Knoxville Weather in September
September in Knoxville brings high temperatures, with highs of 26°C (79°F) and nights dropping to 13°C (55°F). Rainfall is on the higher side this month, averaging around 96 mm (3.8 in), so keep a rain jacket handy.
Rainfall in Knoxville in September
Historically, the month has about 10 days of rain, averaging 96 mm (3.8 in) in total. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Knoxville in September
Weather in Knoxville is at its excellent in September. Highs reach 26°C (79°F), while nights settle around 13°C (55°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.Our weather planner can help you find worldwide destinations with pleasant weather during this period. September typically offers the best weather for Knoxville.
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 Knoxville's climate page.
Knoxville Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
26°C (79°F)
Chance of Rain
33%
Precipitation
96 mm (3.8 in)
Rainy days
10 days
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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tolerable
unpleasant
poor
What to Wear in Knoxville in September
Warm but pleasant conditions in Knoxville in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags.What To Do in Knoxville 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 Knoxville's climate page.
See the full Knoxville climate overview or explore weather in the United States of America.
