September Weather in Yangzhou, China

Last updated: August 21, 2025

In September, Yangzhou, China experiences a warm and humid climate, with temperatures ranging from a maximum of 35°C (96°F) to a minimum of 16°C (61°F). The average temperature settles around a comfortable 25°C (77°F), ideal for outdoor activities. During this month, precipitation totals approximately 121 mm (4.8 in) over about 10 days, reflecting the region's humidity level of 73%. Visitors can expect a blend of sunny days interspersed with occasional rain, making it a dynamic time to explore the city's cultural treasures.

September Temperature in Yangzhou

In September, Yangzhou experiences a delightful transition into fall, with temperatures that reflect the tail end of summer's warmth. The minimum temperature settles at a comfortable 16°C (61°F), while the average rises to a pleasant 25°C (77°F), peaking at a maximum of 35°C (96°F). This month marks a notable shift from the sweltering heat of July and August, where highs frequently reach the upper 30s. As autumn approaches, the warmth lingers but begins to soften, creating an inviting atmosphere perfect for exploring the city's picturesque landscapes and rich cultural heritage. September’s climate strikes a balance, anchoring Yangzhou in mild yet still summery weather, ideal for both locals and visitors alike.

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

The chart illustrates September temperature patterns in Yangzhou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yangzhou, 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).
JanFebMarAprMayJunJulAugSepOctNovDec424555637278838477655645
Data source: Temperature data for Yangzhou 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 Yangzhou

In Yangzhou, China, September marks a transitional period in the climate cycle, showcasing a noticeable decrease in precipitation compared to the peak summer months. With 121 mm (4.8 in) of rain falling over just 10 days, it signals a shift away from the heavy downpours experienced in July and June, which boasted totals of 275 mm (10.8 in) and 316 mm (12.4 in), respectively. This reduction not only offers relief from the sweltering summer humidity but also prepares the landscape for the cooler autumn days ahead. As the city approaches October, the precipitation continues to dwindle, highlighting a clear trend towards dryer weather with just 36 mm (1.4 in) expected, emphasizing the rhythm of seasonal change in this vibrant region.

September Precipitation Trends in Yangzhou

The chart displays monthly precipitation patterns in Yangzhou, 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 Yangzhou, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec6580169161188316275171121364747
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yangzhou

In September, Yangzhou experiences a noticeable dip in humidity, dropping to 73%, a refreshing change after the sweltering summer months, which see levels peak at 90% in July. This shift marks a significant contrast to the peak humidity observed from March through August, where moisture levels consistently hover above 80%. The easing of humidity in September sets the stage for more comfortable weather, as the city transitions into autumn. Although humidity levels remain higher than in the cooler months of October and November, which both also sit at 73%, September’s moderate levels often draw locals and visitors alike to enjoy the changing scenery with its crisp air and vibrant foliage.

September Average Humidity in Yangzhou

This chart illustrates the average monthly humidity levels in Yangzhou, 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 Yangzhou is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec69%73%82%86%86%86%90%86%73%73%80%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yangzhou

As September rolls into Yangzhou, the UV Index indicates a very high level of solar radiation at 10, suggesting that outdoor enthusiasts should remain vigilant about sun protection. Compared to the summer months, which reached an extreme UV Index of 12, there's a slight decrease in intensity, allowing for 15 minutes of sun exposure before risking sunburn. This seasonal decline mirrors the trend observed in the transition from August to September, as temperatures begin to cool while still retaining significant sun exposure. With this in mind, it's crucial to stay informed and take necessary precautions. For more details, check the Yangzhou UV Index.

Maximum UV Index Levels in Yangzhou for September

The chart shows the monthly maximum UV Index (UVI) for Yangzhou 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 Yangzhou typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec679101112121210975
Data source: Yangzhou 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 Yangzhou

September in Yangzhou, China, baskes in 274 hours of sunshine, offering a delightful transition from the summer's peak brightness in August, which boasts 310 hours. This month typically signifies a gentle shift, where the sun's warm embrace gradually wanes, especially following the sunniest months of July and August. As the seasons change, September's illumination remains luminous yet balanced, marked by the lingering warmth of late summer while ushering in the crispness of autumn. This trend not only highlights the vibrant hues of fall but also invites both locals and visitors to enjoy the city’s stunning landscapes under a softer, golden sun.

Monthly Sunshine Duration in Yangzhou: September Highlighted

The September sunshine duration represents the total number of hours Yangzhou 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.
JanFebMarAprMayJunJulAugSepOctNovDec158h197h212h240h273h262h298h310h274h233h215h219h
Data source: Yangzhou September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yangzhou During September

As September rolls in, Yangzhou, China experiences a delightful shift in weather, boasting a 63% chance of sunny days. This marks a notable increase from the summer months, where the likelihood of sunshine remains relatively modest, hovering around 28% in July and 33% in August. As autumn unfolds, September stands out as one of the sunniest months of the year, bringing a perfect blend of warmth and clarity. This trend continues into October and November, where the chance of sun remains appealingly high at 39% and 55% respectively. Embrace the golden hues of fall, as September in Yangzhou presents an inviting opportunity to enjoy the outdoors under clear skies.

Percentage of Sunny Days in September in Yangzhou

The chart illustrates the percentage of sunny days in Yangzhou 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 Yangzhou experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%37%23%18%21%18%28%33%63%39%55%63%
Data source: Yangzhou September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yangzhou in September

In September, Yangzhou experiences a delightful 12 hours of daylight, marking a gradual transition from the longer summer days. The daylight hours begin to taper off after the vibrant summer months of June, July, and August, which enjoy a consistent 13 hours of sunshine. As autumn approaches, the daylight duration shifts lower, reflecting nature's rhythm; however, September still offers a generous amount of light, providing ample opportunity for outdoor activities. This month serves as a gentle reminder of the imminent change, as the days continue to shorten into October, which will see a further reduction to 11 hours. The ebb and flow of daylight in Yangzhou not only accentuate the beauty of the changing seasons but also highlight the city's embrace of the natural cycles that define its climate.

Average Daylight Hours in Yangzhou for September

The chart illustrates the variation in daylight duration in Yangzhou 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 36m13h 58m13h 47m13h 9m12h 18m11h 25m10h 40m10h 17m
Data source: Yangzhou daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Yangzhou

As September settles over Yangzhou, a gentle breeze graces the landscape with an average wind speed of 1.7 m/s (4 mph), a slight dip from the summer's more robust gusts. This transitional month reflects a subtle shift in the region's climate, where the winds begin to lose their summer vigor, moving closer to the calmness found in the preceding months of late spring and early summer. Interestingly, September’s wind speed aligns with January and November, suggesting a consistent air movement typical of early autumn. As the days grow shorter and cooler, this soft breeze serves as a reminder of the approaching seasonal change, inviting both residents and visitors to enjoy outdoor pursuits against a backdrop of evolving colors in nature.

Average September Wind Speed in Yangzhou

The chart displays monthly wind speed patterns in Yangzhou, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.71.81.81.81.52.01.51.7 m/s2.31.91.7
Data source: Yangzhou September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Yangzhou Compares to Other Months

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

September weather is characterized by warm temperatures, with daily averages around 25°C (77°F) and highs reaching up to 35°C (96°F). The month experiences significant rainfall, totaling 121 mm (4.8 in) over 10 days, and humidity levels are relatively high at 73%. In contrast, January sees much cooler conditions, with an average temperature of 5°C (42°F) and lows dipping to -6°C (22°F). The precipitation in January is less, at 65 mm (2.6 in) over 8 days, and humidity is slightly lower at 69%. This stark difference highlights the transition from the warmth and moisture of early autumn in September to the chill and dryness typical of winter. For more detailed information about January weather, please visit Yangzhou weather in January.

September and February present contrasting weather conditions, highlighting the transition between late summer and winter. In September, temperatures range from a mild 16°C (61°F) to a scorching 35°C (96°F), with an average of 25°C (77°F), accompanied by considerable rainfall of 121 mm (4.8 in) over about 10 days. The humidity remains high at 73%, creating a warm and often muggy atmosphere. In contrast, February experiences much cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 25°C (78°F), averaging only 7°C (45°F). Precipitation is less frequent, totaling 80 mm (3.2 in) over 12 days, while maintaining the same humidity level of 73%. For more details on February weather, check out Yangzhou weather in February.

In September, the weather is noticeably warmer, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 35°C (96°F) and an average of 25°C (77°F). It experiences a fair amount of rain, with 121 mm (4.8 in) falling over approximately 10 days, leading to a humidity level of 73%. In contrast, March presents a cooler climate, with temperatures varying from a low of 4°C (39°F) to a high of 29°C (85°F) and an average of 13°C (55°F). This month also tends to be wetter, as it receives 169 mm (6.7 in) of precipitation over 16 days, resulting in a higher humidity of 82%. For more detailed insights into the weather characteristics of March, you can explore Yangzhou weather in March.

September and April exhibit distinct weather patterns. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 35°C (96°F), with an average of 25°C (77°F). The month experiences about 121 mm (4.8 in) of rainfall over 10 days, coupled with a humidity level of 73%. In contrast, April sees cooler temperatures, with a low of 6°C (43°F) and a high reaching 32°C (90°F), averaging 17°C (64°F). Precipitation is heavier in April, totaling 161 mm (6.3 in) across 14 days, and humidity peaks at 86%. For more detailed information, visit Yangzhou weather in April.

In comparing the weather between September and May, September generally boasts warmer temperatures with an average of 25°C (77°F) and maximums reaching up to 35°C (96°F), while May has cooler averages of 22°C (72°F) and maximums of 34°C (94°F). However, May experiences higher humidity at 86% compared to September's 73%, making it feel more sultry. Precipitation levels are also notable, with September receiving 121 mm (4.8 in) over 10 days, while May sees more rainfall at 188 mm (7.4 in) through 16 days. For a more detailed overview, consider checking Yangzhou weather in May.

In comparing the weather between September and June, we find that both months share a similar average temperature of around 25°C (77°F), yet they differ significantly in other aspects. September typically experiences milder temperatures with a minimum of 16°C (61°F) and a maximum of 35°C (96°F), while June starts at a slightly higher minimum of 18°C (64°F) and peaks at 36°C (96°F). Rainfall is another notable contrast; September sees 121 mm (4.8 in) of precipitation over about 10 days, whereas June is considerably wetter, receiving 316 mm (12.4 in) across 20 days. Additionally, June has a higher humidity level at 86%, compared to September's 73%. For a detailed look at climate specifics, you can check Yangzhou weather in June.

In comparing the weather of September and July, September offers a milder temperature range with a minimum of 16°C (61°F) and a maximum of 35°C (96°F), averaging around 25°C (77°F). In contrast, July tends to be warmer, featuring a minimum of 21°C (70°F) and peaking at 38°C (100°F), with an average temperature of 28°C (83°F). Precipitation levels also differ significantly, as September experiences 121 mm (4.8 in) of rain over 10 days, whereas July sees much heavier rainfall at 275 mm (10.8 in) over 18 days. Additionally, humidity is notably higher in July at 90%, compared to September's 73%. For more detailed weather insights, check Yangzhou weather in July.

In comparing the weather between August and September, September shows a noticeable cooling trend, with average temperatures dropping from 29°C (84°F) in August to 25°C (77°F). The maximum temperature also decreases from 37°C (99°F) in August to 35°C (96°F). While September experiences less precipitation overall at 121 mm (4.8 in) compared to August's 170 mm (6.7 in), it still sees rain on 10 days versus 15 days in August, indicating a continuation of humid conditions. Humidity remains high in both months, though it slightly lessens in September at 73%, compared to August's 86%. For a detailed look at August weather, you can visit Yangzhou weather in August.

September and October offer contrasting weather conditions. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 35°C (96°F), with an average of 25°C (77°F). This month experiences significant rainfall, totaling 121 mm (4.8 in) across about 10 days, all under a humidity level of 73%. In contrast, October sees cooler temperatures, with a minimum of 8°C (46°F), an average of 18°C (65°F), and similarly high maximums reaching 35°C (95°F). Precipitation drops to 36 mm (1.4 in) over just 7 days, yet humidity remains steady at 73%. For more detailed weather insights, check Yangzhou weather in October.

September and November present quite a contrast in weather conditions. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 35°C (96°F), with an average of 25°C (77°F). This month is marked by significant humidity at 73% and higher precipitation, totaling 121 mm (4.8 in) over about 10 days. In contrast, November brings a cooler climate, with temperatures dropping to a minimum of 3°C (37°F) and averaging around 13°C (56°F), while maxing out at 27°C (81°F). Precipitation is also much lower in November, at 47 mm (1.9 in) across 8 days, and the humidity rises slightly to 80%. For a detailed look at November weather, you can visit Yangzhou weather in November.

September and December present stark contrasts in weather. In September, temperatures range from a warm minimum of 16°C (61°F) to a scorching maximum of 35°C (96°F), with an average of 25°C (77°F). The month is characterized by relatively high humidity at 73% and a fair amount of rainfall, totaling 121 mm (4.8 in) over approximately 10 days. Conversely, December brings a much cooler climate, with temperatures dipping to a minimum of -4°C (26°F) and averaging just 7°C (45°F), while the maximum reaches 22°C (71°F). Despite the lower rainfall of 47 mm (1.9 in) spread over 8 days, humidity rises slightly to 79%. For further insights into December’s weather patterns, you can visit Yangzhou weather in December.

Compare Yangzhou's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Yangzhou

As September unfolds in Yangzhou, it marks a transition from the sweltering summer to the more temperate autumn, bringing a unique blend of warmth and humidity. With average temperatures maintaining a pleasant balance, and occasional rainfall that contributes to the region's lush landscape, this month often feels more comfortable compared to the peak heat of July and August. The 73% humidity adds a touch of moisture to the air, while the 121 mm of precipitation over ten days helps to refresh the atmosphere. This combination makes September an ideal time to explore the beauty of Yangzhou, setting it apart from the drier and hotter months. For more detailed insights, visit Yangzhou Climate.