Harriman Weather in September

September in Harriman typically sees daytime highs of 28°C (82°F) and nighttime lows of 15°C (59°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Harriman in September

Past climate data indicates that roughly 10 days will see rain, totalling around 108 mm (4.3 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Harriman in September

In September, Harriman gets high temperatures, with highs of 28°C (82°F). Nights cool to around 15°C (59°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 15°C (59°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Harriman in September

Enjoy a sunny month with about 233 hours of sunshine, the clear skies make Harriman even more beautiful.

If your ideal day consists of dry skies and pleasant temperatures, October typically offers the best circumstances for Harriman.

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• January
• February
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• May
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• October
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• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Harriman's climate page.

Harriman Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 33%  

Precipitation 108 mm (4.3 in)  

Rainy days 10 days  

Humidity 76% *  

Sunshine 233 hours *  

Percentage Sunshine 62% *  

* Data from: Knoxville, the United States of America (56 KM, 35 Miles).

What to Wear in Harriman 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Harriman 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 Harriman's climate page.

More climate data for Harriman

Temperature Rainfall Sunshine Humidity

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