Last updated: August 21, 2025
Located in the breathtaking region of Tianshan, China, September brings a blend of warmth and occasional rain, perfect for those seeking outdoor adventures. During this month, temperatures can soar to a maximum of 35°C (95°F), yet the average temperature settles comfortably at 17°C (63°F). With a minimum temperature dropping to 0°C (32°F), early mornings and late evenings can be refreshingly cool. While rainfall is modest at 49 mm (1.9 in), most of it falls over just 6 days, creating a lush landscape. Coupled with a humidity level of 78%, early autumn in Tianshan offers a unique experience of transitioning seasons, inviting visitors to immerse themselves in nature’s beauty.
As September unfolds in Tianshan, China, it marks a transition from the intense summer heat to the early hints of autumn. Temperatures during this month are characterized by a minimum of 0°C (32°F), an average of 17°C (63°F), and a comfortable maximum reaching 35°C (95°F). This showcases a notable decline from the scorching highs of July and August, where temperatures soared above 40°C (104°F). The month brings a refreshing shift, inviting cooler mornings and crisp evenings, as the region prepares for the colder months ahead. With the average temperature settling at a pleasant 17°C, September becomes a perfect time for outdoor activities, allowing visitors to enjoy the stunning landscapes before winter takes hold.
September brings a notable transition in Tianshan, China, with precipitation amounting to 49 mm (1.9 in) over six days. This marks a shift from the heavy rains of July and August, where the region experienced a cumulative 224 mm (8.8 in) of rainfall, the highest of the year. As summer gives way to autumn, September's precipitation not only sustains the lush surroundings but also signals a decrease in rainy days compared to the peak summer months. Despite the decline, this moderate rainfall plays a crucial role in preparing the landscape for the drier months ahead, emphasizing the delicate balance of seasonal change in this picturesque region.
In September, Tianshan, China, experiences a notable drop in humidity compared to the peak of summer, yet maintains a relatively high level at 78%. This month showcases a transition where the intense humidity of August begins to wane, reflecting a consistent trend observed from the preceding months. The summer's oppressive moisture gives way to the mild dry heat of early autumn, as the region moves toward more temperate conditions. With humidity levels still elevated compared to the winter months—where readings can dip to as low as 52%—September remains a humid period, embodying the lingering warmth of the season before the coolness of October takes over. Overall, the humidity in Tianshan demonstrates a clear cycle, with summer months peaking, followed by a gradual decline as the year progresses into fall.
In September, the UV Index in Tianshan, China reflects a notable shift from the intense summer months, dropping to a moderate level of 7, categorized as high exposure. This indicates that while the burning potential remains significant, visitors can enjoy outdoor activities with a longer burn time of approximately 25 minutes before significant skin damage occurs. This change is part of a broader trend as the region transitions from the very high UV levels of May through August, where the burn time shrank to just 15 minutes. As autumn approaches, the diminishing UV intensity offers a more forgiving environment for outdoor enthusiasts. For those planning to bask in the sun, it’s still essential to stay vigilant about sunscreen use to protect against potential harm. For more detailed insights, check out Tianshan UV Index.
UV Risk Categories
As summer fades into autumn, September brings a charming 290 hours of sunshine to the majestic Tianshan region of China. This month, while witnessing a decrease in sunlight compared to the peak summer months of June and July—each boasting 348 hours—still offers a generous share of golden rays. Interestingly, September's hours of sunshine signify a gentle transition, echoing the steady decline that begins in the vibrant days of August, which enjoyed 319 hours. The data reflects a clear trend as days grow shorter, leading into the cooler months of the year, yet September remains a lovely time to savor the lingering warmth before the crispness of October sets in.
In the Tianshan region of China, September has a 44% chance of sunny weather, a modest figure that continues the trend of declining sunshine from the summer months. Following the peak of 76% in January, the likelihood of sunny days wanes as spring and summer arrive, with the lowest point in July at just 29%. While September does not see a dramatic return to clear skies, it closely follows the relatively cool and unpredictable August, which holds a 46% chance of sun. As autumn approaches, residents and visitors can expect a gradual increase in sunny days again, with October's likelihood jumping to 67%, signaling a seasonal shift back toward brighter weather.
As autumn approaches in Tianshan, China, September brings a gentle transition in daylight duration, offering about 12 hours of light. This marks a gradual decline from the summer peak of 15 hours in June and July, signaling the shift towards shorter days. Following the vibrant growth of late spring and summer, September's light reflects a balance, coasting between the lush brightness of August's 13 hours and the impending reductions of October's 10 hours. The rhythm of the months showcases a beautiful dance of light, where each transition prepares the landscape for the quiet reflection of winter ahead.
As September rolls into Tianshan, the wind whispers gently, maintaining a calm average speed of 2.8 m/s (6 mph), mirroring the serene breezes of the preceding months. This trend of more tranquil winds continues from the summer, when July and August saw similar gentle gusts, creating a soothing atmosphere perfect for reflective moments in nature. However, as autumn approaches, one can expect a gradual increase in wind speed, reminiscent of the energizing breezes that characterize July's peak summer transition into fall. With October promising a rise to 3.4 m/s, the winds will soon begin to stir, hinting at the dynamic shifts of the season ahead.
Weather in Tianshan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Tianshan, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January showcase stark contrasts in weather conditions. In September, temperatures range from a mild 0°C (32°F) at the minimum to a scorching 35°C (95°F) at the maximum, with an average of 17°C (63°F). The month typically sees some rain, averaging 49 mm (1.9 in) over about 6 days, accompanied by a high humidity level of 78%. In contrast, January is marked by frigid temperatures, with a minimum of -28°C (-18°F) and a maximum of just 6°C (43°F), averaging -12°C (11°F). This winter month is notably dry, receiving only 1 mm (0.0 in) of precipitation over 0 days, and features lower humidity at 68%. For more detailed weather insights, you can check out Tianshan weather in January.
September and February weather present a striking contrast. In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 35°C (95°F), with an average of 17°C (63°F). The month sees about 49 mm (1.9 in) of precipitation over six days, and humidity levels are relatively high at 78%. In stark contrast, February features a much colder climate, with temperatures dropping to a minimum of -25°C (-12°F) and peaking at 14°C (57°F), averaging at -9°C (17°F). The precipitation in February is minimal, at just 3 mm (0.1 in) over zero days, and the humidity is lower at 59%. For a detailed look at February's conditions, you can refer to Tianshan weather in February.
In comparing the weather of September and March, there's a striking contrast in both temperatures and precipitation patterns. September boasts a warm average temperature of 17°C (63°F), with highs reaching up to 35°C (95°F) and relatively high humidity at 78%. In contrast, March experiences frigid temperatures, with an average low of -18°C (0°F) and an average high of 27°C (81°F), creating a chilly environment. Precipitation is also notably different; September sees 49 mm (1.9 in) over approximately 6 days, while March is much drier, receiving only 8 mm (0.3 in) spread over just 1 day. For more details about the specific conditions in March, you can visit Tianshan weather in March.
In comparing the weather of September and April, a notable contrast emerges. September boasts warmer temperatures with a minimum of 0°C (32°F) and an average of 17°C (63°F), reaching as high as 35°C (95°F). In contrast, April experiences much cooler conditions, with temperatures dipping to a minimum of -7°C (19°F) and an average of 10°C (51°F), peaking at 32°C (91°F). Precipitation is also considerably different; September sees more rain with 49 mm (1.9 in) over 6 days, while April is relatively dry, receiving only 8 mm (0.3 in) over 2 days. Additionally, September has a higher humidity level at 78%, compared to April's 52%. For more details on April weather, you can visit Tianshan weather in April.
September and May both feature an average temperature of 17°C (63°F), yet their extremes and overall weather patterns differ significantly. In September, temperatures can reach a maximum of 35°C (95°F), while May boasts even higher potential peaks, with a maximum of 41°C (105°F). Precipitation is slightly more prevalent in September, with 49 mm (1.9 in) over 6 days compared to May's 36 mm (1.4 in) over just 4 days. Additionally, humidity levels are higher in September at 78%, while May enjoys a drier atmosphere with only 57% humidity. For a more detailed look at May conditions, you can check out Tianshan weather in May.
In comparing the weather between September and June, September experiences cooler temperatures with a minimum of 0°C (32°F) and an average of 17°C (63°F), while June tends to be warmer, boasting a minimum of 9°C (48°F) and an average of 23°C (73°F). June can reach maximum temperatures of 40°C (104°F), significantly higher than September's peak of 35°C (95°F). Precipitation levels show September with 49 mm (1.9 in) over 6 days, which is slightly higher than June's 29 mm (1.1 in) over 5 days. Humidity is also higher in September at 78%, compared to June's 71%. For more detailed insights, visit Tianshan weather in June.
The weather in September shows a significant cool-down compared to July, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 35°C (95°F), while July boasts much warmer conditions, with a minimum of 13°C (57°F) and a peak temperature of 41°C (106°F). July also experiences higher precipitation, totaling 107 mm (4.2 in) over 10 days, compared to September’s 49 mm (1.9 in) over just 6 days. Despite the heat and increased rainfall in July, humidity remains consistent at 78% in both months, providing a similarly muggy atmosphere. For more details on July weather, visit Tianshan weather in July.
In comparing the weather conditions of September and August, September presents a more diverse temperature range, with minimums of 0°C (32°F) and maximums reaching 35°C (95°F), averaging around 17°C (63°F). In contrast, August is warmer overall, showcasing an average temperature of 22°C (72°F) with extremes ranging from 5°C (41°F) to a peak of 38°C (100°F). Rainfall is significantly higher in August, totaling 117 mm (4.6 in) over 11 days, compared to September, which experiences only 49 mm (1.9 in) over 6 days. Additionally, humidity levels are slightly elevated in August at 84%, while September sees a lower humidity level of 78%. For a detailed look at August's weather, you can visit Tianshan weather in August.
In September, the weather is characterized by a wider temperature range with a minimum of 0°C (32°F) and an average of 17°C (63°F), reaching a maximum of 35°C (95°F). The month sees more precipitation, with a total of 49 mm (1.9 in) over 6 days and a humidity level of 78%. In contrast, October experiences cooler temperatures, dipping to a minimum of -5°C (24°F) and averaging around 8°C (47°F), with highs reaching 33°C (91°F). This month is notably drier, with only 6 mm (0.2 in) of precipitation occurring over just 1 day and slightly lower humidity at 75%. For more detailed insights, you can check Tianshan weather in October.
September and November present contrasting weather patterns. In September, temperatures can range from a chilly 0°C (32°F) at night to a warm 35°C (95°F) during the day, with an average of 17°C (63°F). The month sees moderate precipitation of 49 mm (1.9 in) spread over approximately 6 days, accompanied by high humidity levels at around 78%. In stark contrast, November brings much colder conditions, with temperatures dipping to a minimum of -17°C (2°F) and averaging -2°C (29°F), while peaking at 19°C (66°F). Precipitation significantly decreases to just 11 mm (0.4 in) over only 2 days, and humidity lowers to 53%. For more details on November weather, visit Tianshan weather in November.
In September, the weather exhibits a wide range of temperatures, with minimums around 0°C (32°F) and highs reaching a warm 35°C (95°F), contributing to an average of 17°C (63°F). The month experiences moderate precipitation of 49 mm (1.9 in) over 6 days, along with a high humidity level of 78%. In contrast, December sees a dramatic shift, with temperatures plunging to a minimum of -23°C (-9°F) and an average of -11°C (13°F), resulting in a maximum of only 11°C (52°F). This month is characterized by minimal precipitation at just 2 mm (0.1 in) over 0 days, with humidity dropping to 59%. This stark contrast highlights the transition from the warm, humid conditions of September to the cold, dry month of December. For more detailed information about December weather, check this link: Tianshan weather in December.
As September arrives in Tianshan, the weather experiences a notable shift from the extremes of summer. With temperatures cooling to a comfortable average of 17°C, the month offers a refreshing break from the scorching highs of July and August. Though the days can still reach up to 35°C, the nights drop significantly, dipping to near freezing, which introduces a crispness to the air. September also sees an increase in humidity at 78%, coupled with a modest amount of rainfall occurring on about six days, making the landscape lush and vibrant. This transitional month sets the stage for autumn, inviting visitors to explore the stunning natural beauty of the region. For a detailed look at Tianshan's climate patterns, check out Tianshan Climate.