San Antonio weather by month › December
San Antonio in December: weather and what to expect
It’s fine, but not the best. March is more pleasant.
December weather in San Antonio
Daytime high65°F 19°C
Night low43°F 6°C
Rain2.0 in 50 mm
AirDry
SunModerate sun
In December, San Antonio averages highs of 65°F (19°C) and lows of 43°F (6°C), with 2.0 in (50 mm) of rain. The air feels dry and the sun is moderate. 1991–2020 averages, not a forecast.
Pack: light layers, a sweater for evenings.
Places with the same weather in December
Match out of 100 for December, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec