Last updated: August 21, 2025
In Baiyun, China, September presents a warm and humid climate, with maximum temperatures soaring up to 38°C (100°F) and an average of 26°C (80°F), providing a balmy atmosphere for outdoor activities. The month sees a minimum temperature of 16°C (61°F), ideal for cooler evenings. With an average precipitation amount of 106 mm (4.2 in) spread over 12 rainy days, residents and visitors alike can expect occasional showers amidst the warm temperatures. The humidity levels remain high at 72%, enhancing the tropical feel of this bustling region during early autumn.
In September, Baiyun, China, experiences a pleasant transition towards the cooler months, with temperatures ranging from a mild 16°C (61°F) at night to a warm 38°C (100°F) during the day. This month boasts an average temperature of 26°C (80°F), providing a comfortable climate for outdoor activities. Interestingly, September marks a slight dip from the intense heat of the preceding summer months, where high temperatures peaked in the low 40s°C. As the days grow shorter and the air begins to cool, this time in Baiyun invites visitors to savor the lingering warmth while appreciating the gradual onset of autumn.
In September, Baiyun experiences a noticeable shift in precipitation, with a total of 106 mm (4.2 in) spread over 12 days. This marks a decrease from the heavier rainfall of the summer months, particularly June, which often sees peaks over 400 mm. As the monsoon season begins to wane, the weather becomes somewhat drier yet still provides a refreshing contrast to the sweltering summer heat. Comparatively, August delivered 150 mm (5.9 in) of rain over 15 days, indicating a transition to more moderate conditions. The precipitation trend suggests that while September retains the remnants of summer rain, it hints at the approaching drier months ahead, as October typically brings only 43 mm (1.7 in) of rain.
As September arrives in Baiyun, China, residents experience a noticeable drop in humidity, with levels averaging around 72%. This marks a significant decrease from the sweltering heights of 91% in July and 87% in August, providing a refreshing contrast as summer wanes. The trend of humidity throughout the year starts relatively high, peaking in late spring and summer, but September signals the beginning of a gradual decline that continues into the fall. Following September, humidity rises slightly in October to 74%, hinting at the lingering moisture from the transitioning seasons. Overall, September offers a reprieve from the peak summer humidity, paving the way for the cooler months ahead.
As September arrives in Baiyun, China, the UV Index remains notably elevated at 10, placing it in the very high exposure category with a burn time of just 15 minutes. This trend follows a summer marked by extreme UV levels that peaked at 12 in July and August, emphasizing the need for sun protection as the days begin to shorten. After a steady period of intense sun exposure through the summer months, September offers a slight reprieve, yet vigilance is still crucial for outdoor activities. Looking ahead, the UV Index gradually decreases into October, but the effects of earlier months linger, reminding residents and visitors alike to stay informed and protect their skin during this transition. For more details on UV levels, visit Baiyun UV Index.
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As September arrives in Baiyun, China, residents and visitors alike enjoy a splendid 269 hours of sunshine, marking a gentle transition from the sun-drenched heights of summer. Following the peak of 314 hours in August, the daylight hours gracefully decline, yet September still boasts abundant sunshine, outpacing the earlier months of the year. This pattern highlights a notable trend: the sun's warm embrace intensifies from the beginning of the year, peaking in the mid-summer months before giving way to a gradual taper in the fall. Despite the slight decrease, September retains the charm of summer, making it a perfect time for outdoor activities amidst a backdrop of vibrant early autumn hues.
As summer wanes and September approaches in Baiyun, China, the likelihood of sunny weather experiences a welcomed resurgence. With a 55% chance of sunshine, this month ranks as one of the brighter times of the year, standing out against the grayer stretches of the preceding months. Notably, September offers a significant improvement compared to the depths of summer, where June and July see only 15% and 18% chances of sunshine, respectively. Following a particularly overcast spring, the return of more favorable sunny days in September signals the transition into autumn, making it an ideal time for outdoor activities and enjoying the pleasant weather before winter sets in.
September in Baiyun, China, experiences a graceful transition as daylight begins to wane, offering approximately 12 hours of sunlight. This decrease follows the peak summer months, where daylight lingers for up to 13 hours in June, July, and August. As the year unfolds, the daylight duration gradually diminishes, starting from a robust 13 hours in the summer and easing down to 10 hours by December. This rhythm reflects the gentle shift from vibrant summer days to the cooler, shorter autumn months, allowing residents and visitors alike to enjoy the lingering warmth of early fall while gradually preparing for the more subdued light of winter.
As summer transitions into autumn, September in Baiyun, China sees a gentle breeze with an average wind speed of 1.7 m/s (4 mph), maintaining a consistent yet slightly calmer flow compared to the preceding months. This marks a subtle dip from July's peak of 2.1 m/s (5 mph), where warmer days often bring a refreshing gust. Throughout the year, the wind patterns reveal a fascinating dynamic; while winter months hover around 1.9 to 2.0 m/s, there's a notable increase in speed towards the end of the year, peaking at 2.5 m/s (6 mph) in October. This gradual evolution in wind speed not only enhances the charm of Baiyun's landscape but also plays a crucial role in shaping the region's climate as it transitions through the seasons.
Weather in Baiyun varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Baiyun, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present starkly different weather patterns. In September, temperatures range from a mild 16°C (61°F) at night to a scorching 38°C (100°F) during the day, with an average of 26°C (80°F). The month sees significant rainfall, totaling 106 mm (4.2 in) across about 12 days, accompanied by a relatively high humidity of 72%. In contrast, January brings much colder conditions, where temperatures can drop to as low as -6°C (22°F) at night, with an average high of 23°C (74°F) and an overall average of just 7°C (45°F). With precipitation at 78 mm (3.1 in) over 10 days and a lower humidity of 65%, January feels considerably drier and chillier. For more insights on January weather, check out Baiyun weather in January.
September and February present stark contrasts in weather. In September, temperatures soar with a minimum of 16°C (61°F) and an average of 26°C (80°F), peaking at a sweltering 38°C (100°F). The month also sees a significant amount of rainfall, accumulating to 106 mm (4.2 in) over approximately 12 days, coupled with a humidity level of 72%. In contrast, February is much cooler, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 25°C (78°F) and an average of just 8°C (48°F). While precipitation is slightly lower at 100 mm (4.0 in) over 13 days, the humidity remains relatively similar at 71%. For a closer look at February conditions, you can check Baiyun weather in February.
In September, the weather is notably warmer, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 38°C (100°F) and an average of 26°C (80°F). The month also experiences significant rainfall, totaling 106 mm (4.2 in) over approximately 12 days, accompanied by a humidity level of 72%. In contrast, March features much cooler conditions, where temperatures dip to a minimum of 2°C (36°F) and reach a maximum of 30°C (86°F), averaging 14°C (57°F). March is also wetter, with total precipitation of 211 mm (8.3 in) spread across 18 days, resulting in higher humidity at 81%. The shift from the heat of September to the chill of March highlights the seasonal changes, making it an intriguing time to explore local climate variations. For more detailed weather insights in March, check out Baiyun weather in March.
When comparing the weather in September and April, there are notable differences in temperature and precipitation patterns. September tends to be warmer, with average daily temperatures ranging from a minimum of 16°C (61°F) to a maximum of 38°C (100°F), whereas April sees cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 33°C (91°F). Additionally, September experiences lower overall precipitation at 106 mm (4.2 in) over 12 days, compared to April's heavier rainfall totaling 194 mm (7.7 in) across 16 days. Humidity is also higher in April at 86%, compared to September’s 72%. For more detailed information about April weather in Baiyun, refer to Baiyun weather in April.
When comparing the weather in September and May, notable differences emerge. September typically showcases warmer temperatures, with averages around 26°C (80°F) and maximums reaching 38°C (100°F), while May has a cooler average of 23°C (73°F) and a maximum of 37°C (98°F). However, May experiences significantly higher precipitation, with 262 mm (10.3 in) over 17 days, compared to September's 106 mm (4.2 in) over 12 days. Additionally, humidity levels are higher in May at 87%, compared to September's 72%. For a closer look at the climate specifics, you can check out Baiyun weather in May.
When comparing September and June weather, we can see some notable differences. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 38°C (100°F), with an average of 26°C (80°F) and a humidity level of 72%. In contrast, June presents slightly cooler temperatures, with a minimum of 16°C (62°F), averaging 25°C (78°F), and peaking at 36°C (97°F). However, June experiences significantly higher precipitation, with 431 mm (17.0 in) spread over 22 days, compared to September's 106 mm (4.2 in) over just 12 rainy days. The humidity in June is also higher at 87%, contributing to a more oppressive and moist feel. For more specific details on weather patterns in June, check out Baiyun weather in June.
In comparing the weather between September and July, a few distinct differences emerge. September typically experiences slightly cooler temperatures, with a minimum of 16°C and an average of 26°C, compared to July's warmer minimum of 21°C and average of 29°C. Both months can reach a maximum of 38°C, but July's higher humidity at 91% makes it feel more oppressive than September's 72%. Additionally, July sees significantly more rainfall, with 307 mm over 18 days, while September has a total of 106 mm over 12 days. For more detailed information on July's weather, you can check Baiyun weather in July.
In comparing the weather of September and August, September shows a noticeable dip in minimum temperatures, dropping to 16°C (61°F) compared to August's 21°C (71°F). The average temperature in September is slightly lower at 26°C (80°F), while August remains warmer with an average of 29°C (85°F). Additionally, both months experience high maximum temperatures, with September reaching up to 38°C (100°F) and August soaring to 39°C (103°F). Precipitation also decreases in September, totaling 106 mm (4.2 in) over 12 days, while August sees more rain at 150 mm (5.9 in) spread across 15 days. Humidity levels are notably higher in August at 87%, compared to September's 72%. For more detailed insights into August weather in Baiyun, you can visit Baiyun weather in August.
In September, the weather is characterized by warmer temperatures, with a minimum of 16°C (61°F) and an average of 26°C (80°F), reaching highs of 38°C (100°F). This month also sees significant rainfall, with 106 mm (4.2 in) of precipitation spread over 12 days, and humidity levels hovering around 72%. In contrast, October experiences a noticeable drop in temperature, with minimums falling to 8°C (47°F) and an average of 20°C (69°F), although it still reaches highs of 37°C (98°F). Precipitation significantly decreases to 43 mm (1.7 in) over just 7 days, while humidity slightly increases to 74%. For more details on October weather, you can check Baiyun weather in October.
September and November present contrasting weather conditions. In September, temperatures range from a minimum of 16°C (61°F) to a scorching maximum of 38°C (100°F), with an average of 26°C (80°F). The month sees considerable rainfall, totaling 106 mm (4.2 in) over approximately 12 days, coupled with a humidity level of 72%. In stark contrast, November experiences much cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 29°C (85°F), averaging around 15°C (59°F). Precipitation is also lower in November, at 88 mm (3.5 in) across 10 days, though the humidity increases slightly to 80%. For a more detailed look at November weather, you can explore Baiyun weather in November.
September and December present notably different weather conditions. In September, temperatures range from a minimum of 16°C (61°F) to a maximum of 38°C (100°F), with an average of 26°C (80°F). This month experiences high humidity at 72% and considerable precipitation of 106 mm (4.2 in) over about 12 days. In contrast, December brings a significant drop in temperatures, with a minimum of -2°C (28°F) and an average of only 9°C (48°F); the maximum reaches 25°C (77°F). Precipitation is also lower, totaling 66 mm (2.6 in) across 10 days, while humidity increases slightly to 78%. For more details on December weather, you can visit Baiyun weather in December.
As summer transitions into fall, September in Baiyun showcases a notable shift in weather patterns compared to the preceding months. The maximum temperatures, while still reaching hot peaks, are tempered by cooler evenings, making for a more comfortable climate overall. Although the month sees a fair amount of rainfall spread over several days, the average humidity remains consistent, giving the air a refreshing feel that contrasts with the dry heat of July and August. This combination of warm days and inviting nights provides a perfect backdrop for outdoor activities, allowing residents and visitors to savor the beauty of transition. For a deeper dive into the region's climate, check out Baiyun Climate.