What is the weather like in Atlanta vs San Antonio in September?

In September, Atlanta averages 29°C high / 20°C low with about 92 mm of rain; San Antonio averages 35°C high / 22°C low with about 85 mm.

Atlanta vs San Antonio in September

Atlanta is the better pick in September — 80 vs 64 on SeasonMap's comfort score. Atlanta is hot, rainy, while San Antonio is sweltering, rainy, clean air.

Atlanta vs San Antonio — September climate, side by side

	🇺🇸 Atlanta	🇺🇸 San Antonio
Comfort score	80/100 (A)	64/100 (C)
Feels-like high	31°C	37°C
Avg high / low	29° / 20°	35° / 22°
Rainfall	92 mm	85 mm
Rainy days	5	5
Humidity	70%	65%
Air quality (AQI)	55	42

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Atlanta vs San Antonio in September — FAQ

Is September better in Atlanta or San Antonio?: Atlanta is the better pick in September — 80 vs 64 on SeasonMap's comfort score. Atlanta is hot, rainy, while San Antonio is sweltering, rainy, clean air.
What is the weather like in Atlanta vs San Antonio in September?: In September, Atlanta averages 29°C high / 20°C low with about 92 mm of rain; San Antonio averages 35°C high / 22°C low with about 85 mm.