Last updated: August 21, 2025
In Dali, China, September brings a blend of warm days and cooler nights, creating a pleasant climate for visitors. With maximum temperatures reaching 35°C (96°F) and an average of 22°C (71°F), the weather invites exploration of its stunning landscapes. However, the dip to a minimum of 12°C (54°F) at night prompts a light jacket for evening outings. Rainfall is moderate, with 131 mm (5.2 in) spread over 8 days, resulting in a humidity level of 78% that enhances the lush environment. Overall, September is a captivating time to experience Dali's natural beauty and cultural richness.
In September, Dali, China, ushers in a delightful transition as the summer heat begins to wane. With temperatures ranging from a mild 12°C (54°F) overnight to a pleasant 35°C (96°F) during the day, the weather provides an ideal backdrop for outdoor exploration. The average temperature of 22°C (71°F) creates a comfortable environment, attracting both locals and tourists to enjoy the stunning landscapes and vibrant culture. While temperatures gradually cool down from the sweltering summer months, September maintains a balmy warmth, making it a perfect time for festivities and gatherings in this picturesque town.
In September, Dali, China, experiences a significant uptick in precipitation, with an impressive 131 mm (5.2 in) of rainfall over approximately 8 days. This surge marks a peak following the summer monsoon, where the city transitions from the earlier months of lesser rain. Notably, August also showcases increased moisture, but September outshines it, indicating the tail end of the rainy season. The wettest months, July and August, pave the way for September's consistent rainfall, which not only nourishes the lush landscapes but also sets the stage for a refreshing atmosphere as the region shifts into autumn. With the arrival of October, precipitation takes a sharp decline, falling to 59 mm (2.3 in), hinting at a return to drier days ahead.
In Dali, China, September experiences a moderate humidity level of 78%, which falls slightly below the year's highest readings in the earlier months. As the summer begins to wane, humidity levels have shifted from July's peak of 76% and August's 72%, showcasing a gradual increase that leads into the wetter autumn months. Notably, after September, humidity rises significantly, peaking at 85% in October, suggesting that the region is transitioning into a season characterized by noticeably higher moisture levels. This trend reflects a broader climate pattern in Dali: as the year progresses, humidity typically peaks in the autumn and winter, providing a clear contrast to the drier spell experienced in May that sees a low of 68%. Overall, September serves as a pivotal month in Dali's climate, bridging the warmth of summer and the full embrace of autumn's humidity.
In September, Dali, China experiences a UV Index of 8, classifying the exposure as very high with a burn time of just 15 minutes. This indicates a slight decline from the extreme levels seen in May and June, where the index peaked at 11. However, caution is still advised as the sun's rays remain intense, requiring protective measures for outdoor activities. Throughout the year, the UV Index trends from moderate in the winter months to very high and extreme during the peak summer, highlighting the importance of sun safety as the seasons change. For more detailed information on UV exposure, check the Dali UV Index.
UV Risk Categories
As summer transitions into fall, September in Dali, China, offers a delightful blend of sun and moderate temperatures, boasting 245 sunlight hours. While this marks a dip from the sun-drenched days of July and August, which each enjoyed over 300 hours, it still provides a solid amount of sunshine. May and June lead the way, showcasing the peak of Dali's sunny disposition with impressive totals of 312 and 304 hours, respectively. The gradual decline into autumn is balanced by the crisp air and vibrant landscapes that characterize the region during this time, making September an ideal month for outdoor exploration and enjoying Dali's scenic beauty before the cooler months set in.
In Dali, China, September brings a modest 44% chance of sunny weather, marking a slight improvement from the summer months, where sunlit days hover in the low 40s. As the transition into autumn begins, this uptick signals an end to the higher humidity of the previous season. Interestingly, this month's likelihood of sunshine is notably lower than in the months leading up to it, such as January and February, which boast a sturdy 59%. Looking ahead, the chances of clear skies increase again in November and December, showcasing a seasonal trend where Dali basks in more sunshine as the year ends. So, while September isn’t the sunniest month, it hints at the sun's return in the coming months, making it a time of shifting weather dynamics.
In Dali, China, September marks a transition in daylight duration, with approximately 12 hours of sunshine enriching the days. This month sees a slight decline from the lengthy summer days of July and August, each boasting 14 hours of light, signaling the gradual shift towards the shorter hours of autumn. As the year unfolds, daylight began at a steady 10 hours during the winter months, gradually increasing to a peak in the summer, before tapering off as it approaches October's 11 hours. This rhythmic pattern reflects the beautiful cyclical nature of Dali’s climate, where each season brings a unique blend of daylight and ambiance.
In September, the wind in Dali, China, picks up slightly, with an average speed of 2.1 m/s (5 mph), offering a gentle breeze that contrasts with the lighter winds of the late summer months. This slight increase follows a trend observed throughout the year, where wind speeds fluctuate modestly but remain consistently low during the peak summer months of July and August, when they dip to 1.9 m/s (4 mph). As autumn approaches, the winds begin to regain their vigor, hinting at the seasonal transitions to come. Overall, the data reveals a rhythm in Dali’s wind patterns, with September serving as a bridge toward the cooler, crisper months ahead, while still embracing the lingering warmth of summer.
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.
In September, temperatures in Dali range significantly, with minimums around 12°C (54°F) and maximums peaking at 35°C (96°F), leading to an average of 22°C (71°F). This month experiences considerable rainfall, totaling 131 mm (5.2 in) over approximately 8 days, and humidity levels remain high at 78%. In contrast, January offers a starkly different climate, with much cooler temperatures; the minimum can drop to -11°C (13°F), and the average is only 1°C (35°F), while maximums reach 15°C (60°F). Precipitation in January is minimal at 11 mm (0.4 in) over just 3 days, accompanied by lower humidity levels of 70%. For a detailed overview of January's weather, visit Dali weather in January.
In comparing September and February, the temperature contrast is striking. September boasts a warm average of 22°C (71°F), with maximum highs reaching up to 35°C (96°F), while February brings much cooler temperatures, averaging only 5°C (41°F) with lows plunging to -8°C (18°F). Additionally, September is characterized by higher precipitation levels, totaling 131 mm (5.2 in) across 8 days, compared to February's mild 15 mm (0.6 in) over just 3 days. Both months exhibit high humidity, with September at 78% and February slightly higher at 80%. For more detailed insights, check out Dali weather in February.
In September, temperatures experience a broad range, with minimums around 12°C (54°F) and maximums reaching up to 35°C (96°F), contributing to an average temperature of 22°C (71°F). This month is characterized by relatively high humidity at 78% and substantial rainfall, totaling 131 mm (5.2 in) over about 8 days. In contrast, March offers a much cooler climate, with minimum temperatures dipping to -1°C (30°F) and maximums peaking at 31°C (87°F), leading to an average of 12°C (54°F). The precipitation is considerably less, only 24 mm (0.9 in) across approximately 4 days, along with slightly higher humidity levels of 83%. For more detailed information on March weather, check the link: Dali weather in March.
When comparing the weather in September and April, a few distinct differences emerge. September tends to offer warmer temperatures with a range from a mild 12°C (54°F) at night to a sweltering 35°C (96°F) during the day, averaging around 22°C (71°F). In contrast, April's temperatures are cooler, with nighttime lows of 4°C (39°F) and daytime highs reaching up to 35°C (95°F), averaging 17°C (63°F). Additionally, September is significantly wetter, receiving 131 mm (5.2 in) of precipitation over about eight days, while April sees much less rainfall at 43 mm (1.7 in) over just seven days. Interestingly, humidity levels are slightly higher in April at 81%, compared to 78% in September. For more detailed insights into the April weather patterns, you can refer to Dali weather in April.
September and May both offer warm temperatures, but September tends to feature a slightly wider range, with maximums reaching up to 35°C (96°F) compared to May's peak of 38°C (100°F). While the average temperatures in both months are quite similar, September experiences more precipitation, with 131 mm (5.2 in) over approximately 8 days, making it a wetter month than May, which sees only 44 mm (1.7 in) across 6 days. Additionally, September's humidity is higher at 78%, compared to May's 68%, contributing to a different feel in the air. For a deeper dive into the specifics of weather in May, you can check out Dali weather in May.
When comparing the weather in September and June, we see some notable differences. September tends to have a lower average temperature, with a range from a minimum of 12°C (54°F) to a maximum of 35°C (96°F), while June is warmer overall, featuring a minimum of 15°C (59°F) and a peak of 39°C (102°F). Despite June being hotter, it also experiences less precipitation, averaging 76 mm (3.0 in) over about 7 days, compared to September's average of 131 mm (5.2 in) across 8 days. Humidity levels are relatively similar, with September at 78% and June slightly lower at 74%. For more detailed information, you can check Dali weather in June.
When comparing the weather in September and July, a notable difference emerges in temperature. September features a minimum temperature of 12°C (54°F) and a significantly lower average of 22°C (71°F), while July boasts a warmer minimum of 19°C (67°F) and an average of 28°C (83°F). The maximum temperatures also vary, with July reaching up to 40°C (105°F), in stark contrast to September's high of 35°C (96°F). Additionally, September experiences more precipitation at 131 mm (5.2 in) over 8 days, compared to July’s 91 mm (3.6 in) during the same number of days. Humidity levels are comparable, with September at 78% and July slightly lower at 76%. For more details on July weather, visit Dali weather in July.
September experiences milder temperatures compared to August, with average highs of 22°C (71°F) contrasted with August's warmer average of 27°C (82°F). While September boasts a maximum temperature of 35°C (96°F), it significantly falls short of August’s peak at 41°C (106°F). Additionally, September receives slightly more precipitation, totaling 131 mm (5.2 in) over about 8 days, compared to 120 mm (4.7 in) over 10 days in August. Humidity levels are also higher in September at 78%, compared to 72% in August. For a more detailed look at August's weather conditions, you can visit Dali weather in August.
In September, the weather is notably warmer, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 35°C (96°F) and an average of 22°C (71°F). However, this month experiences a higher total precipitation of 131 mm (5.2 in) over 8 days, combined with a humidity level of 78%. In contrast, October welcomes more coolness, with temperatures dropping to a minimum of 6°C (42°F) and reaching a maximum of 30°C (87°F), alongside an average temperature of 15°C (59°F). The precipitation decreases to 59 mm (2.3 in) over the same number of days, though humidity rises slightly to 85%. For more details about the weather in October, check out the link: Dali weather in October.
September features warmer weather with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 35°C (96°F) and an average of 22°C (71°F). It is also relatively humid at 78%, with notable precipitation of 131 mm (5.2 in) over about 8 days. In contrast, November brings a significant drop in temperatures, with a minimum of -2°C (29°F) and an average of 9°C (49°F), reaching a maximum of 23°C (74°F). The month is much drier, receiving only 21 mm (0.8 in) of precipitation over 4 days, while humidity rises slightly to 82%. For more detailed information, check out Dali weather in November.
September and December present a striking contrast in weather conditions. In September, temperatures range from a mild 12°C (54°F) at night to a warm 35°C (96°F) during the day, accompanied by significant rainfall totaling 131 mm over about 8 days, creating a humid environment with an average humidity of 78%. In contrast, December sees a dramatic drop in temperature, with minimums plummeting to -9°C (16°F) and averages around just 3°C (37°F). Precipitation is minimal at only 4 mm, occurring on just 1 day, while humidity rises slightly to 80%. For more insights into December's climate, you can visit Dali weather in December.
As September rolls in, Dali experiences a delightful transition in weather, marked by milder temperatures compared to the scorching summer months. The average warmth of 22°C (71°F) provides a comfortable backdrop for outdoor adventures, while the nights cool down to refreshing lows. With increased rainfall, totaling 131 mm across about 8 days, September brings a lush vibrancy to the landscape that is a welcome change from the dry summer spell. This month also sees a noticeable hike in humidity, reaching 78%, making it feel pleasantly tropical. Whether you're an outdoor enthusiast or simply looking to enjoy the stunning scenery, September offers a unique charm that sets it apart from other months. For more in-depth insights, check out Dali Climate.