September Weather in Longgang, China

Last updated: August 21, 2025

September in Longgang, China, offers a vibrant blend of warmth and humidity, with maximum temperatures peaking at 34°C (93°F) and an average of 22°C (73°F). As summer gives way to fall, the region experiences a noticeable dip in temperatures, with lows reaching 12°C (54°F). This month also brings about 147 mm (5.8 in) of rainfall over approximately 15 days, contributing to a relative humidity level of 75% that envelops the landscape, making it feel even warmer. Visitors and locals alike should prepare for a mix of sunny days and refreshing showers, creating a uniquely dynamic climate perfect for exploring the beauty of Longgang.

September Temperature in Longgang

In September, Longgang experiences a delightful transition from the sweltering summer, with temperatures reflecting a more moderate climate. The minimum temperature settles at 12°C (54°F), while the average rises to a pleasant 22°C (73°F), making it a comfortable time for outdoor activities. As the month progresses, the maximum temperature reaches a balmy 34°C (93°F), hinting at the residual warmth of summer. This pattern showcases a gradual cooling trend compared to the scorching heat of July and August, where temperatures peaked significantly higher. Overall, September stands out as a month of pleasant warmth, offering a beautiful blend of lingering summer heat and the first hints of autumn.

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

The chart illustrates September temperature patterns in Longgang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Longgang, 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).
JanFebMarAprMayJunJulAugSepOctNovDec384151606874808072625241
Data source: Temperature data for Longgang 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 Longgang

In September, Longgang, China, experiences a notable transition in precipitation, with 147 mm (5.8 in) of rain falling over approximately 15 days. This amount marks a decrease from the intense summer months, where July and June saw significant rainfall of 345 mm and 394 mm, respectively. As the region shifts into autumn, the precipitation pattern hints at a gradual reduction, setting the stage for the drier months ahead. Interestingly, while September's rainfall is substantial, it is accompanied by fewer rainy days compared to the preceding peak months, suggesting more concentrated storms. Overall, September represents a delicate balance in Longgang’s climatic rhythm, bridging the lush wetness of summer and the approaching cooler, drier season.

September Precipitation Trends in Longgang

The chart displays monthly precipitation patterns in Longgang, 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 Longgang, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec8495173144206394346234147506070
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Longgang

As summer transitions to autumn in Longgang, China, September brings a welcome respite from the peak humidity levels experienced in the preceding months. With an average humidity of 75%, the air feels notably less oppressive compared to the 90% recorded in July and 88% in August. This decrease marks a significant shift as the city moves beyond the peak summer months, hinting at the gradual cooling trends that will define the coming fall. While humidity remains higher than the early winter months, this slight dip offers a more comfortable atmosphere, making September an ideal time for outdoor activities before cooler breezes set in. As the year progresses, humidity levels will continue to fluctuate, but September stands out as a moment of balance, bridging the sultry summer and the crisp autumn ahead.

September Average Humidity in Longgang

This chart illustrates the average monthly humidity levels in Longgang, 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 Longgang is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%73%82%86%85%85%90%88%75%76%84%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Longgang

As September rolls into Longgang, China, the UV Index continues to reflect a remarkable trend of high sun exposure, though it slightly eases from the intense summer months. With a UV Index of 10, it remains in the very high exposure category, requiring just 15 minutes for potential skin damage. This marks a transition from the peak extreme levels of 12 witnessed during the scorching July and August. The dip indicates a shift in sunlight intensity as the season starts to cool, yet caution is still essential for outdoor activities. Visitors and residents alike should stay informed and take necessary precautions during this time. For more details, check out Longgang UV Index.

Maximum UV Index Levels in Longgang for September

The chart shows the monthly maximum UV Index (UVI) for Longgang 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 Longgang typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec679101112121210865
Data source: Longgang 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 Longgang

In Longgang, China, September ushers in a splendid 250 hours of sunshine, a warm embrace as summer begins to wane. This vibrant month follows a sun-drenched August, which boasts an impressive 303 hours, marking the peak of the year's sunshine. The trend reveals a gradual increase in sunlight from January's 147 hours to the height of summer, before a gentle decline in October with 233 hours. With the seasons changing, September stands out as a beautiful transition, blending the lingering warmth of summer with the promise of autumn, making it an ideal time for exploration and outdoor activities amidst the soothing glow of the sun.

Monthly Sunshine Duration in Longgang: September Highlighted

The September sunshine duration represents the total number of hours Longgang 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.
JanFebMarAprMayJunJulAugSepOctNovDec147h193h209h249h278h254h288h303h250h233h218h210h
Data source: Longgang September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Longgang During September

September in Longgang, China, is marked by a significant increase in sunny days, with a 46% chance of sun gracing the region. As summer transitions into autumn, the likelihood of clear skies rises notably from the peak of the rainy season in July, which sees only a 13% chance of sunshine. This upward trend continues into November, where the odds of sun hover around 45%. Compared to the drier months of October, with a 35% chance, September stands out as a delightful month for outdoor activities. With its favorable weather, September invites locals and visitors alike to bask in the warmth of the sun before the cooler months set in.

Percentage of Sunny Days in September in Longgang

The chart illustrates the percentage of sunny days in Longgang 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 Longgang experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec50%36%23%24%24%18%13%26%46%35%45%65%
Data source: Longgang September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Longgang in September

In September, Longgang, China, enjoys a delightful 12 hours of daylight, marking a gentle transition from the vibrant summer months. As the sun begins to set earlier, this month continues the gradual decline in daylight that follows the peak of 14 hours in June. Following the warmth of June and July, where daylight is plentiful, September offers a balanced blend of sunlit days while hinting at the autumn chill to come. As daylight hours decrease in the coming months, the rhythm of the seasons becomes increasingly evident, inviting a slowdown and a chance to savor the softer tones of nature.

Average Daylight Hours in Longgang for September

The chart illustrates the variation in daylight duration in Longgang throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 25m11h 6m11h 59m12h 54m13h 40m14h 3m13h 51m13h 11m12h 19m11h 24m10h 37m10h 12m
Data source: Longgang daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Longgang

In September, Longgang experiences a gentle breeze with an average wind speed of 1.7 m/s (4 mph), marking a slight uptick from the quieter summer months, where the wind dropped to 1.5 m/s in both June and August. This moderate increase reflects a subtle shift in the weather as the region transitions from the warmth of summer. While the wind speeds remain relatively consistent throughout the year, dipping to lower averages during the hotter months, September's subtle rise hints at the approaching fall season. Overall, the trends reveal a landscape where wind patterns are gentle and steady, embodying the serene atmosphere characteristic of Longgang.

Average September Wind Speed in Longgang

The chart displays monthly wind speed patterns in Longgang, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.91.91.81.81.52.21.51.7 m/s1.91.91.8
Data source: Longgang September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Longgang Compares to Other Months

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

September and January present strikingly contrasting weather conditions. In September, temperatures range from a mild 12°C (54°F) at night to a warm 34°C (93°F) during the day, with an average of 22°C (73°F). This month experiences significant rainfall, with 147 mm (5.8 in) of precipitation over 15 days and humidity levels around 75%. In contrast, January is quite chilly, with minimum temperatures dropping to -17°C (1°F) and an average of just 3°C (38°F), peaking at a mild 21°C (69°F). It also sees less precipitation at 84 mm (3.3 in) over 11 days, combined with a slightly lower humidity of 70%. For those interested in the specific weather patterns during this winter month, you can check Longgang weather in January.

September and February exhibit stark contrasts in weather conditions. In September, temperatures range from a cool 12°C (54°F) at night, to a warm average of 22°C (73°F), peaking at a sweltering 34°C (93°F) during the day. This month also sees significant rainfall, with about 147 mm (5.8 in) of precipitation over 15 days, coupled with a high humidity level of 75%. In contrast, February experiences much colder temperatures, with a minimum of -8°C (18°F), an average of 5°C (41°F), and a maximum of 23°C (74°F). Precipitation decreases to 95 mm (3.7 in) over 13 days, with humidity slightly lower at 73%. These comparisons highlight how September's warmth and moisture differ dramatically from February's chilly and drier conditions. For more detailed insights, you can check Longgang weather in February.

In September, the weather tends to be warmer with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 34°C (93°F), averaging around 22°C (73°F). This month experiences significant rainfall, totaling 147 mm (5.8 in) over about 15 days, and humidity levels are relatively high at 75%. In contrast, March sees a notable drop in temperature, with a minimum of -2°C (29°F) and a pleasant maximum of 28°C (82°F), averaging around 11°C (52°F). Precipitation is slightly higher during this month at 173 mm (6.8 in), occurring over 18 days, and humidity increases to 82%. To learn more about the specific conditions during this time, visit Longgang weather in March.

September and April exhibit distinct weather patterns, reflecting the transition between seasons. In September, temperatures range from a minimum of 12°C (54°F) to a maximum of 34°C (93°F), with an average of 22°C (73°F), indicating a warmer climate. The month experiences significant rainfall, totaling 147 mm (5.8 inches) over about 15 days, while humidity remains high at 75%. In contrast, April sees cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 30°C (87°F), averaging 15°C (60°F). Precipitation is slightly less at 143 mm (5.6 inches) across 13 days, and humidity is notably higher at 86%. This comparison highlights how September feels warmer and wetter compared to the cooler and slightly drier April. For more details on April weather, visit Longgang weather in April.

In comparing the weather between September and May, September generally offers warmer temperatures with an average of 22°C (73°F), compared to May's average of 20°C (69°F). Both months can experience maximum temperatures reaching up to 34°C (93°F), but September typically has a milder minimum temperature of 12°C (54°F) versus May's cooler 8°C (47°F). Precipitation is more pronounced in May, with 206 mm (8.1 in) over 15 days, compared to September's 147 mm (5.8 in) during the same number of days. Furthermore, humidity levels are slightly higher in May at 85% compared to September's 75%. For more detailed information, you can check out Longgang weather in May.

In comparing the weather between September and June, it is evident that both months experience similar maximum temperatures, peaking at 34°C (93°F). However, September generally has a slightly lower average temperature of 22°C (73°F) compared to June's average of 23°C (74°F). Rainfall is a significant factor in the comparison; September receives 147 mm (5.8 in) of precipitation over 15 days, while June is much wetter, with 394 mm (15.5 in) of rain across 18 days. Additionally, humidity levels are higher in June at 85%, compared to 75% in September, contributing to a more oppressive feel during that month. For a detailed look at June weather, visit Longgang weather in June.

In comparing the weather between September and July, it's evident that July is typically warmer, with average temperatures around 26°C (80°F) and maximums reaching up to 37°C (99°F), whereas September offers a moderate average temperature of 22°C (73°F) and peaks at 34°C (93°F). Additionally, July experiences higher humidity at 90% and significantly more rainfall, totaling 345 mm (13.6 in) over about 21 days, compared to September's 147 mm (5.8 in) across 15 rainy days. This contrast highlights July as the more humid and wet month, while September provides a slightly cooler and drier climate. For more detailed information, you can check Longgang weather in July.

In comparing the weather between August and September, September tends to be slightly cooler and less humid. While August sees average temperatures reach up to 27°C (80°F), September's average temperature drops to 22°C (73°F), with maximum temperatures peaking at 34°C (93°F) compared to August's peak of 35°C (96°F). Additionally, September experiences less precipitation, totaling 147 mm (5.8 in) over 15 days, whereas August receives 234 mm (9.2 in) across 17 days. This reduction in precipitation and the lower humidity levels of 75% in September, as opposed to 88% in August, contribute to a more comfortable climate during the transition to fall. For more detailed insights into August weather, you can visit Longgang weather in August.

In September, the weather features warmer temperatures, with a minimum of 12°C (54°F) and an average of 22°C (73°F), reaching highs of 34°C (93°F). This month experiences considerable precipitation, totaling 147 mm (5.8 in) over 15 days, coupled with a humidity level of 75%. In contrast, October sees a significant drop in temperatures, with a minimum of 5°C (41°F) and an average of 17°C (62°F), although it can still reach a high of 33°C (91°F). The rainfall diminishes to 50 mm (2.0 in) across just 8 days, while humidity remains slightly higher at 76%. This transition marks a shift toward cooler, drier weather. For more details, you can refer to Longgang weather in October.

September and November present a stark contrast in weather conditions. In September, temperatures are warmer, ranging from a minimum of 12°C (54°F) to a maximum of 34°C (93°F), with an average temperature of 22°C (73°F). This month experiences higher precipitation, totaling 147 mm (5.8 in) over about 15 days, and the humidity sits at 75%. In contrast, November brings cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 25°C (78°F), resulting in an average of 11°C (53°F). Precipitation decreases significantly to 60 mm (2.3 in) over 11 days, though humidity rises to 84%. For more insights into the weather in November, you can refer to Longgang weather in November.

In September, temperatures are generally warm, with a minimum of 12°C (54°F) and an average of 22°C (73°F), occasionally reaching up to 34°C (93°F). The month is characterized by high humidity at 75% and significant rainfall, averaging 147 mm (5.8 in) over approximately 15 days. In contrast, December brings a much cooler climate, where temperatures drop to a minimum of -7°C (20°F) and an average of just 5°C (42°F), peaking at 19°C (67°F). The precipitation in December is lighter, totaling 70 mm (2.8 in) across about 9 days, with humidity slightly higher at 77%. For more specific details on December weather in Longgang, you can visit Longgang weather in December.

Compare Longgang's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Longgang

As September unfolds in Longgang, it marks a transition from the sweltering summer heat, with maximum temperatures reaching up to 34°C (93°F). This month showcases a delightful average temperature of around 22°C (73°F), offering a pleasant respite as the region begins to cool down. Unlike the drier months, September experiences significant rainfall, with about 147 mm (5.8 in) of precipitation spread over 15 days, contributing to a notable humidity level of 75%. This combination of warmth and moisture not only refreshes the landscape but also sets the stage for the upcoming autumn months. To learn more about how the weather evolves throughout the year, visit Longgang Climate.