Last updated: August 21, 2025
September in Lin'an, China, is characterized by a warm and humid climate, with maximum temperatures reaching up to 30°C (86°F) and an average of about 21°C (70°F). The month experiences a notable minimum temperature of 13°C (55°F), providing a pleasant range for outdoor activities. However, it is also a time of considerable precipitation, with 152 mm (6.0 in) of rain falling over approximately 22 days, leading to lush greenery that defines the region. The high humidity level of 81% adds to the tropical feel, making September a vivid and vibrant month in Lin'an.
In September, Lin'an experiences a beautiful transition towards autumn, with temperatures markedly milder than the sweltering summer months. The minimum temperature settles at a comfortable 13°C (55°F), paving the way for pleasant days ahead. With average highs reaching 30°C (86°F), the weather still retains a touch of summer, perfect for outdoor activities. This month marks a gradual cooling trend, as both the average temperature of 21°C (70°F) and the dip in nighttime temperatures hint at the impending fall season. As the days shorten and the leaves begin to turn, September in Lin'an offers a delightful blend of warmth and refreshment, inviting residents and visitors alike to enjoy the charm of early autumn.
In September, Lin'an experiences a notable shift in precipitation patterns, receiving 152 mm (6.0 in) of rain over 22 days. This drop continues from the peak of the rainy season seen in July and August, where the city grappled with an impressive 297 mm and 304 mm, respectively. While September's precipitation represents a significant volume, it marks a transition to drier months ahead, particularly when compared to the 108 mm (4.3 in) recorded in April. The month serves as a pivotal point in the annual cycle, as the once-dominant summer rains begin to taper off, allowing Lin'an to prepare for the cooler, less humid autumn days that follow.
In September, Lin'an experiences a humidity level of 81%, which marks a slight decrease from the peak months of July and August, both reaching a high of 90%. This drop indicates the onset of the dry season as the region transitions from the sweltering summer months. However, September still maintains a relatively high humidity compared to other months, especially when viewed alongside the 57% recorded in January. Following this peak, the humidity gently wanes through October, showcasing a trend of gradual dryness as autumn approaches. The progression reflects Lin'an's shift from the intense humidity of summer toward the more temperate conditions of fall, making September a unique blend of lingering warmth and the promise of cooler days ahead.
In September, Lin'an, China, continues to experience intense sunshine, with a UV Index of 14 that falls within the extreme exposure category. This is in line with the previous summer months, indicating a consistent pattern of high UV levels. Residents and visitors should be particularly cautious, as the risk of sunburn is significant, with a burn time of just 10 minutes. The trend observed from March to September, characterized by sustained extreme levels, reflects the importance of sun protection during this period. As the year progresses, the UV Index does show a slight decrease in intensity moving towards October, but for now, staying protected is essential. For more detailed UV information, check out Lin'an UV Index.
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September in Lin'an, China, welcomes a gentle transition into autumn, showcasing an impressive 295 hours of sunshine. As summer wanes, the city enjoys more sun than in October and November, but slightly fewer hours than the peak brightness of May, which boasts a remarkable 327 hours. This month’s sunshine reflects the overall upward trend in daylight that Lin'an experiences from January to May, followed by a gradual decline through the summer. With lush landscapes basking in warm light, September serves as a perfect bridge between the vibrant summer months and the cooler autumn days, inviting both residents and visitors to revel in the lingering warmth.
In Lin'an, China, the likelihood of sunny weather in September stands at 40%, providing a noteworthy uptick compared to the summer months. Following a notably low chance of sun in June and July—only 14%—conditions begin to improve significantly as the season transitions to autumn. While September’s sunny outlook is more promising than both the peak of summer and the months preceding it, it still reflects a slight decline from the highs of early spring. This pattern suggests that while early fall offers a moderate chance for clear skies, September remains somewhat of a transitional month, hinting at the impending coolness of October, which further drops the likelihood of sunshine to 22%.
As the summer months fade in Lin'an, China, September brings a gentle transition with 12 hours of daylight. This month mirrors the daylight duration of both April and August, indicating a harmonious balance as daylight begins to wane. Following a season of abundant light, where May through July bask in a full 13 hours, the shift to shorter days in October unveils the approaching autumn. With each passing month, the rhythm of daylight gradually dances between 10 and 13 hours, encapsulating the captivating seasonal changes this region experiences throughout the year.
As September settles in Lin'an, the wind takes a gentle turn, averaging a modest 1.4 m/s (3 mph). This slight decline in wind speed, mirroring the calmer conditions of July and August, highlights a transition towards the quieter months of fall. Throughout the year, Lin'an experiences its highest winds in March, peaking at 2.5 m/s (6 mph), before drifting to a more tranquil pace as summer fades. The gradual reduction in wind speed not only reflects the changing seasons but also creates a serene atmosphere, inviting residents and visitors alike to bask in the soft caress of autumn breezes. As the air cools and the landscape transforms, the whispering winds of September usher in a period of reflection and peace, setting the perfect backdrop for autumn's unfolding beauty.
Weather in Lin'an varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Lin'an, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. September enjoys mild temperatures, with averages around 21°C (70°F) and highs reaching 30°C (86°F), accompanied by high humidity levels of 81% and considerable rainfall of 152 mm (6.0 in) over 22 days. In contrast, January is much cooler, with an average temperature of 12°C (54°F), and highs peaking at 23°C (74°F). The winter month experiences significantly less precipitation, totaling only 46 mm (1.8 in) over just 6 days, along with lower humidity at 57%. For more specific details on the January weather, you can visit Lin'an weather in January.
September and February present stark contrasts in weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 30°C (86°F), with an average of 21°C (70°F). The month is characterized by higher humidity at 81% and significant precipitation totaling 152 mm (6.0 in) across 22 rainy days. In contrast, February is cooler, with temperatures spanning from a chilly 1°C (35°F) to a mild 25°C (78°F), averaging 13°C (56°F). This month sees much less rainfall, with only 43 mm (1.7 in) over just 7 days and lower humidity at 67%. For more details on February weather, you can visit Lin'an weather in February.
In September, the weather tends to be warmer and more humid compared to March, with average temperatures around 21°C (70°F) and maximums reaching up to 30°C (86°F). This month also experiences significant rainfall, with about 152 mm (6.0 in) of precipitation spread over 22 days, contributing to a high humidity level of 81%. In contrast, March is cooler, with average temperatures at 17°C (62°F) and lows of 7°C (45°F), while highs can still reach 29°C (85°F). Precipitation is considerably lower in March at 56 mm (2.2 in) over just 12 days, resulting in a more moderate humidity of 58%. For more detailed information, you can check Lin'an weather in March.
Comparing the weather in September and April reveals notable differences in temperature and humidity. September features a warmer average temperature of 21°C (70°F) with a maximum reaching 30°C (86°F), while April has a cooler average of 18°C (66°F) and a similar maximum of 31°C (88°F). Additionally, September experiences higher humidity at 81% and significantly more rainfall, with 152 mm (6.0 in) of precipitation over 22 days compared to April's 108 mm (4.3 in) over just 15 days. For further details, you can check out Lin'an weather in April.
In comparing the weather of September and May, we see some notable differences. September tends to be slightly warmer overall, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 30°C (86°F), while May has a more moderate range of 10°C (51°F) to 33°C (92°F). Both months share the same average temperature of 21°C (70°F), but September is characterized by a higher level of humidity at 81% compared to May's 69%. Additionally, September experiences more precipitation, with 152 mm (6.0 in) spread over 22 days, contrasting with May's 87 mm (3.4 in) over 16 days. For a closer look at weather specifics during this time, you can check Lin'an weather in May.
In comparing September and June weather, we see some notable differences. September tends to be cooler, with a minimum temperature of 13°C (55°F) compared to June's 17°C (62°F), although both months share a maximum temperature of around 30°C (86-87°F). Precipitation is higher in June, totaling 182 mm (7.2 in) over 25 days, while September sees 152 mm (6.0 in) over 22 days. Humidity levels are quite similar, with September at 81% and June slightly higher at 83%. For detailed information about June weather, you can check Lin'an weather in June.
When comparing the weather in September to that of July, we find that both months experience similar maximum temperatures, hovering around 30°C (86°F). However, September offers cooler minimum temperatures, dropping to 13°C (55°F) compared to July’s minimum of 17°C (62°F), which results in a slightly lower average temperature of 21°C (70°F) in September, against July's average of 22°C (71°F).
Precipitation also varies significantly between the two months; September sees 152 mm (6.0 in) of rainfall over 22 days, whereas July is much wetter, averaging 297 mm (11.7 in) over 28 days. This difference contributes to July's higher humidity level of 90%, compared to September's 81%.
For a more detailed look at July's weather, refer to Lin'an weather in July.
In comparing the weather patterns of September and August, we can see notable differences. September experiences a slightly cooler temperature range with a minimum of 13°C and a maximum of 30°C, while August maintains warmer temperatures, with a minimum of 16°C and a maximum of 31°C. The average temperature in September is 21°C, compared to 22°C in August. Precipitation is significantly lower in September, totaling 152 mm over 22 days, whereas August sees 304 mm spread across 28 days, indicating that August is not only wetter but also more humid, with an average humidity of 90% compared to September's 81%. For more detailed insights, you can check Lin'an weather in August.
September's weather is characterized by warmer temperatures, with a minimum of 13°C (55°F) and an average of 21°C (70°F), peaking at 30°C (86°F). It experiences higher precipitation at 152 mm (6.0 in) over 22 days, along with higher humidity at 81%. In contrast, October brings cooler conditions, with a minimum of 10°C (50°F), an average of 18°C (65°F), and a maximum of 28°C (83°F). The rainfall decreases to 112 mm (4.4 in) over 19 days and humidity drops to 75%. This shift reflects a transition from the summer heat of September to the milder autumn climate of October. For more details, see Lin'an weather in October.
September and November exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 30°C (86°F), with an average of 21°C (70°F). The month is characterized by higher precipitation, totaling 152 mm (6.0 in) over 22 days, and a high humidity level of 81%. In contrast, November sees cooler temperatures, with a minimum of 6°C (44°F) and a maximum of 27°C (81°F), averaging 15°C (60°F). Precipitation is significantly lower at 35 mm (1.4 in) over just 8 days, and humidity also decreases to 74%. For a more detailed comparison of November weather, check out Lin'an weather in November.
In September, the weather is quite warm, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 30°C (86°F) and an average of 21°C (70°F). This month also experiences significant rainfall, with around 152 mm (6.0 in) over 22 days, contributing to a high humidity level of 81%. In contrast, December sees much cooler temperatures, with a minimum of 0°C (32°F) and an average of 12°C (54°F), while the maximum reaches 23°C (74°F). Precipitation drops significantly to 42 mm (1.7 in) over just 7 days, and humidity decreases to 69%. For more detailed information, check out Lin'an weather in December.
As September unfolds in Lin'an, it brings a distinct shift in the weather that sets it apart from the drier summer months. With a comfortable average temperature hovering around 21°C (70°F), the warmth of the day contrasts with cooler nights, creating a refreshing ambiance. However, one can expect considerable humidity at 81%, which adds a rich, moist quality to the air. This month is marked by frequent rainfall, as Lin'an experiences around 152 mm (6.0 in) over 22 days, making it one of the wetter periods of the year. These conditions, while perfect for the lush greenery of the region, highlight September's unique character within Lin'an's climate tapestry. For a more detailed look at how these elements fit into the overall climate pattern, visit Lin'an Climate.