contrast. September tends to be much warmer, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 34°C (94°F), while April experiences cooler temperatures, averaging between 4°C (39°F) and 29°C (84°F). Additionally, September is marked by higher humidity at 84% and more frequent rainfall, with 15 days of precipitation accumulating to 218 mm (8.6 in). In contrast, April has a lower humidity of 79% and less rain, with 9 days of precipitation totaling 118 mm (4.7 in). For more detailed insights into the weather during this time, you can refer to Arita weather in April.

September weather is characterized by warmer temperatures, with minimums around 16°C (61°F) and average highs reaching up to 34°C (94°F). In contrast, May experiences cooler conditions, with minimums at 8°C (46°F) and maximums peaking at 30°C (86°F). While September sees higher precipitation levels at 218 mm (8.6 in) over 15 days, May has somewhat less rainfall, totaling 177 mm (7.0 in) over 11 days. Additionally, humidity levels are slightly higher in May at 87%, compared to 84% in September. For more detailed information, you can check Arita weather in May.

September and June exhibit similar temperature ranges, with September showcasing slightly higher averages—min 16°C (61°F), avg 24°C (76°F), and max 34°C (94°F) compared to June's min 15°C (59°F), avg 23°C (74°F), and max 32°C (90°F). Both months experience significant rainfall, with September receiving 218 mm (8.6 in) over 15 days of precipitation, while June sees 209 mm (8.2 in) across 13 days. However, September's humidity is marginally lower at 84%, compared to June's higher 91%. For more detailed information, you can check Arita weather in June.

In comparing the weather of September and July, September tends to be slightly cooler with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 34°C (94°F), compared to the warmer July, which has temperatures ranging from 18°C (65°F) to 36°C (97°F). Additionally, while both months experience significant rainfall, July is notably wetter with 385 mm (15.2 in) of precipitation over 18 days, versus September's 218 mm (8.6 in) over 15 days. Humidity levels also peak in July at 97%, compared to a relatively lower 84% in September, making July feel more muggy. For a closer look at July's conditions, check out the Arita weather in July.

In comparing the weather between September and August, September shows a notable decrease in temperature with a minimum of 16°C (61°F) and an average of 24°C (76°F), compared to August's warmer minimum of 19°C (67°F) and an average of 28°C (83°F). Additionally, September experiences a maximum temperature of 34°C (94°F), which is significantly lower than August's peak of 38°C (100°F). While both months have similar precipitation days at 15, September's total rainfall is 218 mm (8.6 in), which is less than August's 297 mm (11.7 in). Humidity levels also drop from August's 94% to 84% in September, indicating a slight improvement in comfort. For more specific details about August weather, you can refer to Arita weather in August.

September and October showcase a noticeable shift in weather conditions. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 34°C (94°F), with an average of 24°C (76°F). The month experiences significant rainfall, totaling 218 mm (8.6 in) over 15 days, accompanied by high humidity levels at 84%. Conversely, October sees cooler temperatures, with a minimum of 10°C (49°F) and an average of 19°C (67°F), peaking at 31°C (88°F). Precipitation decreases to 116 mm (4.6 in), occurring over just 9 days, and humidity drops to 79%. The transition from September to October marks a shift towards crisper days with less rain, offering a different experience of the season. For more details, you can check Arita weather in October.

September and November showcase a stark contrast in weather patterns. In September, temperatures range from a minimum of 16°C (61°F) to a scorching maximum of 34°C (94°F), with an average of 24°C (76°F). The month is characterized by significant rainfall, totaling 218 mm (8.6 in) over approximately 15 days, accompanied by high humidity levels of 84%. In contrast, November brings much cooler temperatures, with a minimum of 3°C (37°F) and a maximum of 24°C (76°F), averaging at 14°C (57°F). This month sees significantly less precipitation at 55 mm (2.2 in) over just 7 days, along with a lower humidity of 75%. For more details on November weather, you can check Arita weather in November.

In September, the weather is characterized by warm temperatures, with a minimum of 16°C (61°F) and an average high of 34°C (94°F), making it feel quite warm and humid, with 84% humidity. This month sees significant rainfall, accumulating 218 mm (8.6 in) over about 15 days, contributing to a lush and vibrant atmosphere. In contrast, December brings a much cooler climate, with temperatures ranging from a chilly 0°C (32°F) at night to a maximum of 23°C (73°F) during the day. Precipitation drops significantly to 76 mm (3.0 in) spread across just 7 days, and humidity decreases to 72%, resulting in a more comfortable environment. For a detailed look at weather conditions during this month, you can check Arita weather in December.

Compare Arita's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Arita

As September arrives in Arita, the weather begins to shift, offering a unique blend of warmth and occasional rain. With milder temperatures than the sizzling summer months, Arita experiences an average of 24°C (76°F), providing a comfortable escape as the region transitions toward autumn. However, September is also notable for its higher humidity levels and increased rainfall, with significant precipitation making it one of the wetter months of the year. This combination not only refreshes the landscape but also creates a vibrant atmosphere for visitors. For a comprehensive overview of Arita's weather patterns throughout the year, check out Arita Climate.