Sunrise & Sunset Tomorrow in Boulder, United States 🇺🇸
Tomorrow in Boulder the sun rises at 05:53 and sets at 20:21. Right now Boulder loses roughly 1m 42s of daylight per day, near 12 minutes a week.
Tomorrow's Date: Sat, Jul 25, 2026
Sun Phase Tomorrow: Daylight
Sunrise Tomorrow: 05:53 ↑ 63.3° ENE
Sunset Tomorrow: 20:21 ↑ 296.5° WNW
Day Length Tomorrow: 14h 27m
Sun Direction Tomorrow: WSW
Sun Altitude Tomorrow: 58.88°
Sun Distance Tomorrow: 151.952 million km
* Note: Live sun position values (phase, direction, and altitude) reflect exactly where the sun will be at this current time, tomorrow.
Next Equinox: Tuesday, September 22, 2026 (September Equinox)
When Is Sunrise & Sunset in Boulder?
July 2026 Sunrise & Sunset Times in Boulder
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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 |
05:36
↑
58° ENE
|
20:33
↑
302° WNW
|
14h 57m | -0m 35s | 03:33 | 22:36 | 04:21 | 21:48 | 05:02 | 21:06 | 13:04 | 152.08 |
| 2 |
05:36
↑
58° ENE
|
20:33
↑
301° WNW
|
14h 56m | -0m 38s | 03:34 | 22:35 | 04:22 | 21:47 | 05:03 | 21:06 | 13:05 | 152.08 |
| 3 |
05:37
↑
59° ENE
|
20:33
↑
301° WNW
|
14h 55m | -0m 42s | 03:35 | 22:35 | 04:22 | 21:47 | 05:04 | 21:06 | 13:05 | 152.08 |
| 4 |
05:37
↑
59° ENE
|
20:33
↑
301° WNW
|
14h 55m | -0m 45s | 03:36 | 22:34 | 04:23 | 21:47 | 05:04 | 21:06 | 13:05 | 152.09 |
| 5 |
05:38
↑
59° ENE
|
20:32
↑
301° WNW
|
14h 54m | -0m 48s | 03:36 | 22:34 | 04:24 | 21:46 | 05:05 | 21:05 | 13:05 | 152.09 |
| 6 |
05:39
↑
59° ENE
|
20:32
↑
301° WNW
|
14h 53m | -0m 52s | 03:37 | 22:33 | 04:25 | 21:46 | 05:05 | 21:05 | 13:05 | 152.09 |
| 7 |
05:39
↑
59° ENE
|
20:32
↑
301° WNW
|
14h 52m | -0m 55s | 03:38 | 22:32 | 04:25 | 21:45 | 05:06 | 21:05 | 13:05 | 152.09 |
| 8 |
05:40
↑
59° ENE
|
20:31
↑
301° WNW
|
14h 51m | -0m 58s | 03:39 | 22:32 | 04:26 | 21:45 | 05:07 | 21:04 | 13:06 | 152.09 |
| 9 |
05:40
↑
60° ENE
|
20:31
↑
300° WNW
|
14h 50m | -1m 01s | 03:40 | 22:31 | 04:27 | 21:44 | 05:08 | 21:04 | 13:06 | 152.09 |
| 10 |
05:41
↑
60° ENE
|
20:31
↑
300° WNW
|
14h 49m | -1m 04s | 03:41 | 22:30 | 04:28 | 21:44 | 05:08 | 21:03 | 13:06 | 152.08 |
| 11 |
05:42
↑
60° ENE
|
20:30
↑
300° WNW
|
14h 48m | -1m 07s | 03:42 | 22:29 | 04:29 | 21:43 | 05:09 | 21:03 | 13:06 | 152.08 |
| 12 |
05:43
↑
60° ENE
|
20:30
↑
300° WNW
|
14h 47m | -1m 10s | 03:44 | 22:28 | 04:30 | 21:42 | 05:10 | 21:02 | 13:06 | 152.08 |
| 13 |
05:43
↑
60° ENE
|
20:29
↑
300° WNW
|
14h 45m | -1m 13s | 03:45 | 22:27 | 04:31 | 21:42 | 05:11 | 21:02 | 13:06 | 152.07 |
| 14 |
05:44
↑
60° ENE
|
20:29
↑
299° WNW
|
14h 44m | -1m 16s | 03:46 | 22:26 | 04:32 | 21:41 | 05:11 | 21:01 | 13:06 | 152.07 |
| 15 |
05:45
↑
61° ENE
|
20:28
↑
299° WNW
|
14h 43m | -1m 19s | 03:47 | 22:25 | 04:33 | 21:40 | 05:12 | 21:00 | 13:07 | 152.06 |
| 16 |
05:46
↑
61° ENE
|
20:27
↑
299° WNW
|
14h 41m | -1m 22s | 03:48 | 22:24 | 04:34 | 21:39 | 05:13 | 21:00 | 13:07 | 152.05 |
| 17 |
05:46
↑
61° ENE
|
20:27
↑
299° WNW
|
14h 40m | -1m 25s | 03:50 | 22:23 | 04:35 | 21:38 | 05:14 | 20:59 | 13:07 | 152.04 |
| 18 |
05:47
↑
61° ENE
|
20:26
↑
298° WNW
|
14h 39m | -1m 27s | 03:51 | 22:22 | 04:36 | 21:37 | 05:15 | 20:58 | 13:07 | 152.03 |
| 19 |
05:48
↑
62° ENE
|
20:25
↑
298° WNW
|
14h 37m | -1m 30s | 03:52 | 22:21 | 04:37 | 21:37 | 05:16 | 20:58 | 13:07 | 152.02 |
| 20 |
05:49
↑
62° ENE
|
20:25
↑
298° WNW
|
14h 36m | -1m 32s | 03:54 | 22:19 | 04:38 | 21:36 | 05:17 | 20:57 | 13:07 | 152.01 |
| 21 |
05:50
↑
62° ENE
|
20:24
↑
298° WNW
|
14h 34m | -1m 35s | 03:55 | 22:18 | 04:39 | 21:35 | 05:18 | 20:56 | 13:07 | 152.00 |
| 22 |
05:50
↑
62° ENE
|
20:23
↑
297° WNW
|
14h 32m | -1m 37s | 03:56 | 22:17 | 04:40 | 21:34 | 05:19 | 20:55 | 13:07 | 151.99 |
| 23 |
05:51
↑
63° ENE
|
20:22
↑
297° WNW
|
14h 31m | -1m 40s | 03:58 | 22:16 | 04:41 | 21:33 | 05:20 | 20:54 | 13:07 | 151.98 |
| 24 |
05:52
↑
63° ENE
|
20:22
↑
297° WNW
|
14h 29m | -1m 42s | 03:59 | 22:14 | 04:42 | 21:31 | 05:21 | 20:53 | 13:07 | 151.96 |
| 25 |
05:53
↑
63° ENE
|
20:21
↑
296° WNW
|
14h 27m | -1m 44s | 04:00 | 22:13 | 04:43 | 21:30 | 05:21 | 20:52 | 13:07 | 151.95 |
| 26 |
05:54
↑
64° ENE
|
20:20
↑
296° WNW
|
14h 25m | -1m 46s | 04:02 | 22:11 | 04:44 | 21:29 | 05:22 | 20:51 | 13:07 | 151.93 |
| 27 |
05:55
↑
64° ENE
|
20:19
↑
296° WNW
|
14h 24m | -1m 48s | 04:03 | 22:10 | 04:45 | 21:28 | 05:23 | 20:50 | 13:07 | 151.92 |
| 28 |
05:56
↑
64° ENE
|
20:18
↑
296° WNW
|
14h 22m | -1m 50s | 04:05 | 22:08 | 04:47 | 21:27 | 05:24 | 20:49 | 13:07 | 151.90 |
| 29 |
05:57
↑
65° ENE
|
20:17
↑
295° WNW
|
14h 20m | -1m 52s | 04:06 | 22:07 | 04:48 | 21:26 | 05:25 | 20:48 | 13:07 | 151.89 |
| 30 |
05:58
↑
65° ENE
|
20:16
↑
295° WNW
|
14h 18m | -1m 54s | 04:07 | 22:05 | 04:49 | 21:24 | 05:26 | 20:47 | 13:07 | 151.87 |
| 31 |
05:58
↑
65° ENE
|
20:15
↑
295° WNW
|
14h 16m | -1m 56s | 04:09 | 22:04 | 04:50 | 21:23 | 05:27 | 20:46 | 13:07 | 151.85 |
|
All times are in local time for Boulder. 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 Boulder, the earliest sunrise of July is on July 01 or July 02 and the latest sunset of July is on July 01 to 04.
2026 Sun Graph for Boulder
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Sun's Path on Selected Date in Boulder
Tomorrow's Sunrise & Sunset times in other cities in United States:
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Is the Day Getting Longer or Shorter in Boulder?
Days in Boulder are currently getting shorter by about 1m 42s each day, roughly 12 minutes less daylight per week.
Golden Hour & Blue Hour in Boulder Today
| Morning | Evening | |
|---|---|---|
| Blue hour | 05:21-05:33 | 20:41-20:53 |
| Golden hour | 05:33-06:30 | 19:44-20:41 |
Boulder's Longest and Shortest Days
| Event | Date | Daylight |
|---|---|---|
| Longest day | June 22, 2026 | -9h 00m |
| Shortest day | December 21, 2026 | 9h 19m |
| Earliest sunrise | June 14, 2026 | 05:31 |
| 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.
Boulder sees its golden hour today around 05:33-06:30 and 19:44-20:41, framed by the blue hour at 05:21-05:33 and 20:41-20:53. As the sun's arc shifts with the seasons, these windows move with it.
Frequently Asked Questions about Sun in Boulder tomorrow
What time is sunrise in Boulder tomorrow?
Sunrise in Boulder tomorrow is at 05:53 local time.
What time is sunset in Boulder tomorrow?
Sunset in Boulder tomorrow is at 20:21 local time.
What time is solar noon in Boulder tomorrow?
Solar noon in Boulder — when the sun is at its highest point in the sky — is at 13:07 local time tomorrow.
When does civil twilight begin and end in Boulder?
In Boulder tomorrow: civil twilight begins at 05:21 (before sunrise) and ends at 20:52 (after sunset). Civil twilight is the brightest of the three twilight phases.
When does nautical twilight occur in Boulder?
Nautical twilight in Boulder tomorrow runs from 04:43 in the morning to 21:30 in the evening — the period when the horizon is still visible to sailors but stars are out.
When is the sky fully dark in Boulder for stargazing?
Astronomical twilight in Boulder ends at 22:13 in the evening and resumes at 04:00 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 Boulder?
Tomorrow in Boulder, the sun rises at an azimuth of 63° and sets at 297° (measured clockwise from due north). The exact angle shifts slightly each day with the seasons.
