Last updated: August 21, 2025
In September, Xin’an, China experiences a diverse range of temperatures, with maximums reaching 27°C (81°F) and minimums dipping to -1°C (30°F), leading to an average of 14°C (58°F). This month is marked by high humidity levels at 86%, contributing to the region's lush landscapes. Expect significant rainfall, as precipitation amounts to 106 mm (4.2 in) over approximately 10 days, making September a month of transformation as the area shifts toward autumn. Visitors should prepare for a mix of warm days and cool nights, ideal for exploring the vibrant natural beauty of Xin'an.
As September rolls into Xin'an, China, the temperatures begin to shift noticeably with the onset of autumn. The month starts off with a minimum temperature dipping to -1°C (30°F), signaling a gradual retreat from the summer heat. By the end of September, the average temperature hovers around a comfortable 14°C (58°F), while daytime highs can reach up to 27°C (81°F), providing a delightful mix of summer warmth and cool fall breezes. This month clearly marks a transition, as the lingering warmth of summer begins to fade, hinting at the colder months ahead. The daily temperature fluctuations reflect a region fond of extremes, shifting from the sweltering days of August to the crisp, refreshing feel of approaching October.
In September, Xin'an experiences a notable shift in precipitation patterns, with 106 mm (4.2 in) of rainfall spread over 10 days. This month's rainfall marks a slight decrease from the dramatic heights of August, which recorded an impressive 200 mm (7.9 in) over 17 days. Despite the drop, September still maintains a robust level of precipitation, indicative of the region's transition from the intense summer rains to a more moderate autumn climate. As the days shorten and temperatures begin to cool, the consistent rainfall continues to nourish the landscape, showing that the wet season is still in full swing before tapering off into the drier months ahead.
In September, humidity in Xin'an, China reaches a high of 86%, marking a slight decrease from the sweltering 88% of August. Throughout the year, the region experiences notable fluctuations in humidity levels, starting from a damp 84% in January and gradually declining to a minimum of 65% in both November and December. The late summer months are characterized by elevated humidity, particularly in July and August, peaking as the summer heat intensifies. As autumn approaches, September's humidity begins to taper off, hinting at the transition to drier conditions ahead. Overall, the trend highlights a distinct seasonal pattern, with humidity generally higher in the warmer months and gradually easing into the cooler season.
As September rolls in, Xin'an, China experiences a notable shift in sunlight intensity, with the UV Index hovering at 7. This category marks a high exposure level, meaning residents should be cautious, with a burn time of just 25 minutes under direct sun. Following the intense summer months of July and August, where the UV Index peaked at 10, September offers a slight reprieve while still demanding attention to sun safety. With the UV Index tapering off as autumn approaches, individuals should remain vigilant but can enjoy the outdoors knowing that the risk of skin damage is less than during the peak summer days. For more details, explore the Xin'an UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September shines bright in Xin'an, China, boasting an impressive 285 hours of sunlight. This month marks a gentle decline from the sun-drenched peak of 345 hours in July, but it still outshines many other months, standing tall against the 211 hours of November and the 225 hours of December. The sunlight slowly wanes as the year progresses, with September basking in the warmth of late summer while hinting at the cooler days ahead. With a steady trend of increasing sunlight from the dreariness of January to the vibrant days of May and June, September retains a generous glow, ensuring residents and visitors alike can enjoy the beauty of the season.
In September, Xin'an sees a 37% chance of sunny weather, reflecting a gradual shift towards clearer skies as the year progresses. This percentage sits lower than the early spring months and summer, indicating that the peak sunny days are likely behind us as we transition from summer's heat. Notably, this month trails just behind October's promising 60% chance of sunshine, setting the stage for brighter days ahead. While September may not boast the highest likelihood of sun, it highlights a transitional phase as the season changes, making each sunny day a delightful surprise in the midst of autumn's embrace.
As summer transitions to autumn, September in Xin'an, China, offers a delightful shift in daylight duration, with 12 hours of sunlight illuminating the days. This month marks a gentle decrease from the sun-drenched 15 hours of daylight seen in June and July, heralding the gradual onset of shorter days. Following the lush peak of summer, September's daylight still retains a warmth that could entice evening outings and scenic strolls. As the year progresses, we can anticipate further reductions in daylight, dipping down to 10 hours in October, before the winter months bring even less light. This trend highlights a natural rhythm, where the extended summers gracefully yield to the coziness of autumn, inviting us to enjoy the fading rays before winter sets in.
As September unfolds in Xin'an, China, the wind brings a gentle caress, with an average speed of 1.8 m/s (4 mph)—a continuation of the trend seen in the summer months. This marks a decline from the slightly brisker breezes earlier in the year, particularly in spring when winds peaked at 3.1 m/s (7 mph) in April. The reduction in wind speed during late summer and early autumn lends a serene quality to the changing season, contrasting with the more dynamic gusts of January and March. As the city transitions towards October, where winds begin to pick up again, this moment epitomizes a tranquil time in Xin'an, where nature whispers the approach of cooler days ahead.
Weather in Xin'an varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Xin'an, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January offer starkly contrasting weather conditions. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 27°C (81°F), with an average of 14°C (58°F). The month experiences considerable precipitation of 106 mm (4.2 in) over approximately 10 days, paired with high humidity at 86%. In contrast, January presents a much harsher climate, with temperatures plummeting to a minimum of -30°C (-22°F) and reaching a maximum of only 1°C (33°F), averaging -16°C (4°F). Precipitation is minimal at 6 mm (0.2 in), occurring over just 2 days, and humidity slightly decreases to 84%. For more details, check out Xin'an weather in January.
September and February exhibit starkly contrasting weather patterns. In September, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable maximum of 27°C (81°F), with an average of 14°C (58°F), and precipitation of 106 mm (4.2 in) occurring over 10 days. The humidity is quite high at 86%, adding to the sensation of warmth. Conversely, February presents a much harsher climate, with temperatures plummeting to a minimum of -27°C (-17°F) and a maximum of just 7°C (45°F), resulting in an average temperature of -12°C (11°F). The month also experiences significantly less precipitation, only 9 mm (0.4 in) over 2 days, and lower humidity at 79%. For a detailed look at weather conditions in February, visit Xin'an weather in February.
When comparing the weather in September and March, the contrasts are striking. September typically enjoys milder temperatures, ranging from a minimum of -1°C (30°F) to a maximum of 27°C (81°F), with an average of 14°C (58°F). It also experiences considerable precipitation, totaling 106 mm (4.2 in) over about 10 days, and a high humidity of 86%. In contrast, March is much colder, with temperatures plummeting to as low as -25°C (-13°F) and only reaching a maximum of 20°C (68°F), averaging -2°C (29°F). Precipitation is significantly lower at 23 mm (0.9 in) spread over just 5 days, and humidity sits at 71%. For those interested in more details, you can check out Xin'an weather in March.
September and April present distinct weather contrasts. In September, temperatures range from a minimum of -1°C (30°F) to a pleasant maximum of 27°C (81°F), with an average of 14°C (58°F). This month tends to be wetter, receiving about 106 mm (4.2 in) of precipitation over approximately 10 days, and boasts a high humidity level of 86%. In comparison, April experiences cooler temperatures, with a minimum of -6°C (21°F) and an average of 7°C (44°F), peaking at a warm 29°C (84°F). However, it is significantly drier, with only 33 mm (1.3 in) of precipitation over about 6 days and a humidity level of 65%. For more detailed insights regarding April weather, check out Xin'an weather in April.
In September, the weather is characterized by a wider range of temperatures, from a chilly minimum of -1°C (30°F) to a pleasant maximum of 27°C (81°F), with an average of 14°C (58°F). The month experiences a considerable amount of precipitation at 106 mm (4.2 in) over about 10 days, along with high humidity levels at 86%. In contrast, May showcases slightly milder temperatures, with a minimum of 0°C (33°F), an average of 13°C (56°F), and a warmer maximum reaching 32°C (90°F). Precipitation in May is lower at 79 mm (3.1 in) spread across 12 days, accompanied by relatively lower humidity at 70%. For more details on May weather, visit Xin'an weather in May.
In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 27°C (81°F), with an average of 14°C (58°F). The month sees about 106 mm (4.2 in) of precipitation spread over 10 days, resulting in relatively high humidity levels of 86%. In contrast, June experiences milder temperatures, with a minimum of 4°C (40°F) and a maximum of 34°C (94°F), averaging 18°C (64°F). Although June has slightly less precipitation at 99 mm (3.9 in), it occurs over a larger number of days—15 in total—and features lower humidity at 82%. For more details on weather conditions, check out Xin'an weather in June.
In comparing the weather between September and July, significant differences emerge in both temperature and overall conditions. September experiences cooler temperatures with a minimum of -1°C (30°F) and an average of 14°C (58°F), while July boasts a milder range, starting at 11°C (52°F) with average highs around 22°C (72°F). The maximum temperatures in September peak at 27°C (81°F), which is notably lower than July's warmer highs of 33°C (93°F). Precipitation levels are relatively similar, with September receiving 106 mm (4.2 in) over 10 days, compared to July's 102 mm (4.0 in) spread over 13 days, indicating a slightly wetter September. Humidity levels are comparable, with September at 86% and July at 87%, contributing to the overall feel of both months. For a more detailed look at July weather, check out Xin'an weather in July.
In comparing the weather between August and September, September experiences cooler temperatures, with a minimum of -1°C (30°F) and an average of 14°C (58°F), significantly lower than August’s minimum of 5°C (42°F) and average of 20°C (69°F). The maximum temperature in September reaches 27°C (81°F), while August can soar up to 35°C (95°F). Additionally, September sees 106 mm (4.2 in) of precipitation over 10 days, which is lower than August’s 200 mm (7.9 in) of rainfall spread across 17 days. Humidity remains relatively high in both months, with September at 86% and August slightly higher at 88%. For more details, you can refer to Xin'an weather in August.
September and October exhibit marked differences in weather patterns. September features a broader temperature range with a minimum of -1°C (30°F), averaging 14°C (58°F), and peaking at 27°C (81°F). It also experiences more precipitation, with about 106 mm (4.2 in) over 10 days and higher humidity at 86%. In contrast, October sees a more pronounced chill, with a minimum temperature dropping to -7°C (19°F), an average of 6°C (43°F), and a maximum of 28°C (83°F). Rainfall is significantly reduced to just 31 mm (1.2 in) over 4 days, accompanied by slightly lower humidity at 83%. For more detailed insights on October weather, check out Xin'an weather in October.
September and November exhibit stark contrasts in weather conditions. In September, temperatures range from a chilly -1°C (30°F) at night to a warm 27°C (81°F) during the day, with an average of 14°C (58°F). This month also brings significant rainfall, totaling 106 mm (4.2 in) over approximately 10 days, accompanied by high humidity levels of 86%. In contrast, November experiences much colder temperatures, with minimums dropping to -22°C (-7°F) and an average of -4°C (25°F), while maximums only reach 15°C (59°F). Precipitation decreases substantially to 40 mm (1.6 in) across just 5 days, and humidity drops to 65%. This significant shift in weather makes September feel much milder and wetter compared to the frigid, drier climate of November, as illustrated in Xin'an weather in November.
Comparing the weather in September and December reveals a stark contrast in temperature and conditions. In September, temperatures can range from a chilly minimum of -1°C (30°F) to a warm maximum of 27°C (81°F), with an average of 14°C (58°F). The month is characterized by high humidity at 86% and substantial precipitation of 106 mm (4.2 in) over about 10 days. In contrast, December plunges into frigid temperatures, with a minimum of -29°C (-20°F), an average of -13°C (8°F), and a maximum of only 8°C (46°F). Rainfall is minimal, with just 9 mm (0.3 in) spread over 2 days, and lower humidity at 66%. This significant drop in temperature and precipitation highlights the transition from the mild early autumn to the harsh winter months. For more detailed information, check out Xin'an weather in December.
As September rolls in, Xin'an experiences a notable transition in weather, marked by mild temperatures and increased humidity compared to the summer months. With an average temperature that invites comfort, this month presents a refreshing change from the heat, although it still grapples with occasional rains—averaging 106 mm over about ten days. Unlike the sweltering days of August, September's weather reflects a softening edge, perfect for those seeking a balance between warmth and the cooler breezes of autumn. The high humidity at 86% adds to the perception of lushness in the surroundings, making it an ideal time for outdoor activities. To explore more about the weather patterns in this region, visit Xin'an Climate.