July 21, 2026 · San Antonio, USA
San Antonio has 13h 47m of daylight today. Sunrise is at 06:48 and sunset is at 20:34. All times are calculated astronomically for San Antonio's exact coordinates.
San Antonio lies at 29°N. At this latitude, day length varies moderately — from around 10 hours in midwinter to 14–15 hours in midsummer.
Day length changes fastest near the spring and autumn equinoxes and slowest near the longest day and shortest day of the year. See the year chart to visualise how daylight hours shift month by month for San Antonio, or see daylight hours for every day of the year.
The longest day in San Antonio is around 14h 2m (around June 21). The shortest is around 10h 15m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 10h 27m | 07:30 | 17:57 |
| February | 11h 8m | 07:15 | 18:23 |
| March | 11h 56m | 07:46 | 19:42 |
| April | 12h 51m | 07:09 | 20:00 |
| May | 13h 36m | 06:43 | 20:19 |
| June | 14h 1m | 06:35 | 20:36 |
| July | 13h 52m | 06:44 | 20:36 |
| August | 13h 14m | 07:02 | 20:17 |
| September | 12h 23m | 07:19 | 19:42 |
| October | 11h 31m | 07:35 | 19:06 |
| November | 10h 42m | 06:58 | 17:41 |
| December | 10h 17m | 07:21 | 17:38 |