July 21, 2026 · Mar del Plata, Argentina
Sunset in Mar del Plata today is at 17:54. Day length is 9h 54m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Mar del Plata's coordinates and updated daily.
Mar del Plata lies at 38°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 Mar del Plata.
The longest day in Mar del Plata is around 14h 48m (around December 21). The shortest is around 9h 31m (around June 21). Days are currently getting longer — gaining about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 20:16 | 05:44 | 14h 31m |
| February | 19:51 | 06:19 | 13h 32m |
| March | 19:12 | 06:48 | 12h 24m |
| April | 18:26 | 07:17 | 11h 9m |
| May | 17:51 | 07:44 | 10h 7m |
| June | 17:38 | 08:05 | 9h 33m |
| July | 17:49 | 08:04 | 9h 45m |
| August | 18:14 | 07:38 | 10h 37m |
| September | 18:40 | 06:53 | 11h 47m |
| October | 19:07 | 06:07 | 12h 60m |
| November | 19:40 | 05:31 | 14h 8m |
| December | 20:09 | 05:23 | 14h 46m |