What time is sunrise and sunset in Boulder?
Today and tomorrow's sunrise and sunset times in Boulder, Colorado. Plus a monthly calendar with dawn, dusk, solar noon, and day length.
Today
Sunrise
7:03 AM
99° EDawn 6:36 AM
Sunrise in Boulder was at 7:03:18 AM MDT (14h 50m ago).
Sunset
6:30 PM
261° WDusk 6:57 PM
Sunset in Boulder was at 6:30:08 PM MDT (3h 23m ago).
Now
7:03a6:30p
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Night now
- Daylight
- 11h 26m
- Darkness
- 9h 47m
- Solar noon
- 12:47 PM
- Sun altitude
- 39.8° below
- Sun direction
- 297° WNW
Tomorrow
Sunrise
7:04 AM
99° EDawn 6:37 AM
Sunrise in Boulder will be at 7:04:20 AM MDT (in 9h 11m).
Sunset
6:28 PM
260° WDusk 6:55 PM
Sunset in Boulder will be at 6:28:39 PM MDT (in 20h 35m).
Moon tonight
Phase, moonrise and moonset in Boulder
Waxing Crescent
16% illuminated
- Moonrise
- 11:31 AM
- Moonset
- 8:26 PM
Calendar
Mountain Time · select a day to expand
| Date | Dawn | Sunrise | Solar noon | Sunset | Dusk | Length | |
|---|---|---|---|---|---|---|---|
| 1 Thu | 6:23 AM | 6:50 AM | 12:50 PM | 6:50 PM | 7:17 PM | 12h 00m 11s | |
| 2 Fri | 6:24 AM | 6:51 AM | 12:50 PM | 6:48 PM | 7:15 PM | 11h 57m 35s | |
| 3 Sat | 6:25 AM | 6:52 AM | 12:50 PM | 6:47 PM | 7:14 PM | 11h 55m 00s | |
| 4 Sun | 6:26 AM | 6:53 AM | 12:49 PM | 6:45 PM | 7:12 PM | 11h 52m 25s | |
| 5 Mon | 6:27 AM | 6:54 AM | 12:49 PM | 6:44 PM | 7:11 PM | 11h 49m 50s | |
| 6 Tue | 6:28 AM | 6:55 AM | 12:49 PM | 6:42 PM | 7:09 PM | 11h 47m 15s | |
| 7 Wed | 6:29 AM | 6:56 AM | 12:48 PM | 6:40 PM | 7:07 PM | 11h 44m 40s | |
| 8 Thu | 6:30 AM | 6:57 AM | 12:48 PM | 6:39 PM | 7:06 PM | 11h 42m 06s | |
| 9 Fri | 6:31 AM | 6:58 AM | 12:48 PM | 6:37 PM | 7:04 PM | 11h 39m 32s | |
| 10 Sat | 6:32 AM | 6:59 AM | 12:48 PM | 6:36 PM | 7:03 PM | 11h 36m 59s | |
| 11 Sun | 6:33 AM | 7:00 AM | 12:47 PM | 6:34 PM | 7:01 PM | 11h 34m 26s | |
| 12 Mon | 6:34 AM | 7:01 AM | 12:47 PM | 6:33 PM | 7:00 PM | 11h 31m 53s | |
| 13 Tue | 6:35 AM | 7:02 AM | 12:47 PM | 6:31 PM | 6:58 PM | 11h 29m 21s | |
| 14 Wed | 6:36 AM | 7:03 AM | 12:47 PM | 6:30 PM | 6:57 PM | 11h 26m 50s | |
Wednesday, October 14 11h 26m 50s of daylight·−2m 31s vs. yesterday·twilight 6:36 AM – 6:57 PM Time 9:54 PM Altitude -39.8° Heading 297° WNW Light Night 9:54 PM, Night, altitude -39.8 degrees | |||||||
| 15 Thu | 6:37 AM | 7:04 AM | 12:46 PM | 6:28 PM | 6:55 PM | 11h 24m 19s | |
| 16 Fri | 6:38 AM | 7:05 AM | 12:46 PM | 6:27 PM | 6:54 PM | 11h 21m 48s | |
| 17 Sat | 6:39 AM | 7:06 AM | 12:46 PM | 6:25 PM | 6:53 PM | 11h 19m 18s | |
| 18 Sun | 6:40 AM | 7:07 AM | 12:46 PM | 6:24 PM | 6:51 PM | 11h 16m 49s | |
| 19 Mon | 6:41 AM | 7:08 AM | 12:46 PM | 6:22 PM | 6:50 PM | 11h 14m 20s | |
| 20 Tue | 6:42 AM | 7:09 AM | 12:45 PM | 6:21 PM | 6:48 PM | 11h 11m 52s | |
| 21 Wed | 6:43 AM | 7:10 AM | 12:45 PM | 6:20 PM | 6:47 PM | 11h 09m 25s | |
| 22 Thu | 6:44 AM | 7:11 AM | 12:45 PM | 6:18 PM | 6:46 PM | 11h 06m 58s | |
| 23 Fri | 6:45 AM | 7:12 AM | 12:45 PM | 6:17 PM | 6:44 PM | 11h 04m 32s | |
| 24 Sat | 6:46 AM | 7:13 AM | 12:45 PM | 6:16 PM | 6:43 PM | 11h 02m 07s | |
| 25 Sun | 6:47 AM | 7:14 AM | 12:45 PM | 6:14 PM | 6:42 PM | 10h 59m 43s | |
| 26 Mon | 6:48 AM | 7:16 AM | 12:45 PM | 6:13 PM | 6:41 PM | 10h 57m 20s | |
| 27 Tue | 6:49 AM | 7:17 AM | 12:44 PM | 6:12 PM | 6:39 PM | 10h 54m 57s | |
| 28 Wed | 6:50 AM | 7:18 AM | 12:44 PM | 6:10 PM | 6:38 PM | 10h 52m 36s | |
| 29 Thu | 6:51 AM | 7:19 AM | 12:44 PM | 6:09 PM | 6:37 PM | 10h 50m 16s | |
| 30 Fri | 6:52 AM | 7:20 AM | 12:44 PM | 6:08 PM | 6:36 PM | 10h 47m 57s | |
| 31 Sat | 6:53 AM | 7:21 AM | 12:44 PM | 6:07 PM | 6:35 PM | 10h 45m 39s | |
Photos
Sunrise and sunset photos of Boulder from Flickr.
Morning in the Mountain ForestView on Flickr
Apocalypse NowView on Flickr
Boulder SunsetView on Flickr
Goodnight MoonView on Flickr
Mirror PondView on Flickr
Ciao 2025View on Flickr
Detail: National Center for Atmospheric ResearchView on Flickr
CloudView on Flickr
Morning IdyllView on Flickr
Bloody Mary MorningView on Flickr
The curtain descends...View on Flickr
Prismatic sunsetView on Flickr
FAQ
Frequently asked questions about sunrise and sunset in Boulder, United States
- What time does the sun rise in Boulder today?
- Sunrise in Boulder today (Wednesday, October 14, 2026) is at 7:03 AM. The sun comes up in the E.
- What time does the sun set in Boulder today?
- Sunset today is at 6:30 PM, after 11h 26m of daylight.
- When does it get dark in Boulder tonight?
- Civil twilight ends at 6:57 PM. After that you need artificial light for most things outdoors. Astronomical twilight ends at 8:00 PM, which is when night starts by the standard definition.How long after sunset it gets dark
- When is the longest day in Boulder, United States?
- The longest day of 2026 in Boulder is Sunday, June 21, 2026, the summer solstice, with 15h 01m of daylight. In 2027 the summer solstice falls on June 21, 2027.More on the summer solstice
- When is the shortest day in Boulder, United States?
- The shortest day of 2026 in Boulder, Colorado is Monday, December 21, 2026, the winter solstice, with 9h 19m of daylight. In 2027 the winter solstice lands on December 21, 2027.
- How much more daylight does Boulder get in summer than in winter?
- Boulder gets 5h 41m more daylight on its longest day than on its shortest (15h 01m against 9h 19m). Averaged across the year, a day here has 12h 12m of daylight.
- When is the earliest sunrise in Boulder?
- The earliest sunrise of 2026 in Boulder is on Saturday, June 13, 2026, when the sun comes up at 5:31 AM.
- When is the latest sunset in Boulder?
- The latest sunset is on Saturday, June 27, 2026 at 8:34 PM.
- When is the earliest sunset in Boulder?
- The earliest sunset of the year is on Monday, December 7, 2026, with the sun down by 4:35 PM.Why it comes before the shortest day
- When is the latest sunrise in Boulder?
- The latest sunrise is on Saturday, October 31, 2026 at 7:29 AM.
- Does Boulder observe daylight saving time?
- Yes. Boulder uses Mountain Time: clocks go forward on March 8, 2026, then back on November 1, 2026. Sunrise and sunset times jump by an hour on those dates.
Nearby
Other places close to Boulder
Cities near Boulder
National parks & monuments nearby
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GET https://api.sunrisesunset.io/json?lat=40.01499&lng=-105.27055