Last updated: August 21, 2025
September in Dali, China offers a delightful yet variable climate, with average temperatures hovering around 19°C (67°F). Expect the maximum to reach a pleasant 27°C (81°F), while the nights can be cool, dipping to a minimum of 11°C (52°F). This month is characterized by high humidity levels of 87%, contributing to a lush, green atmosphere. Rain is frequent, with 26 days witnessing a total precipitation of 173 mm (6.8 in), perfect for embracing the region's natural beauty. Whether you're exploring the stunning landscapes or savoring local culture, September's weather in Dali presents a captivating backdrop for any adventure.
In September, Dali experiences a delightful transition as summer begins to wane and autumn approaches. With minimum temperatures around 11°C (52°F) and averaging 19°C (67°F), the days are pleasantly warm yet comfortable. The maximum temperature reaches up to 27°C (81°F), making it an ideal time for outdoor activities and exploration of the stunning landscapes. Compared to the sweltering highs of summer months, September provides a refreshing mildness, inviting visitors to enjoy the vibrant culture and scenic beauty of Dali without the summer heat. Overall, the month marks a lovely balance, characterized by moderate weather perfect for embracing the charm of this captivating city.
In September, Dali experiences a notable shift in its rainfall patterns, with 173 mm (6.8 in) of precipitation spread over 26 days. This month marks a decline from the torrential downpours seen in the summer, where July and August lead with significant totals of 290 mm and 294 mm respectively. The transition into autumn brings a decrease in both total rainfall and the number of intense rainy days, yet September remains wet, contributing to the lush landscapes characteristic of the region. As the air begins to cool, the steady rains nurture the preparation for the dry months ahead, highlighting the dynamic climate in this picturesque part of China.
In September, Dali experiences a notable drop in humidity from the sweltering peak of 90% in August, settling at 87%. This transition marks a return to slightly more comfortable conditions as autumn approaches. Overall, the humidity levels throughout the year showcase an intriguing pattern: winter months like January and February start off relatively mild, while the summer months see a sharp rise, peaking in July and August. Following September, humidity remains elevated but starts to decline again, signaling a refreshing change with the onset of fall. This ebb and flow not only shapes the climate but also adds to Dali's unique charm as a seasonal destination.
In September, Dali, China experiences a UV Index of 14, placing it in the extreme exposure category, with a burn time of just 10 minutes. This trend of high UV levels continues from the peak of summer, where the index reached a maximum of 15 in May and July. The persistent extreme levels throughout the summer months hint at a pressing need for sun protection as the days grow shorter in autumn. As the situation shifts into October, the UV Index is projected to drop slightly to 12, yet remains a significant concern. Dali's sunny climate, paired with its altitudinal setting, underlines the importance of awareness and protection—check Dali UV Index for updates as you plan your visits.
UV Risk Categories
September in Dali, China, welcomes 284 hours of sunshine, marking a transition into the more mild and enchanting autumn months. Following a vibrant summer, where May and March recorded the highest sunshine with 338 hours, the sunlight begins to gently wane. As the days shorten and temperatures cool, September's hours still reflect a generous glow — surpassing the brightness of both July and October. The steady sunshine invites visitors to enjoy the captivating landscapes before the winter chill sets in, making it an ideal time to explore Dali's rich culture and stunning natural beauty. Overall, this month exemplifies a seamless blend of warmth and tranquility, wrapping up summer while paving the way for the crispness of fall.
When considering the likelihood of sunny weather in September in Dali, China, the statistics reveal a noticeable decline in sunshine compared to earlier months. With only a 17% chance of sun, September stands out as one of the wetter periods of the year, following an already bleak summer characterized by minimal sunshine in June, July, and August. This trend is contrasted by the more favorable conditions seen in the first half of the year, where January through April boast chances of 63% to 77% sunlight. As autumn approaches, travelers should prepare for a mix of clouds and rain, making it prudent to maintain flexibility in outdoor plans.
In September, Dali, China, enjoys a delightful 12 hours of daylight, marking a gentle transition as the days begin to shorten. This month’s daylight duration mirrors that of April and August, creating a sweet spot in the annual cycle where the sun still lingers enough to enjoy the vibrant autumn hues. Following the summer's peak of 13 hours in May, June, and July, September reflects a gradual tapering as daylight begins to recede, paving the way for the cozier, shorter days of fall. As the season shifts, the consistent daylight hours provide the perfect backdrop for outdoor adventures, inviting both locals and travelers to bask in the natural beauty of Dali.
As summer transitions into autumn, September in Dali, China, brings a noticeable shift in the wind. Following the peak summer months, where gusts barely reached 1.4 m/s (3 mph), September's breeze further calms to an average of 1.2 m/s (3 mph), marked by a gentle stillness that envelops the region. This decline in wind speed, consistent with the trend observed since the onset of summer, allows for a more serene experience of Dali's stunning landscape. With each passing month, the winds seem to mirror the relaxed pace of life in this picturesque town, inviting visitors to savor the tranquil beauty of autumn’s approach.
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 stark contrasts in weather characteristics. September experiences mild temperatures with a minimum of 11°C (52°F) and an average of 19°C (67°F), peaking at 27°C (81°F). The month is quite wet, receiving 173 mm (6.8 in) of precipitation over 26 days, accompanied by high humidity levels at 87%. In contrast, January is much colder, with temperatures dropping to a minimum of -1°C (30°F) and averaging 9°C (48°F), while the maximum reaches 21°C (69°F). This winter month is notably drier, with only 22 mm (0.9 in) of precipitation occurring over just 4 days and humidity levels at a more comfortable 58%. For more detailed information on January weather, check out Dali weather in January.
September and February present contrasting weather experiences. In September, temperatures range from a chilly 11°C (52°F) at night to a warm 27°C (81°F) during the day, with an average of 19°C (67°F). This month also sees considerable rainfall, with 173 mm (6.8 in) spread over 26 days and high humidity at 87%, creating a damp atmosphere. Conversely, February is much cooler, with temperatures dipping to 0°C (32°F) at night and reaching a maximum of 23°C (73°F) during the day, averaging around 10°C (51°F). The precipitation in February is significantly lower at 19 mm (0.8 in) over just 5 days, and the humidity decreases to 65%, making for a crisper, drier winter feel. For a more detailed look at February weather, you can check Dali weather in February.
September and March offer distinct weather experiences. September boasts warmer temperatures, with an average of 19°C (67°F) and highs reaching up to 27°C (81°F), while March is cooler, averaging 14°C (57°F) with similar maximums. Humidity is significantly higher in September at 87%, contributing to a more humid atmosphere, whereas March enjoys a much drier feel with only 44% humidity. Additionally, September is marked by frequent rainfall, with 173 mm of precipitation over 26 days, in contrast to March's minimal 23 mm over just 5 days. For more detailed information, you can view Dali weather in March.
In comparing the weather conditions of September and April, significant differences emerge. September experiences a mild temperature range with minimums of 11°C (52°F) and maximums of 27°C (81°F), while April sees a cooler minimum of 4°C (40°F) and a slightly higher maximum of 29°C (84°F). Additionally, September is marked by heavier rainfall totaling 173 mm (6.8 in) over 26 days, contributing to a high humidity level of 87%. In contrast, April is much drier, with only 47 mm (1.9 in) of precipitation falling over just 7 days, resulting in more comfortable humidity levels at 44%. For a detailed outlook on April weather, you can visit Dali weather in April.
September and May exhibit distinct weather patterns, making each month unique. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 27°C (81°F), with an average of 19°C (67°F). This month also sees considerable rainfall, with 173 mm (6.8 in) of precipitation spread over 26 days, contributing to a higher humidity level of 87%. In contrast, May features slightly milder temperatures, with a minimum of 8°C (46°F) and a maximum of 31°C (88°F), maintaining the same average of 19°C (67°F) as September. However, May is characterized by significantly less precipitation at just 55 mm (2.2 in) over 7 days, leading to lower humidity levels of 62%. For more detailed information on May weather, you can visit Dali weather in May.
When comparing the weather in September and June, notable differences emerge. September tends to be slightly cooler, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 27°C (81°F), while June experiences warmer conditions, with averages between 13°C (56°F) and 31°C (88°F). Additionally, September has higher precipitation at 173 mm (6.8 in) over 26 days, compared to June's 127 mm (5.0 in) across 22 days. Humidity levels are somewhat higher in September at 87%, versus 82% in June. For those interested in more details about June weather, you can refer to Dali weather in June.
When comparing the weather in September and July, it's evident that July tends to be warmer and wetter. In July, the minimum temperature is 14°C (57°F), with an average of 20°C (69°F) and a maximum of 30°C (87°F). In contrast, September sees slightly cooler temperatures, ranging from a minimum of 11°C (52°F) to a maximum of 27°C (81°F), with an average of 19°C (67°F). Precipitation is significantly higher in July, with 290 mm (11.4 in) falling over 29 days, compared to September's 173 mm (6.8 in) over 26 days. Additionally, humidity levels are quite comparable, with July at 89% and September at 87%. For more details about July, you can refer to Dali weather in July.
In comparing the weather between August and September, it's evident that September tends to be slightly cooler, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 27°C (81°F), compared to August's minimum of 13°C (56°F) and maximum of 29°C (85°F). Additionally, September experiences less precipitation, totaling 173 mm (6.8 in) over 26 days, whereas August sees a much higher rainfall of 294 mm (11.6 in) across 28 days. Humidity remains high in both months, with September recorded at 87% and August at 90%. For more detailed information on August weather specifically, you can refer to Dali weather in August.
September and October present distinct shifts in weather patterns. September features warmer temperatures, with averages around 19°C (67°F) and highs reaching up to 27°C (81°F), while October sees a slight drop, averaging 17°C (63°F) but still peaking at 27°C (81°F). In terms of precipitation, September is notably wetter, experiencing 173 mm (6.8 in) over 26 days, compared to October's 98 mm (3.9 in) across 19 days. Humidity levels also decrease slightly from 87% in September to 81% in October, making October a bit more comfortable. For more details on October's climate in Dali, you can check Dali weather in October.
September weather features a wider temperature range, with minimums around 11°C (52°F) and maximums reaching up to 27°C (81°F), resulting in a pleasant average of 19°C (67°F). However, this month also brings significant precipitation of 173 mm (6.8 in) over 26 days, leading to high humidity levels at 87%. In stark contrast, November experiences milder temperatures, with a minimum of 3°C (37°F) and a maximum of 23°C (73°F), averaging only 13°C (55°F). Additionally, November enjoys much drier conditions, with just 18 mm (0.7 in) of rain over 4 days and slightly lower humidity at 82%. For more details on November weather, you can check Dali weather in November.
September and December showcase a striking contrast in weather conditions. In September, temperatures range from a mild 11°C (52°F) at night to a comfortable high of 27°C (81°F) during the day, accompanied by significant rainfall of 173 mm (6.8 in) over 26 days, contributing to high humidity levels of 87%. In contrast, December experiences much colder weather, with temperatures dropping to a minimum of -1°C (30°F) and averaging around 9°C (49°F). Precipitation is minimal, with only 14 mm (0.6 in) falling over just 3 days, and humidity sits at a more moderate 73%. For more details on December weather, you can refer to Dali weather in December.
As September unfolds in Dali, visitors experience a unique blend of mild temperatures and a notably humid atmosphere, setting it apart from gentler months like June and July. With frequent rainfall, averaging nearly 87% humidity across 26 days, the landscape transforms into a lush paradise, drawing nature enthusiasts to revel in its beauty. While day temperatures may peak at 27°C, the cooling evenings remind us that autumn is on the horizon, creating a refreshing contrast to the hotter summer months. September in Dali is not just about the weather; it’s a time when the vibrant scenery invites exploration and adventure. For a deeper dive into Dali's climate throughout the year, visit Dali Climate.