September Weather in Songjiang, China

Last updated: August 21, 2025

September in Songjiang, China, presents a delightful transition into autumn, with average temperatures hovering around 14°C (58°F). The month sees maximum highs reaching 28°C (82°F), while minimum lows can dip to a chilly -1°C (30°F). Precipitation is noteworthy, totaling 86 mm (3.4 in) over approximately 10 days, contributing to the high humidity level of 84%. This combination of warm days and cooler nights makes September a refreshing time to experience the beauty of Songjiang's landscape.

September Temperature in Songjiang

In September, Songjiang, China, begins to transition from the warmth of summer to the cooler embrace of autumn. Average temperatures settle at a comfortable 14°C (58°F), with daytime highs reaching up to 28°C (82°F), creating pleasant days perfect for outdoor activities. The nights are refreshingly cool, dipping to a brisk -1°C (30°F). This month marks a notable shift in the climate, as the region moves away from the relentless heat of the preceding summer months, creating an inviting atmosphere for locals and visitors alike to enjoy the stunning natural beauty of the area. As nature prepares for the impending chill of winter, September offers a delightful balance of warmth and coolness, making it a beautiful time to experience Songjiang's vibrant landscape.

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

The chart illustrates September temperature patterns in Songjiang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Songjiang, 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).
JanFebMarAprMayJunJulAugSepOctNovDec71229445563716958432710
Data source: Temperature data for Songjiang generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Songjiang

In September, Songjiang experiences a notable dip in precipitation, accumulating 86 mm (3.4 in) across approximately 10 days of rain. This marks a significant reduction from the torrential downpours of August, which saw 214 mm (8.4 in) over 21 days. As the summer months fade away, the shift to September brings a more moderate climate, indicative of a transition towards autumn. While the rainfall is still considerable, it is accompanied by a decrease in rainfall days, suggesting that when it does rain, it can often be more intense yet less frequent. This trend hints at a gradual yet steady retreat of the monsoon influences, paving the way for the cooler, drier months ahead.

September Precipitation Trends in Songjiang

The chart displays monthly precipitation patterns in Songjiang, 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 Songjiang, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1430385110311512521486564921
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Songjiang

In September, Songjiang experiences a notable shift in humidity, with levels reaching 84%. This figure marks a slight decline from the peak highs of the summer months, where July and August saw humidity levels soar to 87% and 89%, respectively. The transition into fall brings a gradual decrease in moisture, yet September remains notably humid compared to the winter months, where averages drop to the mid-60s. Overall, the humidity pattern throughout the year showcases a trend of higher moisture during the summer, with a gentle tapering off as autumn approaches, providing a balance of warmth and softening air before the cooler seasons set in.

September Average Humidity in Songjiang

This chart illustrates the average monthly humidity levels in Songjiang, 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 Songjiang is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%75%70%65%72%82%87%89%84%83%67%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Songjiang

As summer transitions into autumn, the UV Index in Songjiang, China, begins to decline, yet September still boasts a very high UV Index of 8 with a burn time of just 15 minutes. This marks a slight decrease from the extreme levels of 11 witnessed in July and August, but awareness is still crucial. Throughout this month, residents and visitors should remain vigilant as exposure risks remain notably elevated. Given the patterns observed from January to September, it’s clear that the UV Index peaks during the summer months, emphasizing the importance of sun protection. For more detailed insights on UV exposure in Songjiang, visit Songjiang UV Index.

Maximum UV Index Levels in Songjiang for September

The chart shows the monthly maximum UV Index (UVI) for Songjiang 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 Songjiang typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246891011118632
Data source: Songjiang 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 Songjiang

In Songjiang, China, September marks a gentle transition, with 279 hours of sunshine that reflects the lingering warmth of summer. This month showcases a slight decline from the sun-drenched heights of July, which boasted an impressive 338 hours, but still holds its own compared to the earlier months. Following the vibrant summer months, September’s sunshine is reminiscent of a soft, golden glow, providing a calm reprieve before the cooler embrace of autumn sets in. As the year progresses, sunlight hours steadily decrease, but September serves as a beautiful bridge, allowing residents to bask in the afterglow of warmer seasons while preparing for the crisp days ahead.

Monthly Sunshine Duration in Songjiang: September Highlighted

The September sunshine duration represents the total number of hours Songjiang 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.
JanFebMarAprMayJunJulAugSepOctNovDec194h233h280h282h300h317h338h296h279h260h227h230h
Data source: Songjiang September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Songjiang During September

In September, Songjiang, China sees a 33% chance of sunny weather, reflecting a trend of waning sunshine as summer draws to a close. This figure aligns closely with the preceding months of July and August, both of which also brought limited sunny days. Interestingly, this month's likelihood is a dip from the moderate levels observed in the spring, where April offered a 50% chance of sun. As the region transitions into autumn, the chances of sunshine remain lower, but they bounce back in October to a more promising 56%, hinting at a potential return to brighter days ahead. Overall, September's weather may call for a thoughtful mix of both sunny reflections and cloudy contemplation as the landscape begins to change.

Percentage of Sunny Days in September in Songjiang

The chart illustrates the percentage of sunny days in Songjiang 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 Songjiang experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%47%53%50%39%33%35%34%33%56%43%50%
Data source: Songjiang September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Songjiang in September

In Songjiang, China, the ebb and flow of daylight throughout the year paints a vivid picture of the changing seasons. As summer gives way to fall, September offers a balance with approximately 12 hours of daylight—a slight decline from the sun-soaked months of July and August, which both bask in 14 and 13 hours respectively. This seasonal transition becomes more pronounced as daylight begins to taper off, leading into the shorter days of autumn. The trend reveals a gradual reduction from the year's longest days in June, when sunlight reaches a peak of 15 hours, to the 9 hours that blanket the city in both January and December. September stands as a gentle reminder of the changing rhythm of nature, capturing the essence of early autumn while hinting at the darkness to come.

Average Daylight Hours in Songjiang for September

The chart illustrates the variation in daylight duration in Songjiang throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 25m10h 32m11h 56m13h 23m14h 36m15h 14m14h 55m13h 50m12h 27m11h 1m9h 45m9h 5m
Data source: Songjiang daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Songjiang

As September arrives in Songjiang, China, the calming embrace of the season is reflected in the average wind speed, which gently decreases to 2.1 m/s (5 mph). Following the summer's peak winds, this subtle lull in gusts signifies a natural transition. Interestingly, the trend throughout the year reveals a consistent decline from May's 3.1 m/s to the serene September breezes, with the wind barely whispering through the countryside in July. Although the winds pick up again in October, the gentle September air invites a moment of reflection and tranquility before the brisk autumnal gusts return in November, reminding us of nature's cyclical rhythm.

Average September Wind Speed in Songjiang

The chart displays monthly wind speed patterns in Songjiang, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.54.23.33.23.12.11.52.42.1 m/s2.73.54.0
Data source: Songjiang September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Songjiang Compares to Other Months

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

September and January present stark contrasts in weather conditions. In September, temperatures range from a chilling minimum of -1°C (30°F) to a warm maximum of 28°C (82°F), with an average of 14°C (58°F). This month experiences considerable precipitation, totaling 86 mm (3.4 in) over approximately 10 days, and maintains a high humidity level of 84%. In contrast, January is characterized by much harsher conditions, where temperatures plummet to a minimum of -34°C (-30°F) and an average of -14°C (7°F), barely reaching a maximum of 4°C (39°F). The precipitation is significantly lower at 14 mm (0.5 in), occurring over just 3 days, alongside a humidity level of 78%. For more details, check out Songjiang weather in January.

September and February present strikingly contrasting weather conditions. In September, temperatures range from a chilly -1°C (30°F) at night to a warm 28°C (82°F) during the day, with an average of 14°C (58°F). The month brings about 86 mm (3.4 in) of precipitation over approximately 10 days, accompanied by high humidity levels at 84%. In contrast, February is much colder, with temperatures plunging to a minimum of -29°C (-20°F) and only reaching a maximum of 7°C (45°F), averaging -11°C (12°F). Precipitation is significantly lower at 30 mm (1.2 in) spread over about 7 days, and the humidity is also lower at 75%. For further details, you can check Songjiang weather in February.

September and March present contrasting weather conditions. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 28°C (82°F), with an average of 14°C (58°F). This month also experiences relatively high humidity at 84% and sees about 86 mm (3.4 in) of precipitation over 10 days. In sharp contrast, March features significantly colder temperatures, with a minimum of -22°C (-7°F) and an average of -2°C (30°F), reaching a maximum of 20°C (68°F). The month has less precipitation, totaling only 38 mm (1.5 in) across 8 days, and lower humidity at 70%. For more detailed information on March weather, visit Songjiang weather in March.

When comparing the weather in September and April, notable differences emerge in temperature and humidity. September enjoys a more comfortable average temperature of 14°C (58°F) with highs reaching up to 28°C (82°F), while April's average is cooler at just 6°C (44°F) and can dip to a chilly minimum of -9°C (17°F). The humidity in September is also considerably higher at 84%, compared to April's 65%, contributing to a more humid perception during the fall month. Additionally, September experiences more precipitation, totaling 86 mm (3.4 in) over 10 days, whereas April sees only 51 mm (2.0 in) over the same number of days. For a detailed look at April weather in Songjiang, you can visit Songjiang weather in April.

September and May present contrasting weather patterns despite their similar minimum temperatures. In September, average temperatures reach about 14°C (58°F), with a maximum of 28°C (82°F), while May boasts a slightly lower average of 13°C (55°F) but can peak at a higher 32°C (90°F). Precipitation is more abundant in May, with 103 mm (4.1 in) falling over 14 days compared to September's 86 mm (3.4 in) over 10 days. Additionally, September experiences higher humidity at 84%, whereas May's humidity is more moderate at 72%. To explore more about May's weather, visit Songjiang weather in May.

September and June present distinct weather patterns that reflect the transition from summer to fall. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 28°C (82°F), with an average of 14°C (58°F). The month sees an average humidity of 84% and about 86 mm (3.4 in) of precipitation over approximately 10 days. In contrast, June offers milder conditions, with minimum temperatures starting at 4°C (40°F) and peaking at 30°C (86°F), resulting in an average temperature of 17°C (63°F). However, it experiences higher precipitation levels at 115 mm (4.5 in) across about 16 days and slightly lower humidity at 82%. For more details, check out Songjiang weather in June.

September and July exhibit distinct contrasts in weather patterns. In July, temperatures are notably warmer, ranging from a minimum of 10°C (50°F) to a maximum of 34°C (94°F), with an average temperature of 22°C (71°F). This month also experiences higher precipitation, with 125 mm (4.9 in) falling over 15 days and humidity levels reaching 87%. In contrast, September sees cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 28°C (82°F), averaging 14°C (58°F). Although it has slightly less precipitation at 86 mm (3.4 in) over 10 days, the humidity remains high at 84%. For more details on July weather, check out Songjiang weather in July.

In comparing the weather of September to that of August, a notable shift occurs as temperatures begin to cool. September experiences a broader temperature range with a minimum of -1°C (30°F) and a maximum of 28°C (82°F), resulting in an average of 14°C (58°F). In contrast, August boasts warmer temperatures with a minimum of 4°C (40°F), peaking at 34°C (94°F) and averaging 20°C (69°F). Additionally, September sees a decrease in precipitation, accumulating 86 mm (3.4 in) over 10 days, while August is much wetter, gathering 214 mm (8.4 in) across 21 days. Humidity remains high in both months, with September at 84% and August slightly higher at 89%. For more detailed insights, visit Songjiang weather in August.

September and October present a notable shift in weather conditions. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 28°C (82°F), with an average of 14°C (58°F). This month experiences a higher precipitation level of 86 mm (3.4 in) over 10 days, combined with high humidity at 84%. In contrast, October sees a decrease in average temperatures, with a minimum of -7°C (19°F) and a slightly lower maximum of 27°C (80°F), averaging around 6°C (43°F). Rainfall reduces to 56 mm (2.2 in) over just 8 days, and humidity remains relatively stable at 83%. For more specific information about the conditions during this transition month, refer to Songjiang weather in October.

September's weather is characterized by mild temperatures, with a minimum of -1°C (30°F) and a maximum reaching up to 28°C (82°F). The average temperature sits at a comfortable 14°C (58°F), while the month experiences significant precipitation, totaling 86 mm (3.4 in) over about 10 days at a humidity level of 84%. In contrast, November plunges into much colder conditions, with temperatures ranging from a minimum of -20°C (-4°F) to a maximum of 16°C (60°F) and an average temperature of -3°C (28°F). This month sees less precipitation, totaling 49 mm (1.9 in) over 8 days, and the humidity decreases to 67%. For more specific insights into November weather, check out Songjiang weather in November.

In comparing the weather of September and December, it's evident that a dramatic shift occurs as the year progresses. September boasts a milder temperature range with a minimum of -1°C (30°F) and an average of 14°C (58°F), while daytime highs can reach a comfortable 28°C (82°F). This month experiences considerable precipitation, totaling 86 mm (3.4 in) over about 10 days, and a high humidity level of 84%. On the other hand, December brings much harsher conditions, with temperatures plummeting to a minimum of -30°C (-22°F) and an average of -12°C (11°F); highs only reach 6°C (42°F). The precipitation significantly decreases to 21 mm (0.8 in) across just 5 days, accompanied by lower humidity at 70%. For a closer look at what to expect during this chilling month, you can check Songjiang weather in December.

Compare Songjiang's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Songjiang

As September rolls into Songjiang, the weather becomes notably milder compared to the sweltering summer months. With comfortable daytime temperatures and cooler nights, this transitional period invites outdoor activities under a refreshing sky. However, the month also brings its fair share of rain, adding to the humidity that characterizes this time of year. Unlike the extremes of winter or the heat of summer, September strikes a harmonious balance, making it an ideal month for enjoying the lush landscapes and vibrant seasonal changes. For more insights into what to expect throughout the year, check out Songjiang Climate.