Last updated: August 21, 2025
In September, Guilin, China experiences warm and humid weather, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 38°C (101°F), contributing to a pleasant average of 27°C (81°F). While the month offers plenty of warmth, it also brings about 93 mm (3.6 in) of rainfall over approximately 11 days, fostering the lush landscapes for which Guilin is renowned. The humidity levels hover around 63%, creating a tropical ambiance that enhances the region’s natural beauty. Visitors can expect a blend of sunny days interspersed with refreshing rain, perfect for exploring the stunning scenery.
In September, Guilin experiences a transition as summer begins to fade, bringing mildly warm temperatures that create an inviting atmosphere for exploration. With minimums around 18°C (65°F) and daily averages reaching 27°C (81°F), visitors can enjoy comfortable weather while embracing the stunning landscapes that define this region. The highs peak at an impressive 38°C (101°F), mirroring the lingering summer heat but often accompanied by refreshing breezes in the evenings. As the month progresses, this blend of warmth and coolness makes September an ideal time for outdoor activities, allowing travelers to fully appreciate Guilin's enchanting scenery without the sweltering intensity of the peak summer months.
In September, Guilin experiences a shift in its precipitation patterns, with an average rainfall of 93 mm (3.6 in) spread over approximately 11 days. This marks a noticeable decline from the heavy showers of the summer months, particularly July and June, where the rainfall peaked at 220 mm (8.7 in) and 323 mm (12.7 in) respectively. As autumn approaches, the weather becomes more temperate, leading to a reduction in both overall precipitation and the number of rainy days. This trend sets the stage for October's similarly light rains, allowing for clearer skies and a refreshing change in the landscape, while still providing enough moisture to preserve the lush greenery that Guilin is famed for.
In Guilin, China, the humidity throughout the year showcases a distinct seasonal trend. Starting from January with a moderate 62%, humidity begins to rise, peaking in the sweltering summer months of July and August at an impressive 89% and 87%, respectively. This high humidity level creates a muggy atmosphere, particularly during the lush greenery of late spring and summer. However, as September arrives, there’s a refreshing dip to 63%, suggesting a shift towards drier conditions as the region transitions into autumn. This decline sets the stage for the cooler, crisp months ahead, as October follows closely with an even lower humidity level of 59%. Overall, the humidity in Guilin fluctuates considerably, reflecting the area's climate change throughout the seasons.
As September rolls into Guilin, China, the UV Index settles at 11, maintaining its status within the extreme exposure category. This slight decline from the summer's peak of 13 still poses significant risk, with a burn time of just 10 minutes for unprotected skin. Throughout the year, Guilin experiences shifting UV levels, starting at 7 in January and climbing sharply to a seasonal high of 13 in the months of May, July, and August. The trend reveals a pattern of increasing UV intensity as the year progresses, peaking during the summer months before tapering off in the fall. If you’re planning outdoor activities, it's crucial to stay protected even in September by checking the full details on the Guilin UV Index.
UV Risk Categories
September in Guilin, China, continues the delightful trend of abundant sunshine that peaks in the summer months. After an impressive 307 hours of sunlight in August, September maintains a robust 285 hours, offering a warm welcome as autumn approaches. This month, with its lingering warmth, stands out as a perfect time for exploration, perfectly bridging the vibrant energy of summer and the serene beauty of fall. While the amount of sunshine gradually begins to dip into the following months, like October's 244 hours, September remains a stellar choice for basking in the natural beauty of Guilin's picturesque landscapes. With the sun shining generously, the breathtaking karst mountains and tranquil rivers are at their most captivating, inviting both adventure seekers and relaxation enthusiasts alike.
In September, Guilin, China, offers a notable 49% chance of sunny weather, making it one of the more favorable months for those seeking sunshine. This marks a significant increase from the lower percentages observed in the summer months of July and August, which show only 35% and 21%, respectively. As the transition into autumn occurs, September emerges as a bright spot in the yearly weather pattern, maintaining a similar chance of sunshine as January and December. This trend suggests that while the summer months may be variable, early autumn in Guilin presents a promising opportunity for enjoying the outdoors under the sun.
In Guilin, China, the transition into September marks the gradual shift from the long, sun-kissed days of summer to the crispness of autumn. Throughout the month, daylight lingers for an average of 12 hours, a fitting balance as the region begins to cool down. Following the peak of 13 hours during the vibrant summer months of May through August, September’s daylight duration reflects a gentle tapering, inviting locals and visitors alike to embrace the changing seasons. This rhythmic ebb and flow of daylight not only accentuates the natural beauty of Guilin but also offers ample opportunity for exploration and outdoor adventures before the days become shorter in October and November.
As summer transitions to autumn in Guilin, China, September brings a gentle breeze, with an average wind speed of just 1.5 m/s (3 mph), marking the calmest winds of the year. This softening of the air embraces the picturesque landscape, allowing the iconic karst formations to be shrouded in a serene stillness. Following the lively summer months, where winds provided a refreshing escape, September’s tranquility sets the stage for the more invigorating gusts that return in October, reaching 3.3 m/s (7 mph). This notable increase hints at the seasonal shifts to come, framing a picturesque backdrop for the onset of autumn, as the winds slowly begin to pick up in pace, all while maintaining the enchanting charm that Guilin is known for.
Weather in Guilin varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Guilin, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present strikingly different weather conditions. In September, the temperatures range from a minimum of 18°C (65°F) to a scorching maximum of 38°C (101°F), with an average of 27°C (81°F) and notable humidity at 63%. The month also sees about 93 mm (3.6 in) of precipitation over 11 days. In contrast, January offers a much cooler climate with temperatures dipping as low as -1°C (31°F) and peaking at 25°C (77°F), averaging around 10°C (50°F). While the precipitation is slightly less at 82 mm (3.2 in), it also occurs over 11 days, with humidity at a similar 62%. This seasonal shift highlights the transition from warm, humid late summer to the crisp, cooler winter months. For more detailed information, you can check Guilin weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a mild 18°C (65°F) at night to a sizzling maximum of 38°C (101°F) during the day, with an average temperature of 27°C (81°F). The month sees about 93 mm (3.6 in) of precipitation over approximately 11 days, combined with a humidity of 63%. In contrast, February experiences a much cooler climate, with temperatures dipping to a minimum of -1°C (30°F) and averaging only 11°C (53°F) while peaking at 28°C (82°F). Despite having more precipitation at 120 mm (4.7 in) over 14 days, the humidity rises slightly to 66%. For a more detailed understanding of February weather, check out Guilin weather in February.
In comparing the weather between September and March, September typically offers warmer temperatures, ranging from a minimum of 18°C (65°F) to a scorching maximum of 38°C (101°F), with an average temperature of 27°C (81°F). In contrast, March presents cooler conditions, with temperatures spanning from a minimum of 6°C (43°F) to a maximum of 30°C (86°F), and an average of 16°C (61°F). Additionally, September experiences less precipitation, totaling 93 mm (3.6 in) across 11 days, while March is significantly wetter, accumulating 301 mm (11.8 in) over 23 days. The humidity levels are slightly elevated in March at 73%, compared to September's 63%. For further details on weather specifics, you can check Guilin weather in March.
When comparing the weather in September and April, notable differences emerge in both temperature and precipitation. September shows warmer temperatures, averaging 27°C (81°F) with a maximum of 38°C (101°F), while April is cooler with an average temperature of 20°C (68°F) and a maximum of 31°C (89°F). However, April experiences significantly higher precipitation, with 237 mm (9.3 in) over 21 days, compared to September's 93 mm (3.6 in) over just 11 days. Additionally, humidity levels are slightly higher in April at 70%, versus September's 63%. For a more detailed look at April's climate, you can refer to Guilin weather in April.
When comparing the weather in September and May, notable differences emerge. September usually sees warmer temperatures, with averages around 27°C (81°F) and highs reaching up to 38°C (101°F), while May is milder, averaging 24°C (75°F) with maximums of 34°C (94°F). However, May experiences significantly higher precipitation, totaling 257 mm (10.1 in) over 23 days, compared to September's 93 mm (3.6 in) over just 11 days. Additionally, humidity levels are generally higher in May at 84%, compared to September’s 63%. For more detailed insights, check out Guilin weather in May.
In comparing the weather between September and June, both months exhibit a similar minimum temperature of 18°C (65°F) and an average temperature of around 27°C (81°F). However, September generally experiences higher maximum temperatures, reaching up to 38°C (101°F), compared to June's maximum of 34°C (94°F). Precipitation levels are significantly different, with June receiving 323 mm (12.7 in) over 24 days, making it much wetter than September, which has just 93 mm (3.6 in) over 11 days. Additionally, humidity is higher in June at 83%, compared to September's 63%. For a more detailed look at June weather, you can visit Guilin weather in June.
In comparing the weather between September and July, September tends to be slightly cooler, with average temperatures around 27°C (81°F) compared to July's average of 28°C (83°F). However, July experiences higher minimum temperatures, typically starting at 21°C (69°F), versus September's 18°C (65°F). Rainfall is considerably more frequent in July, with 220 mm (8.7 in) over 20 days, while September sees less precipitation at 93 mm (3.6 in) over only 11 days. Additionally, the humidity levels are markedly higher in July at 89%, compared to September's more comfortable 63%. For more details, you can check Guilin weather in July.
When comparing the weather of August and September, September tends to be slightly cooler with an average temperature of 27°C (81°F), compared to August's 28°C (83°F). While both months share similar maximum temperatures reaching 38°C (100°F to 101°F), September features lower minimum temperatures, averaging at 18°C (65°F) as opposed to 21°C (70°F) in August. Additionally, September experiences less precipitation, totaling 93 mm (3.6 in) over 11 days, in contrast to August's higher rainfall of 157 mm (6.2 in) spread across 19 days, creating a more humid atmosphere in August at 87%. For a detailed look at August's weather, visit Guilin weather in August.
September and October display a notable shift in weather patterns. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 38°C (101°F), with an average of 27°C (81°F). The month also sees significant humidity at 63% and experiences 93 mm (3.6 in) of precipitation over 11 days. In contrast, October brings cooler temperatures, with a minimum of 12°C (53°F), an average of 21°C (70°F), and a maximum of 36°C (97°F). The precipitation slightly decreases to 83 mm (3.3 in) over the same number of days, and humidity drops to 59%. For more detailed insights on October weather, you can check out Guilin weather in October.
September and November exhibit notable differences in weather patterns. In September, temperatures are significantly warmer, with averages reaching up to 27°C (81°F) and maximums hitting 38°C (101°F). Humidity is relatively moderate at 63%, and while there is a fair amount of rainfall totaling 93 mm (3.6 in), it occurs over 11 days. In contrast, November sees a cooler climate with average temperatures around 16°C (62°F), a maximum of 29°C (84°F), and a marked drop in minimum temperatures to 7°C (45°F). Precipitation increases slightly to 111 mm (4.4 in) over the same 11 days, accompanied by a slight rise in humidity to 66%. For a more detailed look at weather specifics, check out Guilin weather in November.
In comparing the weather between September and December, a significant shift is evident. September brings warmer temperatures, with an average of 27°C (81°F) and highs reaching up to 38°C (101°F), while December cools down considerably, averaging only 11°C (52°F) and peaking at 26°C (80°F). Precipitation occurs on the same number of days—11—but September experiences heavier rainfall totaling 93 mm (3.6 in), compared to December's lighter 59 mm (2.3 in). Additionally, while humidity is relatively high in both months, it slightly increases in December to 69% from 63% in September. For a more detailed look at December conditions, check out Guilin weather in December.
As September rolls into Guilin, the weather shifts gradually from the sweltering summer heat, offering a delightful blend of warmth and mildness. With average temperatures settling comfortably around 27°C (81°F), the month is marked by occasional rainfall, bringing life and vibrancy to the lush landscapes. While humidity remains at a notable 63%, it’s the mix of cooler evenings and the refreshing rains that distinguish September as a perfect time for exploration. This transitional month lays the groundwork for the pleasantly cooler days ahead, making it a unique experience in the Guilin climate calendar. For more detailed insights into what to expect throughout the year, visit Guilin Climate.