Last updated: February 24, 2025
September in Gatlinburg, United States showcases a delightful mix of weather, making it a captivating time to visit. With maximum temperatures reaching a comforting 33°C (91°F) and an average of 21°C (70°F), visitors can enjoy warm, pleasant days. However, the evenings can be cool, dropping to a minimum of 6°C (43°F). Expect some rainfall, as 106 mm (4.2 in) of precipitation is spread across 12 days, contributing to the lush scenery of the area. With a humidity level of 76%, the air is rich and invigorating, perfect for exploring the natural beauty of the Smoky Mountains.
As September rolls into Gatlinburg, the temperatures begin to shift noticeably, offering a gentle transition from the summer's sweltering heat. With average temperatures hovering around 21°C (70°F), this month strikes a comfortable balance, inviting outdoor enthusiasts to explore the stunning fall foliage. Early in the month, visitors can expect highs reaching up to 33°C (91°F), making it one of the last opportunities for warm-weather activities. However, as days wane, lows drop to around 6°C (43°F), hinting at the impending cooler months. This dynamic range not only provides a respite from the peak summer heat but also sets the stage for cozy evenings by the fire, making September a perfectly picturesque time to experience Gatlinburg's natural beauty.
In September, Gatlinburg experiences a moderate precipitation level of 106 mm (4.2 in), marking a slight decrease from the wetter summer months. This rainfall typically occurs over 12 days, highlighting a trend toward drier conditions as the region transitions into autumn. Compared to previous months like August, which recorded 129 mm (5.1 in) of rain, September hints at an easing in the summer's rain-soaked grip. This trend continues into October, which averages 132 mm (5.2 in), suggesting that while the wettest days may be behind, the area still benefits from regular rainfall as it welcomes the changing season.
In September, Gatlinburg enjoys a pleasant shift in humidity, dipping to 76%—a welcome relief after the lingering summer heat. This marks a notable decrease from the humidity levels that dominate the earlier months, with figures consistently hovering around 86% from January to March. As summer progresses, humidity remains relatively stable until August, when it also hits 76%, indicating a seasonal transition. The drier September air paves the way for the crisp fall days that follow, suggesting a gradual return to more comfortable and refreshing conditions throughout the town as it gears up for autumn.
As summer transitions into autumn, September in Gatlinburg continues to showcase a very high UV Index of 9, suggesting that outdoor enthusiasts should remain vigilant about sun protection. Following the peak months of June and July with an extreme UV Index of 11, the slight reduction to 9 does not mean less care is needed; a burn time of just 15 minutes highlights the persistent intensity of the sun. This trend is evident as the UV Index gradually decreases from its summer highs, yet still requires awareness. With each month bringing different exposure levels, it's crucial to stay informed and protected while enjoying the beautiful fall scenery. For more detailed information, visit Gatlinburg UV Index.
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As summer gracefully fades, September in Gatlinburg continues to bask in a warm glow, offering 285 hours of sunshine—a delightful embrace from the sun that comfortably transitions into fall. This month stands out as a beautiful balance, significantly lower than the peak 327 hours in July and yet still abundant compared to the winter months, where sunshine dips to around 149 hours in January. The gradual decline from the sun-drenched days of summer is evident, but September retains a vibrant warmth, inviting outdoor enthusiasts to enjoy the stunning fall foliage and trails. With each passing month, Gatlinburg showcases a remarkable shift, revealing nature's beauty at every turn, making September a perfect time for exploration and connection with the great outdoors.
In Gatlinburg, the likelihood of sunny weather in September stands at a promising 52%, making it one of the more favorable months for sunshine. This trend marks a notable increase compared to the summer months, where the chances hovered around the low 40s. As the season transitions from the heat of summer to the crispness of autumn, September offers a sweet spot for outdoor enthusiasts and nature lovers alike. The sunny disposition of this month aligns closely with April and just outshines October, indicating that it's a prime time to enjoy the beautiful landscapes of the Smoky Mountains under clear, blue skies.
As summer winds down in Gatlinburg, September brings a gentle transition with approximately 12 hours of daylight, marking a shift from the vibrant, sun-soaked days of July and August. This gradual decrease in daylight signifies the onset of autumn, as the days slowly shorten from the peak summer length of 14 hours. With each passing month, the daylight duration continues to ebb, ultimately leading into October’s 11 hours and November’s 10 hours. The evolving daylight not only sets the perfect backdrop for nature’s spectacular fall colors but also invites locals and visitors alike to savor the changing season.
As summer fades into autumn, September in Gatlinburg brings a gentle shift in the breeze, with an average wind speed of 1.5 m/s (3 mph). This slight increase from August's calm of 1.3 m/s (3 mph) hints at the onset of seasonal change. Unlike the brisk winds that characterize the winter months, September's wind remains soft and soothing, reflecting the serene transition into fall. Looking ahead, October promises a slight uptick to 1.8 m/s (4 mph), setting the stage for more invigorating gusts as nature gears up for the cooler temperatures ahead. Overall, September’s winds continue the trend of tranquility that marks the late summer and early autumn months in this picturesque region.
The weather in Gatlinburg 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 Gatlinburg and find detailed weather information for every month.
In September, the weather in Gatlinburg is characterized by a warm average temperature of 21°C (70°F), with maximums reaching up to 33°C (91°F) and a lower minimum of 6°C (43°F). The month sees significant precipitation, totaling 106 mm (4.2 in) over 12 days, and humidity levels hover around 76%. In contrast, January presents a starkly different climate, with much colder temperatures; the average sits at a chilly 4°C (39°F), with minimums plummeting to -17°C (1°F) and maximums only reaching 23°C (73°F). Precipitation levels are slightly lower at 97 mm (3.8 in), stretching across 13 days, and humidity rises to 86%. This comparison underscores the dramatic seasonal shifts in Gatlinburg's weather. For a more detailed look at the winter conditions, check out Gatlinburg weather in January.
When comparing the weather in September and February, there's a stark contrast in temperatures and conditions. September typically enjoys milder warmth with average temperatures around 21°C (70°F), peaking at 33°C (91°F). In contrast, February experiences much colder temperatures, with an average of 7°C (45°F) and lows that can drop to -9°C (16°F). Precipitation is also more pronounced in February, with average rainfall reaching 153 mm (6.0 in) over 14 days, compared to September's 106 mm (4.2 in) over 12 days. Additionally, February tends to have higher humidity levels at 86%, compared to September’s 76%. For more detailed insights, you can check Gatlinburg weather in February.
September and March present quite contrasting weather conditions. In September, temperatures range from a mild 6°C (43°F) at night to a warm maximum of 33°C (91°F) during the day, with an average of 21°C (70°F). However, the month also sees significant rainfall, totaling 106 mm (4.2 in) over about 12 days, accompanied by a humidity level of 76%. In contrast, March features much colder temperatures, with lows dropping to -17°C (1°F) and highs reaching 28°C (82°F), averaging around 10°C (50°F). This month experiences more precipitation at 145 mm (5.7 in), over 15 days, with even higher humidity at 86%. For those interested in a deeper dive into March weather specifics, you can visit Gatlinburg weather in March.
When comparing the weather in September and April, September generally offers warmer temperatures, with an average of 21°C (70°F) and highs reaching up to 33°C (91°F), while April features a cooler average of 13°C (57°F) and maximums of 30°C (85°F). Precipitation is noticeably higher in April, totaling 138 mm (5.4 in) compared to September's 106 mm (4.2 in), although both months have roughly the same number of rainy days at 12. Additionally, humidity levels are slightly higher in April at 82%, compared to 76% in September. This seasonal variation means that those interested in exploring the area can expect quite different weather patterns during these months. For more specific details about conditions in April, you can check out Gatlinburg weather in April.
When comparing the weather in September to that in May, we see marked differences in temperature and precipitation. September typically enjoys warmer conditions, with average highs reaching up to 33°C (91°F) and lows around 6°C (43°F). In contrast, May features a cooler climate, with temperatures ranging from a minimum of 0°C (32°F) to an average high of 30°C (87°F). Rainfall is more prevalent in May, with 131 mm (5.2 in) over 14 days, compared to September's 106 mm (4.2 in) over 12 days. Furthermore, humidity is slightly higher in May at 85%, compared to September's 76%. For a detailed look at May weather, check out Gatlinburg weather in May.
In comparing the weather of September and June, both months present pleasant temperatures, but with slight variations. September typically experiences a minimum temperature of 6°C (43°F) and can reach highs of 33°C (91°F), averaging around 21°C (70°F), while June starts a bit warmer with minimums at 8°C (46°F) and a maximum of 31°C (88°F), averaging at 22°C (71°F). Precipitation is quite similar, with September having 106 mm (4.2 in) over 12 days and June slightly higher at 111 mm (4.4 in) over 15 days. Additionally, humidity levels in June are higher at 85%, compared to 76% in September. For a more detailed look at June weather, check out Gatlinburg weather in June.
Comparing the weather in September and July reveals some notable differences. September experiences a broader temperature range, with minimums dipping to 6°C (43°F) and maximums reaching up to 33°C (91°F), averaging 21°C (70°F). In contrast, July's temperatures are more consistent, with a minimum of 13°C (56°F) and maximum around 32°C (90°F), resulting in a slightly higher average of 24°C (75°F). Additionally, September sees approximately 106 mm (4.2 inches) of precipitation over 12 days and has a humidity level of 76%, while July receives a bit more rainfall at 118 mm (4.6 inches) over 16 days, accompanied by higher humidity at 83%. For a detailed look at July's weather, visit Gatlinburg weather in July.
In comparing the weather between September and August, we see a notable shift in temperature patterns. September experiences cooler nights with a minimum temperature of 6°C (43°F) compared to August's warmer minimum of 12°C (55°F). The average temperatures are slightly lower in September at 21°C (70°F) versus 23°C (74°F) in August, while the maximum temperatures are similarly high, with September reaching 33°C (91°F) and August peaking at 32°C (89°F).
Precipitation levels also differ, with September receiving 106 mm (4.2 in) over 12 days, while August has slightly higher rainfall at 129 mm (5.1 in) across 15 days. Interestingly, humidity remains constant at 76% for both months. For a more detailed look at August weather, you can visit Gatlinburg weather in August.
In September, temperatures are generally warmer, with an average of 21°C (70°F) and maximums reaching up to 33°C (91°F), while minimums remain relatively mild at 6°C (43°F). The month experiences about 106 mm (4.2 in) of precipitation over 12 days, coupled with a humidity level of 76%. In contrast, October brings a noticeable drop in temperatures, with an average of 16°C (60°F) and minimums occasionally dipping to -3°C (28°F), while maximums can still reach 33°C (91°F). Precipitation increases slightly to 132 mm (5.2 in) over just 11 days, and humidity rises to 80%. For more detailed information on October weather, visit Gatlinburg weather in October.
September and November present contrasting weather patterns. In September, temperatures range from a mild 6°C (43°F) at night to a warm 33°C (91°F) during the day, with an average of 21°C (70°F). This month sees around 106 mm (4.2 in) of precipitation over 12 days and a humidity level of 76%. In stark contrast, November experiences colder temperatures, with a minimum of -11°C (13°F) and an average temperature of just 8°C (47°F), peaking at 25°C (77°F). While November has lower total precipitation at 82 mm (3.2 in) across 10 days, the humidity rises to 88%. For more specific details about conditions during this month, check out Gatlinburg weather in November.
September and December present stark contrasts in weather conditions. September typically enjoys milder temperatures, with averages around 21°C (70°F) and maximums reaching 33°C (91°F), making it a pleasant month for outdoor activities. However, it is also characterized by relatively high humidity at 76% and considerable rainfall, with up to 106 mm (4.2 in) of precipitation over about 12 days. In comparison, December brings a chillier environment, featuring much lower minimum temperatures of -16°C (4°F) and an average of just 6°C (43°F). This month experiences slightly higher precipitation at 136 mm (5.4 in) spread across 13 days, and the humidity increases to 88%, contributing to a more wintry atmosphere. For more detailed insights into the December weather, visit Gatlinburg weather in December.
September in Gatlinburg signals a transition from the summer heat to a milder and more enjoyable climate. With average temperatures settling around a comfortable 21°C (70°F), this month offers a welcome break from the sweltering highs experienced in the peak summer months. Humidity remains notably high, providing a lush environment, but with 106 mm of precipitation over 12 days, it's wise to keep an umbrella handy. Travelers can expect a more temperate atmosphere, perfect for outdoor adventures amidst the backdrop of early autumn foliage. For a deeper insight into the seasonal shifts you can expect, explore Gatlinburg Climate.