Last updated: August 21, 2025
In Tiantai, China, September offers a warm transition into autumn, with maximum temperatures reaching 35°C (96°F) and an average of 23°C (74°F). This month experiences a blend of sun and rain, yielding an impressive total precipitation of 160 mm (6.3 in) over approximately 16 days, contributing to the region’s lush landscapes. Coupled with high humidity levels at 84%, September is a month of vibrant natural beauty, though visitors should be prepared for occasional rainfall while enjoying the scenic charm of Tiantai.
In September, Tiantai, China, experiences a delightful transition as temperatures begin to cool from the intense summer heat. With a minimum temperature of 15°C (60°F) and an average hovering around 23°C (74°F), the climate is comfortably warm yet refreshing. Daytime highs reach up to 35°C (96°F), allowing for plenty of outdoor activities before the cooler months set in. This month marks a subtle shift into autumn, as the temperatures gradually drop compared to the sweltering heat of July and August, creating an inviting atmosphere that invites both locals and travelers to enjoy the picturesque landscapes during this vibrant season.
In September, Tiantai, China experiences a significant amount of rainfall, tallying 160 mm (6.3 in), consistent with the precipitation of the preceding months of July and August. This steady downpour contributes to the region's lush landscapes, as the weather remains moist with rain falling on 16 days throughout the month. Interestingly, September's precipitation mirrors that of June, maintaining a rhythm in the seasonal cycle that prepares the area for the transitioning months ahead. This trend emphasizes an overall reliability in autumn rains, paving the way for a gradual decrease in moisture as October approaches, where the precipitation is predicted to drop to 121 mm (4.7 in).
In September, Tiantai, China, experiences a notable shift in humidity, registering at 84%. This figure highlights a slight decrease from the peak of 87% seen in August, yet it remains significantly higher than the winter months, reflecting a humid and transitional late summer. The trend throughout the year illustrates a gradual rise in humidity from January's 72% to the summer's highs, peaking in July and August, before tapering off in the fall. As September comes to a close, the air retains a comfortable moisture level that sets the scene for the forthcoming changes of autumn.
In September, Tiantai experiences a UV Index of 10, placing it in the very high exposure category, with a burn time of just 15 minutes. This marks a slight decrease from the extreme levels observed during the peak summer months of July and August, which reached an index of 13 and 12, respectively. However, as fall approaches, the UV Index remains significant, continuing the trend of high sun exposure seen earlier in the season. It's essential for residents and visitors alike to stay vigilant about sun protection, especially with the potential for quick skin damage. You can find more information on safe sun practices at Tiantai UV Index.
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September in Tiantai, China, brings a delightful transition from the intense summer sunshine of July and August, which bask in an impressive 296 and 308 hours of sunlight, respectively. As the seasons shift, September sees a moderate decline, providing 215 hours of sunshine, perfect for enjoying the lingering warmth before autumn’s arrival. This month typically signals a turning point, as it dips from the peak summer totals while still offering ample sunshine, which is favored for outdoor adventures. Following September, the sunlight continues to decrease, with October bringing only 142 hours, marking a significant change as winter approaches. Overall, Tiantai's September showcases a beautiful blend of warmth and light, inviting residents and visitors alike to embrace the last rays of summer.
In Tiantai, China, September stands out as a notable month for sunny weather, boasting a 37% chance of sunshine. This is a welcomed increase compared to the preceding months, where the likelihood often hovers below 30%. The transition into September signals a shift from the warmer summer months, where July leads with a similar 31% chance of sun, down to August's 25%. As autumn approaches, the higher probability of sunny days in September enhances its allure, making it a prime time for outdoor activities and exploration. This trend showcases September as a sweet spot in the year, perfectly balancing warmer weather with increased sunshine.
As September arrives in Tiantai, China, the daylight hours begin to taper off, offering 12 hours of light that bridges the vibrant summer and the cooler fall months. This slight decrease follows a peak in June when daylight reaches its longest at 14 hours. In the subsequent months, daylight gradually dwindles, shedding a few hours through October and November until it stabilizes at 10 hours during the winter months of January and December. This trend highlights the rhythmic ebb and flow of daylight throughout the year, inviting residents to relish the lingering warmth of September before embracing the seasonal transition into autumn.
As September arrives in Tiantai, China, a subtle shift in the atmosphere can be felt, mirrored by a gentle rise in average wind speed to 1.6 m/s (4 mph)—the highest of the year. This increase signals a transition as summer warmth begins to give way to the crispness of autumn. Unlike the steady calm of the preceding months, where wind speeds hovered around 1.3 m/s, September introduces a refreshing breeze that invigorates the landscape and beckons outdoor exploration. Following this month, the winds settle back down to familiar levels, echoing the seasonal rhythm. The gradual fluctuations in wind speed throughout the year reveal a harmonious dance of nature, reflecting the changing seasons in this serene Chinese locale.
Weather in Tiantai varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Tiantai, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present striking contrasts in weather. In September, temperatures range from a minimum of 15°C (60°F) to a scorching maximum of 35°C (96°F), accompanied by high humidity levels at 84% and significant rainfall of 160 mm (6.3 in) over 16 days. In contrast, January experiences much cooler temperatures, with a minimum of -2°C (29°F) and an average of just 7°C (45°F). Precipitation is also lower, totaling 34 mm (1.3 in) over only 8 days, combined with relatively lower humidity at 72%. For details about the weather in January, you can check Tiantai weather in January.
September and February present stark contrasts in weather conditions. September typically boasts warmer temperatures, ranging from a minimum of 15°C (60°F) to a maximum of 35°C (96°F), with an average of 23°C (74°F). This month also experiences higher humidity at 84% and significant rainfall, totaling around 160 mm (6.3 in) across 16 days. In contrast, February is much cooler, with temperatures dipping to a minimum of 0°C (31°F) and peaking at 25°C (77°F), averaging just 9°C (48°F). Precipitation decreases significantly to 52 mm (2.1 in) over approximately 9 days, coupled with slightly lower humidity at 76%. For a closer look at February's weather patterns, you can visit Tiantai weather in February.
September and March present contrasting weather conditions. In September, temperatures can range significantly, with a minimum of 15°C (60°F) and a maximum reaching up to 35°C (96°F), resulting in an average of 23°C (74°F). The month is characterized by high humidity levels at 84% and considerable rainfall, averaging 160 mm (6.3 in) over 16 days. In contrast, March sees cooler temperatures, with a minimum of 4°C (40°F) and an average of 14°C (57°F), peaking at 31°C (88°F). Although March is less rainy, with 103 mm (4.1 in) of precipitation over 15 days, humidity remains relatively high at 80%. For those interested in more detailed weather patterns, you can visit Tiantai weather in March.
In September, temperatures typically range from a minimum of 15°C (60°F) to a maximum of 35°C (96°F), with an average of 23°C (74°F). The month experiences significant rainfall, accumulating about 160 mm (6.3 in) over approximately 16 days, contributing to a high humidity level of 84%. In contrast, April boasts cooler temperatures, with a minimum of 8°C (46°F) and a maximum of 33°C (92°F), averaging 18°C (64°F). The precipitation in April is slightly lower at 132 mm (5.2 in) over around 14 days, and humidity is comparatively lower at 77%. For more detailed insights into the weather conditions during April, visit Tiantai weather in April.
In comparing the weather between September and May, both months experience similar maximum temperatures of up to 35°C (96°F), but September boasts a higher average temperature of 23°C (74°F) compared to May's 21°C (70°F). While May has slightly lower minimum temperatures, it still maintains a comfortable range, with lows of 12°C (54°F). Precipitation is higher in May, with 191 mm (7.5 in) falling over 19 days, whereas September sees 160 mm (6.3 in) over 16 days. Humidity levels are relatively consistent, with September at 84% and May at 82%. For more detailed insights, you can visit Tiantai weather in May.
In comparing the weather in September and June, both months exhibit similar temperature ranges, with September having a minimum of 15°C (60°F) and an average of 23°C (74°F), while June's temperatures start slightly higher with a minimum of 16°C (61°F) and an average of 24°C (76°F). The maximum temperatures are comparable as well, peaking at 35°C (95°F) in June and slightly higher at 35°C (96°F) in September. Precipitation levels are identical, both months recording 160 mm (6.3 in) of rain over 16 to 17 days, making for a similarly damp experience. Humidity is also quite close, with September at 84% and June at 85%. For a more detailed look at the weather specifics for June, you can visit Tiantai weather in June.
In comparing the weather patterns of September and July, September tends to be slightly cooler, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (96°F), while July sees higher averages, with minimums of 20°C (69°F) and maximums reaching up to 38°C (101°F). Both months experience significant rainfall, with September recording approximately 160 mm (6.3 in) of precipitation compared to July's 188 mm (7.4 in), though they both have around 16 days of rainfall. Humidity levels remain similar, with September at 84% and July slightly higher at 85%. For a detailed look at how temperatures and conditions vary in July, check out Tiantai weather in July.
In comparing the weather of September and August, September tends to be cooler, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (96°F), while August is notably warmer, featuring a higher average temperature of 28°C (83°F) and maximums soaring up to 39°C (102°F). Both months experience the same level of precipitation, at 160 mm (6.3 in), but September has more rainy days, totaling 16 compared to August's 12 days. Humidity levels are slightly lower in September at 84%, compared to August's 87%. For more details on August's weather specifically, you can check Tiantai weather in August.
September and October exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 35°C (96°F), with an average of 23°C (74°F). The month is characterized by high humidity at 84% and considerable rainfall, totaling 160 mm (6.3 in) over 16 days. Conversely, October sees a drop in temperatures, with a minimum of 9°C (49°F) and an average of 18°C (64°F), peaking at 34°C (93°F). Rainfall decreases to 121 mm (4.7 in) over 14 days, and humidity levels slightly lower to 81%. For more specifics on the weather in October, visit Tiantai weather in October.
September and November present a stark contrast in weather conditions. In September, temperatures soar with a minimum of 15°C (60°F) and an average of 23°C (74°F), peaking at a high of 35°C (96°F). The month is also characterized by high humidity at 84% and significant rainfall, with 160 mm (6.3 in) falling over 16 days. In comparison, November experiences much cooler temperatures, with a minimum of 3°C (38°F), an average of 13°C (55°F), and a maximum of 24°C (76°F). Precipitation drops to 69 mm (2.7 in) over 11 days and humidity remains slightly elevated at 86%. This shift illustrates the transition from the warm and humid conditions of early fall to the cooler and more moderate weather characteristic of late autumn. For more details, check out Tiantai weather in November.
September offers a warm and humid climate, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (96°F) and an average of 23°C (74°F). The month is characterized by substantial rainfall, totaling 160 mm (6.3 in) across 16 wet days, and a humidity level of 84%. In contrast, December presents a much cooler atmosphere, with temperatures dropping to a minimum of 0°C (32°F) and peaking at 18°C (64°F), averaging just 8°C (47°F). Rainfall decreases significantly to 34 mm (1.3 in), spread over 9 days, with humidity slightly lower at 81%. For more detailed insights into December weather, you can check Tiantai weather in December.
As September arrives in Tiantai, the weather transforms into a unique blend of warmth and humidity, setting it apart from the cooler months that precede it. With average temperatures hovering around a comfortable 23°C, the days can still heat up significantly, peaking at a sweltering 35°C. This month also experiences notable rainfall, with approximately 16 days seeing precipitation, contributing to a lush landscape fueled by the 160 mm of rain. The high humidity levels at 84% can make the air feel quite warm and sticky, emphasizing the transition towards the more refreshing days of autumn. For more comprehensive insights into Tiantai's weather patterns, please visit Tiantai Climate.