Atlanta Weather in September
28°C high · 17.4°C low · 96 mm rain · 7.4h sun
Sep is a warm month in Atlanta — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 28°C |
| Average low | 17.4°C |
| Rainfall | 96 mm |
| Sunshine | 7.4 hours/day |
| Daylight | 12.2 hours |
What to pack in September
Pack comfortable clothes with a light layer for evenings, plus a raincoat and umbrella for Atlanta in September.
Atlanta weather by month
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Frequently asked questions
What is the weather in Atlanta in September?
Highs of 28°C and lows of 17.4°C, with about 96 mm of rain and 7.4 hours of sunshine per day.
Is September a good time to visit Atlanta?
Sep is a warm month in Atlanta — not peak season, but a good time to avoid crowds.
What to do in Atlanta · Best time to visit Atlanta
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.