September Weather in Yangpu, China

Last updated: August 21, 2025

In September, Yangpu experiences a dynamic climate characterized by a maximum temperature of 35°C (94°F) and an average of 25°C (78°F). The month is notable for its humidity levels averaging around 81%, contributing to a muggy atmosphere. As the region transitions into autumn, residents can expect about 177 mm (7.0 in) of rainfall spread over 13 days, making it one of the wetter months of the year. This blend of warmth and moisture creates a distinctive backdrop for outdoor activities, though precautions should be taken to stay cool and dry.

September Temperature in Yangpu

In September, Yangpu, China transitions from the sweltering heat of summer to the more temperate autumn climate. With minimum temperatures averaging around 17°C (63°F) and daytime highs reaching 35°C (94°F), the month offers a pleasant blend of warmth and mildness, making it one of the more enjoyable times of the year. The average temperature of 25°C (78°F) reflects a gradual cooling trend, signaling an end to the intense summer heat experienced in July and August. As the month progresses, these moderate temperatures create ideal conditions for outdoor activities, allowing residents and visitors alike to embrace the vibrant atmosphere of the changing season.

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

The chart illustrates September temperature patterns in Yangpu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yangpu, 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).
JanFebMarAprMayJunJulAugSepOctNovDec434553617076838578685947
Data source: Temperature data for Yangpu 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 Yangpu

September in Yangpu, China, sees a notable shift in precipitation, with 177 mm (7.0 in) of rain spread over 13 days. This month marks a transition from the heavy rains of summer, particularly July's peak of 250 mm (9.8 in), towards the drier autumn months. While September's rainfall is substantial, it is lighter than both July and August, which saw 250 mm and 167 mm respectively. The relatively consistent number of rainy days compared to the previous months suggests a steady, albeit less intense, rainfall pattern, providing a balance that supports the region's lush landscapes while paving the way for drier days ahead.

September Precipitation Trends in Yangpu

The chart displays monthly precipitation patterns in Yangpu, 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 Yangpu, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec55608372117201250167177695150
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yangpu

September in Yangpu, China, marks a noticeable shift in humidity levels. After the peak of the sweltering summer months, where July and August saw humidity soar to 93% and 91% respectively, September usher in a welcome dip to 81%. This decrease not only alleviates the oppressiveness of the preceding heat but also sets a tone for the cooler autumn months ahead. Following September, humidity levels typically continue to decrease slightly, with October and November hovering around 80% and 82%, signaling a gradual transition towards drier, more comfortable weather. The trend illustrates the seasonal rhythm of Yangpu, where summer's humidity gives way to a refreshing fall, inviting residents and visitors alike to enjoy the changing climate.

September Average Humidity in Yangpu

This chart illustrates the average monthly humidity levels in Yangpu, 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 Yangpu is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%73%81%87%87%89%93%91%81%80%82%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yangpu

In September, Yangpu, China, experiences a notable UV Index of 11, categorizing the exposure as extreme with a burn time of just 10 minutes. This trend marks a continuation of the high UV levels seen throughout the summer months, with July and August also recording indices of 12 and 11, respectively. The peak summer sun has transitioned into early autumn, yet the intensity remains significant, encouraging residents and visitors to prioritize sun protection measures. As the year progresses towards cooler months, one can only expect a gradual decrease in UV levels, making September a crucial time for awareness and caution. For more detailed insights into UV levels year-round, visit Yangpu UV Index.

Maximum UV Index Levels in Yangpu for September

The chart shows the monthly maximum UV Index (UVI) for Yangpu 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 Yangpu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec568101011121111864
Data source: Yangpu 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 Yangpu

In September, Yangpu, China, enjoys a pleasant 260 hours of sunshine, marking a slight dip from the sunny heights of August but still reflecting the vibrant trend of summer’s generous light. As the year progresses, the sunshine hours typically peak in the summer months, with a remarkable 301 hours in July and 318 hours in August. As September arrives, it ushers in the early signs of autumn, yet remains bright and inviting compared to the cooler, cloudier months that follow. The gradual decline in sunlight hours continues into October, setting a rhythm that showcases the region's seasonal shifts, where each month presents a unique blend of warmth and illumination, creating an ever-changing tapestry of light throughout the year.

Monthly Sunshine Duration in Yangpu: September Highlighted

The September sunshine duration represents the total number of hours Yangpu 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.
JanFebMarAprMayJunJulAugSepOctNovDec157h211h244h267h290h274h301h318h260h245h224h214h
Data source: Yangpu September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yangpu During September

September in Yangpu, China, enjoys a 44% chance of sunshine, marking a slight uptick from the summer months. As the summer heat begins to wane, this month transitions from the lower sun probabilities of July and June, which plunge to 17% and 23%, respectively. While not the sunniest month of the year, September offers a welcome return to clearer skies, presenting an ideal time for outdoor activities before the cooler autumn months set in. This trend toward brighter days reinforces the notion that Yangpu begins to embrace a balance of sunshine, making it a pleasant transition month as the city edges towards the vibrant landscapes of fall.

Percentage of Sunny Days in September in Yangpu

The chart illustrates the percentage of sunny days in Yangpu 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 Yangpu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%43%29%33%29%23%17%34%45%43%57%64%
Data source: Yangpu September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yangpu in September

As September arrives in Yangpu, China, daylight begins its gentle descent from the peak of summer. With 12 hours of sunlight, this month marks a transition from the longer days of June and July, which basked in 14 hours of daylight. Following the warmth of summer, September maintains a comfortable brightness, slightly tapering off to 13 hours in August before settling into a more moderate rhythm. This gradual shift reflects nature's cyclical dance, preparing for October's shorter days ahead. As the leaves start to change and the air cools, the balance of light continues to weave through the seasons, inviting residents to relish the lingering warmth of early autumn.

Average Daylight Hours in Yangpu for September

The chart illustrates the variation in daylight duration in Yangpu throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 21m11h 4m11h 59m12h 55m13h 43m14h 7m13h 55m13h 13m12h 19m11h 23m10h 34m10h 9m
Data source: Yangpu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Yangpu

As autumn arrives in Yangpu, China, the September wind brings a gentle breeze with an average speed of 3.6 m/s (8 mph), slightly up from the summer lull of 3.1 m/s in August. This subtle increase marks a transition towards the more consistent winds seen earlier in the year, notably in January, February, and May, where speeds stabilize around 3.7 m/s. Interestingly, July stands out as the windiest month, with a peak of 5.1 m/s (11 mph), suggesting that summer can still deliver a refreshing gust. As we move into October, the winds pick up slightly again to 3.8 m/s, hinting that the autumn season favors a gentle yet invigorating flow, perfectly suited for outdoor activities in the mild, crisp air.

Average September Wind Speed in Yangpu

The chart displays monthly wind speed patterns in Yangpu, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.73.73.73.63.73.35.13.13.6 m/s3.83.53.1
Data source: Yangpu September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Yangpu Compares to Other Months

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

September and January showcase distinct weather patterns. In September, temperatures range from a mild 17°C (63°F) at night to a warm 35°C (94°F) during the day, accompanied by significant rainfall totaling 177 mm (7.0 in) over about 13 days. The humidity is high at 81%, creating a tropical feel. In contrast, January offers a stark shift with much cooler temperatures, where nighttime lows can plunge to -8°C (19°F) and daytime averages reach only 6°C (44°F), peaking at 22°C (71°F). Additionally, precipitation is minimal, with only 55 mm (2.2 in) recorded over 6 days and a lower humidity level at 70%. For more insights on January weather, check out Yangpu weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 35°C (94°F), with an average of 25°C (78°F), making it a warm and humid month with a high precipitation level of 177 mm (7.0 in) over 13 rainy days. In stark contrast, February experiences much cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 24°C (76°F), averaging around 7°C (45°F). February also has significantly lower precipitation at 60 mm (2.4 in) and fewer rainy days—only 8—accompanied by slightly lower humidity of 73%. For more details, you can refer to Yangpu weather in February.

In September, the weather is significantly warmer, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 35°C (94°F), while March experiences much cooler temperatures, with a minimum of 2°C (37°F) and an average max of 26°C (79°F). September is characterized by high precipitation, receiving 177 mm (7.0 in) over 13 days, compared to March's 83 mm (3.3 in) spread over 12 days. Interestingly, both months maintain the same humidity level of 81%, creating a muggy feeling in September and a cooler, crisp sensation in March. For more detailed insights on March weather, you can visit Yangpu weather in March.

When comparing the weather in September and April, it's clear that September is significantly warmer, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 35°C (94°F). In contrast, April features cooler temperatures, with minimums around 5°C (42°F) and maximums peaking at 31°C (87°F). September also sees more rainfall, receiving about 177 mm (7.0 in) over approximately 13 days, while April has considerably less precipitation, with just 72 mm (2.8 in) spread across 9 days. Despite this, April's humidity remains high at 87%, slightly surpassing September's average of 81%. For a detailed look at April's weather, you can check out Yangpu weather in April.

September and May present distinct weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 35°C (94°F), with an average temperature of 25°C (78°F). This month also sees significant precipitation, totaling 177 mm (7.0 in) over about 13 days, coupled with a humidity level of 81%. In contrast, May offers cooler temperatures with a minimum of 12°C (53°F), an average of 21°C (71°F), and a maximum of 34°C (94°F). The rainfall is lighter in May, amounting to 117 mm (4.6 in) spread over 10 days, though it has slightly higher humidity at 87%. For more details, check out Yangpu weather in May.

September and June display similar average temperatures, with September having a minimum of 17°C and June a slightly higher minimum of 18°C. However, both months can reach highs near 35-36°C, with June slightly edging out with a maximum of 36°C. When it comes to precipitation, June experiences more rain at 201 mm compared to September's 177 mm, and it's also rainy for more days in June, with 15 rainy days compared to 13 in September. Furthermore, humidity levels are noticeably higher in June at 89% compared to September's 81%. For more details, you can check Yangpu weather in June.

September experiences slightly cooler temperatures compared to July, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 35°C (94°F), while July sees higher averages between 20°C (69°F) and 39°C (102°F). Moreover, September usually has more rainfall, with 177 mm (7.0 in) of precipitation over 13 days, compared to July's 250 mm (9.8 in) over 16 days. The humidity is also notably high in both months, peaking at 81% in September and reaching 93% in July. For a more detailed look at July weather patterns, visit Yangpu weather in July.

In comparing the weather between September and August, it's clear that September offers a slight drop in temperature, with minimums around 17°C (63°F) and a maximum of 35°C (94°F), compared to August's warmer minimum of 20°C (69°F) and maximum of 38°C (100°F). While both months experience considerable rainfall, September sees approximately 177 mm (7.0 in) over 13 days, slightly more than August's 167 mm (6.6 in) across 15 days. Additionally, humidity remains relatively high in both months, but it's slightly lower in September at 81% compared to August's 91%. For more details on the weather in August, visit Yangpu weather in August.

In comparing the weather between September and October, a noticeable shift occurs as temperatures begin to cool down. September boasts warmer conditions, with average temperatures around 25°C (78°F) and highs reaching up to 35°C (94°F). In contrast, October sees a decline in temperature, with averages dropping to 20°C (68°F) and maximums of 31°C (89°F). Additionally, September is significantly wetter, experiencing 177 mm (7.0 in) of rainfall over 13 days, while October enjoys a drier climate with only 69 mm (2.7 in) of precipitation spread over 7 days. Despite the drop in temperatures and rainfall, humidity remains relatively stable at 80%. For more detailed insights on the month, you can refer to Yangpu weather in October.

In September, temperatures are noticeably warmer, ranging from a minimum of 17°C (63°F) to a maximum of 35°C (94°F), with an average temperature of 25°C (78°F). This month experiences significant rainfall, with 177 mm (7.0 in) over 13 days, and humidity levels reaching 81%. In contrast, November brings cooler temperatures, with a minimum of 2°C (37°F) and a maximum of 27°C (81°F), and an average of 15°C (59°F). The precipitation drops to 51 mm (2.0 in) over just 7 days, while the humidity remains fairly consistent at 82%. For a closer look at November's climate, you can check out Yangpu weather in November.

September and December exhibit stark contrasts in weather. In September, temperatures range from a milder minimum of 17°C (63°F) to a sweltering maximum of 35°C (94°F), averaging around 25°C (78°F). This month features considerable precipitation, totaling 177 mm (7.0 in) over approximately 13 days, alongside high humidity levels at 81%. In stark comparison, December brings a dramatic drop in temperatures, with a minimum of -5°C (22°F) and a maximum of 20°C (69°F), averaging just 8°C (47°F). Precipitation in December is much lower at 50 mm (2.0 in), spread over 8 days, and the humidity slightly decreases to 77%. For more detailed weather information, you can check Yangpu weather in December.

Compare Yangpu's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Yangpu

As September unfolds in Yangpu, the weather becomes a fascinating blend of warmth and moisture, setting it apart from the peak summer months. The temperatures, while still reaching highs of 35°C, begin to mellow with an average of 25°C, creating a more comfortable atmosphere for outdoor activities. However, the month also sees frequent rainfall, with 177 mm of precipitation across 13 days, contributing to a notable humidity level of 81%. This combination of warmth and moisture not only offers a lush landscape but also invites residents and visitors alike to enjoy the beauty of the transitioning season. For more detailed information, visit Yangpu Climate.