September Weather in Shichuan, China

Last updated: August 21, 2025

September in Shichuan, China showcases a vibrant transition with maximum temperatures reaching up to 36°C (97°F), while the average hovers around a comfortable 25°C (77°F). As the month unfolds, residents and visitors can expect a refreshing dip at night, with minimum temperatures falling to 16°C (61°F). Rainfall is moderate, totaling 97 mm (3.8 in) over 12 days, contributing to a humidity level of 72% that envelops the region in a lush atmosphere. This blend of warmth and moisture creates an ideal backdrop for exploring the natural beauty and cultural richness of Shichuan during this lively month.

September Temperature in Shichuan

In September, Sichuan experiences a noticeable transition as summer gracefully gives way to autumn. The temperatures range from a comfortable 16°C (61°F) at night to a warm 36°C (97°F) during the day, with an average of 25°C (77°F)—making it one of the most pleasant months of the year. This shift from the oppressive heat of July and August, where highs linger around 38°C (100°F), brings a refreshing change, attracting locals and tourists alike to enjoy the vibrant landscapes. As the month progresses, the cooler evenings invite cozy gatherings, while the lingering warmth of the days ensures plenty of opportunities to explore the region's stunning scenery. The gradual decrease in temperature hints at the cooler months ahead, but for now, September’s warmth and vibrant scenery provide the perfect backdrop for outdoor adventures and cultural experiences.

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

The chart illustrates September temperature patterns in Shichuan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shichuan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec424555637176828377665645
Data source: Temperature data for Shichuan 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 Shichuan

In September, Shichuan, China experiences a notable shift in precipitation patterns, receiving an average of 97 mm (3.8 in) of rain over 12 days. This marks a decline from the intense summer months, where June peaked at 371 mm, gradually tapering off through August. The moderate rain in September signals the transition towards autumn, offering a refreshingly drier climate compared to the earlier part of the year. As the days shorten and the weather cools, this period provides a balanced reprieve, setting the stage for the forthcoming dryer months ahead.

September Precipitation Trends in Shichuan

The chart displays monthly precipitation patterns in Shichuan, 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 Shichuan, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec728019516223837127714898386064
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shichuan

In September, Shichuan experiences a noticeable decline in humidity, dropping to 72% after the peak summer months. This reduction signals the transition into autumn, contrasting sharply with the 91% humidity seen in July and the sustained high levels throughout the summer. While humidity begins to taper off, it remains higher than early winter months like October and November. This shift not only brings a reprieve from the oppressive heat but also hints at the forthcoming cooler and more comfortable conditions typical of the region as the year progresses. Overall, September's humidity reflects a pivotal moment in Shichuan's climatic cycle, bridging the gap between summer's sweltering days and the crispness of autumn.

September Average Humidity in Shichuan

This chart illustrates the average monthly humidity levels in Shichuan, 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 Shichuan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%71%81%86%87%87%91%87%72%74%80%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shichuan

As September rolls into Shichuan, China, the UV Index remains alarmingly high at 11, classifying it under the extreme exposure category. This marks a slight decrease from the peak of 12 seen throughout the summer months, but it's important to stay vigilant, as the burn time is still a mere 10 minutes. Over the months, we've observed a significant trend of increasing UV levels from the lower high category of 6 in January to this late-summer peak. Individuals enjoying the sunshine in September should take precautions, ensuring adequate sun protection to avoid the risks associated with prolonged exposure. For a detailed look at UV trends throughout the year, visit Shichuan UV Index.

Maximum UV Index Levels in Shichuan for September

The chart shows the monthly maximum UV Index (UVI) for Shichuan 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 Shichuan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec679101212121211965
Data source: Shichuan 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 Shichuan

As summer gently transitions into autumn, September in Shichuan, China, boasts a generous 255 hours of sunshine. This month stands out as a delightful turning point, as the sun's vibrant rays begin to ebb from the peak of August’s 309 hours. The gradual decrease marks a shift from the sultry heights of summer, yet still embraces a significant amount of brightness, offering perfect opportunities for outdoor exploration amidst the stunning fall foliage. As we look back, the steady rise from January’s 153 hours to this sun-kissed September reveals a seasonal invitation to soak up the warmth before the cooler months settle in. This engaging shift from the intense summer glow to the softer autumn light enriches the landscape, making September a captivating month in Shichuan.

Monthly Sunshine Duration in Shichuan: September Highlighted

The September sunshine duration represents the total number of hours Shichuan 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.
JanFebMarAprMayJunJulAugSepOctNovDec153h193h210h242h273h233h289h309h255h233h213h214h
Data source: Shichuan September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Shichuan During September

As September rolls into Shichuan, China, the likelihood of soaking up the sun starts to shine through, boasting a 55% chance of sunny weather. This marks a notable increase compared to the preceding summer months, where the sunniest days were dwindling, with July and June both hovering around only 17%. Interestingly, as the year transitions from the sweltering heat of summer to the more temperate fall, the chances of clear skies rise again, surpassing the fluctuating spring rates. With sunny days becoming more frequent as autumn approaches, September offers a welcome respite, encouraging outdoor activities and scenic adventures. It's undeniable that this month serves as a turning point for those looking to enjoy Shichuan's charm under the sun.

Percentage of Sunny Days in September in Shichuan

The chart illustrates the percentage of sunny days in Shichuan 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 Shichuan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%36%22%21%22%17%17%33%55%37%47%59%
Data source: Shichuan September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Shichuan in September

In Shichuan, China, the month of September signals a gentle transition as daylight begins to taper off from the summer's peak. This month enjoys approximately 12 hours of sunlight, slightly less than the 13 hours experienced from June through August. As autumn approaches, the gradual decrease in daylight mirrors nature’s shift towards a cooler climate. Following September, October brings even shorter days at 11 hours, underscoring the ongoing trend of diminishing daylight as the region prepares for winter. This rhythmic cycle not only enhances the beauty of the changing seasons but also influences daily life in this vibrant area.

Average Daylight Hours in Shichuan for September

The chart illustrates the variation in daylight duration in Shichuan throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 28m11h 8m11h 59m12h 52m13h 37m13h 59m13h 47m13h 9m12h 18m11h 25m10h 40m10h 16m
Data source: Shichuan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Shichuan

As September arrives in Shichuan, the winds begin to mellow, with an average speed of 1.7 m/s (4 mph), maintaining a gentle breeze that’s both refreshing and inviting. Notably, this month sits just below the more blustery July, which boasts the highest average wind speed at 2.2 m/s (5 mph). Interestingly, throughout the year, the wind speeds tend to fluctuate subtly, reflecting the changing seasons—from the brisk winds of early spring and the warmer, softer breezes of summer, to the invigorating gusts that characterize the onset of fall in October. Overall, September’s calm winds create a serene atmosphere, paving the way for the vibrant autumn that follows.

Average September Wind Speed in Shichuan

The chart displays monthly wind speed patterns in Shichuan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.92.01.92.01.81.62.21.61.7 m/s2.41.91.9
Data source: Shichuan September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Shichuan Compares to Other Months

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

September and January present starkly contrasting weather conditions. In September, temperatures typically range from a mild 16°C (61°F) to a high of 36°C (97°F), with an average of 25°C (77°F). This month also sees substantial rainfall, with precipitation totaling 97 mm (3.8 in) over about 12 days and humidity peaking at 72%. In contrast, January is much colder, featuring temperatures that range from a frigid -6°C (21°F) to a maximum of 22°C (72°F), with an average of 6°C (43°F). Less precipitation falls in January, totaling 72 mm (2.8 in) over 9 days, and humidity is lower at 65%. For more details on the weather during this month, you can visit Shichuan weather in January.

September and February present strikingly different weather conditions. In September, temperatures are typically warm, with averages around 25°C (77°F) and highs reaching up to 36°C (97°F), paired with a moderate humidity level of 72%. The month also experiences a fair amount of rainfall, with about 97 mm (3.8 in) over 12 days. In contrast, February is much cooler, featuring an average temperature of 7°C (45°F) and a minimum that can drop to -3°C (27°F). While February sees slightly less precipitation at 80 mm (3.2 in) over 11 days, the humidity remains comparable at 71%. For a more detailed look at weather conditions in February, you can visit Shichuan weather in February.

September and March present contrasting weather patterns, reflecting the transition between summer and spring. September typically has warmer temperatures, averaging around 25°C (77°F) with highs reaching up to 36°C (97°F), making it a month of lingering summer warmth. In contrast, March boasts a much cooler average temperature of 13°C (55°F), with nighttime lows dropping to 1°C (35°F), signaling the arrival of spring.

Precipitation is notably higher in March, with 195 mm (7.7 in) over 17 days, compared to September's 97 mm (3.8 in) over 12 days. This contributes to March's increased humidity, which is recorded at 81%, slightly surpassing September's 72%. Overall, while September is marked by warmth and moderate rain, March brings cooler temperatures and a wetter atmosphere. For a deeper look into the weather specifics, check Shichuan weather in March.

In comparing the weather between September and April, significant differences are apparent. September typically experiences warmer temperatures, with lows around 16°C (61°F) and highs reaching up to 36°C (97°F), while April sees cooler conditions, with minimums of just 3°C (38°F) and maximums hitting 32°C (90°F). Additionally, April has higher average precipitation at 162 mm (6.4 in) over 13 days, compared to September's 97 mm (3.8 in) across 12 days. Humidity levels also differ, with April being slightly more humid at 86%, compared to September's 72%. For more specific details on weather patterns, you can refer to Shichuan weather in April.

In comparing the weather patterns of September and May, we observe notable differences in temperature, precipitation, and humidity levels. September typically offers warmer conditions with minimum temperatures around 16°C (61°F) and an average high of 36°C (97°F), making it one of the hotter months. In contrast, May features slightly cooler temperatures, with a minimum of 11°C (51°F) and an average of 22°C (71°F), as it transitions into summer.

However, May is characterized by significantly higher precipitation, receiving 238 mm (9.4 in) over 16 days, compared to September's 97 mm (3.8 in) over 12 days. This results in higher humidity levels in May, peaking at 87%, while September’s humidity rests at a lower 72%. For a more detailed look at the weather in May, you can visit Shichuan weather in May.

In comparing the weather between September and June, both months exhibit warm temperatures, with September featuring a slightly higher average temperature of 25°C (77°F) compared to June's 24°C (76°F). However, June experiences more rainfall, receiving 371 mm (14.6 in) over 20 days, while September has significantly less precipitation at 97 mm (3.8 in) over only 12 days. Additionally, humidity levels are higher in June at 87%, compared to 72% in September, contributing to a more humid and possibly uncomfortable feel during the earlier month. For a detailed look at June weather, you can refer to this link: Shichuan weather in June.

September weather tends to be slightly milder compared to July, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 36°C (97°F), whereas July sees higher temperatures from a minimum of 20°C (68°F) to a peak of 38°C (100°F). Precipitation also varies significantly; September experiences 97 mm (3.8 in) over 12 rainy days, while July faces much heavier rainfall at 277 mm (10.9 in) across 18 days. Additionally, humidity levels are notably higher in July at 91%, compared to 72% in September. This makes September a more comfortable month for outdoor activities. For more detailed information, you can check Shichuan weather in July.

In comparing the weather conditions of September and August, it is apparent that September tends to be slightly cooler, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 36°C (97°F), while August is warmer, featuring a minimum of 19°C (66°F) and a peak of 38°C (101°F). Additionally, humidity levels in August are notably higher at 87%, compared to September's 72%. Precipitation also shows a marked difference, with August receiving 148 mm (5.8 in) over 15 days, whereas September experiences 97 mm (3.8 in) over 12 days, indicating a drier trend as summer transitions into fall. For more details, you can refer to Shichuan weather in August.

September weather tends to be warmer and more humid than October, with temperatures ranging from a minimum of 16°C (61°F) to a scorching maximum of 36°C (97°F) and an average of 25°C (77°F). In contrast, October sees a significant drop in temperatures, with a minimum of 8°C (47°F), an average of 19°C (66°F), and a maximum of 34°C (94°F). While September experiences more precipitation (97 mm over 12 days) and humidity levels at 72%, October brings less rain (38 mm over 6 days) and slightly higher humidity at 74%. For additional details on October weather in Shichuan, you can refer to Shichuan weather in October.

September and November present stark contrasts in weather. September typically enjoys warmer temperatures, with a minimum of 16°C (61°F) and an average of 25°C (77°F), peaking at a scorching 36°C (97°F). However, it also experiences higher precipitation, averaging 97 mm (3.8 in) over approximately 12 rainy days, along with humidity levels around 72%. In contrast, November ushers in much cooler conditions with temperatures dropping to a minimum of 1°C (34°F) and averaging only 13°C (56°F), though it can reach a maximum of 27°C (81°F) on milder days. Precipitation is lower in November at 60 mm (2.4 in) over about 10 days, accompanied by a slightly higher humidity level of 80%. For more detailed information, check out Shichuan weather in November.

September and December present strikingly different weather patterns. In September, temperatures range from a mild 16°C (61°F) at night to a scorching high of 36°C (97°F), with an average temperature of 25°C (77°F). This month experiences considerable rainfall, with 97 mm (3.8 in) spread over 12 days and a relative humidity of 72%. In contrast, December offers a much cooler climate, with temperatures dipping as low as -4°C (25°F) at night and peaking at only 21°C (69°F), reaching an average of 7°C (46°F). Precipitation is also lesser in December, totaling 64 mm (2.5 in) over just 8 days, accompanied by a higher humidity level of 78%. For more details on the December weather, you can visit Shichuan weather in December.

Compare Shichuan's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Shichuan

As September unfolds in Shichuan, the weather begins to show signs of transition, presenting a delightful mix of warmth and humidity. This month feels noticeably warmer compared to the preceding summer, with the daily temperatures still basking in the sun while the evenings offer a gentle reprieve. While September does bring about some rainfall, with about twelve days experiencing precipitation, it also stands out for having a comfortable average temperature that invites both locals and travelers alike to explore its scenic landscapes. The increased humidity can make the air feel richer, adding a unique charm to the atmosphere. Whether you are soaking in the sun or enjoying the refreshing drizzle, September's weather truly stands apart in the annual cycle. For more insights into seasonal variations, check out Shichuan Climate.