Last updated: August 21, 2025
In September, Longquan, China experiences a mild transition into autumn, with daytime temperatures peaking at a comfortable 28°C (83°F) and an average of 15°C (60°F). The evenings can be crisp, dipping down to a refreshing 1°C (34°F). This month sees about 140 mm (5.5 in) of rain spread over 12 days, contributing to a significant humidity level of 85%. Travelers should prepare for the variable weather, making it an ideal time to enjoy the lush landscapes that thrive in these conditions.
In September, Longquan, China experiences a welcome transition as temperatures begin to cool from the sweltering summer heat. With a minimum temperature of 1°C (34°F) and a comfortable average of 15°C (60°F), the weather is marked by crispness in the air. The maximum temperature reaches a pleasant 28°C (83°F), making this month ideal for outdoor activities. Compared to the scorching highs of July and August, September provides a moderate climate that encourages exploration and enjoyment of the stunning natural scenery. As the month progresses, the gradual decline in temperatures hints at the approaching autumn, setting the stage for a picturesque seasonal change.
In September, Longquan experiences a notable shift in weather patterns, characterized by a precipitation total of 140 mm (5.5 in) over 12 days of rainfall. This marks a decrease from the peak wetness of August, which sees a staggering 209 mm (8.2 in) across 17 days. However, September's rainfall still represents a significant contribution to the region's annual totals, bridging the transition from the humid summer months to the drier autumn season. As summer recedes, the overall precipitation begins to drop, culminating in an October that typically reflects a stark contrast with just 27 mm (1.0 in), showcasing the distinctive seasonal rhythms of Longquan's climate.
September in Longquan, China, experiences a notable continuation of summer's humidity, with levels peaking at 85%. Following the tropical August, which recorded an even higher 87% humidity, September maintains a slightly drier atmosphere yet still feels quite muggy. The trend shows a gradual decline from July’s peak of 84% as autumn approaches, leading to more comfortable conditions in October, which drops to 80%. Overall, while humidity levels remain elevated during this transition month, the gradual decrease hints at the impending shift to a drier fall season.
In September, Longquan, China, experiences a UV Index of 6, categorizing the exposure as high with a burn time of 25 minutes. This marks a slight decrease from the intense levels seen in the previous summer months, where UV Index values hit 9 in both June and July. As the transition into fall begins, September's weather still calls for sun protection, but it offers a reprieve compared to the peak summer intensity. Notably, following September, the UV Index is set to drop to 4 in October, indicating that the season is shifting towards milder UV exposure. For those looking to stay informed on UV levels year-round, refer to the detailed forecasts at Longquan UV Index.
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As summer transitions to autumn in Longquan, China, September brings a delightful 273 hours of sunshine, showcasing the tail end of the sunny season. This month follows the peak of July, which basks in an impressive 326 hours of sunlight, while still outshining the earlier months of the year. The gradual decline from July through September hints at the inevitable approach of cooler weather, yet the sun remains generous compared to the winter months, where hours dip to around 180 to 252. With sunlight beginning to wane, September serves as a beautiful bridge between the vitality of summer and the crispness of fall, inviting residents and visitors alike to savor the lingering warmth before the colder days ahead.
September in Longquan, China, presents a moderate likelihood of sunny weather, with a 40% chance of sunshine gracing the city. This marks a slight improvement from the sultry summer months, where the chances dip significantly to 27% in July and 33% in August. As autumn approaches, the chances of sun begin to trend upward again, with October rebounding to 58%. While September may not boast the highest probabilities for clear skies, it serves as a transitional period, hinting at a return to sunnier days as the year progresses. Overall, expect a blend of both sunny and cloudy moments as the season shifts.
In Longquan, China, the daylight duration sees a noticeable shift as the seasons change, reflecting the rhythms of nature. As September arrives, the days begin to shorten, providing 12 hours of daylight—a subtle decline from the peak of 15 hours enjoyed in the summer months of June and July. This transition marks a gentle retreat from the long, sunlit days of summer, leading into the cozy ambiance of autumn. As daylight wanes in October, dropping to 10 hours, it paves the way for the shorter days of winter, where November and December will see just 9 and 8 hours of light, respectively. This gradual ebb and flow of sunlight not only affects daily life in Longquan but also hints at the impending seasonal changes ahead.
In September, Longquan experiences a gentle breeze with an average wind speed of 2.7 m/s (6 mph). This transitional month marks a return to calmer winds, reminiscent of the lighter gales in June and July, when the speeds dipped to their seasonal lows of 2.6 m/s and 2.4 m/s respectively. With the winds picking up slightly in October to 3.0 m/s (7 mph), it suggests a gradual shift toward more robust autumnal breezes. Overall, September's wind patterns signify a blend of the summer's warmer, milder days while hinting at the briskness to come, making it a perfectly balanced month for enjoying the outdoors.
Weather in Longquan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Longquan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, temperatures range from a chilly 1°C (34°F) at night to a warm 28°C (83°F) during the day, with an average of 15°C (60°F). This month experiences considerable rainfall, accumulating 140 mm (5.5 in) over about 12 days, while humidity levels hover around 85%, creating a somewhat muggy atmosphere.
In stark contrast, January is characterized by frigid temperatures, with lows plummeting to -37°C (-34°F) and an average temperature of -19°C (-1°F). Even during the day, highs reach only -2°C (28°F). Rainfall is minimal, totaling just 6 mm (0.2 in) over two days, and humidity decreases to 75%, resulting in a much drier, yet bone-chilling environment. For more details on January weather, you can visit Longquan weather in January.
September weather is characterized by a significant temperature range, with minimums around 1°C (34°F), averages reaching 15°C (60°F), and maximums soaring to 28°C (83°F). This month sees substantial precipitation, totaling 140 mm (5.5 in) over about 12 days, along with high humidity levels of 85%. In contrast, February presents a starkly different climate, with frigid temperatures ranging from a minimum of -34°C (-29°F) to an average of -14°C (7°F) and maximums only reaching 8°C (47°F). February experiences much less precipitation, totaling only 8 mm (0.3 in) across 2 days, and a lower humidity of 70%. For a detailed look at February weather, check out Longquan weather in February.
September and March present stark contrasts in weather conditions. In September, temperatures range from a chilly 1°C (34°F) at night to a pleasant 28°C (83°F) during the day, with an average of 15°C (60°F). This month also sees significant rainfall, totaling 140 mm (5.5 in) over approximately 12 days, accompanied by high humidity at 85%. In contrast, March experiences much colder conditions, with temperatures dipping as low as -27°C (-17°F) and averaging -3°C (27°F), though daytime highs can reach 19°C (66°F). Precipitation is minimal in March, with only 19 mm (0.7 in) occurring over 5 days and a lower humidity of 63%. For more detailed insights, you can visit Longquan weather in March.
September and April showcase distinct differences in weather patterns. In September, temperatures range from a chilly 1°C (34°F) at night to a warm 28°C (83°F) during the day, making it a transitional month as summer begins to wane. The average temperature rests at a mild 15°C (60°F), accompanied by frequent rain, totaling 140 mm (5.5 in) over about 12 days, and a high humidity level of 85%. In contrast, April tends to be cooler, with minimum temperatures dropping to -8°C (18°F) and average daytime highs reaching 26°C (79°F). Despite having a similar maximum temperature as September, April's overall average is lower at 7°C (46°F) and experiences significantly less rainfall, only about 33 mm (1.3 in) over just 6 days, along with lower humidity at 59%. For a detailed look at April's weather, visit Longquan weather in April.
When comparing the weather in September and May, both months exhibit a minimum temperature of 1°C (34°F) and an average temperature around 15°C (60°F). However, September tends to be warmer during the day, with a maximum temperature reaching 28°C (83°F), while in May, it can spike to 31°C (89°F). Precipitation levels are higher in September, with 140 mm (5.5 in) over 12 days, compared to May, which sees 83 mm (3.3 in) across 10 days. Additionally, humidity is notably higher in September at 85%, compared to May's more comfortable 61%. For a closer look, check out Longquan weather in May.
September and June present contrasting weather patterns. In September, temperatures range from a chilly minimum of 1°C (34°F) to a warm maximum of 28°C (83°F), with an average of 15°C (60°F). The month sees significant precipitation, totaling 140 mm (5.5 in) over about 12 days, accompanied by high humidity at 85%. In contrast, June boasts warmer conditions, with temperatures spanning from a minimum of 6°C (43°F) to a sweltering maximum of 36°C (97°F) and an average of 19°C (67°F). Although June receives slightly less precipitation at 120 mm (4.7 in) over 15 days, the humidity remains relatively lower at 79%. For more detailed information regarding June weather, you can visit Longquan weather in June.
In comparing the weather between September and July, notable differences emerge in temperature and precipitation. September experiences a much wider temperature range, with a minimum of 1°C (34°F) and a maximum of 28°C (83°F), leading to a cooler average of 15°C (60°F). In contrast, July boasts milder conditions, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 34°C (94°F), resulting in a warmer average of 24°C (75°F). Additionally, September sees an average of 140 mm (5.5 in) of precipitation over 12 days, while July has a higher total of 185 mm (7.3 in) spread across 16 days, indicating a slightly wetter month. Both months exhibit high humidity, with September slightly higher at 85% compared to July’s 84%. For a more detailed insight into July weather, check Longquan weather in July.
In comparing the weather between September and August, September experiences cooler temperatures, with a minimum of 1°C and an average of 15°C, whereas August is warmer, ranging from a minimum of 7°C to an average of 21°C. Maximum temperatures in August can reach up to 31°C, significantly higher than September's maximum of 28°C. Additionally, September sees a total precipitation of 140 mm over 12 days, compared to August's 209 mm across 17 days, indicating that August tends to be wetter. Both months maintain high humidity levels, with September at 85% and August slightly higher at 87%. For a detailed overview, you can check Longquan weather in August.
September and October showcase a marked shift in weather conditions. September experiences milder temperatures, with a minimum of 1°C (34°F) and an average of 15°C (60°F), peaking at a comfortable 28°C (83°F). However, it also brings considerable precipitation, totaling 140 mm (5.5 in) over 12 days, with high humidity levels at 85%. In contrast, October sees a significant drop in average temperature, hitting a minimum of -8°C (18°F) and averaging 6°C (44°F), while still reaching a maximum of 28°C (82°F) on warmer days. Rainfall decreases dramatically to 27 mm (1.0 in) over just 6 days, accompanied by slightly lower humidity at 80%. For more details on October weather specifics, you can visit Longquan weather in October.
September and November weather present a striking contrast in temperature and precipitation patterns. In September, temperatures range from a mild minimum of 1°C (34°F) to a warm maximum of 28°C (83°F), with an average of 15°C (60°F). The month experiences significant rainfall, accumulating 140 mm (5.5 inches) over about 12 days, all while maintaining a high humidity level of 85%. In stark contrast, November sees a dramatic drop in temperatures, with a minimum of -24°C (-10°F), an average of -5°C (24°F), and a maximum of only 14°C (57°F). Precipitation decreases substantially to just 26 mm (1.0 inch) over 4 days, and humidity levels also drop to 61%. For a detailed overview of November weather, you can refer to Longquan weather in November.
In September, the weather is significantly milder, with temperatures ranging from a chilly 1°C (34°F) at night to a warm average of 15°C (60°F) during the day, reaching highs of 28°C (83°F). The month also sees considerable rainfall, with precipitation totaling 140 mm (5.5 in) over 12 days, and high humidity levels at 85%. In contrast, December brings an entirely different climate, characterized by much colder temperatures that can drop as low as -30°C (-23°F) at night. The average temperature hovers around -16°C (3°F), with maximum daytime temperatures only reaching 7°C (45°F). Precipitation is minimal in December, totaling just 11 mm (0.4 in) over 2 days, and the humidity drops to a more comfortable 60%. For more detailed information, you can visit Longquan weather in December.
As September unfolds in Longquan, the weather presents a unique transition, showcasing a blend of warm days and cooler nights that distinguish it from the preceding summer months. With an average temperature that dips significantly, September brings a refreshing relief from the heat, while still allowing for intermittent warm spells. However, increased humidity and notable rainfall mark the month, resulting in about half the month experiencing precipitation. This combination of moderate temperatures and heightened moisture sets September apart as a time of change, enhancing the landscape’s vibrancy. For more detailed insights into these shifts, visit Longquan Climate.