July 20, 2026 · La Rioja, Argentina
Sunset in La Rioja today is at 18:49. Day length is 10h 30m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for La Rioja's coordinates and updated daily.
La Rioja lies at 29°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 La Rioja.
The longest day in La Rioja is around 14h 2m (around December 21). The shortest is around 10h 15m (around June 21). Days are currently getting longer — gaining about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 20:32 | 06:42 | 13h 50m |
| February | 20:16 | 07:09 | 13h 8m |
| March | 19:47 | 07:28 | 12h 19m |
| April | 19:11 | 07:46 | 11h 25m |
| May | 18:45 | 08:04 | 10h 41m |
| June | 18:37 | 08:20 | 10h 16m |
| July | 18:46 | 08:21 | 10h 25m |
| August | 19:04 | 08:02 | 11h 2m |
| September | 19:20 | 07:28 | 11h 52m |
| October | 19:36 | 06:52 | 12h 45m |
| November | 20:00 | 06:26 | 13h 34m |
| December | 20:23 | 06:23 | 14h 1m |