Average Weather during September in Great Smoky Mountains National Park, United States of America

The average minimum temperature (usually the minimum temperature is noted during the night) in Great Smoky Mountains National Park in September is 12.8°C (55.04°F). The amount of rain in September is high with an average of 111mm (4.4in). The average maximum daytime temperature lies around 26.7°C (80.06°F).


So what to wear in September? Visitors traveling to Great Smoky Mountains National Park should plan on bringing a totally waterproof rain jacket since it will often be raining. Also bring your shorts or a skirt because it can be very warm or even hot.

No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.

For other monthly average weather and what to do in September look at the numbers below.

Monthly Averages

Show in Fahrenheit

Min Temperature 12 °C
Max Temperature 26 °C
Chance of Rain 33%
Precipitation 111mm
Rainy Days 10

Where to stay in Great Smoky Mountains National Park

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in .

Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

More Climate Information For Great Smoky Mountains National Park

Weather and Climate offers all the information you need to know about the climate in Great Smoky Mountains National Park.

We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in United States of America and climate and forecast data for all other countries in the world.