Sunrise & Sunset Today in Río Cuarto, Argentina 🇦🇷
Sun Phase: Night
Sunrise Today: 08:07 ↑ 69.3° ENE
Sunset Today: 18:39 ↑ 290.6° WNW
Day Length: 10h 32m
Sun Direction: ESE
Sun Altitude: -51.92°
Sun Distance: 151.813 million km
Next Equinox: Tuesday, September 22, 2026 (September Equinox)
When Is Sunrise & Sunset in Río Cuarto?
August 2026 Sunrise & Sunset Times in Río Cuarto
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| Day | Sunrise/Sunset | Daylight | Astronomical Twilight | Nautical Twilight | Civil Twilight | Solar Noon | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunrise | Sunset | Length | Diff. | Start | End | Start | End | Start | End | Time | Sun Dist. (Mil km) | |
| 1 |
08:08
↑
69° ENE
|
18:39
↑
291° WNW
|
10h 30m | +1m 27s | 06:43 | 20:04 | 07:12 | 19:35 | 07:41 | 19:05 | 13:23 | 151.83 |
| 2 |
08:07
↑
69° ENE
|
18:39
↑
291° WNW
|
10h 32m | +1m 29s | 06:42 | 20:05 | 07:11 | 19:36 | 07:41 | 19:06 | 13:23 | 151.81 |
| 3 |
08:06
↑
70° ENE
|
18:40
↑
290° WNW
|
10h 33m | +1m 30s | 06:41 | 20:05 | 07:10 | 19:36 | 07:40 | 19:07 | 13:23 | 151.79 |
| 4 |
08:06
↑
70° ENE
|
18:41
↑
290° WNW
|
10h 35m | +1m 31s | 06:40 | 20:06 | 07:10 | 19:37 | 07:39 | 19:07 | 13:23 | 151.78 |
| 5 |
08:05
↑
70° ENE
|
18:42
↑
290° WNW
|
10h 36m | +1m 33s | 06:40 | 20:07 | 07:09 | 19:37 | 07:38 | 19:08 | 13:23 | 151.76 |
| 6 |
08:04
↑
71° ENE
|
18:42
↑
289° WNW
|
10h 38m | +1m 34s | 06:39 | 20:07 | 07:08 | 19:38 | 07:37 | 19:09 | 13:23 | 151.73 |
| 7 |
08:03
↑
71° ENE
|
18:43
↑
289° WNW
|
10h 40m | +1m 35s | 06:38 | 20:08 | 07:07 | 19:39 | 07:37 | 19:09 | 13:23 | 151.71 |
| 8 |
08:02
↑
71° ENE
|
18:44
↑
289° WNW
|
10h 41m | +1m 36s | 06:37 | 20:08 | 07:06 | 19:39 | 07:36 | 19:10 | 13:23 | 151.69 |
| 9 |
08:01
↑
72° ENE
|
18:44
↑
288° WNW
|
10h 43m | +1m 37s | 06:36 | 20:09 | 07:05 | 19:40 | 07:35 | 19:10 | 13:23 | 151.67 |
| 10 |
08:00
↑
72° ENE
|
18:45
↑
288° WNW
|
10h 44m | +1m 39s | 06:36 | 20:09 | 07:05 | 19:40 | 07:34 | 19:11 | 13:22 | 151.65 |
| 11 |
07:59
↑
72° ENE
|
18:46
↑
288° WNW
|
10h 46m | +1m 40s | 06:35 | 20:10 | 07:04 | 19:41 | 07:33 | 19:12 | 13:22 | 151.62 |
| 12 |
07:58
↑
73° ENE
|
18:46
↑
287° WNW
|
10h 48m | +1m 41s | 06:34 | 20:10 | 07:03 | 19:42 | 07:32 | 19:12 | 13:22 | 151.60 |
| 13 |
07:57
↑
73° ENE
|
18:47
↑
287° WNW
|
10h 49m | +1m 42s | 06:33 | 20:11 | 07:02 | 19:42 | 07:31 | 19:13 | 13:22 | 151.57 |
| 14 |
07:56
↑
73° ENE
|
18:48
↑
286° WNW
|
10h 51m | +1m 43s | 06:32 | 20:12 | 07:01 | 19:43 | 07:30 | 19:14 | 13:22 | 151.55 |
| 15 |
07:55
↑
74° ENE
|
18:48
↑
286° WNW
|
10h 53m | +1m 44s | 06:31 | 20:12 | 07:00 | 19:43 | 07:29 | 19:14 | 13:21 | 151.52 |
| 16 |
07:54
↑
74° ENE
|
18:49
↑
286° WNW
|
10h 55m | +1m 44s | 06:30 | 20:13 | 06:59 | 19:44 | 07:28 | 19:15 | 13:21 | 151.49 |
| 17 |
07:53
↑
75° ENE
|
18:50
↑
285° WNW
|
10h 56m | +1m 45s | 06:29 | 20:13 | 06:58 | 19:44 | 07:27 | 19:16 | 13:21 | 151.46 |
| 18 |
07:52
↑
75° ENE
|
18:50
↑
285° WNW
|
10h 58m | +1m 46s | 06:28 | 20:14 | 06:57 | 19:45 | 07:26 | 19:16 | 13:21 | 151.43 |
| 19 |
07:50
↑
75° ENE
|
18:51
↑
284° WNW
|
11h 00m | +1m 47s | 06:27 | 20:14 | 06:56 | 19:46 | 07:25 | 19:17 | 13:21 | 151.40 |
| 20 |
07:49
↑
76° ENE
|
18:52
↑
284° WNW
|
11h 02m | +1m 48s | 06:26 | 20:15 | 06:55 | 19:46 | 07:24 | 19:17 | 13:20 | 151.37 |
| 21 |
07:48
↑
76° ENE
|
18:52
↑
284° WNW
|
11h 04m | +1m 49s | 06:25 | 20:16 | 06:54 | 19:47 | 07:22 | 19:18 | 13:20 | 151.34 |
| 22 |
07:47
↑
76° ENE
|
18:53
↑
283° WNW
|
11h 05m | +1m 49s | 06:24 | 20:16 | 06:53 | 19:47 | 07:21 | 19:19 | 13:20 | 151.31 |
| 23 |
07:46
↑
77° ENE
|
18:54
↑
283° WNW
|
11h 07m | +1m 50s | 06:23 | 20:17 | 06:51 | 19:48 | 07:20 | 19:19 | 13:20 | 151.28 |
| 24 |
07:45
↑
77° ENE
|
18:54
↑
282° WNW
|
11h 09m | +1m 51s | 06:22 | 20:17 | 06:50 | 19:49 | 07:19 | 19:20 | 13:19 | 151.25 |
| 25 |
07:43
↑
78° ENE
|
18:55
↑
282° WNW
|
11h 11m | +1m 51s | 06:20 | 20:18 | 06:49 | 19:49 | 07:18 | 19:21 | 13:19 | 151.21 |
| 26 |
07:42
↑
78° ENE
|
18:56
↑
282° WNW
|
11h 13m | +1m 52s | 06:19 | 20:19 | 06:48 | 19:50 | 07:17 | 19:21 | 13:19 | 151.18 |
| 27 |
07:41
↑
79° ENE
|
18:56
↑
281° W
|
11h 15m | +1m 53s | 06:18 | 20:19 | 06:47 | 19:50 | 07:15 | 19:22 | 13:19 | 151.15 |
| 28 |
07:40
↑
79° E
|
18:57
↑
281° W
|
11h 17m | +1m 53s | 06:17 | 20:20 | 06:46 | 19:51 | 07:14 | 19:22 | 13:18 | 151.11 |
| 29 |
07:38
↑
79° E
|
18:58
↑
280° W
|
11h 19m | +1m 54s | 06:16 | 20:20 | 06:44 | 19:52 | 07:13 | 19:23 | 13:18 | 151.08 |
| 30 |
07:37
↑
80° E
|
18:58
↑
280° W
|
11h 20m | +1m 54s | 06:15 | 20:21 | 06:43 | 19:52 | 07:12 | 19:24 | 13:18 | 151.05 |
| 31 |
07:36
↑
80° E
|
18:59
↑
280° W
|
11h 22m | +1m 55s | 06:13 | 20:22 | 06:42 | 19:53 | 07:11 | 19:24 | 13:17 | 151.01 |
|
All times are in local time for Río Cuarto. Daylight Saving Time (DST) is not currently in effect. Calculations account for atmospheric refraction and are based on the Gregorian calendar. Today's date is in the table. |
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In Río Cuarto, the earliest sunrise of August is on August 31 and the latest sunset of August is on August 31.
2026 Sun Graph for Río Cuarto
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Sun's Path on Selected Date in Río Cuarto
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Is the Day Getting Longer or Shorter in Río Cuarto?
Days in Río Cuarto are currently getting longer by about 1m 30s each day, roughly 10 minutes more daylight per week.
Golden Hour & Blue Hour in Río Cuarto Today
| Morning | Evening | |
|---|---|---|
| Blue hour | 07:41-07:51 | 18:56-19:06 |
| Golden hour | 07:51-08:42 | 18:05-18:56 |
Río Cuarto's Longest and Shortest Days
| Event | Date | Daylight |
|---|---|---|
| Longest day | December 21, 2026 | 14h 20m |
| Shortest day | June 22, 2026 | 9h 57m |
| Earliest sunrise | December 1, 2026 | 06:01 |
| Latest sunset | January 6, 2027 | 20:30 |
Understanding Twilight & the Golden Hour
After the sun drops below the horizon, the sky does not turn dark all at once. Civil twilight is the brightest stage, when there is still enough natural light for most outdoor activities. Nautical twilight follows, when the sea horizon becomes hard to make out. Astronomical twilight is the darkest stage, after which the sky is fully dark and the faintest stars appear. The same three stages occur in reverse before sunrise, as dawn.
Photographers in Río Cuarto get the golden hour at 07:51-08:42 in the morning and 18:05-18:56 in the evening today; the bluish blue hour falls near 07:41-07:51 and 18:56-19:06. Both windows move across the seasons.
Frequently Asked Questions about Sun in Río Cuarto
What time is sunrise in Río Cuarto today?
The sun rises over Río Cuarto today at 08:07 local time.
What time is sunset in Río Cuarto today?
Sunset in Río Cuarto today is at 18:39 local time.
What time is solar noon in Río Cuarto today?
Solar noon in Río Cuarto — when the sun is at its highest point in the sky — is at 13:23 local time today.
When does civil twilight begin and end in Río Cuarto?
In Río Cuarto today: civil twilight begins at 07:41 (before sunrise) and ends at 19:06 (after sunset). Civil twilight is the brightest of the three twilight phases.
When does nautical twilight occur in Río Cuarto?
Nautical twilight in Río Cuarto today runs from 07:11 in the morning to 19:36 in the evening — the period when the horizon is still visible to sailors but stars are out.
When is the sky fully dark in Río Cuarto for stargazing?
Astronomical twilight in Río Cuarto ends at 20:05 in the evening and resumes at 06:42 in the morning — between those times the sky is fully dark, ideal for observing faint stars and deep-sky objects.
Where on the horizon does the sun rise and set in Río Cuarto?
Today in Río Cuarto, the sun rises at an azimuth of 69° and sets at 291° (measured clockwise from due north). The exact angle shifts slightly each day with the seasons.
