July 20, 2026 · San Marcos, El Salvador
Sunset in San Marcos today is at 18:28. Day length is 12h 49m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for San Marcos's coordinates and updated daily.
San Marcos lies at 14°N. Near the tropics, day length stays close to 12 hours year-round, with only minor variation between seasons.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for San Marcos.
The longest day in San Marcos is around 12h 56m (around June 21). The shortest is around 11h 19m (around December 21).
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 17:48 | 06:24 | 11h 24m |
| February | 18:03 | 06:21 | 11h 41m |
| March | 18:08 | 06:06 | 12h 2m |
| April | 18:10 | 05:45 | 12h 25m |
| May | 18:16 | 05:31 | 12h 45m |
| June | 18:26 | 05:30 | 12h 56m |
| July | 18:29 | 05:37 | 12h 52m |
| August | 18:20 | 05:45 | 12h 36m |
| September | 18:00 | 05:47 | 12h 13m |
| October | 17:39 | 05:48 | 11h 51m |
| November | 17:27 | 05:57 | 11h 30m |
| December | 17:32 | 06:12 | 11h 20m |