September Weather in Horyuji, Japan

Last updated: August 21, 2025

In September, Horyuji, Japan experiences a vibrant transition into autumn, with temperatures reaching a maximum of 36°C (97°F) and an average of 24°C (75°F). While the warmth lingers, the month also brings a hint of cooler days, particularly with a minimum temperature of 12°C (53°F). Rainfall is notable, with 181 mm (7.1 in) accumulated over approximately 16 rainy days, contributing to a high humidity level of 87%. This blend of warmth and moisture creates a unique atmosphere, perfect for experiencing the cultural richness of the region while navigating the occasional showers.

September Temperature in Horyuji

In September, Horyuji experiences a delightful transition into autumn, with temperatures showcasing a comfortable range. The month kicks off with minimums averaging around 12°C (53°F), bringing a refreshing crispness to the air, while daytime highs soar up to 36°C (97°F), reflecting the lingering summer warmth. The overall average temperature rests around 24°C (75°F), offering a pleasant balance for outdoor activities and sightseeing. As the month progresses, the shift toward cooler conditions becomes more noticeable, paving the way for October's chill. This time of year is perfect for exploring Horyuji's stunning architecture as the warm days gradually give way to cooler evenings, providing an inviting atmosphere for visitors.

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

The chart illustrates September temperature patterns in Horyuji, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Horyuji, 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).
JanFebMarAprMayJunJulAugSepOctNovDec394148576672798275645343
Data source: Temperature data for Horyuji 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 Horyuji

September in Horyuji, Japan, sees a notable shift in precipitation patterns as the summer months give way to early autumn. With 181 mm (7.1 in) of rain falling over 16 days, this month marks a significant decrease from the torrential downpours of July, which recorded a staggering 290 mm (11.4 in) over 21 days. However, September's rainfall remains substantial, just above the average seen in August and reflecting the lingering effects of the monsoon season. This transition is accompanied by a reduction in rainy days compared to July, yet it still sets the stage for October's anticipated increase in precipitation. Overall, September serves as a bridge, showcasing consistent moisture that nurtures Horyuji's lush surroundings as it gracefully steps into the fall season.

September Precipitation Trends in Horyuji

The chart displays monthly precipitation patterns in Horyuji, 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 Horyuji, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec60731291311571922901741812685170
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Horyuji

September in Horyuji, Japan, sees a noticeable shift in humidity levels as summer gradually gives way to autumn, with the average humidity resting at 87%. This marks a slight decrease from the peak humidity of 93% experienced in July, while remaining higher than the spring months that typically hover around the mid-70s. As the heat of August lingers, reflected in its 91% humidity, September maintains a certain stickiness, hinting at the lingering warmth before the air begins to cool. Following this month, October typically brings a further dip to 85%, signaling the transition to a drier climate as the year progresses into the fall season. Overall, September stands as a transitional bridge, balancing summer's humidity with the approaching freshness of autumn.

September Average Humidity in Horyuji

This chart illustrates the average monthly humidity levels in Horyuji, 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 Horyuji is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%74%76%83%87%93%91%87%85%83%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Horyuji

In September, Horyuji, Japan experiences a UV Index of 10, falling into the very high exposure category, which means residents and visitors should be mindful of sun safety measures. This trend follows a summer where the UV Index peaked at 12 in both July and August, signaling extreme sun exposure risks. As the seasons shift into fall, there's a slight reprieve in burn time, increasing to 15 minutes before skin damage can occur. However, the UV levels remain significant, reminding everyone of the importance of protecting their skin as they enjoy the lingering warmth of early autumn. For more detailed UV information, check out Horyuji UV Index.

Maximum UV Index Levels in Horyuji for September

The chart shows the monthly maximum UV Index (UVI) for Horyuji 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 Horyuji typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121210764
Data source: Horyuji 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 Horyuji

In Horyuji, Japan, September greets visitors with a generous 247 hours of sunshine, reflecting a slight dip from the sun-drenched heights of August but still surpassing the early autumn levels of October and November. As summer bids farewell, the sunshine hours transition from the peak of 312 in August to a comforting warmth in September, hinting at the changing seasons. This month marks a shift from the vibrant brightness of summer, yet it retains a healthy amount of daylight, paving the way for the milder and more subdued sunlight of autumn. With the gradual decrease in hours since May's remarkable 293 hours, September serves as a reminder of nature's rhythm, evoking a sense of balance as days begin to shorten and coolness settles in.

Monthly Sunshine Duration in Horyuji: September Highlighted

The September sunshine duration represents the total number of hours Horyuji 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.
JanFebMarAprMayJunJulAugSepOctNovDec189h234h267h282h293h270h264h312h247h240h240h226h
Data source: Horyuji September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Horyuji During September

In Horyuji, Japan, September experiences a modest likelihood of sunny weather, with only a 28% chance of sunshine. This trend continues from the summer months, where July and August also see similarly low probabilities of clear skies. As the seasons shift into autumn, the chances of sun begin to improve, peaking at 58% in December. This indicates a noteworthy transition, where the likelihood of bright days increases as Horyuji moves past the humid summer and into the clearer skies of autumn and early winter. So, while September might not boast the sunniest disposition, the months beyond promise a brighter outlook.

Percentage of Sunny Days in September in Horyuji

The chart illustrates the percentage of sunny days in Horyuji 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 Horyuji experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%53%42%46%29%23%33%28%28%52%53%58%
Data source: Horyuji September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Horyuji in September

As September unfolds in Horyuji, Japan, the daylight begins to wane, offering approximately 12 hours of light—a gentle reminder of the approaching autumn. This month showcases a slight decrease from the lengthy 14 hours of daylight enjoyed in the peak summer months of June and July. The transition continues a trend seen throughout the year: starting at 10 hours in January and gradually expanding to a summer peak, before tapering off with the shorter days of fall. With daylight durations gradually shifting from the longest days of summer, September serves as a bridge into the cozy embrace of autumn, inviting reflections on nature's cyclical rhythm.

Average Daylight Hours in Horyuji for September

The chart illustrates the variation in daylight duration in Horyuji throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 6m10h 55m11h 58m13h 3m13h 57m14h 25m14h 11m13h 23m12h 21m11h 17m10h 20m9h 52m
Data source: Horyuji daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Horyuji

As summer gently transitions into autumn, September in Horyuji, Japan, unveils a softer breeze, with an average wind speed of just 1.8 m/s (4 mph). This marks a dip from the preceding months, where the winds remained slightly stronger during August. Interestingly, this overall trend indicates that the wind speed tends to gradually decrease as the year progresses into the latter months, reaching its softest in June and July. Yet, September, with its tranquil gusts, offers a perfect backdrop for experiencing the serene beauty of Horyuji as the vibrant hues of early autumn begin to emerge, creating a peaceful atmosphere ideal for reflection and exploration.

Average September Wind Speed in Horyuji

The chart displays monthly wind speed patterns in Horyuji, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.92.42.52.51.61.82.21.8 m/s1.92.32.7
Data source: Horyuji September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Horyuji Compares to Other Months

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

September weather is characterized by significantly warmer temperatures, with minimums around 12°C (53°F) and highs reaching up to 36°C (97°F), contributing to an average of 24°C (75°F). The month also experiences high humidity at 87% and considerable rainfall of 181 mm (7.1 in) over approximately 16 days. In stark contrast, January brings much colder conditions, with temperatures dipping to a minimum of -6°C (22°F) and averaging just 4°C (40°F), peaking at 16°C (61°F). This winter month sees less precipitation, totaling 60 mm (2.4 in) over about 9 days, while the humidity decreases slightly to 82%. For more detailed January weather information, check out Horyuji weather in January.

September and February present stark contrasts in weather patterns. In September, temperatures can soar between a minimum of 12°C (53°F) and a maximum of 36°C (97°F), with an average of 24°C (75°F). This month is characterized by high humidity at 87% and considerable precipitation, totaling 181 mm (7.1 in) over 16 days. In contrast, February is much colder, with temperatures ranging from a chilly -4°C (24°F) to a milder 19°C (67°F), averaging just 5°C (41°F). Precipitation in February is significantly lower at 73 mm (2.9 in) over 8 days, alongside a reduced humidity of 79%. For more detailed climate information, you can visit Horyuji weather in February.

In September, the weather tends to be much warmer and more humid compared to March. With minimum temperatures around 12°C (53°F) and averages reaching up to 24°C (75°F), the month can see highs soaring to 36°C (97°F). It also experiences significant rainfall, with 181 mm (7.1 in) spread over 16 days, resulting in a humid atmosphere averaging 87%.

In contrast, March heralds a shift towards cooler temperatures, with minimums dropping to -2°C (29°F) and average highs around 9°C (49°F), peaking at 21°C (71°F). Precipitation is less frequent, totaling 128 mm (5.1 in) across 12 days, and the humidity is considerably lower at 74%. For a closer look at the March weather in the area, you can visit Horyuji weather in March.

September and April exhibit distinctly different weather patterns. In September, temperatures range from a minimum of 12°C (53°F) to a scorching maximum of 36°C (97°F), with an average of 24°C (75°F). This month experiences considerable precipitation, with 181 mm (7.1 in) falling over 16 days and humidity levels reaching 87%, creating a humid environment. In contrast, April features milder temperatures, with a minimum of 0°C (32°F), an average of 14°C (57°F), and a maximum of 26°C (79°F). Precipitation is lower at 131 mm (5.1 in) over just 10 days, and humidity is notably less at 76%. For more insights into April weather, you can check Horyuji weather in April.

September weather tends to be significantly warmer than that of May, with average temperatures soaring to 24°C (75°F) compared to May's average of 19°C (66°F). The maximum temperatures in September can reach up to 36°C (97°F), while May peaks at a much milder 31°C (88°F). Additionally, September experiences more rain, with 181 mm (7.1 in) of precipitation over 16 days, whereas May sees 157 mm (6.2 in) over just 10 days, contributing to a slightly lower humidity level of 83% in May compared to September's 87%. For a detailed look at the weather in May, you can visit Horyuji weather in May.

In comparing the weather of September and June, both months exhibit similar patterns in temperatures and humidity levels, with September showing a slightly wider range. September boasts a minimum temperature of 12°C and can reach highs of 36°C, averaging around 24°C, while June has a minimum of 11°C, a maximum of 31°C, and an average of 22°C. Precipitation is slightly higher in June at 192 mm over 15 days compared to September's 181 mm over 16 days, indicating more frequent but perhaps lighter showers in September. Both months share a high humidity level of 87%. For more specific details, visit Horyuji weather in June.

September's weather presents a noteworthy contrast to that of July. While July boasts warmer minimum temperatures averaging 19°C (66°F) and higher average humidity at 93%, September sees cooler nights with a minimum of 12°C (53°F). Both months experience significant precipitation, but July has a higher total of 290 mm (11.4 in) over 21 days compared to September’s 181 mm (7.1 in) across 16 days. Overall, September's weather is slightly less humid and offers a wider temperature range, making it feel more varied than the warmer July experience. For more detailed insights, check Horyuji weather in July.

September weather shows a cooler trend compared to August, with minimum temperatures dropping from 17°C (64°F) in August to 12°C (53°F) in September. The average temperature for September is also lower at 24°C (75°F), compared to August's average of 28°C (83°F). Interestingly, both months share the same maximum temperature of 36°C (97°F) in September, but the transition to fall in September brings increased precipitation, with 181 mm (7.1 in) over 16 days, compared to August's 174 mm (6.8 in) over 15 days. Humidity levels remain high in both months, peaking at 87% in September compared to 91% in August. For a closer look at the weather specifics in August, check out Horyuji weather in August.

September typically experiences warmer temperatures, with averages around 24°C (75°F) and highs reaching up to 36°C (97°F). In contrast, October sees a noticeable drop, averaging 18°C (64°F) and peaking at 30°C (87°F), reflecting the transition into cooler autumn weather. While September is characterized by high humidity levels at 87% and considerable rainfall totaling 181 mm (7.1 in) over 16 days, October brings slightly lower humidity at 85% along with increased precipitation of 268 mm (10.6 in) over just 13 days. For more detailed insight into weather patterns, you can visit Horyuji weather in October.

September weather is characterized by warm temperatures, with an average of 24°C (75°F) and maximums soaring up to 36°C (97°F). However, it also brings significant rainfall, averaging 181 mm (7.1 in) over 16 days and a high humidity level of 87%. In contrast, November ushers in cooler conditions, with temperatures ranging from a chilly -1°C (30°F) to a milder 25°C (76°F) and an average of 12°C (53°F). Precipitation decreases significantly to 51 mm (2.0 in) across just 7 days, accompanied by slightly lower humidity at 83%. For more detailed information, check out Horyuji weather in November.

The weather in September is marked by significantly higher temperatures, with a minimum of 12°C (53°F) and an average of 24°C (75°F), peaking at a maximum of 36°C (97°F). This month also experiences considerable rainfall, totaling 181 mm (7.1 in) over 16 days, combined with high humidity levels at 87%. In contrast, December sees a drastic drop in temperatures, where the minimum reaches -3°C (26°F) and the average is only 6°C (44°F), while the maximum is a milder 22°C (72°F). Precipitation decreases to 70 mm (2.8 in) over just 8 days, accompanied by slightly lower humidity of 83%. For more specific details about conditions in December, you can check Horyuji weather in December.

Compare Horyuji's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Horyuji

September in Horyuji marks a notable shift in weather patterns, characterized by its warm temperatures and heightened humidity, making it significantly more sultry than the preceding summer months. With rainfall occurring on approximately half the days of the month, visitors can expect a lush and vibrant landscape, although the occasional downpour could dampen outdoor plans. As the mercury begins to dip from the summer highs, September offers a refreshing contrast, with an average temperature that lingers around a comfortable 24°C (75°F). For those curious about the annual climatic transitions, more detailed insights can be found at Horyuji Climate.