Knoxville Weather in August

August in Knoxville brings very high temperatures, with daytime highs of 31°C (88°F) and nights around 20°C (68°F). Quite a bit of rainfall is expected, around 84 mm (3.3 in), so pack an umbrella.

Rainfall in Knoxville in August

You can expect rain on roughly 11 days based on historical data, averaging 84 mm (3.3 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Knoxville in August

August in Knoxville brings very high temperatures, with highs of 31°C (88°F) and nights around 20°C (68°F). It's usually most comfortable outside during the morning and later in the day. With overnight lows of 20°C (68°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. Remember, these are typical temperatures, and certain days could be even hotter. Ensure you wear appropriate clothing to handle the warmth.

Sunshine in Knoxville in August

There are approximately 277 hours of sunshine this month, resulting in mostly clear days.

Should you favor a climate that's both dry and comfortably warm, May and October typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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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 August

Min Temperature 20°C (68°F)  

Max Temperature 31°C (88°F)  

Chance of Rain 38%  

Precipitation 84 mm (3.3 in)  

Rainy days 11 days  

Humidity 76%  

Sunshine 277 hours  

Percentage Sunshine 67%  

What to Wear in Knoxville in August

Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Knoxville in August

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

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.

More climate data for Knoxville

Temperature Rainfall Sunshine Humidity

See the full Knoxville climate overview or explore weather in the United States of America.