Marietta Weather in September

September in Marietta typically sees daytime highs of 28°C (82°F) and nighttime lows of 18°C (64°F). With the least rainfall of the year, it's a reliably dry month.

Rainfall in Marietta in September

Clear skies and little rain are the norm this month. A great time to spend time outdoors. Looking at the last 30 years, the data shows about 8 days with rain, averaging 87 mm (3.4 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Marietta in September

Marietta in September has perfect weather. Days reach 28°C (82°F) and nights cool to 18°C (64°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 18°C (64°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 Marietta in September

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

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• 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 Marietta's climate page.

Marietta Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 27%  

Precipitation 87 mm (3.4 in)  

Rainy days 8 days  

Humidity 74% *  

Sunshine 227 hours *  

Percentage Sunshine 61% *  

* Data from: Atlanta, the United States of America (27 KM, 16 Miles).

What to Wear in Marietta in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Marietta 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 Marietta's climate page.

More climate data for Marietta

Temperature Rainfall Sunshine Humidity

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