July 21, 2026 · Siem Reap, Cambodia
Sunset in Siem Reap today is at 18:36. Day length is 12h 48m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Siem Reap's coordinates and updated daily.
Siem Reap lies at 13°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 Siem Reap.
The longest day in Siem Reap is around 12h 55m (around June 21). The shortest is around 11h 20m (around December 21).
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 17:57 | 06:32 | 11h 25m |
| February | 18:11 | 06:29 | 11h 42m |
| March | 18:16 | 06:13 | 12h 2m |
| April | 18:18 | 05:53 | 12h 25m |
| May | 18:24 | 05:40 | 12h 44m |
| June | 18:33 | 05:39 | 12h 54m |
| July | 18:36 | 05:46 | 12h 51m |
| August | 18:27 | 05:53 | 12h 35m |
| September | 18:07 | 05:54 | 12h 13m |
| October | 17:47 | 05:56 | 11h 51m |
| November | 17:36 | 06:04 | 11h 31m |
| December | 17:41 | 06:20 | 11h 21m |