Last updated: August 21, 2025
In September, Dali, China, experiences a blend of warmth and moisture, with daily highs reaching up to 36°C (97°F) and lows averaging around 21°C (71°F). The overall temperature maintains a comfortably warm average of 29°C (84°F), perfect for exploring the scenic landscapes of the region. However, this enchanting month also brings substantial rainfall, with a total precipitation of 186 mm (7.3 in) spread over 20 days, resulting in a humidity level of 75%. Visitors should be prepared for occasional showers amidst the summer-like warmth, creating a unique atmospheric charm that characterizes Dali in September.
In September, Dali basks in a pleasant climate that showcases the transition from summer to autumn. With minimum temperatures averaging 21°C (71°F) and maximums peaking at 36°C (97°F), this month embodies a delightful warmth without the extremes of the peak summer heat. The average temperature hovers comfortably around 29°C (84°F), providing an inviting atmosphere for outdoor activities. As the month progresses, temperatures gradually begin to cool, signaling the approach of autumn and the vibrant changes it will bring to this picturesque region. Overall, September stands out as a remarkable time to experience Dali’s stunning landscapes and cultural richness, all while enjoying its idyllic weather.
In September, Dali, China experiences a significant precipitation of 186 mm (7.3 in) across approximately 20 days, marking a continuation of the wet season that peaks in June and remains elevated throughout the summer months. This notable rainfall, while less than the 278 mm (10.9 in) experienced in August, maintains the lush, vibrant landscapes that characterize the region. As the transition into autumn unfolds, the weather begins to shift, indicating a steady decline in precipitation as October approaches, where rainfall drops to 100 mm (3.9 in). This trend highlights the gradual tapering of the rainy season, providing a picturesque backdrop for visitors drawn to Dali's stunning natural beauty.
In Dali, China, September marks a transition in humidity levels, offering a refreshing reprieve from the peak summer humidity. With an average humidity of 75%, it stands as a notable reduction from the oppressive 88% seen in both July and August. As summer fades, humidity levels begin to decline, approaching the more comfortable conditions of October at 65%. This gradual decrease signals the onset of autumn, inviting visitors to experience Dali's stunning landscapes under an increasingly pleasant atmosphere. The year begins with relatively stable humidity levels, hovering around 64% to 73% from January to April, leading into the warmer months where humidity peaks. Overall, September serves as a pivotal month, bridging the sultry summer and the cooler autumn, making it an optimal time for exploration in this charming region.
In September, Dali, China, experiences a UV Index of 11, categorizing it as an extreme level of exposure, which means a burn can occur in just 10 minutes. This trend aligns with the peak summer months, where UV readings are consistently high, with July and August both recording a UV Index of 13. As the seasons transition, the UV Index begins to decrease, but in September, it remains notably elevated, encouraging residents and visitors alike to take precautions against sun exposure. With the intensity of the sun still formidable, it's essential to plan activities accordingly. For more details on the UV Index throughout the year, check out Dali UV Index.
UV Risk Categories
September in Dali, China, basks in a delightful 270 hours of sunshine, making it one of the sunniest months of the year. Following the peak summer months—where July dazzles with 296 hours and August shines with 274 hours—September maintains a stunning glow, creating a seamless transition into autumn. The region experiences a trend of abundant sunlight from May to September, peaking in the heart of summer before gracefully tapering into October's still generous 264 hours. This consistent brightness not only enhances the breathtaking landscapes of Dali but also invites visitors to immerse themselves in the vibrant culture and stunning natural beauty during the enchanting early autumn days.
September in Dali, China, offers a fairly promising chance of sunny weather, with 45% likelihood of clear skies. This marks a noticeable rise compared to the gloomy months of June and August, where sunshine dwindles to only 11% and 16% respectively. Following a summer of low sun chances, September's weather is a refreshing transition, suggesting that visitors can expect more pleasant days ahead. The trend showcases an intriguing shift as autumn approaches, leading into October with a slightly lower chance of 35% sunshine. Overall, September presents an inviting opportunity for outdoor activities, with the weather becoming increasingly favorable before the winter months return.
In September, Dali, China, enjoys a delightful 12 hours of daylight, mirroring the sunlit bounty of April and August. As summer gives way to fall, the daylight duration begins to taper, transitioning from the peak of 13 hours in the vibrant summer months of May through July. This gradual shift highlights a broader trend in Dali's seasonal rhythm, where daylight lingers longer during the warmer months and begins to recede as the year draws to a close. The balanced 12-hour days of September create an ideal atmosphere for exploration, allowing ample time to soak in the stunning landscapes and rich cultural tapestry that this picturesque region offers.
As the summer fades into autumn in Dali, China, the September wind provides a gentle shift, with an average wind speed dipping to 1.6 m/s (4 mph). This marks the lowest point of the year, reflecting a serene, almost tranquil atmosphere that accompanies the close of the warm months. Throughout summer, the winds were generally mild, but September’s softness hints at the approaching chill of October, which typically experiences a noticeable increase in wind speed to 3.7 m/s (8 mph). This subtle transition from summer's embrace to autumn's breath not only paints a beautiful picture of the changing seasons but also invites locals and travelers alike to savor the calm before the gustier days ahead.
Weather in Dali varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Dali, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit strikingly different weather patterns. In September, temperatures range from a minimum of 21°C (71°F) to a scorching maximum of 36°C (97°F), with an average of 29°C (84°F). This month is also characterized by high humidity at 75% and considerable precipitation, totaling 186 mm (7.3 in) over 20 days. In contrast, January presents much cooler weather, with temperatures ranging from a chilly minimum of 4°C (39°F) to a pleasant maximum of 28°C (83°F), and an average of 16°C (61°F). Furthermore, January sees significantly less precipitation at just 27 mm (1.0 in) across 4 days, accompanied by lower humidity levels at 64%. For more detailed information, visit Dali weather in January.
September and February exhibit contrasting weather characteristics. In September, temperatures are significantly higher, with a minimum of 21°C (71°F) and an average of 29°C (84°F), peaking at 36°C (97°F). The month experiences considerable rainfall, totaling 186 mm (7.3 in) over about 20 days, coupled with a humidity level of 75%. In stark contrast, February features much cooler temperatures, ranging from a minimum of 5°C (41°F) to an average of 17°C (62°F) and a maximum of 30°C (86°F). Precipitation is also lighter, with only 65 mm (2.6 in) recorded over 9 days and a slightly lower humidity of 68%. For more details on February weather, you can check Dali weather in February.
September weather is characterized by warmer temperatures, with a minimum of 21°C (71°F) and an average high reaching 36°C (97°F). In contrast, March experiences cooler temperatures, with a minimum of 10°C (50°F) and an average high of 32°C (90°F). Additionally, September sees higher precipitation levels at 186 mm (7.3 in) over 20 days, compared to March's 108 mm (4.2 in) over 15 days. Despite the slight difference in humidity, with September at 75% and March at 73%, both months maintain a fairly humid environment. For more details about March weather, visit Dali weather in March.
September and April present distinct weather patterns, highlighting the transition between summer and autumn. In September, temperatures are notably warmer, with averages around 29°C (84°F) and peaks reaching up to 36°C (97°F), while April sees milder conditions with an average of 23°C (74°F) and highs of 33°C (92°F). While both months experience considerable rainfall, September is wetter, accumulating 186 mm (7.3 in) over about 20 days compared to April's 149 mm (5.9 in) across 14 days. Humidity remains fairly high in both months, with September at 75% and April slightly lower at 71%. For more detailed insights, check out Dali weather in April.
In comparing the weather of September and May, we notice some intriguing similarities and differences. Both months experience maximum temperatures reaching up to 36°C (97°F), but September is generally warmer with an average of 29°C (84°F), compared to May's 27°C (81°F). Rainfall also plays a significant role in both months, with September receiving 186 mm (7.3 in) of precipitation over 20 days, while May sees slightly higher precipitation at 196 mm (7.7 in) over 19 days. Humidity levels are quite similar, with September at 75% and May rising to 79%, adding to the feeling of tropical warmth. For more detailed insights about the weather specifically in May, you can explore Dali weather in May.
In comparing the weather between September and June, both months exhibit warm average temperatures, with September having a minimum of 21°C (71°F) and June starting slightly warmer at a minimum of 24°C (75°F). The average temperatures are similar, hovering around 29°C (84°F) in September and 29°C (85°F) in June. However, June typically experiences a slightly higher maximum temperature of 37°C (98°F) compared to September's peak of 36°C (97°F).
Precipitation levels also differ significantly; June is typically much wetter, with a total of 326 mm (12.8 in) over 23 days, whereas September sees 186 mm (7.3 in) spread across 20 days. The humidity levels are comparable but slightly higher in June at 77%, compared to September's 75%. For more detailed insights, you can refer to Dali weather in June.
In September, the weather is characterized by a slightly lower minimum temperature of 21°C (71°F) compared to July's minimum of 25°C (77°F), offering a more comfortable start to the evenings. The average temperature in September is 29°C (84°F), closely trailing behind July's 30°C (86°F), yet it often feels more humid with September's humidity at 75%, compared to a higher 88% in July. Both months experience similar levels of precipitation, with September receiving 186 mm (7.3 in) and July gathering 177 mm (7.0 in), but the rain tends to spread over 20 days in both months, indicating frequent but light showers. For more detailed insights on the climate, check Dali weather in July.
In September, the weather begins to shift slightly as temperatures range from a minimum of 21°C (71°F) to a maximum of 36°C (97°F), with an average temperature of 29°C (84°F). While the humidity remains high at 75%, it is a bit lower compared to August, which experiences higher temperatures with a minimum of 25°C (77°F) and a maximum of 38°C (101°F), plus a similar average of 29°C (85°F). Precipitation also decreases in September to 186 mm (7.3 in) over 20 days, compared to August's 278 mm (10.9 in) over 23 days. For more detailed information, check out Dali weather in August.
In September, the weather is characterized by warmer temperatures, with a minimum of 21°C (71°F), an average of 29°C (84°F), and a maximum reaching 36°C (97°F). This month also sees more precipitation, totaling 186 mm (7.3 in) over 20 days, contributing to a higher humidity level of 75%. In contrast, October brings cooler temperatures, featuring a minimum of 17°C (63°F), an average of 25°C (77°F), and a maximum of 35°C (96°F). The rainfall decreases significantly to 100 mm (3.9 in) over just 9 days, resulting in a lower humidity of 65%. This transition from September to October reflects a shift towards milder weather. For more detailed information, visit Dali weather in October.
In September, the weather is notably warmer with temperatures ranging from a minimum of 21°C (71°F) to a maximum of 36°C (97°F), accompanied by high humidity levels at 75%. The month sees significant rainfall, totaling 186 mm (7.3 inches) over about 20 days. In contrast, November experiences a much cooler climate, with temperatures dropping to a minimum of 12°C (53°F) and peaking at 31°C (88°F) on average. Precipitation decreases dramatically to only 22 mm (0.8 inches) over just 5 days, and humidity levels also lower to 64%. For more details, you can refer to Dali weather in November.
The weather in September is characterized by significantly warmer temperatures, with an average high of 29°C (84°F) and maximums soaring up to 36°C (97°F). This month also sees considerable precipitation, totaling 186 mm (7.3 in) over approximately 20 days, alongside high humidity levels around 75%. In contrast, December experiences much cooler conditions, with temperatures ranging from a minimum of 7°C (45°F) to an average of 17°C (62°F) and a maximum of 29°C (84°F). Precipitation drops dramatically to just 19 mm (0.8 in) over 3 days, and humidity decreases slightly to 69%. For more detailed insights, you can visit Dali weather in December.
September in Dali ushers in a transition marked by warm temperatures, with average highs reaching a balmy 29°C (84°F) and a noticeable increase in rainfall, making it one of the wetter months of the year. Compared to the peak summer months, humidity levels rise, creating a more humid atmosphere that can feel quite muggy. With precipitation on approximately 20 days, the landscape becomes vibrantly lush, offering a stark contrast to the drier conditions seen earlier in the summer. This unique blend of warmth and wetness sets September apart, making it a captivating time to explore the region’s rich natural beauty. For more detailed insights, check out Dali Climate.