September Weather in Tianchi, China

Last updated: August 21, 2025

September in Tianchi, China, showcases a warm climate characterized by a maximum temperature of 35°C (96°F) and an average of 23°C (74°F), making it an inviting month for visitors. However, the minimum temperature dips to a cool 16°C (62°F), offering a pleasant reprieve during evenings. With precipitation totaling 136 mm (5.3 inches) over 16 days, the month experiences a mix of rain and sunshine, contributing to the region's lush landscapes. High humidity levels, peaking at 92%, create a tropical feel, enhancing the vibrant atmosphere of Tianchi during this transitional season.

September Temperature in Tianchi

In Tianchi, China, the temperatures in September experience a gentle transition as summer transitions into autumn. With minimum temperatures around 16°C (62°F) and averages peaking at 23°C (74°F), the month offers a pleasant climate that invites outdoor activities. Though the maximum temperature can reach up to 35°C (96°F), it’s notably cooler compared to the blistering summer months of July and August. As the days grow shorter and cooler, September becomes a delightful time for exploration, making it an ideal month to enjoy the stunning landscapes of this captivating area.

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

The chart illustrates September temperature patterns in Tianchi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tianchi, 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).
JanFebMarAprMayJunJulAugSepOctNovDec465059667377818374645648
Data source: Temperature data for Tianchi 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 Tianchi

September marks a notable transition in Tianchi, China, as the region experiences a significant 136 mm (5.3 in) of precipitation over 16 days. This month sees a dip in rainfall compared to the torrential downpours of July, which recorded a staggering 284 mm (11.2 in), yet it remains a substantial contributor to the annual total. The precipitation in September reflects a steady pattern, following a summer of high humidity and intense rainfall, while also foreshadowing the dryer autumn months ahead. This gradual decrease is evident when compared to August's 188 mm, hinting at the shifting seasons and the retreat of monsoonal activity. Overall, September's weather encapsulates the lingering warmth of summer while setting the stage for the transition to cooler, crisper days.

September Precipitation Trends in Tianchi

The chart displays monthly precipitation patterns in Tianchi, 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 Tianchi, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1719398199133285188136802329
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tianchi

In September, humidity in Tianchi, China, reaches a notable 92%, mirroring the high levels experienced in August and continuing into October. This consistent moisture reflects a trend where late summer and early autumn months maintain elevated humidity, contrasting with the slightly drier conditions of spring, where levels dip to around 85% in April. The relatively stable humidity throughout the year, with peaks in the summer months, creates a unique microclimate that influences both local flora and lifestyle, making Tianchi a place of lush beauty and a rich, vibrant atmosphere.

September Average Humidity in Tianchi

This chart illustrates the average monthly humidity levels in Tianchi, 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 Tianchi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%90%86%87%88%89%92%92%92%92%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tianchi

In September, Tianchi, China experiences a very high UV Index of 10, similar to the previous month, indicating that outdoor enthusiasts should remain vigilant. With a burn time of just 15 minutes, it's essential to take precautions against overexposure to sunlight. This trend of heightened UV levels carries over from the peak summer months, where extreme values topped at 12 in July. As autumn approaches, while the UV Index drops slightly, it still remains critical to prioritize skin safety. For more details on how to protect yourself from UV rays, visit Tianchi UV Index.

Maximum UV Index Levels in Tianchi for September

The chart shows the monthly maximum UV Index (UVI) for Tianchi 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 Tianchi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121010864
Data source: Tianchi 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 Tianchi

As September rolls in, Tianchi, China experiences a delightful shift in sunshine, boasting 237 hours of radiant daylight. This marks a slight decline from the sun-drenched days of August, which enjoyed an impressive 308 hours. Interestingly, the trend for the year shows a steady increase in sunshine hours as the seasons transition from January's humble 161 hours to the peak summer months—July and August—when sunlight reaches its zenith. While September's hours may drop, they still significantly surpass the earlier months, showcasing a vibrant blend of warmth and light before the autumn chill sets in. This delicate balance of sunlight reflects the enchanting seasonal tapestry that makes Tianchi a unique destination.

Monthly Sunshine Duration in Tianchi: September Highlighted

The September sunshine duration represents the total number of hours Tianchi 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.
JanFebMarAprMayJunJulAugSepOctNovDec161h197h215h252h274h277h292h308h237h176h183h175h
Data source: Tianchi September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tianchi During September

In September, the ** likelihood of sunny weather** in Tianchi, China, stands at 29%, making it a modestly favorable time for those seeking sunshine. This percentage shows a slight increase from the summer months of July and August, where the chances hover at 28% and 21%, respectively. As the year progresses from the sun-drenched days of June with just a 12% likelihood, September offers a breath of fresh air as the region transitions into autumn. However, this chance still falls short compared to the sunnier months in the earlier part of the year, particularly January with 39%. Overall, while September may not be the sunniest month, it certainly presents a hopeful chance to bask in the sun before the cloudier days of autumn set in.

Percentage of Sunny Days in September in Tianchi

The chart illustrates the percentage of sunny days in Tianchi 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 Tianchi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%33%26%15%15%12%28%21%29%11%24%31%
Data source: Tianchi September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tianchi in September

In Tianchi, China, September marks the transition into autumn, showcasing a gradual decrease in daylight duration. After basking in the longest days of summer, which peaked at 14 hours in June, the sunlight begins to retreat, landing at 12 hours this month. This signals a shift from the vibrant energy of summer, as September offers a balance of light reminiscent of spring months like April, which also has 12 hours of daylight. As daylight dwindles, the rhythm of nature prepares for the cooler months ahead, making way for the reflective beauty of the changing seasons.

Average Daylight Hours in Tianchi for September

The chart illustrates the variation in daylight duration in Tianchi 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: Tianchi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Tianchi

As autumn begins to whisper through the valleys of Tianchi, September experiences a gentle breeze with an average wind speed of 2.4 m/s (5 mph). This marks a slight uptick from the summer months, where July recorded the calmest winds at only 1.8 m/s (4 mph). In the transition from sweltering summer to crisp fall, September's winds offer a refreshing change, aligning closely with the consistent 2.3 m/s (5 mph) that characterize both August and October. Overall, the data reveals a subtle rhythm in wind patterns throughout the year, highlighting September as a time when nature begins to prepare for the cooler months ahead, inviting both visitors and locals to enjoy the serene landscapes of this beautiful region.

Average September Wind Speed in Tianchi

The chart displays monthly wind speed patterns in Tianchi, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.22.32.52.42.32.11.82.32.4 m/s2.32.02.0
Data source: Tianchi September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Tianchi Compares to Other Months

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

September and January present starkly contrasting weather conditions. In September, temperatures range from a minimum of 16°C (62°F) to a scorching maximum of 35°C (96°F), with an average of 23°C (74°F). The month is characterized by significant rainfall, totaling 136 mm (5.3 in) over approximately 16 days, alongside a high humidity level of 92%. In contrast, January experiences much colder temperatures, with a minimum of -2°C (28°F) and a maximum of 16°C (62°F), averaging around 8°C (47°F). This winter month is notably drier, receiving only 17 mm (0.7 in) of precipitation over 5 days, while humidity remains relatively high at 90%. These differences illustrate the shift from the warmth and moisture of late summer to the cold and dryness of mid-winter. For more details on January conditions, visit Tianchi weather in January.

In September, the weather is characterized by much warmer temperatures, with averages reaching 23°C (74°F) and maximums soaring to 35°C (96°F). This month sees significant rainfall, with 136 mm (5.3 in) over 16 days, contributing to high humidity levels of 92%. In contrast, February presents a cooler climate, featuring a minimum temperature of 1°C (34°F) and an average of 10°C (50°F), with maximums around 24°C (76°F). Precipitation is minimal during this month, totaling only 19 mm (0.7 in) across 5 days, yet humidity remains unchanged at 92%. This stark contrast highlights the shift from the warm, humid conditions of September to the cooler, drier climate of February. For more specific details about the weather in February, you can visit Tianchi weather in February.

When comparing the weather in September and March, notable differences emerge. September typically boasts warmer temperatures, ranging from a minimum of 16°C (62°F) to a maximum of 35°C (96°F), with an average of 23°C (74°F). This period also experiences significant rainfall, accumulating 136 mm (5.3 in) across 16 days, paired with high humidity levels of 92%. In contrast, March presents a cooler climate with minimum temperatures of 5°C (42°F) and averages around 15°C (60°F), peaking at 31°C (89°F). Precipitation is considerably lower in March, totaling just 39 mm (1.5 in) over 9 days, and the humidity is slightly reduced at 89%. For more details on March weather in a specific region, check out Tianchi weather in March.

September and April present contrasting weather profiles. In September, temperatures typically range from a minimum of 16°C (62°F) to a maximum of 35°C (96°F), with an average of 23°C (74°F). This month is characterized by high humidity at 92% and considerable rainfall, totaling 136 mm (5.3 in) over 16 days. In contrast, April offers cooler conditions with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 36°C (96°F), averaging 19°C (66°F). April experiences less precipitation, with 81 mm (3.2 in) spread over 12 days and a lower humidity level of 85%. For more detailed insights, you can check Tianchi weather in April.

In September, temperatures range from a minimum of 16°C (62°F) to a maximum of 35°C (96°F), with an average of 23°C (74°F). The month experiences significant precipitation, totaling 136 mm (5.3 in) over 16 days, coupled with high humidity levels of 92%. In contrast, May presents slightly milder conditions, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 39°C (102°F), also averaging around 23°C (73°F). May sees less rainfall at 99 mm (3.9 in) across 14 days and a slightly lower humidity level of 87%. Overall, while both months feature similar average temperatures, September tends to be wetter and more humid, whereas May may experience hotter extremes with less rain. For more detailed information about the weather in May, you can visit Tianchi weather in May.

In comparing the weather of September and June, both months exhibit warm temperatures, but June generally sees slightly higher averages. The minimum temperature in June is marginally warmer at 17°C compared to September's 16°C, with June peaking at a maximum of 37°C compared to September's 35°C. Both months are similar in terms of precipitation, with September receiving 136 mm over 16 days and June slightly less at 132 mm over 13 days. Humidity levels in September are notably higher at 92%, while June's humidity is a bit lower at 88%. For a detailed look at the weather in June, you can check the following link: Tianchi weather in June.

When comparing the weather in September and July, we see notable differences in temperature and precipitation patterns. September tends to have slightly milder temperatures, with a minimum of 16°C (62°F) and an average of 23°C (74°F), compared to July's warmer minimum of 20°C (68°F) and average of 27°C (81°F). July experiences significantly higher maximum temperatures, reaching up to 40°C (104°F), while September peaks at 35°C (96°F). Additionally, July sees more rainfall, with 284 mm (11.2 in) over 21 days, whereas September has 136 mm (5.3 in) across 16 days. The humidity levels are quite similar, with September at 92% and July at 89%. For a more detailed look at July weather, you can refer to Tianchi weather in July.

In comparing September and August, we notice a significant drop in both average temperature and maximum highs. September experiences a minimum temperature of 16°C (62°F) and an average of 23°C (74°F), compared to August's milder minimum of 18°C (65°F) and a much warmer average of 28°C (83°F). Furthermore, the highest temperature recorded in September peaks at 35°C (96°F), although August reaches a sizzling 39°C (103°F). Precipitation levels are also noteworthy, with September receiving 136 mm (5.3 in) over 16 days, while August sees greater rainfall of 188 mm (7.4 in) across 17 days. Interestingly, humidity remains constant at 92% for both months. For more detailed insights about August's climate, you can visit Tianchi weather in August.

In September, the weather is characterized by higher temperatures, with a minimum of 16°C (62°F) and an average of 23°C (74°F), reaching a maximum of 35°C (96°F). This month also experiences significant rainfall, totaling 136 mm (5.3 inches) over 16 days, maintaining a high humidity level of 92%. In contrast, October brings cooler temperatures, with a minimum of 10°C (51°F) and an average of 18°C (64°F), while the maximum temperature drops to 33°C (91°F). The precipitation decreases to 80 mm (3.1 inches), yet the month still experiences rain on 16 days, with humidity remaining steady at 92%. For more details about October weather, check out Tianchi weather in October.

September and November present markedly different weather conditions. In September, temperatures are much warmer, with minimums around 16°C (62°F) and a high of 35°C (96°F), accompanied by significant rainfall of 136 mm (5.3 in) over 16 days. The humidity remains high at 92%, contributing to a muggy atmosphere. Conversely, November ushers in a notable drop in temperatures, with minimums plummeting to 4°C (40°F) and average temperatures around 13°C (56°F). Precipitation also decreases dramatically, with just 23 mm (0.9 in) spread over 7 days. Despite the cooler weather, humidity remains at 92%, creating a crisp yet damp environment. For more detailed insights, check out Tianchi weather in November.

September and December present contrasting weather conditions. In September, temperatures are relatively warm, ranging from a minimum of 16°C (62°F) to a maximum of 35°C (96°F), with an average of 23°C (74°F). The month also sees considerable rainfall, accumulating 136 mm (5.3 in) over 16 days, paired with high humidity levels of 92%. In stark contrast, December experiences much cooler temperatures, with a minimum of 0°C (33°F), an average of 9°C (48°F), and a maximum of only 18°C (64°F). Precipitation drops significantly to 29 mm (1.2 in) over just 7 days, accompanied by slightly lower humidity at 90%. For more detailed insights into the weather in December, visit Tianchi weather in December.

Compare Tianchi's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Tianchi

September in Tianchi brings notable changes as summer wanes, with average temperatures offering a pleasant respite from the intense heat of midsummer. The weather often shifts, showcasing increased humidity and frequent rainfall, contributing to a more lush environment. While the warmth persists, the month is characterized by a blend of sunny days and rainy spells, making it distinct from the drier and hotter months preceding it. This transitional period invites visitors to experience the beauty of Tianchi under varying skies. For a comprehensive overview of the year-round weather patterns, visit Tianchi Climate.