Viamão
Sunrise and sunset in Viamão
Today’s sunrise, sunset and twilight in Viamão, in local time. At 30.1° S, the day lasts from 10 h 12 min at the winter solstice to 14 h 05 min at the summer solstice.
Today · worked out at
Wednesday, October 21: sunrise at 05:39, sunset at 18:38.
Day length 12 h 59 min, 1 min 44 s longer than yesterday.
Solar noon at 12:08, with the Sun 71° above the horizon.
Times are Viamão time (GMT-3).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 04:15 | 20:02 |
| Nautical twilight | 04:45 | 19:32 |
| Civil twilight | 05:14 | 19:03 |
| Sunrise and sunset | 05:39 | 18:38 |
| Golden hour | 05:39–06:11 | 18:06–18:38 |
Each twilight begins at the morning time and ends at the evening one.
The year in Viamão
- Longest day: December 21, 14 h 05 min, from sunrise at 05:19 to sunset at 19:24.
- Shortest day: June 21, 10 h 12 min, from sunrise at 07:19 to sunset at 17:32.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 05:42 | 19:27 | 13 h 45 min |
| February 21 | 06:09 | 19:05 | 12 h 57 min |
| March 21 | 06:28 | 18:33 | 12 h 06 min |
| April 21 | 06:46 | 17:58 | 11 h 11 min |
| May 21 | 07:05 | 17:35 | 10 h 30 min |
| June 21 | 07:19 | 17:32 | 10 h 12 min |
| July 21 | 07:16 | 17:45 | 10 h 29 min |
| August 21 | 06:51 | 18:03 | 11 h 11 min |
| September 21 | 06:14 | 18:19 | 12 h 05 min |
| October 21 | 05:39 | 18:38 | 12 h 59 min |
| November 21 | 05:17 | 19:03 | 13 h 46 min |
| December 21 | 05:19 | 19:24 | 14 h 05 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 30.1° S, 51° 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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