Is San Antonio hot in January?
Days are typically cool at 17.8°C, while nights average 4.5°C.
United States · 1991–2020 normal
San Antonio in
January.
Typical January weather in San Antonio: 17.8°C by day, 4.5°C at night, 52 mm of rain over 5.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high17.8°C
Typical low4.5°C
Rain52 mm
Wet days5.2
In the year-round weather comparison, January scores 56 out of 100 (April leads the year at 86). Daylight is calculated as 10 h 27 from latitude 29.42°.
January at a glance
What is San Antonio like in January?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 52 mm across about 5 wet days.
How much daylight is there?
There are about 10 h 27 between sunrise and sunset at mid-month, calculated from the place latitude.
Is January a good time to visit?
January ranks 8 of 12 in our weather comparison; April ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4726206
- NOAA station
- USC00417947 · SAN ANTONIO INCARNATE WORD
- Station distance
- 5.5 km from the place centre
- Coverage
- Good coverage · 20 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for San Antonio is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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