September Weather in Qinghaihu, China

Last updated: August 21, 2025

In September, Qinghaihu, China experiences a mild yet moist climate, with maximum temperatures reaching 19°C (66°F) and an average of 9°C (49°F). The month is characterized by a noticeable chill, as temperatures can dip to a minimum of 2°C (36°F). Rainfall is frequent, with a total of 87 mm (3.4 in) accumulated over 17 days, contributing to a high humidity level of 82%. This combination of cool temperatures and consistent precipitation creates a unique and refreshing atmosphere, ideal for those seeking to explore the region's stunning natural beauty.

September Temperature in Qinghaihu

In September, Qinghaihu transitions from the warm summer months to the onset of autumn, marked by a noticeable drop in temperatures. The minimum temperature settles around 2°C (36°F), while the average creeps up to 9°C (49°F), culminating in a maximum of 19°C (66°F). This shift showcases a cooling trend as the region prepares for winter, in stark contrast to the balmy summer highs. The days are still relatively mild, but the crispness in the air begins to hint at the approaching chill of October. Overall, September serves as a gentle bridge between seasons, inviting visitors to enjoy the serene beauty of Qinghaihu amid its stunning autumnal hues.

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

The chart illustrates September temperature patterns in Qinghaihu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Qinghaihu, 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).
JanFebMarAprMayJunJulAugSepOctNovDec111525323849565549382816
Data source: Temperature data for Qinghaihu 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 Qinghaihu

September brings a notable transition in Qinghaihu, China, as the region experiences a significant increase in rainfall, accumulating 87 mm (3.4 in) over 17 days. This marks a decrease from the lush heights of August, yet it remains one of the wetter months of the year. Following a progressive rise in precipitation from the early months, with just 5 mm in January to a peak of 139 mm in August, September's rainfall supports the tail end of a robust summer season, hinting at the onset of autumn's drier conditions ahead. This pattern showcases a clear seasonal rhythm, with each month building up to the peak of summer rains before gradually tapering off, setting the stage for the cooler, drier months to follow.

September Precipitation Trends in Qinghaihu

The chart displays monthly precipitation patterns in Qinghaihu, 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 Qinghaihu, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec66143548921041398749169
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Qinghaihu

In September, humidity levels in Qinghaihu, China remain notably high at 82%, mirroring the climatic trend observed in August. This marks the continuation of a generally humid season that peaks during the summer months, with July and August also recording similar humidity levels. As the year progresses into October, a subtle rise to 85% suggests that the early autumn retains a hint of summer's moisture before transitioning into the cooler, drier months ahead. This fluctuating humidity pattern highlights a significant increase from the drier conditions seen in the spring, with a noteworthy drop to 71% in both January and December, showcasing the stark contrasts between winter and summer.

September Average Humidity in Qinghaihu

This chart illustrates the average monthly humidity levels in Qinghaihu, 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 Qinghaihu is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%80%81%78%71%77%77%82%82%85%80%71%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Qinghaihu

As September arrives in Qinghaihu, China, the UV Index remains notably high at 11, placing it in the extreme exposure category. With a burn time of just 10 minutes, this month reflects a continued trend from the peak summer months of June, July, and August, where the UV Index reached similar extreme levels of 14 and 13, respectively. Although slightly lower, September’s UV Index still demands caution, as it continues to warrant vigilant sun protection. This pattern indicates a significant intensity of solar radiation that persists even as the season transitions, highlighting the importance of staying informed about UV exposure. For more details, visit the Qinghaihu UV Index.

Maximum UV Index Levels in Qinghaihu for September

The chart shows the monthly maximum UV Index (UVI) for Qinghaihu 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 Qinghaihu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469121414141311964
Data source: Qinghaihu 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 Qinghaihu

September in Qinghaihu, China, offers a delightful transition into autumn, boasting 307 hours of sunshine. This marks a significant dip from the sun-drenched peak of 366 hours in July, yet remains robust compared to many other months. As summer fades, sunshine hours taper off gradually, following the trend established from May's high of 343 hours down to October's nearly equivalent 308 hours. While September does not reach the sunny heights of the summer months, it retains an inviting warmth and brightness that makes it a lovely time to explore the stunning landscapes of Qinghaihu. This gentle decrease in sunlight indicates the steady approach of winter, with November and December typically offering fewer sunny days, averaging 290 and 289 hours respectively.

Monthly Sunshine Duration in Qinghaihu: September Highlighted

The September sunshine duration represents the total number of hours Qinghaihu 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.
JanFebMarAprMayJunJulAugSepOctNovDec234h284h327h317h343h330h366h341h307h308h290h289h
Data source: Qinghaihu September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Qinghaihu During September

In Qinghaihu, China, the likelihood of sunny weather in September is approximately 48%, which is a slight uptick compared to the summer months but still below the sunnier late year months. As the seasons transition, September offers a refreshing shift from the sweltering heat of July and August, where the chances of sun dipped to 51% and 41%, respectively. The trend reveals a gradual increase in sunshine towards the fall, culminating in November's impressive 77% and December's 65%. Thus, while September may not boast the highest probability of sunny days, it serves as a delightful precursor to the sunnier autumn skies that soon follow.

Percentage of Sunny Days in September in Qinghaihu

The chart illustrates the percentage of sunny days in Qinghaihu 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 Qinghaihu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec63%51%45%42%46%29%51%41%48%44%77%65%
Data source: Qinghaihu September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Qinghaihu in September

In Qinghaihu, China, the rhythm of daylight shifts throughout the year, creating a captivating dance of light and shadow. By September, daylight reaches a moderate 12 hours, signaling the gradual transition from the summer's peak brightness. This month marks a gentle decline from the 14-hour days of June, July, and August, as autumn approaches. Following the vibrant and sun-soaked summer, September's slightly shorter days provide a balanced backdrop for both outdoor activities and the unfolding beauty of the changing season. As the year progresses towards October and its 11 hours of daylight, the waning summer light contrasts beautifully with the crispness of autumn, inviting reflection and appreciation of nature's cycles.

Average Daylight Hours in Qinghaihu for September

The chart illustrates the variation in daylight duration in Qinghaihu throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 56m10h 49m11h 57m13h 8m14h 7m14h 37m14h 22m13h 30m12h 23m11h 12m10h 11m9h 40m
Data source: Qinghaihu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Qinghaihu

In September, the winds in Qinghaihu, China blow at an average speed of 2.8 m/s (6 mph), continuing a gentle trend that started in the summer months. With wind speeds remaining relatively stable from July through September, the area's breeziness provides a refreshing reprieve as the warmth of summer begins to fade. Interestingly, this slight autumnal shift in weather is marked by a rise in wind speed as the year progresses, reaching 3.5 m/s (8 mph) by November. This consistency, coupled with the upcoming increase, hints at an impending seasonal transition that will soon envelop the landscape in cooler gusts, setting the stage for the colder months ahead. As wind whispers through the pines, September captures that serene balance before nature turns its page.

Average September Wind Speed in Qinghaihu

The chart displays monthly wind speed patterns in Qinghaihu, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.32.72.83.22.72.62.82.92.8 m/s2.93.52.4
Data source: Qinghaihu September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Qinghaihu Compares to Other Months

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

In September, the weather typically presents a mild transition into autumn with average temperatures around 9°C (49°F), peaking at a comfortable 19°C (66°F). However, this month also sees significant rainfall, with 87 mm (3.4 in) spread over 17 days, contributing to a high humidity level of 82%.

In stark contrast, January brings frigid winter conditions, where temperatures plummet to an average of -12°C (11°F) and can drop as low as -22°C (-7°F). This month is characterized by minimal precipitation, with only 5 mm (0.2 in) recorded across just 1 day, and a lower humidity level of 74%. For more details on January weather, you can check Qinghaihu weather in January.

September and February present strikingly different weather patterns. In September, temperatures range from a mild minimum of 2°C (36°F) to a comfortable maximum of 19°C (66°F), with an average of 9°C (49°F). This month sees significant precipitation, with 87 mm (3.4 in) spread over 17 days, contributing to a high humidity level of 82%. In contrast, February offers a stark chill, with temperatures plunging to a minimum of -21°C (-6°F) and only reaching a maximum of 4°C (40°F), resulting in an average of -10°C (15°F). February is much drier, with just 6 mm (0.2 in) of precipitation over 2 days, and humidity remains slightly lower at 80%. For more insights, check out Qinghaihu weather in February.

When comparing the weather in September and March, significant differences emerge. September enjoys a milder temperature range, with minimums around 2°C (36°F) and maximums reaching up to 19°C (66°F), while March experiences much cooler temperatures, fluctuating from a low of -15°C (5°F) to a maximum of 11°C (53°F). Precipitation levels also vary, with September receiving 87 mm (3.4 in) over 17 days, contrasting sharply with March's much lighter rainfall of 14 mm (0.5 in) across just 4 days. Both months exhibit high humidity, with September at 82% and March slightly lower at 81%. For a closer look at March weather, you can visit Qinghaihu weather in March.

In comparing the weather between September and April, it's evident that September offers much milder temperatures, with an average of 9°C (49°F) compared to April's chillier average of 0°C (32°F). While September boasts a maximum temperature of 19°C (66°F), April's peak is a cooler 12°C (53°F). Additionally, September experiences significantly more precipitation at 87 mm (3.4 in) over 17 days, compared to April's lighter rainfall of 35 mm (1.4 in) across just 7 days. Both months show similar humidity levels, with September at 82% and April slightly lower at 78%. For more detailed information about April weather, you can visit Qinghaihu weather in April.

When comparing the weather in September and May, notable differences emerge. September boasts a milder average temperature of 9°C (49°F), with maximums reaching up to 19°C (66°F), while May's average temperature is cooler at 3°C (38°F), peaking at 14°C (58°F). Precipitation levels are also distinct; September experiences 87 mm (3.4 in) of rainfall over 17 days, indicating a wetter month compared to May's 48 mm (1.9 in) spread over just 9 days. Furthermore, September sees higher humidity at 82%, while May's humidity level stands at a more comfortable 71%. For more specific details about May weather conditions, you can refer to Qinghaihu weather in May.

September and June share similar maximum temperatures, both reaching around 19°C (66°F to 67°F), but September typically experiences slightly lower average temperatures, with an average of 9°C (49°F) compared to June's 10°C (50°F). Precipitation is quite comparable in both months, with September receiving 87 mm (3.4 in) over 17 days and June recording 92 mm (3.6 in) over 14 days. Additionally, September tends to be more humid, with a humidity level of 82% versus June's 77%. For more detailed weather information for June, you can check Qinghaihu weather in June.

When comparing the weather patterns of September and July, several key differences emerge. September experiences cooler temperatures, with an average of 9°C (49°F) and a maximum of 19°C (66°F), while July is warmer, boasting an average of 13°C (56°F) and a high of 24°C (75°F). Additionally, September is characterized by higher humidity at 82%, compared to July's 77%. Precipitation levels also vary, with September recording 87 mm (3.4 in) over 17 days, whereas July has a slightly higher total of 104 mm (4.1 in) across 14 days. For more information on the weather during July, you can visit Qinghaihu weather in July.

In comparing the weather between September and August, September experiences cooler temperatures, with a minimum of 2°C (36°F), an average of 9°C (49°F), and a maximum of 19°C (66°F). In contrast, August tends to be milder, featuring a minimum of 5°C (41°F), an average of 13°C (56°F), and a maximum of 21°C (70°F). Precipitation levels are higher in August at 139 mm (5.5 in) compared to September's 87 mm (3.4 in), although both months see rainfall on 17 days. Interestingly, humidity levels remain consistent at 82% across both months. For further details, you can visit Qinghaihu weather in August.

September and October present a notable shift in weather dynamics. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 19°C (66°F), with an average of 9°C (49°F). The month experiences considerable precipitation, totaling 87 mm (3.4 in), spread over 17 days, accompanied by high humidity at 82%. In contrast, October sees a further drop in temperatures, with a minimum of -6°C (22°F) and an average of 3°C (38°F), peaking at 16°C (61°F). Rainfall decreases significantly to 49 mm (1.9 in) over just 10 days, while humidity remains relatively high at 85%. For a more detailed look at the weather in October, you can visit Qinghaihu weather in October.

September and November present stark contrasts in weather. In September, temperatures range from a chilly 2°C (36°F) at their lowest to a comfortable high of 19°C (66°F), with an average of 9°C (49°F). The month is relatively wet, receiving 87 mm (3.4 in) of precipitation over 17 days and maintaining a high humidity level of 82%. Conversely, November sees frigid conditions, with temperatures dipping from a minimum of -12°C (11°F) to a maximum of 8°C (46°F), averaging -2°C (28°F). The month is much drier, with only 16 mm (0.6 in) of precipitation over a mere 4 days and slightly lower humidity at 79%. For more details, you can check Qinghaihu weather in November.

September and December present stark contrasts in weather conditions. In September, temperatures range from a mild 2°C (36°F) at night to a comfortable high of 19°C (66°F) during the day, accompanied by 87 mm (3.4 in) of precipitation over 17 days, resulting in a humid environment with 82% humidity. In contrast, December brings a significant drop in temperatures, with a chilling minimum of -21°C (-5°F) and a maximum that barely reaches 2°C (36°F). The precipitation decreases dramatically to just 9 mm (0.3 in) over 2 days, and humidity drops to 71%. For a more detailed overview of December weather in this region, you can check Qinghaihu weather in December.

Compare Qinghaihu's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Qinghaihu

As September unfolds, Qinghaihu offers a distinct shift in weather patterns compared to its preceding summer months. With an average temperature cooling significantly, the crisp air heralds the arrival of autumn, making it a refreshingly pleasant time to visit. However, the increased precipitation—spanning over half the days of the month—adds a touch of unpredictability, often enveloping the landscape in mist. This month stands out with a higher humidity level, giving the atmosphere a unique texture that enhances the natural beauty of the region. For a deeper understanding of what to expect in this picturesque locale, check the full details at Qinghaihu Climate.