Gatlinburg Weather in September
September in Gatlinburg brings high temperatures, with daytime highs of 26°C (79°F) and nights around 13°C (55°F). Quite a bit of rainfall is expected, around 110 mm (4.3 in), so pack an umbrella.
Rainfall in Gatlinburg in September
Rain is expected on roughly 12 days, totalling around 110 mm (4.3 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Gatlinburg in September
Gatlinburg in September gets highs of 26°C (79°F) during the day and drops to 13°C (55°F) at night. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Gatlinburg in September
The month enjoys around 233 hours of sunshine, creating mostly sunny days with good weather conditions.If your ideal day consists of dry skies and pleasant temperatures, October typically offers the best circumstances for Gatlinburg.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Gatlinburg's climate page.
Gatlinburg Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
26°C (79°F)
Chance of Rain
41%
Precipitation
110 mm (4.3 in)
Rainy days
12 days
Humidity
76% *
Sunshine
233 hours *
Percentage Sunshine
62% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Gatlinburg typically drop from around 29°C (84°F) at the start of September to approximately 25°C (77°F) by the end. Nights are pleasant, with lows typically ranging from 13°C (55°F) to 19°C (66°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Gatlinburg in September
Browse day-by-day weather records for Gatlinburg spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Gatlinburg historical weather extremes in September
Based on weather observations in Gatlinburg between 1976 and 2025, these are the recorded extremes during September.
- The hottest September day on record in Gatlinburg reached 35°C (95°F) (September 5, 1998).
- On September 23, 1995, Gatlinburg saw its coldest September day with temperatures maxing out at 12°C (54°F).
- The coldest night in September in Gatlinburg was on September 28, 1985, with a minimum of 3°C (37°F).
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
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What to Wear in Gatlinburg in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Gatlinburg in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Gatlinburg's climate page.
Temperature Rainfall Sunshine Humidity
See the full Gatlinburg climate overview or explore weather in the United States of America.
