Weather in Alpharetta in September
Alpharetta temperatures in September range from 18 to 28 and there is an average of 10 days of rain.
Avg Temp
18° - 28°
Avg Rainy Days
10
![](https://weather-finder.com/img/rain.jpg)
Avg Dry Days
20
![](https://weather-finder.com/img/sun.png)
Avg Snow Days
0
Weather Facts - Alpharetta in September
* The warmest temperature recorded in in September is 34°C
* The coldest temperature recorded in Alpharetta in September is 7°C
* The average rainfall in Alpharetta in September is 122 mm