Last updated: August 21, 2025
Discover the September climate of Longmen, China, where temperatures typically range from a maximum of 35°C (95°F) to a minimum of 23°C (73°F), with an average temperature around 28°C (83°F). Visitors can expect a high humidity level of 78%, contributing to the sultry feel of the air. During this month, the region receives a significant amount of rainfall, totaling 196 mm (7.7 in), spread over 22 rainy days. Whether you're planning to explore the stunning landscapes or savor local cuisine, be prepared for a tropical climate that shapes both the scenery and experience.
In September, Longmen experiences a graceful transition towards autumn, with temperatures ranging from a mild 23°C (73°F) at night to a pleasant 35°C (95°F) during the day, maintaining an average of 28°C (83°F). This month showcases a notable cooling compared to the sweltering highs of summer, yet it's still warm enough to enjoy outdoor activities. The trend reflects a gradual decrease from the peak summer months, signaling a shift in the weather pattern that invites residents and visitors alike to relish the lingering warmth before cooler October days set in. With comfortable evenings and manageable daytime heat, September in Longmen is a delightful time for both exploration and relaxation.
September in Longmen, China, continues the trend of significant rainfall that peaks in the summer months. With 196 mm (7.7 in) of precipitation, September experiences a notable decline from the previous month's record of 318 mm (12.5 in), yet it retains a substantial amount of rainfall across 22 days. This transition into autumn hints at a wetter climate that precedes the drier months ahead. The consistent rainfall seen throughout the summer, particularly in August and September, highlights the region's shift from the heavy downpours of summer to the more moderate precipitation that is characteristic of October and the subsequent months. As the year winds down, the skies over Longmen begin to reclaim their balance, setting the stage for the drier spells that define its late-year climate.
As summer transitions to autumn in Longmen, China, September showcases a notable drop in humidity, settling at 78%—a decrease from the 86% experienced in both July and August. This shift signals the onset of drier conditions as the year progresses, following a trend where humidity peaks during the sweltering summer months. With May to August consistently recording higher levels, September marks a refreshing change, reminiscent of the lighter humidity seen in April's 71%. The month acts as a bridge, easing into the milder autumn climate while still retaining a hint of summer's lingering warmth.
In September, Longmen, China experiences a notable UV Index of 12, categorized as extreme, with a quick burn time of just 10 minutes. This marks a slight decline from the peak levels witnessed in July and August, both of which reached a UV Index of 14. Despite this decrease, September's UV exposure remains significant, continuing a trend of high UV levels from spring through summer. As autumn approaches, the UV Index begins to stabilize around 12, lingering in the extreme category alongside October. It's essential for residents and visitors to remain vigilant about sun protection during this period. For more insights on UV levels throughout the year, check out the detailed Longmen UV Index.
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In Longmen, China, September emerges as a vibrant month, basking in 298 hours of sunshine. This warm glow follows a summer filled with abundant light, where July leads the year with 315 hours and August retains a strong hold with 282 hours. As autumn takes its first steps, the sun’s rays begin to wane, yet September still enjoys generous luminosity, sitting comfortably above the average hours recorded in the earlier months of the year. This transition signals a slow descent into cloudier days, as seen in the subsequent October with 281 hours and November's 264 hours. Thus, while the warmth of summer lingers, September stands out as a last hurrah, a month where the sun generously embraces Longmen, coaxing the landscape into a colorful prelude to fall.
In Longmen, China, September presents a favorable chance of sunshine, with the likelihood sitting at 41%—a notable improvement from the dismal figures seen in the summer months of June and August, where clear skies are rare. As the summer fades, September marks a transition towards more stable weather patterns, offering a welcome break from the heavy cloud cover. The chance of sunny days remains higher than in the peak of summer, suggesting that this month is an excellent time for outdoor activities while enjoying the changing hues of early autumn. With the chance of sun nearing the levels seen in spring, September is a great time to explore this vibrant region.
In Longmen, China, the September daylight duration reflects a gradual transition as summer yields to autumn. With approximately 12 hours of daylight, September marks a peak that follows the sun-drenched months of June and July, which boast the longest days of the year. This balance of daylight is consistent, mirroring the earlier months of spring where the daylight gradually increased. As September progresses, the light hours begin to taper off, heralding the approach of October and the shorter days ahead. This rhythmic ebb and flow of daylight not only enhances the natural beauty of the landscape, but also imbues a sense of seasonal change that the residents of Longmen have come to cherish.
As the autumn breeze begins to settle over Longmen in September, the average wind speed dips to 2.2 m/s (5 mph), making it one of the calmest months of the year. This gentle wind marks a notable decrease compared to the more lively late spring and early summer months, which enjoy higher speeds of around 3.0 to 3.6 m/s (7 to 8 mph). Following September's tranquility, October welcomes a refreshing increase as the wind picks up to 4.4 m/s (10 mph), indicating a transition towards the more blustery characteristics of the coming months. This pattern illustrates a distinct seasonal rhythm, where the breezy warmth of summer gives way to the soft whispers of autumn, setting the stage for winter's arrival.
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 strikingly different weather patterns, with September being significantly warmer and more humid than January. In September, temperatures range from a minimum of 23°C (73°F) to a scorching maximum of 35°C (95°F), accompanied by frequent rainfall, with precipitation occurring on 22 days and totaling 196 mm (7.7 in). In contrast, January experiences much cooler temperatures, ranging from a chilly minimum of 6°C (44°F) to an average of 18°C (65°F) and a maximum of 28°C (82°F), with minimal rainfall of only 10 mm (0.4 in) over just 3 days. Additionally, humidity levels are lower in January at 66%, compared to the high humidity of 78% seen in September. For more details, you can visit Longmen weather in January.
September and February present stark contrasts in weather. September boasts higher temperatures, with a minimum of 23°C (73°F) and an average of 28°C (83°F), peaking at 35°C (95°F). It also experiences significant rainfall, receiving 196 mm (7.7 in) over 22 days, contributing to a humid atmosphere with 78% humidity. In contrast, February features much cooler temperatures, ranging from a minimum of 5°C (41°F) to an average of 19°C (66°F), and reaching a maximum of 32°C (89°F). The month sees minimal precipitation, totaling just 38 mm (1.5 in) on only 5 days and maintaining a lower humidity of 71%. For specifications on February weather, you can visit Longmen weather in February.
In September, the weather is notably warmer and more humid, with average temperatures around 28°C (83°F) and a high of 35°C (95°F). There’s significant rainfall, totaling 196 mm (7.7 in) over 22 days, making it a particularly wet month with humidity levels at 78%. In contrast, March experiences milder temperatures, with lows of 12°C (54°F) and an average of 23°C (74°F), while still reaching a maximum of 35°C (96°F). Precipitation in March is much less, at just 36 mm (1.4 in) over 8 days, and humidity is slightly lower at 73%. For those looking to explore the climate in detail, more information can be found on Longmen weather in March.
September and April exhibit notable differences in weather patterns. September tends to be warmer, with average temperatures ranging from 23°C (73°F) to a peak of 35°C (95°F), while April has a more moderate range, featuring minimums of 12°C (54°F) and an average of 25°C (77°F). Precipitation is more prevalent in September, with 196 mm (7.7 in) over 22 days, compared to April's 94 mm (3.7 in) over just 13 days. Additionally, humidity levels are slightly higher in September at 78%, compared to April's 71%. For more detailed information on April weather, you can refer to this link: Longmen weather in April.
In comparing the weather between September and May, both months feature similar average temperatures of 28°C (83°F), making them relatively comfortable in that aspect. However, September tends to be warmer overall, with maximum temperatures reaching up to 35°C (95°F), while May can peak at a hotter 38°C (101°F). Precipitation levels also differ; September experiences heavier rainfall with 196 mm (7.7 in) over 22 days, compared to May's 141 mm (5.6 in) across 17 days. Humidity is slightly higher in September at 78%, compared to 76% in May. For more details on the weather in May, you can check Longmen weather in May.
In comparing the weather between September and June, we see that June features slightly warmer temperatures with an average of 30°C (86°F) and a maximum reaching up to 38°C (101°F), compared to September's average of 28°C (83°F) and a maximum of 35°C (95°F). Interestingly, September experiences more precipitation at 196 mm (7.7 in) over 22 days, while June has 176 mm (6.9 in) spread across 16 days. Humidity levels are similar, with September at 78% and June slightly higher at 79%. For more details on June weather, visit Longmen weather in June.
In September, temperatures tend to be slightly cooler than in July, with a minimum of 23°C (73°F) and an average of 28°C (83°F), compared to July's minimum of 25°C (77°F) and average of 30°C (86°F). However, July experiences higher maximum temperatures, peaking at 40°C (104°F) compared to September's maximum of 35°C (95°F). Both months see substantial rainfall, but September averages 196 mm (7.7 in) over 22 days, while July has a slightly higher total of 201 mm (7.9 in) over 20 days. Additionally, humidity levels are more elevated in July at 86%, compared to September’s 78%. For more specific details on July weather in Longmen, you can visit Longmen weather in July.
In comparing the weather between August and September, we see a slight decrease in both temperature and humidity. August features a minimum temperature of 24°C (76°F) and an average of 29°C (84°F), while September's minimum drops to 23°C (73°F) with an average of 28°C (83°F). Both months experience the same maximum temperature of 35°C (95°F) in September compared to 35°C (96°F) in August. However, August is marked by significantly higher precipitation, recording 318 mm (12.5 in) over 25 days, compared to September's 196 mm (7.7 in) over 22 days. The humidity levels also reflect this trend, averaging 86% in August versus 78% in September. For a detailed look at August weather, you can visit Longmen weather in August.
In September, the weather is characterized by higher temperatures and humidity, with minimums around 23°C (73°F) and maximums reaching up to 35°C (95°F). This month also sees significant rainfall, totaling 196 mm (7.7 in) over 22 days. In contrast, October brings a noticeable drop in temperature, with minimums lowering to 17°C (63°F) and a slightly cooler average of 26°C (78°F). Additionally, precipitation decreases to 141 mm (5.5 in) over just 14 days, and humidity levels also drop to 72%. This transition reflects the gradual shift from the hot, humid conditions of late summer to a more temperate fall climate. For more detailed weather information, you can check Longmen weather in October.
In September, temperatures are significantly warmer, with a minimum of 23°C (73°F) and an average of 28°C (83°F), peaking at 35°C (95°F). The month is also marked by high humidity at 78% and frequent rainfall, totaling 196 mm (7.7 in) spread over 22 days. In contrast, November sees a much cooler climate, with temperatures dropping to a minimum of 12°C (54°F) and averaging 23°C (74°F), reaching a maximum of 31°C (88°F). Precipitation in November is markedly less, at just 26 mm (1.0 in) over 4 days, and humidity decreases to 69%. For more details on November weather, visit Longmen weather in November.
September and December weather exhibit stark contrasts in temperature and precipitation. In September, the average temperature peaks at 28°C (83°F), with maximums reaching up to 35°C (95°F), while humidity remains high at 78%. This month is also characterized by significant rainfall, with 196 mm (7.7 in) falling over 22 days. In contrast, December experiences much cooler temperatures, averaging 19°C (66°F) and only reaching a maximum of 29°C (84°F), with a notable drop in rainfall to just 13 mm (0.5 in) over 3 days. The humidity decreases slightly to 70%, making December a much drier and cooler month overall. For further details, you can check Longmen weather in December.
As September rolls in, Longmen experiences a notable shift in its weather, marked by warm temperatures and increased humidity that can make the air feel quite sultry. With the mercury frequently reaching highs around 35°C and a consistent average of 28°C, this month is often hotter than the preceding summer months. However, what sets September apart is the significant precipitation, with rain gracing the region on 22 days, leading to an accumulation of nearly 196 mm. This is a stark contrast to the drier streaks of the summer, as autumn begins to emerge. For those seeking detailed insights into the changing climate patterns, explore Longmen Climate.