September Weather in Yangzi, China

Last updated: August 21, 2025

September in Yangzi, China features a diverse climate landscape, with temperatures ranging from a maximum of 33°C (91°F) to a minimum of 12°C (54°F), averaging around 23°C (74°F). This transitional month brings 59 mm (2.3 in) of precipitation over 5 days, contributing to a moderate humidity level of 58%. As summer wanes, the weather invites a refreshing balance, making it an ideal time to experience the region's vibrant scenery and cultural richness.

September Temperature in Yangzi

As September rolls in, Yangzi, China, experiences a subtle transition into autumn, showcasing a pleasant temperature profile that entices both locals and visitors. With minimums around 12°C (54°F) and averages peaking at 23°C (74°F), the air becomes crisp yet comfortable. The highs can reach 33°C (91°F), maintaining a hint of summer warmth. This gradual cooling trend marks a significant shift from the sweltering heat of the preceding months, making September an ideal time for outdoor activities and exploration. As the landscape begins to change, the combination of vibrant foliage and moderate temperatures creates an enchanting atmosphere, inviting everyone to relish the beauty of this transitional season.

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

The chart illustrates September temperature patterns in Yangzi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yangzi, 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).
JanFebMarAprMayJunJulAugSepOctNovDec313647586977818173604935
Data source: Temperature data for Yangzi 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 Yangzi

In September, the Yangzi region experiences a significant drop in precipitation after the peak rainy months of July and August. With 59 mm (2.3 in) of rain falling over just 5 days, this marks a notable decrease from the summer's torrential downpours. While the rainfall is more modest compared to the 183 mm seen in August, it still maintains a vital role in sustaining local ecosystems and agricultural activities as the region transitions into autumn. This shift indicates the beginning of a drier season, setting the stage for the subsequent months, where rainfall continues to taper off to just 26 mm (1.0 in) in both October and November. Thus, September serves as a crucial bridge between the heavy summer rains and the much drier months ahead.

September Precipitation Trends in Yangzi

The chart displays monthly precipitation patterns in Yangzi, 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 Yangzi, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec10152137617713218359262611
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Yangzi

As September unfolds in the Yangzi region of China, humidity levels drop to 58%, offering a slight relief from the sweltering summer months. This decline marks a significant shift from the peak of 79% humidity observed in July and 75% in August, providing a more comfortable atmosphere as the region transitions into autumn. Following September, humidity is expected to rise again in October to 67%, indicating a pattern where cooler seasons tend to moderate moisture levels after the intense heat of summer. Overall, the humidity trends reflect the seasonal shifts typical of the Yangzi, creating a dynamic climate that influences daily life and the natural environment.

September Average Humidity in Yangzi

This chart illustrates the average monthly humidity levels in Yangzi, 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 Yangzi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec42%49%57%71%66%66%79%75%58%67%77%62%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yangzi

As September rolls into Yangzi, China, the UV Index remains notably high at 8, placing it in the very high exposure category. This marks a slight decrease from the peak index of 10 observed during the sweltering summer months, but the risk for skin damage remains significant with a burn time of only 15 minutes. This pattern demonstrates a gradual transition from the intense summer sun to the milder conditions of autumn. As the days get shorter and temperatures start to cool down, it's essential to continue taking sun safety precautions. For more on UV levels throughout the year, visit Yangzi UV Index.

Maximum UV Index Levels in Yangzi for September

The chart shows the monthly maximum UV Index (UVI) for Yangzi 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 Yangzi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689910108743
Data source: Yangzi 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 Yangzi

As September arrives in Yangzi, China, the summer's glow begins to mellow, offering a delightful blend of warmth and light with 281 hours of sunshine. This month marks a gentle decline from the sun-kissed peak of 328 hours in May, reflecting the gradual transition into autumn. After a vibrant summer, the sunshine in September remains plentiful, surpassing October's 254 hours and foreshadowing the cozy, sunlit days of early fall. The pattern of gradually decreasing daylight hours signals the shift in seasons, providing a splendid opportunity to enjoy the last remnants of summer's warmth before it ebbs away into cooler months.

Monthly Sunshine Duration in Yangzi: September Highlighted

The September sunshine duration represents the total number of hours Yangzi 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.
JanFebMarAprMayJunJulAugSepOctNovDec199h245h290h291h328h314h323h310h281h254h240h240h
Data source: Yangzi September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yangzi During September

In September, the likelihood of sunny weather in Yangzi, China, stands at 47%, marking a slight uptick from the summer months, where sunshine is less frequent. This improvement suggests a transitional phase as the region inches closer to the more sunlit autumn months, which boast higher probabilities of clear skies, especially notable in November and December with chances rising to 65% and 70%, respectively. While September's chances are comparatively modest, they punctuate a gradual shift from the 30% probability of sun seen in July, hinting at an encouraging trend as summer wanes and autumn approaches.

Percentage of Sunny Days in September in Yangzi

The chart illustrates the percentage of sunny days in Yangzi 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 Yangzi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec64%63%48%45%53%42%30%43%47%47%65%70%
Data source: Yangzi September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yangzi in September

As September arrives in Yangzi, China, daylight begins to wane, offering a gentle transition from the long, sun-drenched days of summer toward the cooler months ahead. With around 12 hours of daylight, September strikes a balance, featuring slightly less sunshine than the peak summer months of June, July, and August, which enjoy a consistent 14 hours. This gradual reduction follows the upward trend from January’s crisp 9 hours and peaks in May with 14 hours. As autumn sets in, the shortening days invite a sense of reflection and readiness for the changing season, blending the remnants of vibrant summer with the subtle promises of the fall ahead.

Average Daylight Hours in Yangzi for September

The chart illustrates the variation in daylight duration in Yangzi throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 55m10h 48m11h 57m13h 8m14h 8m14h 38m14h 23m13h 31m12h 23m11h 12m10h 10m9h 39m
Data source: Yangzi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Yangzi

As September arrives in Yangzi, China, the gentle whispers of the wind underscore the transition into autumn. With an average wind speed of 3.5 m/s (8 mph), the month marks a slight dip from the summer months, which experienced mildly breezy conditions. Throughout the summer, particularly in May and June, winds peaked at 4.0 m/s (9 mph), evoking a vibrant energy, while August brought a lull with a minimum speed of 2.9 m/s (6 mph). As the year progresses towards cooler months, the winds tend to stabilize, with notable increases in speed as winter approaches. This pattern hints at the delicate balance of seasonal shifts, where each month brings its unique character to the dance of breezes across the landscape.

Average September Wind Speed in Yangzi

The chart displays monthly wind speed patterns in Yangzi, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.73.93.63.84.03.93.62.93.5 m/s3.33.93.6
Data source: Yangzi September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Yangzi Compares to Other Months

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

September and January showcase contrasting weather patterns. In September, temperatures range from a mild 12°C (54°F) at night to a warm 33°C (91°F) during the day, with an average of 23°C (74°F). The month experiences moderate precipitation of 59 mm (2.3 in) over about five days, accompanied by a humidity level of 58%. In stark contrast, January presents a frigid environment, with temperatures dropping to a chilling minimum of -16°C (4°F) and a maximum of just 11°C (52°F), averaging around 0°C (31°F). Precipitation is minimal in January, at only 10 mm (0.4 in) over just one day, and the humidity drops to 42%. For more details about the January weather in Yangzi, you can visit Yangzi weather in January.

September and February present stark contrasts in weather conditions. In September, temperatures can range from a mild 12°C (54°F) at night to a warm 33°C (91°F) during the day, with an average of 23°C (74°F). There's also a significant amount of precipitation, with around 59 mm (2.3 in) over approximately 5 days, contributing to a humidity level of 58%. In contrast, February is characterized by much colder temperatures, with nighttime lows dropping to -11°C (13°F) and daytime highs reaching a more moderate 24°C (75°F), averaging just 2°C (36°F). Precipitation is less frequent in February, totaling only 15 mm (0.6 in) over about 2 days, and humidity levels are lower at 49%. For further details, you can check Yangzi weather in February.

In comparing the weather between September and March, notable differences emerge. September boasts a warm average temperature of 23°C (74°F), with highs reaching up to 33°C (91°F), making it a distinctly warmer month. In contrast, March features a much cooler climate, with an average temperature of only 9°C (48°F) and a minimum dropping to -4°C (24°F). While September experiences more precipitation at 59 mm (2.3 in) over 5 days, March is relatively dry with just 21 mm (0.8 in) of rain over 4 days. Humidity levels are quite similar, with September at 58% and March at 57%. For a more detailed look at March weather, you can visit Yangzi weather in March.

In comparing the weather during September and April, September tends to be warmer with average temperatures around 23°C (74°F) and maximum highs reaching up to 33°C (91°F). In contrast, April experiences much cooler conditions, with average temperatures at 14°C (58°F) and minimum lows dipping to 3°C (37°F). While September sees more precipitation at 59 mm (2.3 in) spread over 5 days, April has slightly less rain at 37 mm (1.5 in) over 6 days, though the humidity is notably higher in April at 71% compared to September's 58%. For more detailed insights on April weather, you can check Yangzi weather in April.

In September, the weather features mild temperatures, ranging from a minimum of 12°C (54°F) to a maximum of 33°C (91°F), with an average of 23°C (74°F). This month experiences around 59 mm (2.3 in) of precipitation over approximately 5 days and maintains a humidity level of 58%. In contrast, May offers slightly cooler conditions, with temperatures varying from a minimum of 7°C (45°F) to a hotter maximum of 37°C (98°F) and an average of 21°C (69°F). Precipitation is slightly higher at 61 mm (2.4 in) over about 6 days, accompanied by increased humidity at 65%. The differences in temperature and humidity reflect the transition from spring to late summer. For more details on May weather, check Yangzi weather in May.

In comparing the weather between September and June, we see notable differences in temperature and precipitation patterns. September generally boasts milder temperatures, with a minimum of 12°C (54°F) and a maximum of 33°C (91°F), while June offers slightly warmer conditions, ranging from a minimum of 15°C (60°F) to a maximum of 36°C (98°F). Additionally, June experiences higher humidity at 66%, compared to September's 58%. Precipitation is also more frequent in June, with 77 mm (3.0 in) falling over 8 days, whereas September receives 59 mm (2.3 in) across 5 days. For those interested in a deeper look at June weather specifics, please refer to the link: Yangzi weather in June.

In comparing the weather patterns of September and July, notable differences emerge. September experiences a milder range of temperatures, with minimums around 12°C (54°F) and averages at 23°C (74°F), peaking at 33°C (91°F). In contrast, July is significantly warmer, with minimums of 20°C (68°F), average temperatures of 27°C (82°F), and maximums soaring up to 37°C (98°F). Additionally, July is marked by higher precipitation levels, receiving 132 mm (5.2 in) over 10 days, compared to September's 59 mm (2.3 in) over just 5 days. The humidity is also greater in July, averaging 79%, while September holds a more comfortable 58%. For a more detailed look at July weather in this region, visit Yangzi weather in July.

In comparing the weather of September and August, September offers a cooler climate with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 33°C (91°F), while August presents warmer conditions, with temperatures peaking at 35°C (95°F) and averaging around 27°C (81°F). Notably, September experiences significantly less precipitation at 59 mm (2.3 in) over just 5 days, compared to August's 183 mm (7.2 in) over 14 days. Additionally, the humidity is lower in September at 58%, which contrasts sharply with the higher humidity levels of 75% seen in August. For a closer look at August weather specifics, you can refer to Yangzi weather in August.

September typically enjoys warmer temperatures, with averages around 23°C (74°F) and a maximum reaching up to 33°C (91°F). The month also experiences moderate precipitation totaling 59 mm (2.3 in) over five days, with humidity levels at 58%. In contrast, October marks a noticeable drop in temperature, with average highs around 16°C (60°F) and minimums dipping to 4°C (40°F). Precipitation decreases to 26 mm (1.0 in), also spread across five days, but the humidity rises slightly to 67%. For more detailed information on October weather, visit Yangzi weather in October.

September typically ushers in warmer temperatures, with averages around 23°C (74°F) and maximums reaching up to 33°C (91°F). The month experiences a moderate amount of rainfall, totaling 59 mm over about five days, accompanied by a relative humidity of 58%. In contrast, November brings a significant drop in temperatures, with averages falling to just 9°C (49°F) and minimums dipping as low as -3°C (27°F). This month sees less precipitation, measured at 26 mm over four days, but humidity increases to 77%, contributing to a chillier atmosphere. For more detailed information about weather conditions during this month, you can visit Yangzi weather in November.

September weather is markedly warmer than December, featuring a temperature range from a minimum of 12°C (54°F) to a maximum of 33°C (91°F), with an average of 23°C (74°F). In contrast, December experiences much colder conditions, with temperatures plummeting to a minimum of -12°C (11°F) and peaking at just 14°C (58°F), averaging around 2°C (35°F). While September receives more precipitation at 59 mm (2.3 in) over 5 days, December is comparatively driest, with only 11 mm (0.4 in) of rainfall over just 2 days. Interestingly, despite being colder, December has a slightly higher humidity level at 62% compared to September's 58%. For more details, you can refer to Yangzi weather in December.

Compare Yangzi's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Yangzi

As September rolls in, Yangzi experiences a delightful transition from the sweltering summer heat, offering a refreshing change in weather. With the average temperature falling to a comfortable level and humidity levels at a pleasant 58%, it's the perfect time to explore the region. Although there are a few days of precipitation, the overall environment remains conducive for outdoor activities, making it distinct from the hotter, more humid months of July and August. For more detailed insights about the climate patterns throughout the year, visit Yangzi Climate.