Marietta
Weather by month
Current

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 excellent 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.

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).

Marietta Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Marietta - and find the best time to visit.

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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

Marietta 3-Day Forecast

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.