Last updated: February 24, 2025
In September, Asheville experiences a mild and welcoming climate, with average temperatures hovering around 20°C (68°F) and peaks reaching a warm 32°C (89°F). The month's cooler lows can drop to about 5°C (41°F), providing a refreshing contrast. While residents and visitors enjoy the beautiful scenery, they should prepare for occasional rainfall, as precipitation totals around 125 mm (4.9 in) across roughly 10 days. With a humidity level of 76%, the air feels lush, making this an ideal time to immerse in Asheville's vibrant outdoors and stunning fall foliage.
In Asheville, September brings a delightful transition into early autumn, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 32°C (89°F). The average temperature sits comfortably at 20°C (68°F), marking a pleasant shift from the sweltering summer days. This month typically showcases a significant rise in warmth, with highs that can still flirt with summer-like conditions, while the cooler nights hint at the approaching fall. As the leaves begin their vibrant transformation, locals and visitors alike can enjoy mild weather perfect for outdoor activities and exploration of this charming city nestled in the Blue Ridge Mountains.
In September, Asheville experiences notable rainfall, with 125 mm (4.9 inches) of precipitation spread across 10 days—a robust figure that reflects the transition into fall. This month ranks just below August, which recorded the highest rainfall of the year. The consistent moisture helps nourish the vibrant foliage that begins to emerge as summer fades. Interestingly, September's precipitation marks the beginning of a slight uptick as the region moves into October, which sees an even higher average of 139 mm (5.5 inches). This steady pattern not only supports the local ecosystem but also prepares residents and visitors alike for the enchanting colors and sounds of autumn in the Blue Ridge Mountains.
Asheville's humidity sees a notable shift throughout the year, showcasing its unique climatic character. In the early months, from January to March, the humidity remains consistently high at 86%, giving a cozy, lush feel to the landscape. As spring unfolds, there’s a slight dip to 82% in April, after which it stabilizes around 85% in May and June. The summer months, particularly July and August, experience a gentle decrease, with humidity falling to 83% and 76%, respectively, offering a breath of fresh air. This trend continues into September, where humidity remains at 76%, signifying a transition into the cooler months that follow. As autumn approaches, a gradual rise is observed again, culminating in the higher levels of 80% in October and 88% in November and December. This cyclical pattern highlights Asheville’s delightful blend of seasonal changes, making it an inviting destination year-round.
As September rolls into Asheville, North Carolina, the UV Index remains a noteworthy 10, categorizing it as very high. This signals a gradual dip from the peak intensity experienced during the summer months, yet outdoor enthusiasts should still exercise caution as burn time is approximately 15 minutes. The trend of increasing UV levels from the early months of the year reaches its apex in April through July, where the index soars to 11, marking it as extreme. As fall approaches, while the UV Index begins to recede, September still demands attention for sun safety. To stay informed about varying UV conditions throughout the year, be sure to check the detailed Asheville UV Index.
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September in Asheville shines with an impressive 289 hours of sunlight, marking a delightful transition as summer begins to fade and autumn sets in. This month captures the essence of changing seasons, offering a perfect balance between the long, sun-drenched days of summer, where July boasts a peak of 347 hours, and the more subdued light of October, which sees a dip to 265 hours. The steady ascent in sunlight from January’s 165 hours to a summer high in July reflects a vibrant growth in energy, with September still basking in the warmth. As the days gradually shorten, the golden hues of fall begin to emerge, making September a sweet spot for outdoor enthusiasts and leaf-peepers alike, who can revel in the serene beauty that Asheville has to offer.
As the summer heat begins to wane, September in Asheville unveils a delightful transition toward autumn, with a notable 50% chance of sunny weather. This marks a peak in sunshine potential for the month, juxtaposed against earlier summer months like June and July, which dip to 31% and 41%, respectively. Interestingly, this upswing not only signifies a break from the sometimes dreary skies of late summer but also aligns closely with the sunnier days of April and the promising outlook of November. Overall, September emerges as a compelling choice for those seeking to enjoy the beauty of the Blue Ridge Mountains under a warm sun, making it an ideal month for outdoor activities and exploration.
As September unfolds in Asheville, the city experiences a gentle transition in daylight duration, with the average sunlight lasting around 12 hours. This marks a slight decrease from the vibrant summer months of June, July, and August, where daylight peaked at 14 hours. As the warmth of summer gives way to the crispness of autumn, September's shorter days hint at the seasonal shift ahead, leading to 11 hours in October and 10 hours in November. This gradual decline in daylight gently reminds residents and visitors to savor the longer, sunlit days before the cozy embrace of shorter, darker months begins.
As September arrives in Asheville, the gentle whispers of the wind begin to shift. With an average wind speed of 1.9 m/s (4 mph), the breezes are softer compared to the earlier months of the year. This slight decrease follows a gradual decline from the higher speeds seen in spring, with the winds lazily drifting through the mountains and valleys. The transition from the peak summer months, which recorded their lowest wind speeds, hints at a coming change as autumn approaches. In contrast to the heavier gusts of winter, September's winds serve as a gentle reminder of the season's transformation, inviting residents and visitors alike to enjoy the crispness in the air as the scenery begins to paint itself in shades of gold and red.
The weather in Asheville changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Asheville and find detailed weather information for every month.
September presents a warm transition from summer, with temperatures ranging from a cool 5°C (41°F) at night to a high of 32°C (89°F) during the day, accompanied by a relatively high humidity of 76% and average precipitation of 125 mm (4.9 in) over approximately 10 days. In contrast, January brings a stark chill, with much lower temperatures averaging around 3°C (38°F), dipping to a minimum of -15°C (5°F) and maxing out at 22°C (72°F). Although January sees slightly less precipitation at 80 mm (3.2 in) across 9 days, the humidity is higher at 86%, giving the winter air a distinctly crisp feel. For more detailed insights on January weather, visit Asheville weather in January.
September and February exhibit stark contrasts in weather patterns. September enjoys a mild range of temperatures with an average of 20°C (68°F), peaking at 32°C (89°F), while February is much cooler, with average temperatures around 6°C (44°F) and a maximum of 25°C (77°F). Both months see a similar amount of precipitation, with September receiving 125 mm (4.9 in) over about 10 days, whereas February has 119 mm (4.7 in) across 12 days. Additionally, February tends to be more humid, with a humidity level of 86% compared to September's 76%. For further details on February weather, visit Asheville weather in February.
September and March exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 5°C (41°F) to an average of 20°C (68°F), peaking at a maximum of 32°C (89°F). The month sees considerable rainfall, with 125 mm (4.9 in) accumulated over about 10 days and humidity levels around 76%. In contrast, March experiences a colder climate, starting with a minimum temperature of -9°C (16°F) and an average of 9°C (48°F), while still reaching a maximum of 30°C (87°F). Despite slightly lesser precipitation at 101 mm (4.0 in) over 13 days, March's humidity is higher at 86%. For more detailed insights, check out Asheville weather in March.
September and April exhibit notable differences in temperature and humidity. In September, temperatures range from a cool 5°C (41°F) to a warm 32°C (89°F), averaging at 20°C (68°F), while April sees much cooler conditions, with temperatures spanning from a chilly -4°C (25°F) to a mild 28°C (82°F), averaging at 13°C (56°F). Both months experience similar levels of precipitation, with September receiving 125 mm (4.9 in) and April slightly less at 119 mm (4.7 in), each spread over about 10 days. Additionally, September's humidity sits at 76%, while April is slightly more humid at 82%. For more detailed insights into April weather specifically, you can visit Asheville weather in April.
When comparing the weather in September and May, both months offer mild temperatures, but with some distinct differences. September boasts a wide temperature range, with a minimum of 5°C (41°F) and an average of 20°C (68°F), reaching up to a maximum of 32°C (89°F). Precipitation is slightly higher in September, with 125 mm (4.9 in) over 10 days, while the humidity stands at 76%. In contrast, May features cooler temperatures, with a minimum of 0°C (32°F) and an average of 18°C (64°F), peaking at 30°C (87°F). The rainfall in May totals 117 mm (4.6 in) spread over 12 days, accompanied by a higher humidity level of 85%. For more detailed information, you can explore Asheville weather in May.
In comparing the weather between September and June, both months showcase mild temperatures, but there are notable differences. September tends to be slightly warmer, with average temperatures around 20°C (68°F) and maximums reaching 32°C (89°F), while June averages 21°C (70°F) and peaks at 30°C (86°F). In terms of precipitation, September is wetter, receiving 125 mm (4.9 in) over about 10 days, compared to June's 89 mm (3.5 in) over 14 days. Humidity levels are also higher in June at 85%, compared to September's 76%. For more specific details on June weather conditions, you can refer to Asheville weather in June.
In comparing the weather of September and July, we see notable differences in temperature and precipitation patterns. September experiences a broader temperature range, with minimums dipping to 5°C (41°F) and maximums reaching 32°C (89°F), while July remains warmer, with minimums around 12°C (54°F) and a similar maximum of 31°C (88°F). Precipitation is more frequent in July, occurring over 18 days with a total of 93 mm (3.7 in), compared to September's 10 days of rainfall totaling 125 mm (4.9 in). Additionally, humidity levels are slightly higher in July at 83%, compared to September's 76%. For more details on the specific weather in July, you can visit Asheville weather in July.
In comparing the weather patterns of September and August, September experiences slightly cooler temperatures, with a minimum of 5°C (41°F) compared to August's minimum of 12°C (54°F). The average temperature in September is 20°C (68°F), while August averages at 22°C (72°F). Both months see similar maximum temperatures, with September hitting 32°C (89°F) and August reaching 31°C (88°F). Precipitation levels are very close, with 125 mm (4.9 in) of rain in September over 10 days compared to August's 126 mm (5.0 in) over 15 days. Humidity remains consistent at 76% for both months. For a more detailed look at August, you can visit Asheville weather in August.
September and October present a noticeable shift in weather patterns. In September, temperatures usually range from a minimum of 5°C (41°F) to a maximum of 32°C (89°F), with an average of 20°C (68°F), accompanied by relatively high humidity levels at 76%. The month sees around 125 mm (4.9 in) of precipitation over 10 days. By contrast, October brings cooler temperatures with a minimum dipping to -3°C (27°F) and an average of 15°C (59°F). Although the maximum temperature remains similar at 31°C (89°F), the precipitation level slightly increases to 139 mm (5.5 in) spread across 11 days, and the humidity rises to 80%. For more details on October’s weather, check Asheville weather in October.
September and November present stark contrasts in weather patterns. In September, temperatures range from a mild 20°C (68°F) on average, peaking at a warm 32°C (89°F), with precipitation reaching 125 mm (4.9 in) over 10 days. The humidity is relatively comfortable at 76%, creating a pleasant late summer atmosphere. In contrast, November sees a significant drop in temperatures, with an average of just 7°C (46°F) and a maximum of 24°C (75°F), while experiencing less rainfall at 73 mm (2.9 in) over 7 days. The humidity also increases to 88%, giving November a much cooler and damper feel. For more detailed information, check out Asheville weather in November.
September and December present strikingly different weather patterns. In September, temperatures range from a mild 5°C (41°F) to a warm 32°C (89°F), with an average of 20°C (68°F). The month experiences about 125 mm (4.9 in) of precipitation over 10 days, accompanied by a humidity level of 76%. In contrast, December brings much colder conditions, with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 23°C (74°F) and an average of 5°C (41°F). Precipitation slightly decreases to 109 mm (4.3 in) over 9 days, yet the humidity rises to 88%. For more detailed information about December weather, check out Asheville weather in December.
As September arrives in Asheville, the weather transitions from the warm summer heat to a milder, more comfortable climate. Average temperatures hover around a pleasant 20°C (68°F), allowing for both warm days and cooler evenings, in stark contrast to the relentless heat of July and August. While precipitation increases—with about 10 days of rain throughout the month—this moisture is essential for the lush landscapes that define the region. Humidity levels, while still noticeable at 76%, feel more bearable compared to the peak summer months, creating an ideal environment for outdoor exploration and scenic drives. This delightful blend of warmth and occasional showers makes September one of the best months to experience the vibrant natural beauty of Asheville. For a deeper look at how Asheville's weather changes throughout the year, check out Asheville Climate.