Sunrise & Sunset Tomorrow in Boulder, United States 🇺🇸
Tomorrow in Boulder the sun rises at 06:49 and sets at 18:57. Right now Boulder loses roughly 2m 37s of daylight per day, near 18 minutes a week.
Tomorrow's Date: Tue, Sep 22, 2026
Sun Phase Tomorrow: Daylight
Sunrise Tomorrow: 06:49 ↑ 89.1° E
Sunset Tomorrow: 18:57 ↑ 270.6° W
Day Length Tomorrow: 12h 08m
Sun Direction Tomorrow: ESE
Sun Altitude Tomorrow: 19.99°
Sun Distance Tomorrow: 150.192 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?
September 2026 Sunrise & Sunset Times in Boulder
Scroll to the right to view more
| 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 |
06:29
↑
79° ENE
|
19:32
↑
281° W
|
13h 02m | -2m 31s | 04:53 | 21:07 | 05:27 | 20:33 | 06:00 | 20:00 | 13:01 | 150.96 |
| 2 |
06:30
↑
79° E
|
19:30
↑
281° W
|
13h 00m | -2m 31s | 04:54 | 21:05 | 05:29 | 20:31 | 06:01 | 19:58 | 13:00 | 150.93 |
| 3 |
06:31
↑
80° E
|
19:28
↑
280° W
|
12h 57m | -2m 32s | 04:55 | 21:03 | 05:30 | 20:29 | 06:02 | 19:57 | 13:00 | 150.89 |
| 4 |
06:32
↑
80° E
|
19:27
↑
280° W
|
12h 55m | -2m 32s | 04:57 | 21:01 | 05:31 | 20:27 | 06:03 | 19:55 | 13:00 | 150.86 |
| 5 |
06:33
↑
81° E
|
19:25
↑
279° W
|
12h 52m | -2m 33s | 04:58 | 20:59 | 05:32 | 20:26 | 06:04 | 19:53 | 12:59 | 150.82 |
| 6 |
06:33
↑
81° E
|
19:24
↑
279° W
|
12h 50m | -2m 33s | 04:59 | 20:58 | 05:33 | 20:24 | 06:05 | 19:52 | 12:59 | 150.79 |
| 7 |
06:34
↑
82° E
|
19:22
↑
278° W
|
12h 47m | -2m 33s | 05:00 | 20:56 | 05:34 | 20:22 | 06:06 | 19:50 | 12:59 | 150.75 |
| 8 |
06:35
↑
82° E
|
19:20
↑
278° W
|
12h 44m | -2m 34s | 05:01 | 20:54 | 05:35 | 20:20 | 06:07 | 19:48 | 12:58 | 150.71 |
| 9 |
06:36
↑
82° E
|
19:19
↑
277° W
|
12h 42m | -2m 34s | 05:03 | 20:52 | 05:36 | 20:19 | 06:08 | 19:47 | 12:58 | 150.67 |
| 10 |
06:37
↑
83° E
|
19:17
↑
277° W
|
12h 39m | -2m 34s | 05:04 | 20:50 | 05:37 | 20:17 | 06:09 | 19:45 | 12:58 | 150.64 |
| 11 |
06:38
↑
84° E
|
19:15
↑
276° W
|
12h 37m | -2m 34s | 05:05 | 20:48 | 05:38 | 20:15 | 06:10 | 19:43 | 12:57 | 150.60 |
| 12 |
06:39
↑
84° E
|
19:14
↑
276° W
|
12h 34m | -2m 35s | 05:06 | 20:46 | 05:39 | 20:13 | 06:11 | 19:42 | 12:57 | 150.56 |
| 13 |
06:40
↑
84° E
|
19:12
↑
275° W
|
12h 32m | -2m 35s | 05:07 | 20:45 | 05:40 | 20:12 | 06:12 | 19:40 | 12:57 | 150.52 |
| 14 |
06:41
↑
85° E
|
19:10
↑
275° W
|
12h 29m | -2m 35s | 05:08 | 20:43 | 05:41 | 20:10 | 06:13 | 19:38 | 12:56 | 150.48 |
| 15 |
06:42
↑
86° E
|
19:09
↑
274° W
|
12h 26m | -2m 35s | 05:10 | 20:41 | 05:42 | 20:08 | 06:14 | 19:36 | 12:56 | 150.44 |
| 16 |
06:43
↑
86° E
|
19:07
↑
274° W
|
12h 24m | -2m 36s | 05:11 | 20:39 | 05:43 | 20:07 | 06:15 | 19:35 | 12:56 | 150.40 |
| 17 |
06:44
↑
87° E
|
19:05
↑
273° W
|
12h 21m | -2m 36s | 05:12 | 20:37 | 05:44 | 20:05 | 06:16 | 19:33 | 12:55 | 150.36 |
| 18 |
06:45
↑
87° E
|
19:04
↑
273° W
|
12h 19m | -2m 36s | 05:13 | 20:35 | 05:45 | 20:03 | 06:17 | 19:31 | 12:55 | 150.31 |
| 19 |
06:46
↑
88° E
|
19:02
↑
272° W
|
12h 16m | -2m 36s | 05:14 | 20:34 | 05:46 | 20:01 | 06:18 | 19:30 | 12:55 | 150.27 |
| 20 |
06:47
↑
88° E
|
19:01
↑
272° W
|
12h 13m | -2m 36s | 05:15 | 20:32 | 05:47 | 20:00 | 06:19 | 19:28 | 12:54 | 150.23 |
| 21 |
06:48
↑
89° E
|
18:59
↑
271° W
|
12h 11m | -2m 36s | 05:16 | 20:30 | 05:48 | 19:58 | 06:20 | 19:26 | 12:54 | 150.19 |
| 22 |
06:49
↑
89° E
|
18:57
↑
271° W
|
12h 08m | -2m 36s | 05:17 | 20:28 | 05:49 | 19:56 | 06:21 | 19:25 | 12:53 | 150.15 |
| 23 |
06:50
↑
90° E
|
18:56
↑
270° W
|
12h 06m | -2m 36s | 05:18 | 20:26 | 05:50 | 19:54 | 06:22 | 19:23 | 12:53 | 150.10 |
| 24 |
06:50
↑
90° E
|
18:54
↑
270° W
|
12h 03m | -2m 36s | 05:19 | 20:25 | 05:51 | 19:53 | 06:23 | 19:21 | 12:53 | 150.06 |
| 25 |
06:51
↑
91° E
|
18:52
↑
269° W
|
12h 00m | -2m 36s | 05:21 | 20:23 | 05:52 | 19:51 | 06:24 | 19:20 | 12:52 | 150.02 |
| 26 |
06:52
↑
91° E
|
18:51
↑
269° W
|
11h 58m | -2m 36s | 05:22 | 20:21 | 05:53 | 19:49 | 06:25 | 19:18 | 12:52 | 149.98 |
| 27 |
06:53
↑
92° E
|
18:49
↑
268° W
|
11h 55m | -2m 36s | 05:23 | 20:19 | 05:54 | 19:48 | 06:26 | 19:16 | 12:52 | 149.93 |
| 28 |
06:54
↑
92° E
|
18:47
↑
268° W
|
11h 52m | -2m 36s | 05:24 | 20:18 | 05:55 | 19:46 | 06:27 | 19:15 | 12:51 | 149.89 |
| 29 |
06:55
↑
93° E
|
18:46
↑
267° W
|
11h 50m | -2m 36s | 05:25 | 20:16 | 05:56 | 19:44 | 06:28 | 19:13 | 12:51 | 149.85 |
| 30 |
06:56
↑
93° E
|
18:44
↑
267° W
|
11h 47m | -2m 36s | 05:26 | 20:14 | 05:57 | 19:43 | 06:29 | 19:12 | 12:51 | 149.81 |
|
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. |
||||||||||||
In Boulder, the earliest sunrise of September is on September 01 and the latest sunset of September is on September 01.
2026 Sun Graph for Boulder
Loading sun data...
Sun's Path on Selected Date in Boulder
Tomorrow's Sunrise & Sunset times in other cities in United States:
Browse Sunrise Times in United States by cities in alphabetical order:
Sunrise & Sunset times in United States ›
Is the Day Getting Longer or Shorter in Boulder?
Days in Boulder are currently getting shorter by about 2m 37s each day, roughly 18 minutes less daylight per week.
Golden Hour & Blue Hour in Boulder Today
| Morning | Evening | |
|---|---|---|
| Blue hour | 06:20-06:30 | 19:16-19:26 |
| Golden hour | 06:30-07:22 | 18:24-19:16 |
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 |
Qibla Direction & Distance to Mecca From Boulder
The same solar geometry that fixes sunrise and sunset in Boulder also fixes the Qibla: face 35deg (NE) and the Kaaba in Mecca lies about 12,285 km ahead. Check the Qibla direction from Boulder on a live compass.
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 06:30-07:22 and 18:24-19:16, framed by the blue hour at 06:20-06:30 and 19:16-19:26. 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 06:49 local time.
What time is sunset in Boulder tomorrow?
Sunset in Boulder tomorrow is at 18:57 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 12:53 local time tomorrow.
When does civil twilight begin and end in Boulder?
In Boulder tomorrow: civil twilight begins at 06:21 (before sunrise) and ends at 19:25 (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 05:49 in the morning to 19:56 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 20:28 in the evening and resumes at 05:17 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 89° and sets at 271° (measured clockwise from due north). The exact angle shifts slightly each day with the seasons.
