Niterói
Sunrise and sunset in Niterói
Today’s sunrise, sunset and twilight in Niterói, in local time. At 22.9° S, the day lasts from 10 h 44 min at the winter solstice to 13 h 33 min at the summer solstice.
Today · worked out at
Thursday, October 22: sunrise at 05:14, sunset at 17:59.
Day length 12 h 46 min, 1 min 16 s longer than yesterday.
Solar noon at 11:36, with the Sun 78° above the horizon.
Times are Niterói time (GMT-3).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 03:56 | 19:17 |
| Nautical twilight | 04:23 | 18:50 |
| Civil twilight | 04:51 | 18:22 |
| Sunrise and sunset | 05:14 | 17:59 |
| Golden hour | 05:14–05:44 | 17:29–17:59 |
Each twilight begins at the morning time and ends at the evening one.
The year in Niterói
- Longest day: December 21, 13 h 33 min, from sunrise at 05:04 to sunset at 18:36.
- Shortest day: June 21, 10 h 44 min, from sunrise at 06:32 to sunset at 17:16.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 05:24 | 18:42 | 13 h 18 min |
| February 21 | 05:44 | 18:27 | 12 h 43 min |
| March 21 | 05:56 | 18:02 | 12 h 06 min |
| April 21 | 06:07 | 17:34 | 11 h 26 min |
| May 21 | 06:20 | 17:16 | 10 h 56 min |
| June 21 | 06:32 | 17:16 | 10 h 44 min |
| July 21 | 06:31 | 17:26 | 10 h 56 min |
| August 21 | 06:12 | 17:38 | 11 h 26 min |
| September 21 | 05:43 | 17:48 | 12 h 05 min |
| October 21 | 05:14 | 17:59 | 12 h 44 min |
| November 21 | 04:59 | 18:17 | 13 h 19 min |
| December 21 | 05:04 | 18:36 | 13 h 33 min |
Good to know
- Sunrise and sunset are when the top of the Sun meets a level horizon, allowing for the usual bending of light by the air. Hills, buildings and height shift what you see by a few minutes.
- Civil, nautical and astronomical twilight end when the Sun is 6°, 12° and 18° below the horizon. Golden hour here is the photographers’ usual definition: the Sun less than 6° above it.
- Worked out when the page loads from NOAA’s solar equations, for 22.9° S, 43.1° W, and accurate to about a minute.
How the layers work, where their data comes from and what they can’t tell you: Day and night, live, The Sun, Moon and planets
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