Last updated: August 21, 2025
Guilin, China, experiences a dynamic September, characterized by a maximum temperature reaching up to 37°C (99°F), contrasting with a more temperate average of 24°C (76°F). As the month unfolds, temperatures can dip to a refreshing minimum of 13°C (56°F), offering a pleasant respite during cooler nights. Rainfall is notable, with a total precipitation of 98 mm (3.9 in) across approximately 10 days, contributing to the region's lush landscapes. With a relative humidity of 72%, the air maintains a warm and somewhat tropical feel, enriching both the scenery and the experience of this captivating destination.
As September unfolds in Guilin, China, temperatures begin to show a welcoming transition from the intense heat of summer. The average daily temperature hovers around 24°C (76°F), with mild minimums of 13°C (56°F) and maximums peaking at a cozy 37°C (99°F). This month strikes a balance, offering warm days for outdoor exploration while cooling significantly during the evenings. Compared to August, which is marked by sweltering extremes, September is a refreshing shift, hinting at the approaching autumn. Expect picturesque landscapes enriched by the lingering warmth, making it an ideal time for sightseeing amidst the breathtaking karst mountains and serene Li River.
September in Guilin, China, is characterized by a notable transition in precipitation patterns. With an average rainfall of 98 mm (3.9 in) over 10 days, the month represents a shift from the peak summer rains of June, which recorded a staggering 343 mm (13.5 in). This reduction marks the tail end of the heavy monsoon season, as September's precipitation is significantly lighter than the preceding months, yet still substantial compared to the upcoming drier months. The overall trend suggests a gradual tapering of rainfall as the region heads into autumn, highlighting a clear seasonal progression that enthusiasts and residents alike can anticipate in Guilin's rich climatic tapestry.
As summer wanes, September sees a notable decline in humidity levels in Guilin, China, dropping to 72%. This marks a significant shift from the muggy heights of July, which boasts a peak humidity of 91%. While May and June hover around 87%, the transition into autumn brings relief, making September a more comfortable month for outdoor explorations. The consistent high humidity from the earlier months, peaking in April and July, gradually retreats, suggesting a refreshing change that heralds the approach of drier autumn days. This trend not only enhances the experience for visitors but also signifies a seasonal shift in the region's climate.
In Guilin, China, the month of September showcases an impressive UV Index of 11, placing it in the extreme exposure category, with a burn time of just 10 minutes. This trend reflects the high UV levels experienced throughout the summer months, where the UV Index consistently peaked at 12 from May to August. As the year transitions into fall, the UV Index begins to taper off, but September still demands caution for outdoor enthusiasts. With the sun's intensity still formidable, protective measures remain crucial. For those planning to enjoy the beautiful landscapes of Guilin, staying informed about the UV Index can ensure a safe and enjoyable experience. For more details, visit Guilin UV Index.
UV Risk Categories
As autumn approaches, September in Guilin, China basks in a generous 254 hours of sunshine, vibrant yet slightly subdued compared to the dazzling heights of August's 307 hours. This transition marks a shift from the peak summer radiance, evoking a sense of balance as daylight begins to taper off heading into the cooler months. Notably, September's sunshine remains robust, surpassing both July and June, while hinting at the gradual decline characteristic of the season's change. As the lush landscapes of Guilin prepare for fall, the combination of warm days and bright skies creates a picturesque setting, inviting exploration and appreciation of nature's beauty.
In Guilin, China, September stands out as a promising month for those seeking sunny weather, boasting a 53% chance of sunshine. This likelihood marks a notable upswing compared to the summer months, where the chance of sunshine dwindles to its lowest at 17% in July. As the year transitions into fall, the optimism for clearer skies begins to rise, with September exhibiting one of the best chances for sun since January. Following September, the percentage dips again into October at 39%, but those looking to enjoy the picturesque landscapes of Guilin would do well to plan their visit in September when the balance of warm weather and sunshine is at its peak.
In September, Guilin, China enjoys a pleasant balance of 12 hours of daylight, marking a subtle shift from the longer days of summer. As the season transitions into fall, daylight gradually shortens, following the peak of 14 hours experienced in June. While the days may be slightly shorter than the vibrant summer months, the lush landscapes and cooler temperatures make September an ideal time for exploration. This month's daylight duration reflects a trend of decreasing sunlight as the year progresses, with a gradual decline leading into the shorter days of autumn and winter. Visitors can savor this perfect blend of light and nature before the brisk chill sets in.
As September rolls into Guilin, China, the gentle rhythm of the wind begins to shift. With an average speed of 1.7 m/s (4 mph), this month reflects a subtle transition from the lighter breezes of summer, where June and August each saw a cooling 1.5 m/s (3 mph). The winds start to pick up slightly, hinting at the seasonal change ahead. After the gustier July at 2.2 m/s (5 mph), September offers a serene consistency, contributing to the region’s picturesque landscapes while setting the stage for the more invigorating gusts of October. This gentle breeze is ideal for exploring Guilin's stunning scenery, inviting both locals and travelers to embrace the beauty of the season.
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 showcase stark contrasts in weather. In September, temperatures range from a minimum of 13°C (56°F) to a sweltering maximum of 37°C (99°F), with an average of 24°C (76°F). The month experiences 98 mm (3.9 in) of precipitation, spread over about 10 days, with humidity levels hovering around 72%. In contrast, January brings much colder temperatures, with a minimum of -8°C (18°F) and an average of only 5°C (41°F). The maximum temperature reaches 21°C (70°F), while precipitation decreases to 76 mm (3.0 in) over the same number of rainy days. Humidity in January is also lower, at 65%. Overall, while September is characterized by warmth and humidity, January offers a chill with more moderate precipitation. For more details on winter weather, visit Guilin weather in January.
September and February present starkly contrasting weather conditions. In September, temperatures soar with a minimum of 13°C (56°F) and can peak at a sweltering 37°C (99°F), averaging around 24°C (76°F). The month is also marked by significant humidity at 72% and an average of 10 days of rainfall, totaling 98 mm (3.9 in). In contrast, February experiences much cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 24°C (75°F), averaging only 7°C (44°F). While February sees slightly less precipitation at 78 mm (3.1 in) over about 11 days and maintains a humidity of 71%, the overall chill is a notable departure from the warmth of September. For more details on February weather, you can explore Guilin weather in February.
In comparing the weather of September and March, a clear contrast emerges. September boasts warmer temperatures, with average highs reaching 24°C (76°F) and occasionally soaring to a maximum of 37°C (99°F), while March presents a cooler climate with daily averages around 12°C (54°F) and highs peaking at 28°C (83°F). Precipitation is more frequent in March, occurring over 15 days, with a total of 151 mm (5.9 in), compared to September's 10 rainy days and 98 mm (3.9 in) of rainfall. Additionally, March experiences a slightly higher humidity level of 81%, versus September's 72%. For a deeper look at the specifics of March weather, you can check out Guilin weather in March.
In September, the weather typically features warmer temperatures, with a minimum of 13°C (56°F) and an average of 24°C (76°F), peaking at a hot 37°C (99°F). The month experiences moderate rainfall, totaling 98 mm (3.9 in) over about 10 days, and humidity levels hover around 72%. In contrast, April presents a cooler climate, with temperatures ranging from a minimum of 3°C (37°F) to a pleasant average of 17°C (63°F), and a maximum of 32°C (89°F). While April sees slightly higher precipitation at 123 mm (4.9 in) over 12 days, it is characterized by higher humidity levels at 86%. For more details on April weather, refer to Guilin weather in April.
When comparing the weather in September and May, September tends to be warmer with average temperatures reaching 24°C (76°F) and a maximum of 37°C (99°F), while May averages around 22°C (71°F) with a maximum of 35°C (95°F). However, May experiences more rainfall, with total precipitation of 172 mm (6.8 in) over 14 days compared to September's 98 mm (3.9 in) spread over 10 days. Additionally, humidity levels are higher in May at 87%, compared to 72% in September. For a detailed look at the weather specifics in May, you can visit Guilin weather in May.
September and June present distinct weather patterns, each with its unique characteristics. September typically exhibits a temperature range with a minimum of 13°C (56°F) and a maximum of 37°C (99°F), averaging around 24°C (76°F). The month experiences moderate precipitation at 98 mm (3.9 in) over about 10 days, along with a humidity level of 72%. In contrast, June has slightly warmer temperatures, with a minimum of 14°C (57°F) and a maximum of 35°C (95°F), also averaging 24°C (76°F). However, June is significantly wetter, receiving 343 mm (13.5 in) of rain over 18 days, coupled with a higher humidity level of 87%. For more detailed insights, you can check Guilin weather in June.
When comparing the weather in September and July, it's clear there are notable differences. September generally has milder temperatures, with an average of 24°C (76°F), compared to July's warmer average of 28°C (82°F). The higher maximum temperatures in July, reaching up to 39°C (102°F), contrast with September's peak at 37°C (99°F). In terms of precipitation, July is much wetter, receiving 270 mm (10.6 in) over 17 days, while September experiences only 98 mm (3.9 in) across 10 days. Additionally, the humidity is higher in July at 91%, compared to September's 72%. For a closer look at July weather conditions, you can visit Guilin weather in July.
In comparison to August, September experiences slightly cooler temperatures with a minimum of 13°C (56°F), an average of 24°C (76°F), and a maximum of 37°C (99°F). In contrast, August is warmer overall, boasting a minimum of 16°C (62°F), an average of 28°C (83°F), and a maximum reaching 37°C (100°F). Additionally, September sees a decrease in precipitation to 98 mm (3.9 in) over 10 days, compared to August's higher total of 134 mm (5.3 in) over 12 days. Humidity levels are also lower in September at 72%, while August experiences higher humidity at 87%. For a detailed overview of August weather, visit Guilin weather in August.
September and October present a noticeable shift in weather patterns. In September, temperatures range significantly from a minimum of 13°C (56°F) to a scorching maximum of 37°C (99°F), with an average around 24°C (76°F). The month sees considerable rainfall, accumulating to 98 mm (3.9 in) over 10 days, coupled with a humidity level of 72%. In contrast, October experiences cooler conditions, with temperatures dipping to a minimum of 7°C (44°F) and an average of 18°C (65°F), while peaking at 34°C (94°F). Rainfall is reduced to just 34 mm (1.3 in) over 6 days, and humidity slightly increases to 74%. This transition marks October as a month of mild weather and less precipitation, making it a pleasant time of year. For more specifics, you can check Guilin weather in October.
September and November showcase distinct contrasts in weather patterns. In September, temperatures are much warmer, with averages reaching 24°C (76°F) and maximums soaring up to 37°C (99°F), accompanied by a notable 98 mm (3.9 in) of precipitation over about 10 days, with humidity levels around 72%. In stark contrast, November sees cooler weather, where the average drops to 13°C (55°F) and maximums reach 26°C (80°F). Precipitation decreases significantly to 48 mm (1.9 in) over 9 days, accompanied by a higher humidity level of 80%. For more details on weather specifics in November, visit Guilin weather in November.
September and December present stark contrasts in weather. September typically enjoys warmer temperatures, with averages around 24°C (76°F) and highs reaching up to 37°C (99°F). It's characterized by higher humidity at 72% and considerable rainfall, receiving about 98 mm (3.9 in) across approximately 10 days. In contrast, December brings a chill with average temperatures dropping to 7°C (44°F) and minimal highs of 20°C (68°F), while lows can plunge to -4°C (24°F). The month sees less precipitation at 61 mm (2.4 in) over 8 days and a slightly higher humidity level of 78%. For more specific details on December weather, you can visit this link: Guilin weather in December.
September in Guilin presents a delightful transition into autumn, characterized by warmer temperatures compared to the cooler months that precede it. While you might experience occasional rainfall, the overall climate is relatively mild, making it a perfect time for outdoor exploration. The humidity remains moderate, offering a refreshing experience as you enjoy the stunning landscapes. This month stands out from the sweltering heat of summer, providing a more comfortable atmosphere for travelers. To learn more about how September fits into the broader seasonal changes, check out Guilin Climate.