Last updated: August 21, 2025
September in Xihu, China offers a warm and humid climate, with daily highs reaching up to a sizzling 36°C (97°F) and an average temperature of 24°C (76°F). As the month progresses, temperatures can dip to a cooler 14°C (58°F) at night, making evenings more comfortable. Rainfall is notable, with a total of 100 mm (3.9 in) spread across approximately 10 days, ensuring that the lush landscape remains vibrant. The humidity level averages around 72%, contributing to a distinctly tropical feel, ideal for exploring the picturesque surroundings while being prepared for the occasional shower.
In September, Xihu, China, experiences a delightful transition towards autumn, with temperatures shifting to a comfortable range. The minimum temperature hovers around 14°C (58°F), while the average settles at a pleasant 24°C (76°F), making it a favored month for outdoor activities. As the heat of summer wanes, the maximum temperature still reaches up to 36°C (97°F), indicating lingering warmth. This month serves as a gentle reminder of the summer's end, blending cooler mornings and evenings with the last remnants of heat. Travelers visiting during this time can enjoy a refreshing climate that strikes a balance between warmth and coolness, perfect for exploring the scenic beauty of Xihu.
September in Xihu, China, marks a notable shift as the dry season begins to set in, yet it still maintains a significant amount of rainfall. With 100 mm (3.9 in) of precipitation spread over 10 days, the month sits comfortably in the middle of the yearly rainfall spectrum. This is a decrease from the deluge seen in the peak of summer, where July recorded a staggering 270 mm (10.6 in). Compared to August’s 155 mm, September’s rainfall reflects a transition towards drier conditions, heralding the approaching autumn months. As the landscape begins to dry, the moderate precipitation of September offers a welcome respite from the summer heat, while still nourishing the region's lush greenery.
September in Xihu, China, marks a noticeable transition in humidity levels as the summer months wane. With humidity dropping to 72%, it reflects a respite from the peak of July and August, which boast some of the highest humidity levels at 88% and 85% respectively. This decline hints at the approach of autumn, as the humidity steadily increases from the cooler beginning of the year, where January started at 64%. As we move toward October, the humidity rises slightly to 76%, suggesting a gradual shift back to more moisture-laden conditions typical of later fall. Overall, September serves as a pivotal turning point, bridging the high summer humidity with the more moderate levels expected in the months to come.
As September arrives in Xihu, China, the UV Index remains notably high at 10, categorizing it as very high and requiring caution; sunburn can occur within 15 minutes of unprotected exposure. This month marks a slight decrease from the extreme levels seen in the summer months of June, July, and August, which all held a consistent index of 11. Throughout the year, the trend shows a gradual increase in UV intensity from January's moderate index of 4 to this peak in the summer, followed by a decrease in October. Such patterns highlight the importance of sun safety, especially during these months of intense sun exposure. For more information on UV levels, you can visit Xihu UV Index.
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As summer gracefully transitions into autumn, September in Xihu, China, continues to bask in a generous 262 hours of sunshine, making it a radiant month for outdoor activities and sightseeing. This reflects a slight decrease from August's peak of 303 hours, yet it still holds its own as one of the sunniest months of the year. The sunshine hours begin to gradually decline from the high of summer, but September's warmth lingers, allowing for vibrant foliage and pleasant weather. Following this, October reveals 239 hours of sunshine, signaling the approaching cooler months. Overall, Xihu showcases a beautiful blend of summer's warmth and the crisp beginnings of fall, inviting visitors to enjoy the stunning landscape illuminated by a spectrum of sunlight.
In Xihu, China, September brings a refreshing shift in weather patterns, with a sunny disposition that appears to stabilize compared to the summer months. With a 48% chance of sunshine, this month often offers a pleasant respite from the overcast skies typical of the preceding summer. Interestingly, after the low probabilities seen in July and August, September hints at a resurgence in clearer days, paving the way for the autumn months. As temperatures cool and the likelihood of sunshine rises, September serves as a fine bridge toward the sunnier outlook of late autumn, where opportunities for outdoor activities abound.
September in Xihu, China, signals a gentle transition from the vibrant summer days to the cooler embrace of autumn, with daylight lasting around 12 hours. This month marks a slight dip from the peak of 14 hours seen in June and July, reflecting nature's gradual shift. As daylight begins to wane, it follows a clear trend of diminishing hours in the latter part of the year, declining from the long days of summer toward the shorter, cozy winter months. Notably, September offers a balanced blend of sunlight, making it an ideal time for outdoor activities as the days remain pleasantly warm yet increasingly tempered by the approaching chill.
As September arrives in Xihu, China, the average wind speed settles at 3.1 m/s (7 mph), providing a refreshing breeze that echoes the transitional essence of the season. This marks a consistent return to favorable winds reminiscent of the early year. Notably, July experiences the highest winds at 3.8 m/s (8 mph), while August sees a subtle dip to 2.5 m/s (6 mph), hinting at the comforting calm before autumn's arrival. The wind's gentle embrace in September reflects a delicate balance, maintaining the steady wind averages observed throughout the year, with deviations that suggest a harmony between the lively summer and the serene fall days ahead. As temperatures begin to cool, the winds remain a reliable presence, marking a beautiful shift in Xihu's atmospheric landscape.
Weather in Xihu varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Xihu, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present striking contrasts in weather conditions. In September, temperatures range from a minimum of 14°C (58°F) to a scorching maximum of 36°C (97°F), with an average of 24°C (76°F) and 100 mm (3.9 in) of precipitation over approximately 10 days. The high humidity level of 72% further intensifies the warmth of the month. In contrast, January experiences a significant drop in temperatures, with lows of -9°C (17°F) and highs reaching only 17°C (63°F), averaging just 4°C (39°F). The month sees less precipitation at 47 mm (1.8 in) over 7 days, and a more comfortable humidity level of 64%. These variations make September a time of heat and moisture, while January brings cold and relative dryness. For more detailed weather information, check out Xihu weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a mild 14°C (58°F) to a scorching 36°C (97°F), with an average of 24°C (76°F). This month sees significant rainfall, totaling about 100 mm (3.9 in) over approximately 10 days, accompanied by a humidity level of 72%. Conversely, February experiences much cooler temperatures, with a minimum of -6°C (22°F) and a maximum of 26°C (78°F), averaging around 6°C (42°F). Precipitation drops to 44 mm (1.7 in) over 8 days, while humidity remains relatively stable at 71%. For a closer look at February conditions, you can visit Xihu weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a minimum of 14°C (58°F) to a maximum of 36°C (97°F), with an average of 24°C (76°F). This month experiences significant rainfall, totaling around 100 mm (3.9 in) over approximately 10 days, along with a humidity level of 72%. In contrast, March features much cooler temperatures, with a minimum of -2°C (30°F) and a maximum of 29°C (85°F), averaging 11°C (52°F). The precipitation is lighter in March, totaling only 53 mm (2.1 in) over about 8 days, and humidity is slightly higher at 80%. For more detailed information on March weather, check out Xihu weather in March.
When comparing the weather in September and April, notable differences emerge in temperature and humidity. September tends to be warmer, with average temperatures reaching 24°C (76°F) and maximums soaring up to 36°C (97°F). In contrast, April features a cooler average of 16°C (61°F), with maximums around 31°C (89°F). While September experiences higher precipitation totaling 100 mm (3.9 in) over 10 days, April is slightly drier with 57 mm (2.3 in) over 8 days. Additionally, April has a higher humidity level of 83%, compared to 72% in September, giving it a more muggy feel. For more detailed information about the weather in April, check out Xihu weather in April.
September and May exhibit notable differences in weather patterns. September tends to be warmer, with average temperatures around 24°C (76°F) compared to May's cooler average of 21°C (71°F). Despite both months having the same maximum temperature of 36°C (97°F), September often experiences slightly higher humidity at 72% versus May's 80%. Additionally, while September has about 100 mm (3.9 in) of precipitation over 10 days, May is slightly wetter with 133 mm (5.3 in) of rainfall over just 8 days. For more details about the climate in May, you can check Xihu weather in May.
In comparing the weather between September and June, both months experience similar maximum temperatures, reaching up to 36°C (97°F), which makes them equally warm at their peak. However, September tends to have slightly cooler minimum temperatures, averaging 14°C (58°F) compared to June's minimum of 16°C (62°F). On the precipitation front, June is wetter, with 154 mm (6.1 in) of rainfall over 9 days, while September sees a total of 100 mm (3.9 in) over 10 days. The humidity levels are also higher in June at 81%, compared to 72% in September, contributing to a more muggy atmosphere during that month. For more details, check out Xihu weather in June.
When comparing the weather in September to that of July, notable differences emerge. September typically experiences a lower average temperature of 24°C (76°F) compared to July's 28°C (82°F), making it somewhat cooler overall. The maximum temperatures in September can reach 36°C (97°F), while July peaks at a hotter 38°C (101°F). Precipitation also varies significantly: September sees about 100 mm (3.9 in) over 10 days, whereas July is much wetter, with 270 mm (10.6 in) occurring over 17 days. Furthermore, humidity levels are higher in July at 88%, compared to September's 72%, contributing to a more oppressive atmosphere in the summer month. For those interested in more detailed weather patterns, additional information can be found at Xihu weather in July.
In comparing the weather of September and August, September tends to be slightly cooler, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 36°C (97°F), whereas August features higher minimum temperatures starting at 21°C (71°F) and an average of 28°C (83°F). Additionally, September experiences a decrease in precipitation, totaling 100 mm (3.9 in) over about 10 days, compared to August's considerably wetter conditions with 155 mm (6.1 in) over 14 days. Humidity also drops from 85% in August to 72% in September, contributing to a drier feel as the season transitions. For a more detailed look at August weather patterns, check Xihu weather in August.
September and October display notable differences in weather patterns. September enjoys warmer temperatures, with an average high of 36°C (97°F) and lows around 14°C (58°F), while October experiences cooler temperatures, averaging a maximum of 33°C (91°F) and dipping to a minimum of 6°C (43°F). Precipitation decreases in October to 59 mm (2.3 in) over 8 days, compared to September's 100 mm (3.9 in) over 10 days. Additionally, humidity remains relatively high in both months, with October slightly edging higher at 76% compared to September's 72%. For more details, you can check Xihu weather in October.
September presents a warm and humid climate, with temperatures ranging from a minimum of 14°C (58°F) to a scorching maximum of 36°C (97°F) and an average of 24°C (76°F). The month is marked by significant precipitation, totaling approximately 100 mm (3.9 in) over about 10 days, contributing to a humidity level of around 72%. In contrast, November experiences a much cooler environment, with temperatures dipping to a minimum of 0°C (33°F) and peaking at 28°C (83°F), averaging at 12°C (55°F). The precipitation is notably lower at 40 mm (1.6 in) over 5 days, but the humidity increases to 84%. For more detailed insights on November's climate, you can visit Xihu weather in November.
September and December present stark contrasts in weather patterns. In September, temperatures typically range from a mild 14°C (58°F) to a scorching high of 36°C (97°F), accompanied by significant rainfall totaling 100 mm (3.9 in) over approximately 10 days, maintaining an average humidity of 72%. In contrast, December ushers in a much cooler atmosphere, where temperatures dip to a minimum of -8°C (19°F) and peak at 19°C (67°F), with an average of only 6 days of light precipitation totaling 39 mm (1.5 in) and humidity slightly higher at 75%. For those interested in more details, check out the climate specifics here: Xihu weather in December.
September in Xihu marks a notable transition in weather, with temperatures cooling from the summer heat and a refreshing dose of rainfall. Unlike the peak summer months, September offers a more temperate average, making outdoor activities more appealing. While the humidity remains a factor, it is balanced by the increased occurrence of precipitation, providing much-needed relief from the dry spells of July and August. With about 10 days of rain, the landscape flourishes in vibrant colors, setting a stunning backdrop for the changing season. For a deeper understanding of Xihu's weather patterns, visit Xihu Climate.