Cobb County (Marietta)
September
Weather in Cobb County, Georgia for September 2027
Your guide to Cobb County weather in September - trends and predictions
Cobb County experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 315.8 mm.
Is September a good time to visit Cobb County? check out the best time to travel to Cobb County page.
✨ Is September a good time to visit Cobb County? – Ask the AI Weatherman
Rain 🌧️
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21
Dry days
9
Rainy days
0
Snow days
30°/20°
Temperatures
12 km/h
Avg max wind
59 %
Avg humidity
Cobb County Weather September
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Temperatures trend during September in Cobb County
See the weather trend as well as the moving average line
September weather in Cobb County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Cloudy | 31° /20° | 0 mm | 9 | |
| Sept. 2 |  Partly cloudy | 32° /21° | 0 mm | 9.5 | |
| Sept. 3 |  Overcast | 33° /21° | 0 mm | 9.5 | |
| Sept. 4 |  Patchy rain possible | 35° /22° | 1.5 mm | 9.4 | |
| Sept. 5 |  Light rain | 35° /23° | 4 mm | 9.3 | |
| Sept. 6 |  Thundery outbreaks possible | 34° /23° | 0 mm | 8 | |
| Sept. 7 | Overcast | 28° /21° | 0 mm | 7 | |
| Sept. 8 | Overcast | 28° /20° | 0 mm | 6 | |
| Sept. 9 | Cloudy | 29° /19° | 0 mm | 8 | |
| Sept. 10 |  Sunny | 31° /19° | 0.2 mm | 8.9 | |
| Sept. 11 | Light rain | 31° /19° | 5.7 mm | 8.8 | |
| Sept. 12 |  Heavy rain | 29° /21° | 249.8 mm | 6 | |
| Sept. 13 | Overcast | 30° /22° | 0.2 mm | 8 | |
| Sept. 14 | Overcast | 33° /22° | 0 mm | 8.5 | |
| Sept. 15 | Overcast | 30° /22° | 0.8 mm | 7 | |
| Sept. 16 | Partly cloudy | 31° /22° | 0.4 mm | 8.4 | |
| Sept. 17 | Patchy rain possible | 31° /21° | 1.5 mm | 8.3 | |
| Sept. 18 | Partly cloudy | 33° /21° | 0.6 mm | 8 | |
| Sept. 19 | Thundery outbreaks possible | 32° /23° | 2.9 mm | 7 | |
| Sept. 20 | Thundery outbreaks possible | 31° /22° | 2.2 mm | 8 | |
| Sept. 21 | Overcast | 31° /22° | 0.6 mm | 7 | |
| Sept. 22 |  Moderate rain | 31° /22° | 10.1 mm | 4 | |
| Sept. 23 | Light rain | 28° /20° | 9.1 mm | 5 | |
| Sept. 24 | Cloudy | 26° /19° | 0.3 mm | 5 | |
| Sept. 25 | Light rain | 26° /19° | 4.8 mm | 4 | |
| Sept. 26 | Patchy rain possible | 27° /18° | 2.3 mm | 5 | |
| Sept. 27 | Moderate rain | 26° /17° | 18.6 mm | 6 | |
| Sept. 28 |  Mist | 28° /17° | 0 mm | 7 | |
| Sept. 29 | Partly cloudy | 29° /18° | 0 mm | 7 | |
| Sept. 30 | Overcast | 28° /18° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Cobb County in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Cobb County forecast closer to your planned date for the most up-to-date weather information.
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Cobb County in September - FAQ
What are the expected maximum and minimum temperatures in Cobb County during September?
Expect warm days with temperatures around 30°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Cobb County during September?
Significant rainfall exceeding 315.8 mm is expected in Cobb County during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Cobb County during September?
The average wind speed in Cobb County during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Cobb County
Explore the daily rainfall trends and prepare for Cobb Countys September weather 💧
Typically, Cobb County has 9 rainy days in September with a total of 315.8 mm of rainfall.
UV exposure in Cobb County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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