Last updated: August 21, 2025
September in Xihu, China offers a delightful transition into autumn, characterized by a maximum temperature reaching 36°C (98°F) and a comfortable average of 20°C (68°F). As the month progresses, occasional drops in temperature can occur, with a minimum of 3°C (37°F). Visitors can expect light precipitation, totaling around 23 mm (0.9 in) over the month, typically spread over four days. The humidity level remains moderate at 48%, contributing to a pleasant atmosphere for outdoor activities and sightseeing in this charming locale.
September in Xihu, China, marks a significant transition, as the temperature begins to cool down from the sweltering summer months. With daily highs reaching up to 36°C (98°F), it’s a warm farewell to summer, yet the minimum temperature dips to a refreshing 3°C (37°F), signaling the approach of fall. The average temperature settles comfortably at 20°C (68°F), making it an ideal time for outdoor activities and exploration. As the month progresses, you can sense the shifting seasons, setting the stage for the crisp autumn air that follows in October. Whether basking in the residual warmth or enjoying cooler evenings, September offers a delightful blend of summer's tail and autumn’s embrace.
In September, Xihu experiences a moderate precipitation level, amounting to 23 mm (0.9 in) over 4 days. This month showcases a continuation of the wet season, following August's total of 25 mm, but marks a slight decrease compared to the heavier rains seen in April and May. The precipitation trend suggests a transition as the region approaches autumn, with rainfall gradually tapering off after the summer months. Despite September's decrease, the overall consistency in rainfall persists, ensuring that the area remains lush and vibrant as it shifts into the cooler months.
As September unfolds in Xihu, China, the humidity levels begin to rise slightly from the summer lows, settling at a comfortable 48%. This marks a notable shift after months of increasingly dry conditions during the summer, where humidity dipped to as low as 38% in June. The trend shows that the transition from the heat of summer to the more temperate autumn brings a gradual increase in moisture in the air, paving the way for the upcoming fall months. As the year progresses into October, humidity levels climb again to 64%, reflecting the return of more saturated air typical of the region's climate. Overall, September serves as a bridge between the arid summer and the more humid conditions of autumn, creating a refreshing environment for residents and visitors alike.
In September, Xihu, China, experiences a UV Index of 7, indicating a high level of sun exposure with a burn time of just 25 minutes. This shift from the peak summer months, where the UV Index reached a maximum of 10, reflects a gradual decrease in sun intensity as autumn approaches. The trend of heightened UV levels from May to August gives way to a more moderate but still significant exposure in September, underscoring the importance of sun protection even as temperatures start to cool. As you enjoy the lingering warmth of summer, remember that UV rays can still be intense. For more details on UV levels throughout the year, visit Xihu UV Index.
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September in Xihu, China, brings a delightful blend of sun and mild temperatures, boasting 333 hours of sunshine. This marks a gradual decline from the sun-drenched peak of 399 hours in July, reflecting the natural transition from summer to autumn. Despite the decrease, September's sunshine still shines brightly when compared to earlier months, notably outpacing the cold winter days of November and December, which offer only 247 and 231 hours respectively. As the year progresses, the sunshine patterns reveal a clear trend: summer months radiate the most light, while autumn begins to usher in shorter days, inviting a gentle shift toward cozy, cooler times. Embracing September's warmth is a perfect way to enjoy the lingering summer charm before the quieter months roll in.
As summer transitions into autumn, **September in Xihu, China, boasts a remarkable 71% chance of sunny weather, making it one of the sunniest months of the year. This significant increase in sunshine opportunity follows the warmer months of June, July, and August, which average around 50-53%. The trend is clear: as the year progresses from the bleak cold of January with only a 23% chance of sun to September's bright prospects, visitors and locals alike can look forward to more pleasant and sunlit days. Following September, October also maintains a respectable 54% chance of sunshine, providing a smooth transition into the autumn season. With these robust figures, September stands out as an ideal time to enjoy Xihu's stunning landscapes beneath clear skies.
As September unfolds in Xihu, China, the daylight duration begins to gently recede from the summer peak. With about 12 hours of daylight, the month marks a transitional phase, gracefully bridging the long, sun-drenched days of summer and the cooler, shorter days of fall. The noticeable decline from the previous months highlights a gradual but steady shift, setting the stage for the 10-hour days of October. This rhythmic ebb and flow of daylight not only influences the local ambiance but also signals the impending seasonal change, making each sunrise and sunset feel distinctly more precious.
In Xihu, China, the September winds gracefully shift into a gentle embrace, with an average speed of 2.2 m/s (5 mph). As summer wanes, the breeze reflects a subtle decline from the peak gusts of May to July, where winds reached a refreshing 3.2 m/s (7 mph). Following the robust summer, September's softer currents signal a transition towards the cooler months. This trend continues into October, where the winds dip further to 2.0 m/s (5 mph), indicating the seasonal shift that blankets the region in tranquility as it prepares for autumn. The overall pattern showcases a rhythmic ebb and flow of winds, inviting both locals and visitors alike to enjoy the serene ambiance of Xihu's enchanting landscapes.
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.
In September, temperatures range from a cool 3°C (37°F) to a warm average of 20°C (68°F), with highs reaching as much as 36°C (98°F). The month experiences light precipitation of about 23 mm (0.9 in) over four days, accompanied by a moderate humidity level of 48%. In stark contrast, January brings a frigid climate, with temperatures ranging from a chilling -30°C (-22°F) to a maximum of just 2°C (37°F), averaging -15°C (4°F). Precipitation is minimal at only 5 mm (0.2 in), and the month sees no days of rain, while humidity rises significantly to 74%. This dramatic shift emphasizes the stark seasonal changes in this region. For more detailed insights on January weather, you can visit Xihu weather in January.
September and February present strikingly different weather patterns. In September, temperatures range from a mild 3°C (37°F) at night to a scorching 36°C (98°F) during the day, with an average of 20°C (68°F). The month experiences low precipitation, totaling 23 mm (0.9 in) over about 4 days, while humidity levels hover around 48%. In contrast, February plunges into winter, with temperatures dipping as low as -25°C (-13°F) and averaging -10°C (15°F), peaking at a chilly 7°C (46°F). This cold month sees minimal precipitation of only 7 mm (0.3 in) over just 1 day, accompanied by higher humidity at 71%. For more detailed insights on the weather conditions in February, you can check Xihu weather in February.
In comparing the weather of September and March, it is evident that the two months embody stark contrasts. September typically sees a minimum temperature of 3°C (37°F) and can reach highs of up to 36°C (98°F), averaging around 20°C (68°F). The humidity is relatively moderate at 48%, and precipitation is minimal, with only 23 mm (0.9 in) over about four days.
In contrast, March experiences much colder conditions, with temperatures ranging from a chilling minimum of -16°C (3°F) to a maximum of 22°C (72°F), averaging just 3°C (38°F). This month also sees higher humidity levels at 60% and slightly more precipitation, totaling 26 mm (1.0 in) over five days. For detailed insights into March weather, you can refer to this link: Xihu weather in March.
September and April exhibit contrasting weather patterns, reflecting the transition between seasons. In September, temperatures range from a chilly 3°C (37°F) at night to a warm 36°C (98°F) during the day, with an average of 20°C (68°F) and relatively low precipitation of 23 mm over about 4 days. In contrast, April experiences colder minimum temperatures dropping to -2°C (28°F), while reaching a maximum of 34°C (94°F) and an average of 14°C (58°F). The month is also wetter, with 50 mm of rain spread over 8 days, accompanied by slightly higher humidity at 53%. For a closer look at April weather, you can visit Xihu weather in April.
In September, temperatures range from a cool 3°C (37°F) to a warm 36°C (98°F), with an average of 20°C (68°F). The month experiences relatively low precipitation, totaling 23 mm (0.9 in) over just 4 days, while humidity remains stable at 48%. In contrast, May tends to be slightly milder, with minimum temperatures of 5°C (41°F) and an average of 21°C (70°F), peaking at 37°C (98°F). However, May is wetter, receiving 51 mm (2.0 in) of precipitation over 8 days, yet it maintains the same humidity level of 48%. For more detailed information, you can check Xihu weather in May.
September and June present distinctly different weather profiles. September generally offers a broader temperature range, with minimums around 3°C (37°F) and maximums reaching up to 36°C (98°F), averaging at 20°C (68°F). This month also sees approximately 23 mm (0.9 inches) of precipitation over about 4 days, coupled with a humidity level of 48%.
In contrast, June tends to be warmer, with minimum temperatures of 11°C (52°F) and maximums soaring to 38°C (101°F), averaging at 25°C (78°F). While June receives slightly more precipitation at 26 mm (1.0 inches) over 6 days, it has a lower humidity level at 38%. For a detailed look at Xihu's weather in June, check out Xihu weather in June.
In September, temperatures start to cool down, with a minimum of 3°C (37°F) and an average of 20°C (68°F), compared to July, which experiences much warmer temperatures with a minimum of 13°C (56°F) and an average of 28°C (83°F). July also sees maximum temperatures soaring to 42°C (108°F), while September's maximums can reach up to 36°C (98°F). Although September has slightly higher precipitation levels at 23 mm (0.9 in) over four days than July's 17 mm (0.7 in) on the same number of days, July maintains lower humidity levels at 40%, compared to 48% in September. For a detailed view of July weather, you can visit Xihu weather in July.
In comparing the weather of September and August, we see a marked shift in temperature and conditions. September experiences a broader temperature range, with a minimum of 3°C (37°F) and a maximum of 36°C (98°F), resulting in an average of 20°C (68°F). In contrast, August has milder minimum temperatures, starting at 15°C (59°F), and a higher average of 26°C (79°F), peaking at 39°C (102°F). Precipitation levels are slightly lower in September at 23 mm (0.9 in) over 4 days compared to August's 25 mm (1.0 in) over 5 days. Additionally, September boasts a slightly higher humidity at 48%, while August maintains a more comfortable 43%. For a closer look at August weather specifics, you can check Xihu weather in August.
September typically showcases more warmth, with average temperatures around 20°C (68°F) and highs reaching up to 36°C (98°F). However, it also experiences relatively lower humidity at 48% and less frequent precipitation, averaging 23 mm over just four days. In contrast, October marks a significant drop in temperatures, with an average of 10°C (50°F) and a minimum hitting -2°C (29°F). The month sees a slight increase in precipitation, totaling 25 mm across five days, along with higher humidity at 64%. For a detailed look at October weather, you can check Xihu weather in October.
September and November exhibit starkly contrasting weather patterns. In September, temperatures range from a cool minimum of 3°C (37°F) to a warm maximum of 36°C (98°F), with a pleasant average of 20°C (68°F). The month sees relatively low precipitation at 23 mm (0.9 in) over 4 days, accompanied by a comfortable humidity level of 48%. In comparison, November ushers in much colder temperatures, with a minimum plunge to -15°C (6°F) and an average of -1°C (30°F), despite a maximum that reaches a mild 18°C (64°F). Precipitation is slightly lower, at 22 mm (0.9 in) over the same number of days, but humidity rises to 70%, contributing to a chillier atmosphere. For more specific details, you can view Xihu weather in November.
In September, the weather is characterized by warm temperatures, with an average of 20°C (68°F) and a maximum reaching up to 36°C (98°F). The month experiences moderate precipitation of 23 mm (0.9 in) over 4 days, accompanied by a relatively low humidity of 48%, making it a comfortable time for outdoor activities. In stark contrast, December brings a chill, with temperatures plummeting to a minimum of -24°C (-10°F) and an average of -11°C (12°F). This month sees significantly lower precipitation, with only 8 mm (0.3 in) over just 1 day, but higher humidity levels at 74%, creating a distinctly colder and more enveloping atmosphere. For more detailed information, you can check Xihu weather in December.
As September rolls in, Xihu experiences a remarkable shift in its weather dynamics, offering a refreshing reprieve from the summer heat. With temperatures dipping to a more comfortable average, the month features a balance of warm days and cooler nights, making it ideal for outdoor activities. While precipitation remains low, the occasional rain adds a touch of moisture to the landscape, fostering a vibrant atmosphere. The moderate humidity levels contribute to a pleasant experience, setting September apart from the extremes of both summer and winter. For a detailed exploration of seasonal variations and climate insights, visit Xihu Climate.