Sunrise and sunset in Rio Branco in 2026
In 2026, the sun rises in Rio Branco between 4:59 AM (November 16) and 5:50 AM (July 12), and sets between 5:16 PM (May 27) and 6:01 PM (January 26). The longest day is Monday, December 21, with 12 h 43 min of daylight, and the shortest is Sunday, June 21, with 11 h 33 min: a difference of 1 h 10 min.
| Date | Sunrise | Sunset | Day length | Solar noon |
|---|---|---|---|---|
| Jan 1 | 5:14 AM | 5:56 PM | 12 h 42 min | 11:35 AM |
| Jan 15 | 5:21 AM | 6:00 PM | 12 h 38 min | 11:41 AM |
| Feb 1 | 5:29 AM | 6:01 PM | 12 h 32 min | 11:45 AM |
| Feb 15 | 5:33 AM | 5:58 PM | 12 h 25 min | 11:45 AM |
| Mar 1 | 5:35 AM | 5:52 PM | 12 h 17 min | 11:44 AM |
| Mar 15 | 5:35 AM | 5:45 PM | 12 h 9 min | 11:40 AM |
| Apr 1 | 5:35 AM | 5:35 PM | 12 h 0 min | 11:35 AM |
| Apr 15 | 5:35 AM | 5:28 PM | 11 h 53 min | 11:31 AM |
| May 1 | 5:36 AM | 5:21 PM | 11 h 45 min | 11:28 AM |
| May 15 | 5:38 AM | 5:17 PM | 11 h 39 min | 11:28 AM |
| Jun 1 | 5:42 AM | 5:16 PM | 11 h 35 min | 11:29 AM |
| Jun 15 | 5:46 AM | 5:18 PM | 11 h 33 min | 11:32 AM |
| Jul 1 | 5:49 AM | 5:22 PM | 11 h 33 min | 11:35 AM |
| Jul 15 | 5:50 AM | 5:25 PM | 11 h 36 min | 11:37 AM |
| Aug 1 | 5:47 AM | 5:28 PM | 11 h 41 min | 11:38 AM |
| Aug 15 | 5:42 AM | 5:29 PM | 11 h 47 min | 11:36 AM |
| Sep 1 | 5:34 AM | 5:29 PM | 11 h 55 min | 11:31 AM |
| Sep 15 | 5:25 AM | 5:28 PM | 12 h 3 min | 11:26 AM |
| Oct 1 | 5:15 AM | 5:27 PM | 12 h 11 min | 11:21 AM |
| Oct 15 | 5:08 AM | 5:27 PM | 12 h 19 min | 11:17 AM |
| Nov 1 | 5:01 AM | 5:29 PM | 12 h 28 min | 11:15 AM |
| Nov 15 | 4:59 AM | 5:33 PM | 12 h 34 min | 11:16 AM |
| Dec 1 | 5:00 AM | 5:40 PM | 12 h 40 min | 11:20 AM |
| Dec 15 | 5:05 AM | 5:48 PM | 12 h 42 min | 11:27 AM |
Local time in Rio Branco (America/Rio Branco), daylight saving time included, rounded to the minute, for an open horizon at sea level.
Earliest sunset, latest sunrise
The shortest day in Rio Branco is June 21, but the earliest sunset comes on May 27, at 5:16 PM, and the latest sunrise on July 12, at 5:50 AM. This shift comes from the equation of time: around the solstices, solar noon drifts by up to half a minute a day on the clock, so sunrise and sunset do not move symmetrically.
Solar noon and time zone
Rio Branco lies at 9.97° south and 67.82° west. Its standard time, UTC−5, is set on the 75° west meridian, so the sun reaches its highest point in Rio Branco about 29 minutes earlier than on that meridian. Over the year, solar noon falls between 11:15 AM (November 2) and 11:46 AM (February 10) on the clock.
Daylight saving time
Rio Branco does not change its clocks (UTC−5 all year), so sunrise and sunset move only with the seasons: sunrise by 51 min and sunset by 45 min over the year.
Height of the sun and twilight
At solar noon the sun climbs to 90.0° above the horizon on February 22, almost straight overhead, and only 56.6° on June 21. Civil twilight, from first light to sunrise, lasts about 21 minutes at the March equinox and 23 minutes in late June. The day length changes fastest around March 11: 34 s less each day.
The sky gets fully dark every night of the year: even in midsummer, the sun sinks more than 18° below the horizon.
Other cities: São Paulo, Rio de Janeiro, Brasília and Fortaleza. See also the current time in Rio Branco, tonight’s moon phase and sunrise and sunset anywhere.