Cosby Weather in September

Thinking of visiting Cosby in September? Expect high temperatures reaching 27°C (81°F) during the day, dropping to 15°C (59°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Cosby in September

Rain is expected on roughly 12 days, totalling around 107 mm (4.2 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Cosby in September

In September, Cosby sees high temperatures, with highs of 27°C (81°F). Nights drop to around 15°C (59°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 15°C (59°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 Cosby in September

There are approximately 233 hours of sunshine this month, resulting in mostly clear days.

Should you favor a climate that's both dry and comfortably warm, October typically offers 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 Cosby's climate page.

Cosby Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 40%  

Precipitation 107 mm (4.2 in)  

Rainy days 12 days  

Humidity 76% *  

Sunshine 233 hours *  

Percentage Sunshine 62% *  

* Data from: Knoxville, the United States of America (62 KM, 39 Miles).

What to Wear in Cosby in September

Warm temperatures in September 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 Cosby in September

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

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 Cosby's climate page.

More climate data for Cosby

Temperature Rainfall Sunshine Humidity

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