July 20, 2026 · Rio Branco, Brazil
Sunset in Rio Branco today is at 17:27. Day length is 11h 37m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Rio Branco's coordinates and updated daily.
Rio Branco lies at 10°S. 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 Rio Branco.
The longest day in Rio Branco is around 12h 42m (around December 21). The shortest is around 11h 32m (around June 21).
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 18:00 | 05:21 | 12h 39m |
| February | 17:59 | 05:34 | 12h 26m |
| March | 17:46 | 05:36 | 12h 10m |
| April | 17:29 | 05:35 | 11h 53m |
| May | 17:18 | 05:38 | 11h 40m |
| June | 17:19 | 05:46 | 11h 33m |
| July | 17:25 | 05:50 | 11h 35m |
| August | 17:30 | 05:44 | 11h 46m |
| September | 17:29 | 05:27 | 12h 2m |
| October | 17:27 | 05:09 | 12h 18m |
| November | 17:33 | 05:00 | 12h 34m |
| December | 17:48 | 05:06 | 12h 42m |