Stone Mountain Weather in September

September in Stone Mountain brings high temperatures around 28°C (82°F) during the day, dropping to 18°C (64°F) at night, with quite a bit of rainfall expected, averaging around 100 mm (3.9 in) for the month.

Rainfall in Stone Mountain in September

Historically, the month has about 7 days of rain, averaging 100 mm (3.9 in) in total. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Stone Mountain in September

Stone Mountain in September gets highs of 28°C (82°F) during the day and drops to 18°C (64°F) at night. This kind of day-to-night contrast is typical for this time of year. At 18°C (64°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.

Sunshine in Stone Mountain in September

Enjoy a sunny month with about 227 hours of sunshine, the clear skies make Stone Mountain even more beautiful.

If your ideal day consists of dry skies and pleasant temperatures, April, May and October typically offer the best circumstances for Stone Mountain.

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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 Stone Mountain's climate page.

Stone Mountain Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 24%  

Precipitation 100 mm (3.9 in)  

Rainy days 7 days  

Humidity 74% *  

Sunshine 227 hours *  

Percentage Sunshine 61% *  

* Data from: Atlanta, the United States of America (21 KM, 13 Miles).

What to Wear in Stone Mountain 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 Stone Mountain 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

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 Stone Mountain's climate page.

More climate data for Stone Mountain

Temperature Rainfall Sunshine Humidity

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