Weather in Atlanta in September
September in Atlanta is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.
In United States, this is how Atlanta actually wears September, not how a country centroid would. Compared with July and January, September sits in the middle of Atlanta's year.
- Average temp
- 24°C
19–29°C
- Rainfall
- 97 mm
Showers likely
- Sunshine
- —
- Wind
- 12 km/h
What to expect
Daytime
Warm days in Atlanta in September. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.
You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.
Rain
Mixed skies in Atlanta in September. Dry days and wet days share the month. Outdoor plans need a backup, not a cancellation policy.
Pack a shell you will actually carry. The monthly table is the place for totals. This is the feel: usable, interrupted.
Evening
Evenings stay warm.
What to pack
Rain jacket
Where to stay in Atlanta
Dates are a starting point for September.
Travel guides for Atlanta
What to read before you book.
Average weather in Atlanta
TemperatureRainfall
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about Atlanta
Climate averages for Atlanta, 1991–2020.
The best time to visit Atlanta is between May and October, the most comfortable stretch of the year on these averages.
July is the hottest month, with an average around 27°C.
July is the wettest month, with about 121 mm of rain.
No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.
