World Resorts USA Atlanta Weather

Atlanta weather in September

Weather in Atlanta: September

Average day temperature: 82.1°F
Average night temperature: 69.8°F
Number of sunny days: 15 days
Day length: 11.9 - 12.9 hours
Number of rainy days: 3 days
Precipitation totals: 1.9 in.

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 65°F. Daily and nightly averages during September were 83.6°F and 70.4°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 Atlanta in September is 1.8 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 5.9 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: 7.7.

Best time for vacation in Atlanta

Sunniest months:
October 18 days
May 15 days
September 15 days
Warmest months:
July 89.3 °F
August 87.7 °F
June 86.2 °F
Coldest months:
January 47.6 °F
December 52.8 °F
February 53.7 °F
Rainiest months:
August 6 days
June 5 days
July 5 days
Windiest months:
March 8.4 mph
February 8.2 mph
January 8.2 mph

Atlanta on a weather map

Atlanta
+41°F
SE 4 mph
Feels like: +39°F
Precip.: 100%
Places in USA:
Name
°F
+30°F
+77°F
+77°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+9°F
24 Hours Forecast
Atlanta
Local time: 23:13
December 05, friday
0000
41°F
SE
4 mph
0300
41°F
SW
2 mph
0600
41°F
W
2 mph
0900
43°F
W
2 mph
1200
45°F
NW
2 mph
1500
46°F
NE
1 mph
1800
46°F
S
2 mph
2100
46°F
NE
1 mph
Units of measurement: °C / °F