Gualeguaychú
Sunrise and sunset in Gualeguaychú
Today’s sunrise, sunset and twilight in Gualeguaychú, in local time. At 33° S, the day lasts from 9 h 58 min at the winter solstice to 14 h 20 min at the summer solstice.
Today · worked out at
Wednesday, October 21: sunrise at 06:06, sunset at 19:11.
Day length 13 h 05 min, 1 min 57 s longer than yesterday.
Solar noon at 12:38, with the Sun 68° above the horizon.
Times are Gualeguaychú time (GMT-3).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 04:39 | 20:38 |
| Nautical twilight | 05:10 | 20:07 |
| Civil twilight | 05:40 | 19:37 |
| Sunrise and sunset | 06:06 | 19:11 |
| Golden hour | 06:06–06:39 | 18:38–19:11 |
Each twilight begins at the morning time and ends at the evening one.
The year in Gualeguaychú
- Longest day: December 21, 14 h 20 min, from sunrise at 05:42 to sunset at 20:02.
- Shortest day: June 21, 9 h 58 min, from sunrise at 07:56 to sunset at 17:55.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 06:06 | 20:03 | 13 h 57 min |
| February 21 | 06:35 | 19:38 | 13 h 03 min |
| March 21 | 06:58 | 19:03 | 12 h 06 min |
| April 21 | 07:20 | 18:24 | 11 h 05 min |
| May 21 | 07:41 | 17:59 | 10 h 18 min |
| June 21 | 07:56 | 17:55 | 9 h 58 min |
| July 21 | 07:52 | 18:09 | 10 h 17 min |
| August 21 | 07:24 | 18:29 | 11 h 05 min |
| September 21 | 06:44 | 18:49 | 12 h 05 min |
| October 21 | 06:06 | 19:11 | 13 h 05 min |
| November 21 | 05:40 | 19:39 | 13 h 58 min |
| December 21 | 05:42 | 20:02 | 14 h 20 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 33° S, 58.5° 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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