September Weather in Songjiang, China

Last updated: August 21, 2025

September in Songjiang, China is characterized by a dynamic climate as summer transitions to autumn. With maximum temperatures reaching 35°C (95°F) and an average of 25°C (78°F), the warmth often lingers. However, the season also brings periodic relief in the form of rain, with 166 mm (6.5 in) of precipitation over approximately 12 days. Coupled with an average humidity level of 81%, the weather can feel quite muggy at times. Whether you're exploring local sights or enjoying outdoor activities, September's blend of warmth and occasional rain offers a unique experience in Songjiang.

September Temperature in Songjiang

In September, Songjiang, China, enjoys a pleasant transition as summer gives way to autumn. With minimum temperatures around 16°C (60°F) and an average of 25°C (78°F), the weather remains comfortably warm, making it ideal for outdoor activities. The maximum temperature can reach 35°C (95°F), showcasing lingering summer warmth but with a notable dip from the sweltering highs of July and August. As the month progresses, the cooler nights hint at the approaching fall, creating a delightful balance that invites both exploration and relaxation in this vibrant locale.

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).
JanFebMarAprMayJunJulAugSepOctNovDec434554627177848577675846
Data source: Temperature data for Songjiang 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 Songjiang

In September, Songjiang experiences a notable shift in weather patterns, with 166 mm (6.5 in) of precipitation falling over 12 days. This marks a decrease from the intense rainfall of the summer months, yet it's still significant compared to earlier in the year. Following June and July, which saw peak precipitation levels, September serves as a transitional month, where the late-summer heat begins to wane and the region starts to prepare for the drier autumn months ahead. Despite the slightly reduced rainfall, the lingering humidity ensures that the lush greenery characteristic of the area remains vibrant, creating a unique blend of warmth and occasional showers that defines the September climate.

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.
JanFebMarAprMayJunJulAugSepOctNovDec59639079129242253184166594952
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Songjiang

In September, Songjiang, China, experiences a noticeable shift in humidity that reflects the transitional nature of the season. With humidity levels dropping to 81%, September marks a decline from the summer peak seen in July (93%) and August (91%). This decrease suggests a gradual turn towards the drier autumn months, as humidity remains relatively high compared to the earlier months of the year where January starts at 70% and February sees a slight rise to 73%. Overall, September serves as a pivotal point where the lingering warmth of summer begins to yield to the cooler, crisper air of fall, creating a comfortable backdrop for outdoor activities while hinting at the impending change in climate.

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.
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 Songjiang

In September, Songjiang experiences a UV Index of 10, categorizing it as very high with a burn time of just 15 minutes. This reflects a slight decrease from the extreme levels encountered in the previous months of July and August, which hovered at a consistent 11. As summer transitions into autumn, the UV radiation remains significant, emphasizing the need for sun protection during outdoor activities. Following September, the UV Index is expected to drop further in October, where it declines to 7, indicating a shift toward less intense sun exposure. For more detailed information on managing sun safety, check out 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.
JanFebMarAprMayJunJulAugSepOctNovDec56891011111110764
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

September in Songjiang, China, brings a delightful blend of warmth and sunlight, with 251 hours of sunshine lighting up the month. This marks a noticeable decline from the sun-soaked days of August, which recorded a peak of 310 hours. As summer fades, September's sunshine still holds its own as a bright moment before the cooler autumn months settle in. Interestingly, this month lies just below the summer highs, showcasing a trend where the sun’s presence gradually wanes as we transition toward winter, dipping to 237 hours in October and continuing the trend into the later months. With its vibrant sunlight, September remains a cherished time in Songjiang, enhancing the joy of outdoor activities against the backdrop of a stunning seasonal shift.

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.
JanFebMarAprMayJunJulAugSepOctNovDec150h206h234h257h280h261h288h310h251h237h220h211h
Data source: Songjiang September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Songjiang During September

In Songjiang, China, the weather in September offers a refreshing shift, with a 44% chance of sunny days. This marks a notable increase from the sunniest months in the earlier part of the year, particularly with a sharp decline through the summer, where the likelihood of sunshine dips to just 16% in July. September's sunshine potential is akin to that of the preceding couple of months, creating a pleasant backdrop for outdoor activities. As autumn approaches, the trend suggests a gradual rise in sunny days, with November promising even brighter skies at 54%. Thus, if you're planning a visit in September, enjoy the mix of sun and warmth before the cooler months set in.

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.
JanFebMarAprMayJunJulAugSepOctNovDec52%41%27%33%28%21%16%33%44%41%54%66%
Data source: Songjiang September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Songjiang in September

As September unfolds in Songjiang, China, the daylight begins to gradually taper off, offering 12 hours of sunlight—a subtle shift from the longer, brighter days of summer. Following the peak of 14 hours in June, this decrease marks the onset of autumn, as daylight hours transition through 13 hours in July and August. The month serves as a gentle reminder of the changing seasons, leading into October's further reduction to 11 hours. With this pattern, September offers a perfect blend of lingering warmth and the first hints of coolness, creating an inviting atmosphere for outdoor activities before the year starts to wind down.

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.
JanFebMarAprMayJunJulAugSepOctNovDec10h 22m11h 4m11h 59m12h 55m13h 43m14h 7m13h 55m13h 13m12h 19m11h 23m10h 34m10h 9m
Data source: Songjiang daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Songjiang

As the seasons shift in Songjiang, China, September brings a gentle breeze with an average wind speed of 3.1 m/s (7 mph). This slight uptick from the summer’s low of 2.6 m/s (6 mph) in August signals a transition toward more invigorating autumn winds. With the early months of the year maintaining a steady pace around 3.2 m/s, and a peak in July at 4.2 m/s ushering in the summer heat, September falls back into a familiar rhythm, reminiscent of spring’s gentle caress. As the winds begin to cool, they perfectly mirror the changing foliage, inviting residents to embrace the tranquil beauty of this season.

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.
JanFebMarAprMayJunJulAugSepOctNovDec3.23.23.33.33.32.94.22.63.1 m/s3.33.12.8
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.

In September, the weather is warm and humid, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 35°C (95°F) and an average of 25°C (78°F). This month experiences significant rainfall, totaling 166 mm (6.5 in) over approximately 12 days, contributing to the high humidity of 81%. In contrast, January brings a much cooler climate, with temperatures ranging from a chilly -8°C (19°F) as the minimum to a pleasant 23°C (73°F) as the maximum, averaging around 6°C (43°F). Precipitation in January is substantially lower, totaling only 59 mm (2.3 in) over about 7 days, and the humidity is at a cooler 70%. For more information on January weather specifics, you can check Songjiang weather in January.

September and February present starkly different weather conditions. In September, temperatures range from a mild 16°C (60°F) at night to a sweltering 35°C (95°F) during the day, with an average of 25°C (78°F). The month is characterized by high humidity at 81% and significant rainfall, averaging 166 mm (6.5 inches) over about 12 days. In contrast, February is much cooler, with temperatures dipping as low as -5°C (24°F) and peaking at 26°C (79°F), averaging only 7°C (45°F). Precipitation in February is significantly lower at 63 mm (2.5 inches) over approximately 9 days, and humidity is also reduced at 73%. For more details about February weather, you can check Songjiang weather in February.

In September, the weather is significantly warmer, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 35°C (95°F) and an average of 25°C (78°F). The month experiences considerable rainfall, with 166 mm (6.5 in) of precipitation over approximately 12 days, contributing to the high humidity level of 81%. In contrast, March presents a cooler climate, featuring temperatures between 1°C (34°F) and 28°C (83°F), with an average of 12°C (54°F). The precipitation is lower at 90 mm (3.5 in) over about 11 days, yet humidity remains consistent at 81%. For more details on the weather during this transition, check out Songjiang weather in March.

September and April offer contrasting weather experiences. In September, temperatures range from a minimum of 16°C (60°F) to a maximum of 35°C (95°F), with an average of 25°C (78°F), making it considerably warmer. However, this month also brings higher precipitation, with 166 mm (6.5 in) over 12 days and humidity levels at 81%. In contrast, April sees much cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 32°C (89°F), averaging 17°C (62°F). Precipitation is less frequent in April, totaling 79 mm (3.1 in) over just 8 days, though humidity is slightly higher at 87%. For a more detailed look at April's conditions, check out Songjiang weather in April.

In September, the weather tends to be warmer with average temperatures around 25°C (78°F) and maximum highs reaching up to 35°C (95°F). This month also experiences higher humidity levels at 81% and more precipitation, totaling 166 mm (6.5 inches) over approximately 12 days. In contrast, May offers milder conditions, with average temperatures of 22°C (71°F) and maximums peaking at 36°C (97°F). Despite having slightly less total rainfall of 129 mm (5.1 inches) over 10 days, May has a higher humidity level of 87%. For more detailed insights into May weather, check out Songjiang weather in May.

September and June show noticeable differences in weather patterns despite having similar average temperatures. In September, the temperature ranges from a minimum of 16°C (60°F) to a maximum of 35°C (95°F), with an average of 25°C (78°F), and the humidity sits at 81%. Precipitation in September is moderate, totaling 166 mm (6.5 in) over 12 days. Conversely, June experiences slightly warmer temperatures, with a minimum of 16°C (62°F) and a maximum reaching 36°C (98°F), also averaging 25°C (77°F). However, it is marked by higher precipitation, totaling 242 mm (9.5 in) over 15 days and a humidity level of 89%. For more specific details on June weather, you can visit Songjiang weather in June.

When comparing the weather in September and July, we notice distinct differences in temperature and precipitation patterns. September boasts a milder temperature range, with minimums around 16°C (60°F) and maximums reaching up to 35°C (95°F), which is a stark contrast to July's warmer temperatures ranging from a minimum of 21°C (70°F) to a maximum of 39°C (103°F). Additionally, September experiences less rainfall, averaging 166 mm (6.5 in) over 12 days, compared to July's heavier precipitation of 252 mm (9.9 in) over 17 days. The humidity levels also vary, with September at 81% and July higher at 93%, making July feel more sultry. For a more detailed look at July weather, you can visit Songjiang weather in July.

In September, the weather experiences a slight cooling trend compared to August, with minimum temperatures around 16°C (60°F) and maximums reaching 35°C (95°F), compared to August's warmer range of 19°C (67°F) to 38°C (100°F). The average temperature in September is also lower at 25°C (78°F), while August holds a higher average of 29°C (85°F). Additionally, September sees a reduction in overall humidity at 81%, compared to August's higher levels of 91%. Precipitation levels are slightly lower in September at 166 mm (6.5 in) across 12 days, compared to August's 184 mm (7.2 in) over 15 days. For a detailed look at August weather, you can visit Songjiang weather in August.

September experiences warmer temperatures, with a minimum of 16°C (60°F) and an average high reaching up to 35°C (95°F). This month also sees a significant amount of rainfall, accumulating 166 mm (6.5 in) over approximately 12 days of precipitation, coupled with a high humidity level of 81%. In contrast, October brings a noticeable drop in temperature, featuring a minimum of 9°C (48°F) and an average high of 32°C (90°F). Rainfall is much lighter, with only 59 mm (2.3 in) over 6 days, and humidity remains similar at 80%. For a detailed look at the weather conditions specific to October, check out Songjiang weather in October.

September and November present contrasting weather patterns, reflecting the transition from late summer to autumn. In September, temperatures range from a comfortable minimum of 16°C (60°F) to a sizzling maximum of 35°C (95°F), with an average of 25°C (78°F). The month also experiences significant rainfall, totaling 166 mm (6.5 in) over about 12 days, coupled with high humidity at 81%.

Conversely, November marks a notable drop in temperature, with a minimum of 0°C (33°F) and a maximum of 28°C (83°F), averaging around 15°C (58°F). Precipitation decreases sharply to 49 mm (1.9 in), occurring over 7 days, while humidity remains relatively high at 82%. The overall climate in November is much cooler and drier compared to the warmth and humidity of September. For more details, check out Songjiang weather in November.

September and December exhibit stark contrasts in weather conditions. In September, temperatures range from a minimum of 16°C (60°F) to a maximum of 35°C (95°F), with an average of 25°C (78°F). This month is characterized by high humidity at 81% and significant precipitation of 166 mm (6.5 in) over 12 days. In contrast, December experiences much cooler temperatures, where the minimum drops to -6°C (21°F) and the average is only 8°C (47°F), peaking at a maximum of 22°C (71°F). Precipitation decreases substantially to 52 mm (2.0 in) across just 8 days, accompanied by slightly lower humidity at 77%. For more specific insights on December conditions, you can refer to Songjiang weather in December.

Compare Songjiang's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Songjiang

In September, Songjiang transitions into a blend of warmth and humidity, setting it apart from the sweltering peak of summer. With average temperatures hovering around 25°C (78°F), this month offers a more comfortable warmth that encourages outdoor activities. However, it also brings an increase in rainfall, with 12 days of precipitation contributing to a total of 166 mm (6.5 in). The rising humidity levels at 81% can occasionally make the air feel heavy, contrasting with the drier conditions often experienced in the preceding months. Overall, September encapsulates a unique mix of late-summer warmth and the refreshing onset of autumn. For more details about the local climate, visit Songjiang Climate.