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

In September, San Antonio averages 35°C high / 22°C low with about 85 mm of rain; San Francisco averages 22°C high / 14°C low with about 3 mm.

San Antonio vs San Francisco in September

San Francisco is the better pick in September — 96 vs 64 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while San Antonio is sweltering, rainy, clean air.

San Antonio vs San Francisco — September climate, side by side

	San Antonio	San Francisco
Comfort score	64/100 (C)	96/100 (S)
Feels-like high	37°C	21°C
Avg high / low	35° / 22°	22° / 14°
Rainfall	85 mm	3 mm
Rainy days	5	1
Humidity	65%	75%
Air quality (AQI)	42	35

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

San Antonio vs San Francisco in September — FAQ

Is September better in San Antonio or San Francisco?: San Francisco is the better pick in September — 96 vs 64 on SeasonMap's comfort score. San Francisco is nice, dry, clean air, while San Antonio is sweltering, rainy, clean air.
What is the weather like in San Antonio vs San Francisco in September?: In September, San Antonio averages 35°C high / 22°C low with about 85 mm of rain; San Francisco averages 22°C high / 14°C low with about 3 mm.