San Antonio weather by month
Average highs run from 63°F in January to 95°F in July, and January nights average 41°F. It gets 32 inches of rain and melted snow a year, with almost no snow. Expect about 122 days a year at 90°F or hotter. The most comfortable months are February to April and October to December.
Best time to visit San Antonio
For comfortable weather, go in February to April and October to December. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 63°F | 41°F | 2.0 in | 0.0 in | 4 | 0 | 5 | mild days, chilly nights |
| February | 68°F | 45°F | 1.7 in | 0.1 in | 3 | 0 | 3 | mild |
| March | 74°F | 52°F | 2.3 in | 0.0 in | 4 | 1 | 1 | mild |
| April | 80°F | 58°F | 2.4 in | 0.0 in | 4 | 3 | 0 | warm |
| May | 87°F | 66°F | 4.4 in | 0.0 in | 5 | 12 | 0 | warm |
| June | 92°F | 73°F | 3.3 in | 0.0 in | 5 | 24 | 0 | hot |
| July | 95°F | 75°F | 2.4 in | 0.0 in | 3 | 29 | 0 | hot |
| August | 96°F | 75°F | 2.2 in | 0.0 in | 3 | 29 | 0 | very hot |
| September | 90°F | 70°F | 3.9 in | 0.0 in | 5 | 20 | 0 | hot |
| October | 82°F | 60°F | 3.8 in | 0.0 in | 4 | 6 | 0 | warm |
| November | 72°F | 50°F | 2.1 in | 0.0 in | 3 | 0 | 1 | mild |
| December | 65°F | 42°F | 2.0 in | 0.1 in | 3 | 0 | 4 | mild |
| Year | 80°F avg | 59°F avg | 32.4 in | 0.2 in | 46 | 122 | 14 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station San Antonio Intl. Airport, TX (USW00012921), 7.5 miles from the city center. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in San Antonio
The shortest day is December 21, with 10h 15m of daylight; the longest is June 21, with 14h 02m. The earliest sunset comes around November 26 (5:34 pm) and the latest around June 24 (8:37 pm). The sun sets after 8 pm on 136 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:29 am | 5:57 pm | 10h 28m |
| February | 7:13 am | 6:23 pm | 11h 10m |
| March | 7:43 am | 7:42 pm | 11h 58m |
| April | 7:07 am | 8:00 pm | 12h 53m |
| May | 6:41 am | 8:19 pm | 13h 37m |
| June | 6:33 am | 8:34 pm | 14h 01m |
| July | 6:44 am | 8:34 pm | 13h 50m |
| August | 7:02 am | 8:13 pm | 13h 11m |
| September | 7:18 am | 7:38 pm | 12h 20m |
| October | 7:35 am | 7:03 pm | 11h 28m |
| November | 6:58 am | 5:38 pm | 10h 40m |
| December | 7:21 am | 5:37 pm | 10h 16m |
Calculated for 2026 at the center of San Antonio with NOAA's solar equations, in local clock time (Central Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is San Antonio getting warmer?
The last 10 years averaged 2.3°F warmer than the 20th century. See the climate stripes for San Antonio.Frequently asked questions
What is the warmest month in San Antonio?
August is the warmest month, with an average high of 96°F and an average low of 75°F (NOAA 1991-2020 normals).
What is the coldest month in San Antonio?
January is the coldest, with average lows of 41°F and highs of 63°F.
What is the rainiest month in San Antonio?
May gets the most precipitation, 4.4 inches on average. February is the driest at 1.7 inches.
Does it snow in San Antonio?
Very little. The normal yearly snowfall is under one inch.
When is the best time to visit San Antonio?
For comfortable weather, February to April and October to December. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to San Antonio?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full San Antonio profile.
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