Weather in Knoxville in September
Knoxville, United States averages a high of 26.9°C (80.4°F) and low of 16.8°C (62.2°F) in September, with 8 rain days and 9.8 hours of daily sunshine. Travel score: 86.1/100 (Excellent). The best time to visit Knoxville is September.
High
27°C80°F
Low
17°C62°F
🌧️
8
rain days
☀️
9.8
hrs/day sunshine
💧
72%
humidity
86— Excellent
September in Knoxville is warm and mostly dry — excellent conditions for exploring.
What are the average temperatures in Knoxville?
How much does it rain in Knoxville in September?
Knoxville receives an average of 90.5mm of rainfall across 8 rainy days in September. The annual total is 1176.8mm.
What should I pack for Knoxville in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 27°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31