Last updated: August 21, 2025
In Chongdui, China, September ushers in a brisk transition into autumn, with daytime temperatures peaking at a cool 10°C (51°F) and dipping to an average of 2°C (36°F) at night. Expect chilly nights, with lows reaching -9°C (17°F), perfect for bundling up in cozy layers. The month is notably wet, receiving 204 mm (8.0 in) of precipitation over 27 days, keeping the landscape lush and vibrant. Additionally, with humidity levels soaring to 85%, the air carries a crisp freshness, adding to the enchanting charm of Chongdui during this time of year. Whether you're exploring the scenic vistas or savoring warm meals, September offers a unique atmospheric experience.
As September rolls in, Chongdui, China experiences a subtle shift in its climate, marking the end of summer's mild warmth. The temperatures during this month see a minimum of -9°C (17°F), an average of 2°C (36°F), and a peak of 10°C (51°F). This gradual decline from the warmer temperatures of August underscores the region's transition into the colder months, with nights becoming notably chillier and days maintaining a crisp edge. While still above freezing, September's climate invites a layering of clothing and an appreciation for the unique beauty of the changing season, offering a preview of the more frigid conditions to come in the following months.
In September, Chongdui experiences a noteworthy precipitation total of 204 mm (8.0 in), indicating a marked decrease from the intense summer months of July and August, which saw record highs of 308 mm and 298 mm, respectively. This shift in rainfall is accompanied by 27 days of precipitation, highlighting a still-active wet season but signaling the transition toward drier autumn months. As summer gives way to fall, the days become shorter and the weather slowly begins to dry out, setting the tone for a decrease in rainfall as the year progresses into October, which typically sees just 58 mm (2.3 in) after September's abundance.
In September in Chongdui, China, humidity levels remain notably high, averaging 85% as summer transitions to autumn. This marks a slight decrease from the peak humidity experienced in the preceding months of July and August, which recorded a staggering 87% and 89%, respectively. Despite this drop, September's humidity continues to reflect the region's characteristic moistness, underscoring the lingering effects of the summer months. As the year progresses into October, a further decline is expected, with humidity levels settling at 73%, hinting at the drier air to come. Overall, the humidity pattern throughout the months showcases a clear trend of fluctuating moisture levels, with summer's peak still felt in early autumn.
As September unfolds in Chongdui, China, the UV Index remains impressively high at 18, placing it firmly within the extreme exposure category. This trend of elevated UV levels has been consistent throughout the summer months, peaking at 20 in July, and only slightly tapering off in August. With a burn time of just 10 minutes, residents and visitors alike should remain vigilant in protecting their skin from harmful ultraviolet rays. This pattern not only highlights the area's intense sun exposure but also emphasizes the need for year-round sun safety measures. For more details on UV levels, check out the Chongdui UV Index.
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As September unfolds in Chongdui, China, the city's sun-drenched days continue to bask in the warmth of late summer, with an impressive 316 hours of sunshine. This marks a slight dip from the dazzling highs experienced in May at 377 hours, yet it remains consistent with the overall trend of abundant sunlight prevalent throughout the warmer months. The gradual easing of sunshine hours from peak summer reflects the seasonal transition into autumn, but September's rays still provide ample opportunity for outdoor activities and leisurely strolls. Overall, the sunshine pattern in Chongdui reveals a delightful balance of bright days that both locals and visitors can cherish as they prepare to welcome the cooler fall months.
In Chongdui, China, the likelihood of sunny weather takes a noticeable dive during the summer months, reaching a low of 4% in July and 2% in August. As September rolls in, the chance of sunshine sees a slight recovery, climbing to 14%, though it still falls short of more favorable months like January and February, which boast about 50% sunshine. This pattern suggests a transition from the bleak summer skies to a more promising autumn, with October bringing a further increase in sunny potential to 27%. Thus, while September might not be the sunniest month, it hints at a gradual return to brighter days ahead.
As summer gracefully transitions into autumn, September in Chongdui, China sees a return to shorter days, with an average of 12 hours of daylight. This marks a slight decrease from the peak of 13 hours experienced over the summer months of June through August. However, the daylight duration still reflects the lingering warmth of late summer, providing ample opportunity for outdoor activities. Following September, the days continue to shorten, falling to 11 hours in October and further to 10 hours by November and December, highlighting the gradual shift towards winter. This pattern of daylight duration not only shapes daily life in Chongdui but also offers a rhythmic reminder of the changing seasons.
In Chongdui, China, the wind whispers gently through the month of September, boasting an average speed of 1.1 m/s (2 mph). This marks the continuation of a trend seen throughout the warmer months, where wind speeds have generally declined since the spring. Notably, July hits a low point at 0.9 m/s, leading into a slight recovery in August before tapering off again in September. With the gentle breezes of autumn setting in, the transitioning weather invites a serene ambiance, perfect for outdoor strolls and reflection. As the year draws to a close, it’s clear that September’s softness in wind serves as a subtle prelude to the cooler months ahead, which on average, maintain a modest wind speed, oscillating between 1.1 m/s and 1.3 m/s.
Weather in Chongdui varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Chongdui, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present striking contrasts in weather conditions. In September, temperatures range from a chilly -9°C (17°F) at night to a pleasant maximum of 10°C (51°F) during the day, with an average temperature around 2°C (36°F). The month is characterized by high humidity at 85% and significant precipitation, averaging 204 mm (8.0 in) over 27 days. In contrast, January experiences far colder temperatures, with nighttime lows plummeting to -33°C (-28°F) and daytime highs only reaching 2°C (36°F), resulting in an average temperature of -16°C (4°F). Combined with much lower humidity at 67% and only 73 mm (2.9 in) of precipitation over just 10 days, January portrays a much harsher winter landscape. For a more detailed look at January weather, you can check Chongdui weather in January.
In September, temperatures range from a minimum of -9°C (17°F) to a maximum of 10°C (51°F), with an average of 2°C (36°F). This month experiences considerable precipitation, totaling 204 mm (8.0 in) over 27 days, leading to high humidity levels of 85%. In contrast, February sees much colder conditions, with temperatures plummeting from a minimum of -30°C (-22°F) to a maximum of -1°C (31°F), and an average temperature of -15°C (6°F). Precipitation in February is notably lower at 85 mm (3.4 in) over just 12 days, along with reduced humidity levels of 72%. For more details on the weather during this time, visit Chongdui weather in February.
When comparing the weather in September and March, it's clear that September tends to be milder and wetter. Average temperatures in September range from a minimum of -9°C (17°F) to a maximum of 10°C (51°F), with an average of 2°C (36°F). The month sees significant precipitation of 204 mm (8.0 in) over 27 days, contributing to a high humidity level of 85%. In contrast, March presents a much colder climate, with temperatures ranging from a minimum of -28°C (-18°F) to a maximum of 1°C (35°F), averaging -12°C (10°F). Precipitation is also lower, totaling 98 mm (3.9 in) over 17 days, with decreased humidity at 69%. For a more detailed look at March conditions, you can visit Chongdui weather in March.
When comparing the weather in September and April, notable differences emerge. In September, temperatures range from a minimum of -9°C (17°F) to a maximum of 10°C (51°F), with an average of 2°C (36°F). This month sees considerable precipitation, with 204 mm (8.0 in) falling over 27 days and a higher humidity level of 85%. In contrast, April experiences lower temperatures, plummeting to a minimum of -23°C (-10°F) and an average of -9°C (17°F), while only reaching up to 2°C (36°F) at its warmest. Additionally, April has significantly less precipitation, measuring at 77 mm (3.0 in) over 16 days, and a lower humidity of 65%. For a closer look at April weather, visit Chongdui weather in April.
When comparing the weather in September and May, it's clear that September tends to be milder, with average temperatures around 2°C (36°F), while May generally experiences colder conditions, averaging -4°C (25°F). September also sees more precipitation, totaling 204 mm (8.0 in) over 27 days, compared to May's 126 mm (4.9 in) across 20 days. Additionally, humidity levels are higher in September at 85%, compared to May's 67%, contributing to a damp and chilly atmosphere during the early autumn months. For more detailed information on May weather, you can visit Chongdui weather in May.
When comparing the weather in September and June, we can see notable differences in temperature and precipitation patterns. September experiences slightly milder temperatures, with a maximum of 10°C (51°F) and an average of 2°C (36°F), compared to June's peak of 7°C (46°F) and average of 1°C (34°F). However, September also tends to be wetter, recording 204 mm (8.0 in) of precipitation over 27 days, while June has 164 mm (6.5 in) over 23 days. Additionally, humidity levels are higher in September at 85%, compared to 72% in June. For a closer look at June's weather specifics, visit Chongdui weather in June.
In comparing the weather conditions of September and July, we observe some notable differences despite their similar average maximum temperatures of 10°C (50°F). September experiences a lower average temperature of 2°C (36°F), resulting in cooler conditions overall compared to July, which has an average of 3°C (38°F).
Precipitation levels are also distinct; September sees 204 mm (8.0 in) of rain over 27 days, while July has a higher total of 308 mm (12.1 in) over 29 days. This reflects a wetter climate in July, contributing to a slightly higher humidity of 87% compared to September's 85%. For a more detailed look at July weather, you can check Chongdui weather in July.
September's weather in Chongdui brings cooler temperatures compared to August, with a minimum of -9°C (17°F) and an average of 2°C (36°F), while August sees a slightly milder minimum of -2°C (28°F) and an average of 4°C (40°F). Both months experience significant rainfall, but August has higher total precipitation at 298 mm (11.7 in) over 30 days, compared to September's 204 mm (8.0 in) spread across 27 days. Humidity levels remain high in both months, though slightly lower in September at 85% compared to August's 89%. For more detailed information on August weather, you can refer to Chongdui weather in August.
In September, the weather is relatively mild, with temperatures ranging from a minimum of -9°C (17°F) to a maximum of 10°C (51°F) and an average of 2°C (36°F). This month is characterized by high humidity at 85% and frequent rainfall, totaling 204 mm (8.0 in) over 27 days. In contrast, October brings much colder temperatures, with lows dropping to -18°C (-1°F) and an average temperature of -3°C (26°F), while the maximum reaches only 7°C (45°F). Precipitation significantly decreases to 58 mm (2.3 in) over just 14 days, and humidity drops to 73%. To learn more about the specific conditions in October, visit Chongdui weather in October.
In September, temperatures in Chongdui range from a chilly -9°C (17°F) at night to a milder 10°C (51°F) during the day, with an average temperature of about 2°C (36°F). The month is quite wet, experiencing significant precipitation of 204 mm (8.0 in) over 27 days, along with high humidity levels at 85%. In contrast, November sees a notable drop in temperature, with nighttime lows plunging to -26°C (-14°F) and daily highs reaching only up to 1°C (35°F); the average temperature settles at a frigid -10°C (15°F). Precipitation decreases dramatically to just 33 mm (1.3 in) over 10 days, and humidity drops to a more manageable 62%. For more details about November weather, check out Chongdui weather in November.
September and December present stark contrasts in weather conditions. In September, temperatures range from a minimum of -9°C (17°F) to a pleasant maximum of 10°C (51°F) with an average of 2°C (36°F). The month experiences significant precipitation, totaling 204 mm (8.0 in) over 27 days, coupled with a high humidity level of 85%. In contrast, December plunges into much colder temperatures, with minima dropping to -31°C (-23°F) and an average around -13°C (8°F), peaking at -1°C (31°F). This month sees a substantial decrease in precipitation, occurring on only 9 days and totaling 53 mm (2.1 in), along with lower humidity at 60%. For a more detailed insight into December's weather, you can visit Chongdui weather in December.
As September rolls in, Chongdui's weather transforms dramatically compared to the milder summer months. The cooler temperatures make the transition to autumn palpable, with an average temperature firmly sitting at just 2°C, contrasting sharply with the warmth of July and August. Alongside this drop in temperature, residents and visitors alike experience an increase in precipitation, with the area receiving considerable rainfall over nearly every day of the month. The high humidity levels at 85% only add to the sense of chill, marking September as a noticeably wet and brisk month. For those curious about the full spectrum of Chongdui's climate, detailed insights can be found at Chongdui Climate.