Sunrise & Sunset Today in Castro Valley, United States 🇺🇸
Sun Phase: Daylight
Sunrise Today: 06:05 ↑ 64.0° ENE
Sunset Today: 20:23 ↑ 295.8° WNW
Day Length: 14h 17m
Sun Direction: ESE
Sun Altitude: 51.92°
Sun Distance: 151.954 million km
Next Equinox: Tuesday, September 22, 2026 (September Equinox)
When Is Sunrise & Sunset in Castro Valley?
July 2026 Sunrise & Sunset Times in Castro Valley
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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 |
05:50
↑
60° ENE
|
20:33
↑
300° WNW
|
14h 42m | -0m 32s | 03:56 | 22:27 | 04:40 | 21:44 | 05:19 | 21:05 | 13:12 | 152.08 |
| 2 |
05:51
↑
60° ENE
|
20:33
↑
300° WNW
|
14h 42m | -0m 35s | 03:57 | 22:27 | 04:40 | 21:43 | 05:19 | 21:05 | 13:12 | 152.08 |
| 3 |
05:51
↑
60° ENE
|
20:33
↑
300° WNW
|
14h 41m | -0m 38s | 03:57 | 22:27 | 04:41 | 21:43 | 05:20 | 21:05 | 13:12 | 152.08 |
| 4 |
05:52
↑
60° ENE
|
20:33
↑
300° WNW
|
14h 41m | -0m 41s | 03:58 | 22:26 | 04:42 | 21:43 | 05:20 | 21:04 | 13:12 | 152.09 |
| 5 |
05:52
↑
60° ENE
|
20:33
↑
300° WNW
|
14h 40m | -0m 44s | 03:59 | 22:26 | 04:42 | 21:42 | 05:21 | 21:04 | 13:12 | 152.09 |
| 6 |
05:53
↑
60° ENE
|
20:32
↑
300° WNW
|
14h 39m | -0m 47s | 04:00 | 22:25 | 04:43 | 21:42 | 05:21 | 21:04 | 13:13 | 152.09 |
| 7 |
05:53
↑
60° ENE
|
20:32
↑
300° WNW
|
14h 38m | -0m 50s | 04:00 | 22:25 | 04:44 | 21:42 | 05:22 | 21:03 | 13:13 | 152.09 |
| 8 |
05:54
↑
60° ENE
|
20:32
↑
299° WNW
|
14h 37m | -0m 53s | 04:01 | 22:24 | 04:44 | 21:41 | 05:23 | 21:03 | 13:13 | 152.09 |
| 9 |
05:55
↑
61° ENE
|
20:31
↑
299° WNW
|
14h 36m | -0m 56s | 04:02 | 22:23 | 04:45 | 21:41 | 05:23 | 21:03 | 13:13 | 152.08 |
| 10 |
05:55
↑
61° ENE
|
20:31
↑
299° WNW
|
14h 35m | -0m 59s | 04:03 | 22:23 | 04:46 | 21:40 | 05:24 | 21:02 | 13:13 | 152.08 |
| 11 |
05:56
↑
61° ENE
|
20:31
↑
299° WNW
|
14h 34m | -1m 02s | 04:04 | 22:22 | 04:47 | 21:40 | 05:25 | 21:02 | 13:13 | 152.08 |
| 12 |
05:57
↑
61° ENE
|
20:30
↑
299° WNW
|
14h 33m | -1m 04s | 04:05 | 22:21 | 04:48 | 21:39 | 05:25 | 21:01 | 13:13 | 152.07 |
| 13 |
05:57
↑
61° ENE
|
20:30
↑
298° WNW
|
14h 32m | -1m 07s | 04:06 | 22:20 | 04:48 | 21:38 | 05:26 | 21:01 | 13:14 | 152.07 |
| 14 |
05:58
↑
62° ENE
|
20:29
↑
298° WNW
|
14h 31m | -1m 10s | 04:07 | 22:20 | 04:49 | 21:38 | 05:27 | 21:00 | 13:14 | 152.06 |
| 15 |
05:59
↑
62° ENE
|
20:29
↑
298° WNW
|
14h 30m | -1m 12s | 04:08 | 22:19 | 04:50 | 21:37 | 05:28 | 21:00 | 13:14 | 152.06 |
| 16 |
05:59
↑
62° ENE
|
20:28
↑
298° WNW
|
14h 28m | -1m 15s | 04:09 | 22:18 | 04:51 | 21:36 | 05:28 | 20:59 | 13:14 | 152.05 |
| 17 |
06:00
↑
62° ENE
|
20:28
↑
298° WNW
|
14h 27m | -1m 17s | 04:11 | 22:17 | 04:52 | 21:36 | 05:29 | 20:58 | 13:14 | 152.04 |
| 18 |
06:01
↑
62° ENE
|
20:27
↑
297° WNW
|
14h 26m | -1m 20s | 04:12 | 22:16 | 04:53 | 21:35 | 05:30 | 20:58 | 13:14 | 152.03 |
| 19 |
06:02
↑
63° ENE
|
20:26
↑
297° WNW
|
14h 24m | -1m 22s | 04:13 | 22:15 | 04:54 | 21:34 | 05:31 | 20:57 | 13:14 | 152.02 |
| 20 |
06:02
↑
63° ENE
|
20:26
↑
297° WNW
|
14h 23m | -1m 24s | 04:14 | 22:14 | 04:55 | 21:33 | 05:32 | 20:56 | 13:14 | 152.01 |
| 21 |
06:03
↑
63° ENE
|
20:25
↑
297° WNW
|
14h 22m | -1m 27s | 04:15 | 22:13 | 04:56 | 21:32 | 05:33 | 20:56 | 13:14 | 151.99 |
| 22 |
06:04
↑
63° ENE
|
20:24
↑
296° WNW
|
14h 20m | -1m 29s | 04:16 | 22:12 | 04:57 | 21:31 | 05:33 | 20:55 | 13:14 | 151.98 |
| 23 |
06:05
↑
64° ENE
|
20:24
↑
296° WNW
|
14h 19m | -1m 31s | 04:18 | 22:10 | 04:58 | 21:30 | 05:34 | 20:54 | 13:14 | 151.97 |
| 24 |
06:05
↑
64° ENE
|
20:23
↑
296° WNW
|
14h 17m | -1m 33s | 04:19 | 22:09 | 04:59 | 21:29 | 05:35 | 20:53 | 13:14 | 151.95 |
| 25 |
06:06
↑
64° ENE
|
20:22
↑
296° WNW
|
14h 15m | -1m 35s | 04:20 | 22:08 | 05:00 | 21:28 | 05:36 | 20:52 | 13:14 | 151.94 |
| 26 |
06:07
↑
65° ENE
|
20:21
↑
295° WNW
|
14h 14m | -1m 37s | 04:21 | 22:07 | 05:01 | 21:27 | 05:37 | 20:51 | 13:14 | 151.92 |
| 27 |
06:08
↑
65° ENE
|
20:20
↑
295° WNW
|
14h 12m | -1m 39s | 04:22 | 22:05 | 05:02 | 21:26 | 05:38 | 20:50 | 13:14 | 151.91 |
| 28 |
06:09
↑
65° ENE
|
20:20
↑
295° WNW
|
14h 10m | -1m 41s | 04:24 | 22:04 | 05:03 | 21:25 | 05:39 | 20:49 | 13:14 | 151.89 |
| 29 |
06:09
↑
66° ENE
|
20:19
↑
294° WNW
|
14h 09m | -1m 43s | 04:25 | 22:03 | 05:04 | 21:24 | 05:40 | 20:48 | 13:14 | 151.88 |
| 30 |
06:10
↑
66° ENE
|
20:18
↑
294° WNW
|
14h 07m | -1m 45s | 04:26 | 22:01 | 05:05 | 21:23 | 05:41 | 20:47 | 13:14 | 151.86 |
| 31 |
06:11
↑
66° ENE
|
20:17
↑
294° WNW
|
14h 05m | -1m 46s | 04:27 | 22:00 | 05:06 | 21:22 | 05:41 | 20:46 | 13:14 | 151.84 |
|
All times are in local time for Castro Valley. Time is adjusted for Daylight Saving Time (DST) when applicable. Calculations account for atmospheric refraction and are based on the Gregorian calendar. Today's date is in the table. |
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In Castro Valley, the earliest sunrise of July is on July 01 and the latest sunset of July is on July 01 to 05.
2026 Sun Graph for Castro Valley
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Sun's Path on Selected Date in Castro Valley
Today's Sunrise & Sunset times in other cities in United States:
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Is the Day Getting Longer or Shorter in Castro Valley?
Days in Castro Valley are currently getting shorter by about 1m 33s each day, roughly 11 minutes less daylight per week.
Golden Hour & Blue Hour in Castro Valley Today
| Morning | Evening | |
|---|---|---|
| Blue hour | 05:35-05:47 | 20:42-20:53 |
| Golden hour | 05:47-06:42 | 19:46-20:42 |
Castro Valley's Longest and Shortest Days
| Event | Date | Daylight |
|---|---|---|
| Longest day | June 22, 2026 | -10h 45m |
| Shortest day | December 21, 2026 | -15h 32m |
| Earliest sunrise | June 8, 2026 | 05:46 |
| Latest sunset | June 20, 2026 | 20:33 |
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.
Castro Valley sees its golden hour today around 05:47-06:42 and 19:46-20:42, framed by the blue hour at 05:35-05:47 and 20:42-20:53. As the sun's arc shifts with the seasons, these windows move with it.
Frequently Asked Questions about Sun in Castro Valley
What time is sunrise in Castro Valley today?
Sunrise in Castro Valley today is at 06:05 local time.
What time is sunset in Castro Valley today?
The sun sets over Castro Valley today at 20:23 local time.
What time is solar noon in Castro Valley today?
Solar noon in Castro Valley — when the sun is at its highest point in the sky — is at 13:14 local time today.
When does civil twilight begin and end in Castro Valley?
In Castro Valley today: civil twilight begins at 05:35 (before sunrise) and ends at 20:53 (after sunset). Civil twilight is the brightest of the three twilight phases.
When does nautical twilight occur in Castro Valley?
Nautical twilight in Castro Valley today runs from 04:59 in the morning to 21:29 in the evening — the period when the horizon is still visible to sailors but stars are out.
When is the sky fully dark in Castro Valley for stargazing?
Astronomical twilight in Castro Valley ends at 22:09 in the evening and resumes at 04:19 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 Castro Valley?
Today in Castro Valley, the sun rises at an azimuth of 64° and sets at 296° (measured clockwise from due north). The exact angle shifts slightly each day with the seasons.
