Weather in Marietta: September
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Average day temperature: | 80.9°F |
| Average night temperature: | 68.7°F | |
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Number of sunny days: | 15 days |
| Day length: | 11.9 - 12.9 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.1 in. | |
| more information | ||
14 days
forecast
forecast
| Marietta |
weather in
October
October
| Marietta |
Air temperature in September, °F
Show year:
2025
2024
2023
The highest day temperature during September of 2025 was 89°F. At the same time the lowest night temperature was 66°F. Daily and nightly averages during September were 83.4°F and 70.2°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Marietta in September is 1.1 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 5.7 mph It makes September one of the least windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 8.1.
Best time for vacation in Marietta
Marietta on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Marietta
Local time: 06:20
January 08, thursday
0900
54°F
W
5 mph
5 mph
1200
57°F
W
7 mph
7 mph
1500
61°F
NW
8 mph
8 mph
1800
59°F
NW
7 mph
7 mph
2100
59°F
NW
7 mph
7 mph
January 09, friday
0000
59°F
NW
7 mph
7 mph
0300
59°F
NW
6 mph
6 mph
0600
61°F
NW
5 mph
5 mph
