San Antonio, TX · 2026
Sunrise and sunset in San Antonio, Texas
Short answer
- Longest day
- 14 h 02 min
- Shortest day
- 10 h 15 min
San Antonio daylight through 2026
Daylight in San Antonio runs from 10 h 15 min on December 21 to 14 h 02 min on June 21, a seasonal swing of 3 h 47 min between June 21 and December 21. That swing ranks 313th of 342 US cities of 100,000+, where 1st is the largest. Around the March equinox the city gets 12 h 08 min, and around the September equinox 12 h 08 min.
San Antonio daylight by month
| Month | Average | Sunrise | Sunset |
|---|---|---|---|
| January | 10 h 31 min | 7:23 AM to 7:29 AM | 5:46 PM to 6:11 PM |
| February | 11 h 10 min | 7:00 AM to 7:23 AM | 6:12 PM to 6:32 PM |
| March | 12 h 01 min | 6:52 AM to 7:51 AM | 6:33 PM to 7:52 PM |
| April | 12 h 54 min | 6:52 AM to 7:23 AM | 7:52 PM to 8:10 PM |
| May | 13 h 38 min | 6:34 AM to 6:51 AM | 8:10 PM to 8:29 PM |
| June | 14 h 00 min | 6:33 AM to 6:37 AM | 8:29 PM to 8:38 PM |
| July | 13 h 49 min | 6:37 AM to 6:53 AM | 8:27 PM to 8:38 PM |
| August | 13 h 10 min | 6:54 AM to 7:11 AM | 7:57 PM to 8:26 PM |
| September | 12 h 19 min | 7:11 AM to 7:26 AM | 7:20 PM to 7:55 PM |
| October | 11 h 26 min | 7:27 AM to 7:46 AM | 6:48 PM to 7:19 PM |
| November | 10 h 41 min | 6:47 AM to 7:10 AM | 5:35 PM to 5:47 PM |
| December | 10 h 18 min | 7:11 AM to 7:28 AM | 5:34 PM to 5:46 PM |
Earliest sunrise, latest sunset and the clock
The earliest sunrise comes on June 6 at 6:33 AM and the latest sunset on June 29 at 8:38 PM. The latest sunrise is 7:51 AM on March 8. Daylight saving time starts and ends on March 8 and November 1, which shifts every clock time by an hour.
On standard time the clocks run 6 hours behind UTC, the time of the 90° W meridian. San Antonio sits at 98.52° W, so the sun runs about 34 minutes behind the zone clock. Solar noon is at 12:43 PM on January 15 and 1:40 PM on July 15.
Compared with nearby cities
Austin, the state capital, gets 4 minutes more daylight than San Antonio on June 21 and 4 minutes less on December 21. Day length depends on latitude, so the table lists the paired cities from north to south.
| City | Latitude | June 21 | December 21 |
|---|---|---|---|
| Killeen, TX | 31.08° N | 14 h 10 min | 10 h 08 min |
| Georgetown, TX | 30.67° N | 14 h 08 min | 10 h 10 min |
| College Station, TX | 30.59° N | 14 h 08 min | 10 h 10 min |
| Round Rock, TX | 30.53° N | 14 h 07 min | 10 h 10 min |
| Austin, TX | 30.30° N | 14 h 06 min | 10 h 11 min |
| New Braunfels, TX | 29.70° N | 14 h 03 min | 10 h 14 min |
| San Antonio, TX | 29.46° N | 14 h 02 min | 10 h 15 min |
| Corpus Christi, TX | 27.75° N | 13 h 54 min | 10 h 23 min |
| Laredo, TX | 27.56° N | 13 h 53 min | 10 h 24 min |
| Edinburg, TX | 26.32° N | 13 h 47 min | 10 h 29 min |
| McAllen, TX | 26.23° N | 13 h 47 min | 10 h 30 min |
| Brownsville, TX | 26.00° N | 13 h 46 min | 10 h 31 min |
Questions people ask
What is the longest day of the year in San Antonio?
June 21, 2026, with 14 h 02 min of daylight: sunrise 6:34 AM, sunset 8:37 PM.
What is the shortest day in San Antonio?
December 21, 2026, with 10 h 15 min: sunrise 7:24 AM, sunset 5:40 PM.
When is the latest sunset in San Antonio?
8:38 PM on June 29, 2026. The earliest sunset is 5:34 PM on December 1.
What time zone is San Antonio in?
America/Chicago. Clocks change on March 8 (to CDT) and November 1 (to CST) in 2026.
Sources and data as of
Data as of: computed for 2026 at the Census internal point of San Antonio, 29.463° N, 98.525° W; time zone from Open-Meteo.
- 01SunCalc library (Vladimir Agafonkin), algorithms after Jean Meeus
- 02IANA time zone database (clock times and daylight saving rules)
How every number is computed: methodology. Spotted a wrong figure? Report an error.