September Weather in Chengjiang, China

Last updated: August 21, 2025

In Chengjiang, China, September showcases a temperate climate with an average temperature of 28°C (82°F), peaking at a maximum of 38°C (101°F) during the warmest days. The month experiences a minimum temperature of 16°C (60°F), allowing for comfortable evenings. Alongside this warmth, the region receives an average precipitation of 81 mm (3.2 in) over 10 days, contributing to a humidity level of 62%. This blend of heat and moisture creates a unique atmosphere, perfect for exploring the natural beauty of Chengjiang amidst its seasonal transitions.

September Temperature in Chengjiang

In September, Chengjiang transitions into a warm embrace of early autumn, with temperatures ranging from a comfortable 16°C (60°F) at night to a steamy 38°C (101°F) during the day. The average temperature settles around 28°C (82°F), reflecting a continuation of the summer's warmth while hinting at the coolness to come in the following months. This month stands out as a bridge between the sweltering summer heat of July and August, which reached maximums of 39°C (103°F) and 38°C (101°F), respectively, and the cooler fall temperatures that follow in October. As the city begins to cool down, September offers the perfect opportunity to enjoy the lingering warmth before the chill of winter sets in.

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

The chart illustrates September temperature patterns in Chengjiang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chengjiang, 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).
JanFebMarAprMayJunJulAugSepOctNovDec475060677681878682706050
Data source: Temperature data for Chengjiang 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 Chengjiang

September in Chengjiang, China, ushers in a shift toward drier conditions as summer transitions to autumn. With 81 mm (3.2 in) of precipitation spread over 10 days, the month showcases a notable reduction in rainfall compared to the earlier summer months, which often exceed 300 mm. This pattern reflects a broader trend of declining rainfall from the peak in June, which sees over 319 mm (12.6 in), to more moderate levels as the year progresses. As October approaches, the precipitation continues to taper off, hinting at an upcoming dry spell. The September weather thus provides a gentle reminder of nature's rhythm, balancing the lush greenery of summer with the crisp promise of fall.

September Precipitation Trends in Chengjiang

The chart displays monthly precipitation patterns in Chengjiang, 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 Chengjiang, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec448215714721631912312081456935
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chengjiang

As summer fades into autumn, September in Chengjiang, China, showcases a refreshing decrease in humidity, dipping to 62%. This marks a notable shift from the preceding sweltering months, where humidity levels peaked at 89% in July. Following a trend of rising moisture from January through August, September transitions into a more comfortable climate, aligning with October's similar humidity level. While the earlier months of the year exhibit steadily increasing humidity, September's drop signals the onset of crisper, drier days that are perfect for enjoying the natural beauty of this vibrant region. This picturesque change heralds the arrival of fall, inviting locals and visitors alike to savor the season's charm.

September Average Humidity in Chengjiang

This chart illustrates the average monthly humidity levels in Chengjiang, 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 Chengjiang is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%69%81%82%86%86%89%86%62%62%71%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chengjiang

In September, Chengjiang experiences a UV Index of 11, categorizing the exposure as extreme and limiting safe sun exposure to just 10 minutes. This marks a slight drop from the peak levels seen in July and August, yet it remains crucial to take precautions as the sun's rays can still lead to skin damage in a short period. As the region transitions into autumn, the UV Index begins to decline gradually, but early September sunlight can still pack a punch, reminiscent of summer's intensity. Staying informed and protected is essential to enjoy the remaining sunny days safely. For more details, visit Chengjiang UV Index.

Maximum UV Index Levels in Chengjiang for September

The chart shows the monthly maximum UV Index (UVI) for Chengjiang 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 Chengjiang typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810111212131211986
Data source: Chengjiang 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 Chengjiang

September in Chengjiang, China, continues the trend of warm and sun-filled months with 280 hours of sunshine, making it a delightful prelude to autumn. The month dips slightly from the peak of 323 hours in August, yet it maintains a commendable brightness compared to earlier months in the year. From a robust start in the spring with 238 hours in April and 281 hours in May, the sunshine gradually builds to its summer zenith in July. As the year progresses into October, Chengjiang still enjoys a respectable 220 hours, revealing a distinct pattern of high daylight hours leading into the fall. This enduring warmth enhances the charm of September, inviting both locals and visitors to bask in the lingering summer glow.

Monthly Sunshine Duration in Chengjiang: September Highlighted

The September sunshine duration represents the total number of hours Chengjiang 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.
JanFebMarAprMayJunJulAugSepOctNovDec163h215h197h238h281h249h309h323h280h220h219h214h
Data source: Chengjiang September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Chengjiang During September

September marks a notable shift in Chengjiang's weather, bringing a 68% chance of sunny days, which makes it one of the sunniest months of the year. As summer fades, the likelihood of clear skies increases significantly compared to the preceding months like June and July, where sunshine is scarce at just 14% and 32%, respectively. This upward trend in sunshine continues to provide a refreshing contrast to the gloom of earlier months, hinting at the delight of autumnal warmth. Overall, September stands out as a prime time to enjoy outdoor activities under a sun-drenched sky in this picturesque part of China.

Percentage of Sunny Days in September in Chengjiang

The chart illustrates the percentage of sunny days in Chengjiang 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 Chengjiang experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%46%29%17%16%14%32%23%68%32%45%49%
Data source: Chengjiang September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Chengjiang in September

As September unfolds in Chengjiang, the daylight duration begins to wane, offering 12 hours of sunlight—a gradual descent from the summer peak. This month marks a transition, with the sun hanging a little lower in the sky and days shortening in anticipation of autumn. Following the summer months of consistent 13-hour days, the shift in September signals nature's slow embrace of cooler temperatures. With daylight hours decreasing steadily from the vibrant summer months to the cozy atmosphere of fall, it's a beautiful reminder of the seasonal rhythms that shape daily life and activities in this picturesque region of China.

Average Daylight Hours in Chengjiang for September

The chart illustrates the variation in daylight duration in Chengjiang throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 39m11h 14m12h12h 47m13h 27m13h 46m13h 36m13h 2m12h 17m11h 30m10h 49m10h 28m
Data source: Chengjiang daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Chengjiang

As September unfolds in Chengjiang, the average wind speed dips to 2.0 m/s (4 mph), marking one of the calmest months of the year. This gentle breeze follows a summer peak in July at 2.8 m/s (6 mph), suggesting that the region gradually transitions towards a more tranquil climate. While July brought lively winds, August's swift decline to 2.0 m/s (5 mph) hints at the onset of autumn's soothing embrace. As the months progress, we can anticipate a steady increase, culminating in October's brisk 3.1 m/s (7 mph), as the winds gather strength once more. Thus, September stands as a serene pause in the rhythm of Chengjiang's winds, perfectly aligning with nature's cycle of change.

Average September Wind Speed in Chengjiang

The chart displays monthly wind speed patterns in Chengjiang, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.12.32.22.42.42.82.02.0 m/s3.12.02.3
Data source: Chengjiang September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Chengjiang Compares to Other Months

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

September and January present starkly contrasting weather conditions. In September, temperatures range from a minimum of 16°C (60°F) to a scorching maximum of 38°C (101°F), with an average of 28°C (82°F). The month experiences significant rainfall, totaling 81 mm (3.2 in) over about 10 days, contributing to a humidity level of 62%. In contrast, January sees a much cooler climate, with temperatures dipping as low as -4°C (26°F) and reaching a maximum of 25°C (77°F), averaging around 9°C (48°F). This winter month has less precipitation, totaling 44 mm (1.7 in) across only 6 days, while humidity rises slightly to 65%. For a deeper understanding of January weather patterns, you can explore Chengjiang weather in January.

September and February present contrasting weather experiences. In September, temperatures range from a mild 16°C (60°F) to a sweltering 38°C (101°F), with an average of 28°C (82°F), creating an overall warm and humid atmosphere with 62% humidity. Conversely, February brings a much chillier climate, with temperatures dipping as low as -4°C (26°F) and averaging around 10°C (51°F), reaching a maximum of 27°C (81°F). Both months experience similar levels of precipitation, around 81-82 mm (3.2 in) over approximately 10 days, though February's humidity is slightly higher at 69%. For more detailed insights, you can explore Chengjiang weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a comfortable minimum of 16°C (60°F) to a scorching maximum of 38°C (101°F), with an average of 28°C (82°F). The month experiences moderate precipitation of 81 mm (3.2 in) over about 10 days, while humidity sits at 62%. In contrast, March sees cooler temperatures, with a minimum of 4°C (40°F) and a maximum reaching 31°C (88°F), averaging 16°C (60°F). This month is considerably wetter, boasting 156 mm (6.2 in) of precipitation spread over 18 days and higher humidity levels at 81%. For a detailed look at the weather during March, visit Chengjiang weather in March.

In September, the weather tends to be warmer, with average temperatures around 28°C (82°F) and maximums soaring up to 38°C (101°F). The month also experiences significant humidity at 62% and a moderate amount of precipitation totaling 81 mm (3.2 in) over about 10 days. In contrast, April brings cooler temperatures, with daily averages around 20°C (68°F) and highs reaching up to 34°C (93°F). However, it is also a wetter month, with precipitation levels at 147 mm (5.8 in), spread across 17 days and accompanied by higher humidity at 82%. For a more detailed comparison, you can view Chengjiang weather in April.

In September, the weather features a warmer average temperature of 28°C (82°F), with minimums of 16°C (60°F) and maximums reaching up to 38°C (101°F). However, it experiences a moderate level of precipitation at 81 mm (3.2 in) over approximately 10 days, resulting in a humidity of 62%. In contrast, May's climate is cooler, with an average temperature of 24°C (76°F), ranging from a minimum of 13°C (55°F) to a maximum of 37°C (98°F). Notably, May is much wetter, with 215 mm (8.5 in) of precipitation occurring over 19 days and higher humidity levels at 86%. For more detailed information about May weather, you can check Chengjiang weather in May.

In comparing the weather between June and September, September tends to be a bit hotter, with average temperatures lingering around 28°C (82°F) and a maximum of 38°C (101°F). However, the cooler nights in September start at a minimum of 16°C (60°F), making evenings more pleasant compared to June, which has a minimum temperature of 19°C (66°F). Despite having similar average temperatures, June is significantly wetter, receiving 319 mm (12.6 in) of rain over 19 days, while September only sees 81 mm (3.2 in) over 10 days. Additionally, June's higher humidity at 86% contributes to a more muggy atmosphere compared to September's 62%. For more detailed insights on June weather, you can refer to Chengjiang weather in June.

In comparing the weather between September and July, September generally offers slightly milder temperatures, with a minimum of 16°C (60°F) and an average of 28°C (82°F), compared to July's minimum of 23°C (73°F) and average of 30°C (87°F). July tends to be the hotter month, reaching a maximum of 39°C (103°F), just edging out September's maximum of 38°C (101°F). Additionally, July experiences higher humidity levels at 89%, contributing to a more oppressive summer feel, while September's humidity is more manageable at 62%. Precipitation is also notable, with July receiving 123 mm (4.8 in) over 12 days, compared to September’s 81 mm (3.2 in) over 10 days. For more detailed insights, you can explore Chengjiang weather in July.

September weather is characterized by slightly cooler temperatures, with minimums around 16°C (60°F) and average highs of 28°C (82°F), compared to August’s warmer minimum of 23°C (74°F) and average of 30°C (87°F). Both months experience maximum temperatures peaking at 38°C (101°F). However, September sees reduced precipitation at 81 mm (3.2 in) over 10 days, while August has higher rainfall at 120 mm (4.7 in) across 15 days, alongside increased humidity at 86%. For further details, visit Chengjiang weather in August.

In September, temperatures are typically warmer, with a minimum of 16°C (60°F) and an average high reaching 38°C (101°F), while October sees a cooler feel, with temperatures ranging from a minimum of 10°C (51°F) to an average of 21°C (70°F). Precipitation is also noticeably lower in October, amounting to 45 mm (1.8 in) over 7 days, compared to September's 81 mm (3.2 in) over 10 days. Additionally, while humidity remains consistent at 62% for both months, the overall climate in October is milder and more comfortable. For specific October conditions, you can check Chengjiang weather in October.

In comparing the weather patterns of September and November, significant differences emerge. September typically boasts warmer temperatures, with averages reaching up to 28°C (82°F) and maximums hitting 38°C (101°F), while November sees cooler averages around 16°C (60°F) and maximums of 31°C (89°F). Additionally, September experiences higher precipitation levels at 81 mm (3.2 in) over 10 days, compared to November’s 69 mm (2.7 in) over the same number of days. Interestingly, November also exhibits increased humidity at 71%, compared to September’s 62%. For more detailed information about November weather, you can visit Chengjiang weather in November.

In September, the weather is characterized by warm temperatures, with averages around 28°C (82°F) and a maximum reaching as high as 38°C (101°F). This month also sees considerable humidity at 62% and frequent precipitation on about 10 days, totaling 81 mm (3.2 in). In contrast, December brings a significant drop in temperature, with averages around 10°C (50°F) and nighttime lows dipping to -1°C (30°F). Although the month is cooler, humidity rises to 75%, and precipitation is less frequent, averaging 35 mm (1.4 in) over 8 days. For those interested in more details, you can check Chengjiang weather in December.

Compare Chengjiang's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Chengjiang

As September arrives in Chengjiang, the weather transitions into a delightful end-of-summer vibe, characterized by milder temperatures and increased humidity compared to the sweltering summer months. With an average temperature hovering around a pleasant 28°C (82°F), the heat begins to subside, making outdoor activities more enjoyable. However, expect occasional rain, as the month sees an uptick in precipitation days, contributing to the lush greenery typical of this region. Overall, September offers a refreshing break from the extremes, providing a perfect backdrop for exploring Chengjiang's natural beauty. For more details on Chengjiang's climate throughout the year, check out Chengjiang Climate.