Look up the exact time darkness falls in San Antonio, TX for any date of the year. Sunset times, civil dusk, full twilight schedule, and daylight changes.
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Today — Wednesday, November 4, 2026
It gets dark at 06:09 PM in San Antonio
Sunrise
06:49 AM
Sunset
05:45 PM
Gets Dark
06:09 PM
Day Length
10h 56m
San Antonio is losing 1m 29s of daylight per day
Darkness arrives earliest on November 30 at 6:00 PM and latest on June 29 at 9:04 PM, a swing of 3 h 4 min across the year.
The longest day brings 14 h 2 min of daylight and the shortest just 10 h 16 min. The earliest dusk comes about 21 days away from the shortest day, because Earth's oval orbit shifts solar noon through the year.
After sunset, twilight lasts about 24 min at the March equinox and stretches to 27 min in midsummer. Near the equator it is only about 21 min year-round.
In San Antonio, on 41 evenings it stays light until after 9 pm.
San Antonio sits toward the western side of its time zone, so the sun runs about 32 min behind the clock. That pushes sunsets later than in towns further east.
San Antonio lies 3,272 km (2,033 miles) north of the equator at 29.42°N. That is almost the same latitude as Cairo, so both see a similar yearly rhythm of daylight.
This page shows exactly when it gets dark in San Antonio, TX, United States for any day of the year. The interactive tool above lets you pick any date to see the precise sunset time, civil dusk (when true darkness begins), and the full twilight schedule including nautical and astronomical dawn and dusk.
San Antonio is located at latitude 29.42° and longitude -98.49°. The time darkness falls changes throughout the year based on Earth's axial tilt — earlier in winter, later in summer. Use the date picker above to check any date.
Whether you're planning trick-or-treating for Halloween, a fireworks display, an outdoor wedding, or an evening event in San Antonio, knowing the exact time darkness falls is essential. This tool calculates civil dusk — when the sun drops 6 degrees below the horizon — for any date at San Antonio's exact coordinates.
The site also shows the daily daylight delta — how much daylight San Antonio is gaining or losing each day — and a year-long daylight curve showing how day length rises and falls across all 365 days.