Last updated: August 21, 2025
In Longmen, China, September ushers in a blend of warmth and moisture, making it a picturesque time to explore the region. With maximum temperatures reaching up to 35°C (95°F) and an average of 23°C (74°F), visitors can expect pleasant days, albeit with cooler evenings sitting around 14°C (58°F). This month also brings 141 mm (5.6 in) of rainfall over approximately 13 days, creating a lush backdrop for outdoor activities. The humidity levels hover around 75%, contributing to a rich, tropical atmosphere that enhances the beauty of this tranquil locale.
In September, Longmen, China, experiences a delightful transition towards cooler weather, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 35°C (95°F). The average temperature settles at a comfortable 23°C (74°F), providing a pleasant atmosphere for outdoor activities. This month marks a subtle shift from the intense heat of summer, maintaining a warm charm while hinting at the approaching autumn. As the days grow shorter, September delights visitors with clear skies and moderate warmth, making it an ideal time to explore the scenic beauty of Longmen and its famed cultural sites.
In September, Longmen, China, experiences a notable shift in precipitation patterns as the region transitions from the summer months. With an average rainfall of 141 mm (5.6 in) over 13 days, this month marks a decline compared to the heavy showers of the preceding summer, particularly June and July, which garnered impressive totals of 355 mm (14.0 in) and 333 mm (13.1 in), respectively. The rainfall in September, while still substantial, signals the onset of drier conditions leading into autumn, as evidenced by the sharp drop in precipitation to just 37 mm (1.4 in) in October. This reduction in both volume and frequency reflects a gradual transition from the peak wet season, creating a more temperate climate that characterizes the early fall in Longmen.
In September, humidity in Longmen, China, experiences a noticeable dip, settling at 75% after the summer peak months. This shift comes on the heels of July's 90% humidity, followed by August's 88%, indicating that the region transitions from the sticky heat of summer to the more comfortable autumn months. While September's levels are significantly lower than the summer highs, they remain comfortably elevated compared to the 70% of January, suggesting a gradual move towards drier conditions. This pattern reflects a typical trend in Longmen, where humidity tends to peak during the summer before gradually tapering off as the year progresses into the fall.
As September unfolds in Longmen, China, residents experience a notable shift in UV exposure. With a UV Index of 10, categorized as very high, the potential for sunburn becomes significant with just 15 minutes of unprotected skin exposure. This trend reflects a gradual decline from the summer's peak, where July and August boasted an extreme UV Index of 12, limiting safe sun exposure to only 10 minutes. As the season transitions into autumn, September still demands careful sun protection strategies—a reminder that even as temperatures cool, UV rays can remain a potent force. For more details on the UV Index trends throughout the year, check out Longmen UV Index.
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September in Longmen, China, continues the enchanting trend of warm, sunlit days, boasting 257 hours of sunshine. This month gracefully bridges the summer's peak, seen in August's impressive 304 hours, and the gradual decline into the cooler autumn, as sunlight dips in October. The data reveals a clear pattern: the year begins with modest sunshine that crescendos through the spring and summer, peaking in July. As the seasons start to transition, September still holds onto a substantial amount of sunlight, inviting locals and visitors alike to bask in its glow. The persistent warmth of early autumn hints at the lingering beauty of daylight, making September a delightful time to enjoy the outdoors in Longmen.
September in Longmen, China, emerges as a noteworthy month for sunshine, boasting a 52% chance of clear skies. This marks a significant upswing compared to the summer months, when the likelihood of sun dips to as low as 17% in July. Following a trend of fluctuating sunshine throughout the year, September transitions us from the murky, overcast days of summer, providing a refreshing burst of sunlight as autumn approaches. As the year progresses, the chances of sunny weather continue to rise, peaking in December with 64%. Therefore, September offers a sweet spot for those seeking to enjoy vibrant, sunny days before the cooler months set in.
As summer fades, September in Longmen, China ushers in a gradual reduction in daylight, offering 12 hours of sunlight each day. This marks a subtle decline from the vibrant 14 hours enjoyed in June, transitioning from the long, sunlit days of summer to the softer light of autumn. The rhythm of daylight throughout the year is distinctly echoed; it begins with shorter hours in January, steadily increasing through the spring months, reaching a peak in June before tapering off again as the year progresses toward winter. This cyclical pattern not only highlights the characteristic rhythm of seasonal change but also serves as a reminder of nature’s beautiful transitions.
As September arrives in Longmen, China, the winds gently pick up, averaging 1.8 m/s (4 mph), maintaining a steady rhythm consistent with the preceding months. This month reflects a return to the calmer breezes of the late summer, offering a comforting embrace after July's brief spike to 2.2 m/s (5 mph). Following the fluctuations through the warmer months, where wind speeds occasionally dipped to 1.5 m/s (3 mph) in June and August, September establishes a reliable wind flow that transitions gracefully into the autumn. As October approaches, the winds are poised to increase once again, forecasted to reach 2.1 m/s (5 mph), signaling the seasonal shift ahead and the dynamic relationship between Longmen's weather patterns and its tranquil landscapes.
Weather in Longmen varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Longmen, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present striking contrasts in weather. In September, temperatures are considerably warmer, ranging from a minimum of 14°C (58°F) to a maximum of 35°C (95°F), with an average of 23°C (74°F). The month also experiences significant precipitation, totaling 141 mm (5.6 in) across 13 days, and a humidity level of 75%. In contrast, January's weather is much colder, with temperatures dipping to a minimum of -10°C (15°F) and averaging at just 4°C (40°F), peaking at 21°C (69°F). Precipitation is lighter at 75 mm (2.9 in) over 9 days, with a humidity of 70%. The stark difference in temperatures and precipitation highlights the unique seasonal shifts, offering a diverse range of weather experiences throughout the year. For more information, see Longmen weather in January.
September and February display contrasting weather patterns, characterized by significant differences in temperature and precipitation. September enjoys warmer temperatures, with minimums around 14°C (58°F) and highs reaching up to 35°C (95°F), while February experiences a chillier climate, with temperatures dipping to -4°C (25°F) at night and peaking at 24°C (76°F) during the day. In terms of precipitation, September is wetter, receiving 141 mm (5.6 in) over 13 days, compared to February's 93 mm (3.7 in) over 12 days. Despite the modest variation in humidity, with September at 75% and February at 73%, the overall atmosphere feels markedly different across these months. For more detailed information on February conditions, check out Longmen weather in February.
September and March present distinctly different weather patterns, with September generally showcasing warmer temperatures. In September, the minimum temperature is around 14°C (58°F), averaging 23°C (74°F), and reaching a maximum of 35°C (95°F). In contrast, March experiences cooler temperatures, with a minimum of 1°C (34°F) and an average of 12°C (53°F), peaking at 28°C (83°F). Additionally, March tends to have slightly higher precipitation at 171 mm (6.7 in) over 15 days compared to September's 141 mm (5.6 in) across 13 days. The humidity levels are also noteworthy, with March being marginally more humid at 82%, compared to September's 75%. For more detailed information on March weather, you can check Longmen weather in March.
September and April showcase distinct weather patterns that reflect the transition between seasons. In September, the average temperature reaches a comfortable 23°C (74°F), with highs soaring up to 35°C (95°F), while the minimum temperature hovers around 14°C (58°F). The month experiences about 141 mm (5.6 in) of precipitation over 13 days, and humidity levels at 75% contribute to a warm, yet somewhat muggy atmosphere. In contrast, April enjoys milder temperatures, with an average of 16°C (62°F) and maximums reaching 31°C (89°F). The minimum temperature drops to 3°C (37°F), and precipitation is slightly higher at 153 mm (6.0 in) over 12 days, along with increased humidity at 86%. For more details on April weather, check out Longmen weather in April. Overall, September tends to be warmer and drier compared to the cooler and wetter conditions of April.
September generally offers warmer temperatures compared to May, with an average high of 23°C (74°F) and reaching up to 35°C (95°F), while May has a slightly lower average high of 21°C (70°F) and peaks at 34°C (93°F). However, May experiences more precipitation, with an average of 207 mm (8.1 in) over 14 days, compared to September's 141 mm (5.6 in) across 13 days. The humidity is also higher in May at 85%, compared to September's 75%, making the latter month seem a bit more comfortable overall. For a closer look at May weather, you can check Longmen weather in May.
In comparing the weather between September and June, we see some notable differences. September offers a slightly warmer average temperature of 23°C (74°F) with maximums reaching up to 35°C (95°F), while June has an average of 24°C (76°F) and a peak of 34°C (94°F). However, June is characterized by significantly more precipitation, with 355 mm (14.0 in) falling over 18 days compared to just 141 mm (5.6 in) in September over 13 days. Additionally, humidity levels are higher in June at 85%, whereas September sees a slightly lower humidity of 75%. For more details on June weather, check Longmen weather in June.
In comparing the weather between September and July, we see notable differences in temperature and precipitation. September typically experiences milder temperatures with a minimum of 14°C (58°F) and an average of 23°C (74°F), peaking at 35°C (95°F). In contrast, July is warmer, featuring a minimum of 19°C (66°F) and an average of 27°C (81°F), with maximums soaring to 38°C (101°F). Additionally, September has significantly less rainfall, averaging 141 mm (5.6 in) over 13 days, while July sees a much higher precipitation level of 333 mm (13.1 in) across 19 days. The humidity in July is also notably higher at 90%, compared to September's 75%. For a detailed look at July's weather, you can check out Longmen weather in July.
When comparing the weather in September and August, September's temperatures were slightly cooler, with a minimum of 14°C (58°F) and an average of 23°C (74°F), compared to August's minimum of 17°C (63°F) and average of 27°C (82°F). August also boasted warmer maximum temperatures, peaking at 36°C (97°F) against September's high of 35°C (95°F). Precipitation levels were higher in August, totaling 179 mm (7.1 in) over 17 days, compared to September's 141 mm (5.6 in) spread out over 13 days. Additionally, humidity was notably higher in August at 88%, compared to September's 75%. For more detailed information about the weather conditions, you can refer to Longmen weather in August.
September and October exhibit a notable transition in weather patterns. September boasts higher temperatures with a minimum of 14°C (58°F) and an average of 23°C (74°F), peaking at 35°C (95°F). In contrast, October experiences cooler weather with a minimum temperature dropping to 6°C (44°F) and an average of 17°C (63°F), while still reaching a maximum of 35°C (94°F) on warmer days. Precipitation also decreases significantly, with September receiving 141 mm (5.6 in) over 13 days, compared to October's 37 mm (1.4 in) over just 7 days. Despite the lower temperatures, October maintains a slightly higher humidity level at 76%, compared to September's 75%. For more details about the weather in October, you can check this link: Longmen weather in October.
September and November exhibit contrasting weather patterns. In September, temperatures range from a mild 14°C (58°F) at night to a scorching 35°C (95°F) during the day, with an average of 23°C (74°F). The month also experiences significant precipitation, totaling 141 mm (5.6 in) over 13 days and a humidity level of 75%. In stark contrast, November brings cooler weather, with temperatures dropping significantly, ranging from a chilly 0°C (32°F) at night to a maximum of 26°C (79°F) during the day, averaging just 12°C (54°F). Precipitation levels decline markedly to 51 mm (2.0 in) over 10 days, while humidity rises to 84%. For a detailed look at November weather, you can visit Longmen weather in November.
September and December exhibit stark contrasts in weather conditions. In September, temperatures can range from a minimum of 14°C (58°F) to a sweltering maximum of 35°C (95°F), with an average temperature of 23°C (74°F). The month experiences significant rainfall, totaling 141 mm (5.6 in) over 13 days, and maintains a humidity level of 75%. Conversely, December brings a chill with temperatures dipping to a minimum of -5°C (23°F) and averaging just 6°C (43°F), peaking at 19°C (67°F). Precipitation decreases to 60 mm (2.4 in) over 8 days, with a slightly higher humidity of 77%. For further details on December weather, you can visit Longmen weather in December.
As summer transitions into autumn, September in Longmen offers a delightful shift in weather that distinguishes it from the peak months. The temperature begins to cool, with warm days giving way to pleasant evenings, creating a comfortable atmosphere for outdoor activities. However, this month also brings a noticeable increase in rainfall, contributing to the higher humidity that lingers in the air. With 13 days of precipitation, September can feel quite different from the drier summer months, setting the stage for a vibrant fall. For more detailed insights, explore Longmen Climate and plan your visit accordingly!