San Antonio weather in January
January in San Antonio averages 63°F by day and 41°F at night, with 2.0 inches of precipitation. It is the 12th-warmest and 11th-wettest month of the year here.
- Average high
- 63°F-1° vs December
- Average low
- 41°F5 nights below freezing
- Precipitation
- 2.0 in4 days with 0.1 in. or more
- Snow
- 0.0 in0 days at 90°F+
Is January a good time to visit San Antonio?
January is pleasant by day, but nights get chilly. The most comfortable months overall are February to April and October to December.
What to do in San Antonio in January
Mix it up: Six Flags Fiesta Texas, San Antonio Museum of Art, McNay Art Museum, Majestic Theatre. All things to do in San Antonio.
On January 15 the sun rises at 7:29 am and sets at 5:57 pm, giving 10h 28m of daylight. Daylight all year.
What to pack for San Antonio in January
- T-shirts and a light jacket or sweater
- A warmer layer for evenings, which drop to around 41°F
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
January nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| San Antonio | 63°F | 41°F | 2.0 in | |
| New Braunfels, TX | 28 mi | 64°F | 40°F | 2.1 in |
| San Marcos, TX | 53 mi | 63°F | 38°F | 2.8 in |
| Austin, TX | 74 mi | 63°F | 42°F | 2.6 in |
| Cedar Park, TX | 83 mi | 63°F | 42°F | 2.6 in |
| Leander, TX | 87 mi | 63°F | 42°F | 2.6 in |
| Georgetown, TX | 95 mi | 60°F | 36°F | 2.5 in |
Frequently asked questions
What is the weather like in San Antonio in January?
In January, San Antonio averages a high of 63°F and a low of 41°F, with 2.0 inches of precipitation (NOAA 1991-2020 normals).
Is January a good time to visit San Antonio?
January is mild by day but chilly at night (41°F lows).
Does it snow in San Antonio in January?
Rarely. The January snowfall normal is under half an inch.
Before and after: San Antonio in December and San Antonio in February. All twelve months: San Antonio weather by month.
NOAA NCEI 1991-2020 climate normals, station San Antonio Intl. Airport, TX, 7.5 miles from the city center.