July 20, 2026 · San Juan, Argentina
Sunset in San Juan today is at 18:52. Day length is 10h 22m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for San Juan's coordinates and updated daily.
San Juan lies at 32°S. At this latitude, day length varies moderately — from around 10 hours in midwinter to 14–15 hours in midsummer.
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 Juan.
The longest day in San Juan is around 14h 12m (around December 21). The shortest is around 10h 5m (around June 21). Days are currently getting longer — gaining about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 20:43 | 06:44 | 13h 59m |
| February | 20:26 | 07:13 | 13h 13m |
| March | 19:54 | 07:34 | 12h 20m |
| April | 19:16 | 07:54 | 11h 21m |
| May | 18:48 | 08:15 | 10h 33m |
| June | 18:38 | 08:32 | 10h 6m |
| July | 18:48 | 08:33 | 10h 16m |
| August | 19:08 | 08:12 | 10h 56m |
| September | 19:26 | 07:35 | 11h 51m |
| October | 19:45 | 06:57 | 12h 48m |
| November | 20:10 | 06:29 | 13h 42m |
| December | 20:35 | 06:24 | 14h 11m |