San Antonio weather by month › January
San Antonio in January: weather and what to expect
It’s fine, but not the best. March is more pleasant.
January weather in San Antonio
Daytime high65°F 18°C
Night low42°F 6°C
Rain1.9 in 47 mm
AirDry
SunModerate sun
In January, San Antonio averages highs of 65°F (18°C) and lows of 42°F (6°C), with 1.9 in (47 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 January
Match out of 100 for January, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec