What is the weather like in Austin vs San Antonio in December?

In December, Austin averages 20°C high / 8°C low with about 74 mm of rain; San Antonio averages 21°C high / 7°C low with about 48 mm.

Austin vs San Antonio in December

San Antonio is the better pick in December — 80 vs 76 on SeasonMap's comfort score. San Antonio is nice, a little rain, clean air, while Austin is nice, a little rain, clean air.

Austin vs San Antonio — December climate, side by side

	🇺🇸 Austin	🇺🇸 San Antonio
Comfort score	76/100 (B)	80/100 (A)
Feels-like high	18°C	20°C
Avg high / low	20° / 8°	21° / 7°
Rainfall	74 mm	48 mm
Rainy days	6	5
Humidity	70%	69%
Air quality (AQI)	31	31

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

Month by month

Austin vs San Antonio in December — FAQ

Is December better in Austin or San Antonio?: San Antonio is the better pick in December — 80 vs 76 on SeasonMap's comfort score. San Antonio is nice, a little rain, clean air, while Austin is nice, a little rain, clean air.
What is the weather like in Austin vs San Antonio in December?: In December, Austin averages 20°C high / 8°C low with about 74 mm of rain; San Antonio averages 21°C high / 7°C low with about 48 mm.