Last updated: August 21, 2025
September in Nantong, China, showcases a dynamic blend of warm temperatures and occasional rain, making it a transitional month as summer winds down. Daily highs can soar up to a maximum of 41°C (106°F), while the average temperature hovers around a comfortable 27°C (80°F). Nights bring a welcome respite with temperatures dropping to a minimum of 17°C (62°F). This month, the city experiences about 97 mm (3.8 in) of rainfall spread across 13 days, contributing to a humidity level of approximately 70%. Travelers should prepare for both sun-soaked days and refreshing showers, making it a uniquely vibrant time to explore Nantong.
As September rolls into Nantong, China, residents experience a noticeable shift towards warmer days, with temperatures ranging from a minimum of 17°C (62°F) to a scorching maximum of 41°C (106°F). The average temperature hovers around 27°C (80°F), creating a summery ambiance that lingers before autumn sets in. This month serves as a bridge between the intense heat of summer and the cooler fall days ahead, marking a period where the warmth is still potent but begins to hint at the transition to more temperate weather. With September’s mix of warmth, it’s a perfect time for outdoor activities, making the most of the lingering sun before the cooler autumn winds start to blow.
September in Nantong, China, marks a transitional period in the city's weather patterns, bringing a moderate precipitation total of 97 mm (3.8 in) over approximately 13 days. This amount is notably less than the preceding months of June and August, which are characterized by heavy rains, yet it still contributes to the overall wet season experienced earlier in the summer. As the summer heat begins to wane, September's rainfall provides a refreshing respite, hinting at the impending autumn while maintaining the region's lush landscape. The decrease in both total precipitation and rainy days compared to August suggests a gradual shift toward drier conditions, setting the stage for the milder months ahead.
In September, Nantong, China, experiences a dip in humidity, dropping to 70% as summer transitions into autumn. This marks a notable decrease from the peak levels seen during the warmer months; May and July reach high points of 85% and 84%, respectively. Although the air remains relatively moist compared to the drier winter months, this refreshing drop highlights the seasonal shift. After September, humidity gradually increases again, averaging 73% in October and 77% in November. This pattern underscores the region's characteristic climate, where humidity remains a defining factor throughout the year, reflecting the warm, moisture-rich influences of its subtropical environment.
In September, Nantong, China, experiences a UV Index of 11, categorized as extreme, with a burn time of just 10 minutes. This marks a slight decline from the intense summer months of July and August, which both reached a peak Index of 13. However, while September maintains a high level of UV exposure, the earlier months of the year, such as January's 7 and February's 9, seem far behind in intensity. As the seasons transition into autumn, it's crucial to remain vigilant against sun exposure, especially with rates still classified as extreme. For more detailed insights and real-time updates, visit Nantong UV Index.
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September in Nantong, China, offers a delightful continuation of summer with 278 hours of sunshine, a pleasant decline from the peak of 309 hours in July. This month transitions into autumn, maintaining a warm and inviting atmosphere before October's 249 hours of sunlight. Notably, September's sunshine showcases the region's characteristic warmth, as it follows a steady increase from 176 hours in January to a peak in mid-summer, illustrating how the days lengthen and the sun shines brighter as the months progress. As daylight gradually wanes into the fall, September stands out as a vibrant reminder of summer's lingering embrace.
In Nantong, China, September offers a notable uptick in sunny weather, with a 45% chance of sun—significantly higher than the drier summer months of June and July, which see chances as low as 5% and 23%, respectively. While the spring months display narrower windows of sunshine, September’s better outlook marks a refreshing transition into autumn. This period is particularly inviting for outdoor enthusiasts, as the likelihood of clear skies increases compared to the previous summer months and remains favorable through the fall. Overall, September serves as a perfect bridge, inviting both locals and travelers to enjoy the warmth of the sun before it wanes into the cooler months ahead.
As summer transitions to autumn, September in Nantong, China, ushers in a gentle decline in daylight, offering about 12 hours of sunlight. This marks a subtle shift from the pinnacle of 13 hours enjoyed throughout the summer months of June to August. The day's length begins to taper off, signaling the approach of the cooler months ahead. Following a steady increase from the depths of winter, where January only sees 10 hours of daylight, each month gradually builds towards the summer solstice before gracefully retreating. By the time October arrives, daylight will further diminish to 11 hours, continuing the trend of shorter days as the seasons change.
As September arrives in Nantong, China, the winds begin to whisper a gentle lull, averaging 1.6 m/s (4 mph), which is notably lower than the slightly breezier months of July and August. This trend of decreasing wind speed continues from the summer peak of 2.1 m/s (5 mph), moving towards the calmness of the fall. The transition through the year reveals a subtle rhythm in the wind's embrace, with January and December also showcasing higher speeds of 2.1 m/s (5 mph), suggesting a seasonal pattern where late spring and summer invite livelier gusts, while September marks a period of serene stillness. As Nantong eases into autumn, the winds reflect a tranquil shift, preparing the landscape for the brisker breezes that will emerge in October.
Weather in Nantong varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Nantong, focusing on differences in temperature, rainfall, humidity, and UV levels.
September weather is characterized by much warmer temperatures, with averages around 27°C (80°F) and maximums reaching up to 41°C (106°F). The month is also relatively humid, maintaining a level of 70%, and experiences considerable rainfall, totaling 97 mm (3.8 in) over 13 days. In contrast, January brings much cooler conditions, with average temperatures of 12°C (53°F) and a maximum of 30°C (87°F). Precipitation during this month is significantly lower at 42 mm (1.7 in) across just 5 days, and humidity is slightly higher at 73%. Overall, September offers a starkly different climate compared to the more temperate January weather. For more details, you can visit Nantong weather in January.
September and February showcase distinct weather patterns that greatly affect the environment. In September, temperatures range from a minimum of 17°C (62°F) to a scorching maximum of 41°C (106°F), with an average of 27°C (80°F). This month is characterized by relatively high humidity at 70% and significant precipitation, receiving about 97 mm (3.8 in) over 13 days. In contrast, February experiences much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 30°C (86°F), averaging 12°C (53°F). Although February sees slightly less rainfall at 77 mm (3.0 in) over 9 days, the humidity remains relatively high at 73%. For a more detailed insight into February's climate, you can check Nantong weather in February.
In comparing September and March weather, September tends to be significantly warmer, with average temperatures around 27°C (80°F) and maximums soaring up to 41°C (106°F). In contrast, March presents a much cooler climate, averaging 15°C (60°F) with a maximum of 32°C (90°F) and a minimum of just 3°C (37°F). Rainfall is more frequent in March, with 142 mm (5.6 in) falling over 16 days, while September sees 97 mm (3.8 in) over 13 days. Additionally, March has a higher humidity level of 80%, compared to September's 70%. For a more detailed look at March weather, you can visit Nantong weather in March.
When comparing the weather in September and April, notable differences in temperature and humidity become apparent. September sees a much warmer average temperature of 27°C (80°F), with maximums soaring up to 41°C (106°F), while April's average is significantly cooler at 19°C (66°F), peaking at a maximum of 33°C (91°F). Additionally, September experiences a lower humidity level of 70% compared to April's 81%, creating a more humid feel during the latter month. Both months receive similar amounts of precipitation, with September averaging 97 mm (3.8 in) over 13 days and April slightly higher at 112 mm (4.4 in) over the same number of days. For more details on April's climate, you can check out Nantong weather in April.
In comparing the weather between September and May, September tends to be hotter, with average temperatures around 27°C (80°F) and maximums reaching as high as 41°C (106°F). In contrast, May offers a cooler climate, with average temperatures of 23°C (74°F) and maximums peaking at 37°C (100°F). Precipitation levels are also higher in May, totaling 211 mm (8.3 in) over 18 days, compared to September's 97 mm (3.8 in) over 13 days. Additionally, May is characterized by higher humidity at 85%, as opposed to September's 70%. For more details on May weather, you can check Nantong weather in May.
September weather tends to be quite warm, with average temperatures around 27°C (80°F) and a maximum reaching up to 41°C (106°F). Although it remains hot, it is drier than June, with only 97 mm (3.8 in) of precipitation spread over 13 days and humidity averaging 70%. In contrast, June experiences slightly cooler temperatures with an average of 26°C (80°F) and peaks at 37°C (99°F). However, it is significantly wetter, receiving 301 mm (11.8 in) of rainfall over 21 days, and the humidity is noticeably higher at 81%. For more detailed information on June weather, you can check Nantong weather in June.
In comparing the weather of September and July, we observe notable differences in temperature and precipitation. September has a minimum temperature of 17°C (62°F), averaging 27°C (80°F) and reaching a maximum of 41°C (106°F). In contrast, July is generally warmer, with a minimum temperature of 23°C (74°F), an average of 29°C (84°F), and a maximum of 40°C (104°F). Additionally, July experiences more precipitation, with 129 mm (5.1 in) over 17 days, compared to September's 97 mm (3.8 in) over 13 days. Humidity also tends to be higher in July at 84%, compared to 70% in September. For more specific details, you can check Nantong weather in July.
In comparing the weather of September and August, September generally has a slightly lower average temperature, with a minimum of 17°C (62°F) and a maximum of 41°C (106°F), while August sees warmer nights with a minimum of 23°C (74°F) and a maximum of 39°C (103°F). Additionally, September experiences significantly less rainfall, with 97 mm (3.8 in) over 13 days compared to August's 280 mm (11.0 in) across 22 days. Humidity also drops in September to 70%, down from August's higher level of 82%. For more detailed insights on August weather, you can check out Nantong weather in August.
In September, the weather is characterized by significantly warmer temperatures, with a minimum of 17°C (62°F) and an average of 27°C (80°F), peaking at a scorching 41°C (106°F). The month experiences considerable rainfall, totaling 97 mm (3.8 in) over 13 days, and maintains a humidity level of 70%.
In contrast, October ushers in cooler temperatures, with a minimum of 11°C (51°F) and an average of 22°C (72°F), while the maximum temperature drops to 35°C (96°F). Precipitation decreases to 59 mm (2.3 in) spread over 9 days, and humidity slightly rises to 73%.
For more detailed insights into October weather, you can check Nantong weather in October.
September and November present distinctly different weather patterns. In September, temperatures range from a minimum of 17°C (62°F) to a maximum of 41°C (106°F), with an average of 27°C (80°F). The month experiences significant rainfall, totaling 97 mm (3.8 in) over about 13 days, coupled with a relatively high humidity level of 70%. In contrast, November sees cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 32°C (91°F), averaging 18°C (64°F). Precipitation decreases to 69 mm (2.7 in) over just 9 days, and humidity rises slightly to 77%. For more detailed information, you can check out Nantong weather in November.
In September, the weather is typically hot and humid, with temperatures ranging from a low of 17°C (62°F) to a scorching high of 41°C (106°F) and an average temperature of 27°C (80°F). This month also sees significant rainfall, accumulating 97 mm (3.8 in) over 13 days. In contrast, December brings much cooler temperatures, with a minimum of 3°C (37°F), an average of 13°C (56°F), and a maximum of 29°C (85°F). Precipitation drops to just 32 mm (1.3 in) across 6 days, but humidity remains high at 79%. For more detailed information, you can check Nantong weather in December.
As summer transitions into autumn, September in Nantong presents a unique blend of warmth and humidity. This month often experiences higher temperatures than most, with the peak reaching a sweltering 41°C, while maintaining a comfortable average of 27°C. The notable humidity level of 70% keeps the air feeling heavier, perfect for those who thrive in a summer-like atmosphere. However, September also brings a fair share of precipitation, with about 13 days of rain adding a refreshing contrast to the hotter days. This combination of heat and moisture generally makes September more dynamic than other months, offering a last taste of summer before the cooler fall weather sets in. For more detailed insights, check out the Nantong Climate.