Rainbow Bridge National Monument is a dark sky place in San Juan County, Utah. It lies in or next to Rainbow Bridge National Monument, so park hours, fees and rules apply. The nearest town is Page, about 47 km (29 mi) away (Rainbow Bridge National Monument lies ENE of town). It is certified as an International Dark Sky Sanctuary by DarkSky International.
Rainbow Bridge is a natural arch in southern Utah, United States. With a span of 275 feet (84 m), as reported in 1974 by the Bureau of Reclamation, and height of 290 feet (88 m), it is one of the largest natural arches in the world. At the top it is 42 feet (13 m) thick and 33 feet (10 m) wide. The bridge, which is of cultural importance to a number of area Native American tribes, has been designated a Traditional Cultural Property by the National Park Service. Rainbow Bridge National Monument was protected in 1910, and it is administered by Glen Canyon National Recreation Area.From the Wikipedia article “Rainbow Bridge National Monument”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Rainbow Bridge National Monument the sunrise point swings a long way through the year: about 60° (ENE) at the June solstice and 119° (ESE) in late December. Sunset moves from 301° (WNW) in June to 241° (WSW) in December, and the midday sun climbs to 76° in summer but only 29° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:28 AM | 90° E | 7:36 PM | 271° W | 53° | 12h 08m |
| June solstice (Jun 21) | 6:05 AM | 60° ENE | 8:48 PM | 301° WNW | 76° | 14h 43m |
| September equinox (Sep 22) | 7:12 AM | 89° E | 7:22 PM | 271° W | 53° | 12h 10m |
| December solstice (Dec 21) | 7:34 AM | 119° ESE | 5:11 PM | 241° WSW | 29° | 9h 37m |
Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.
Golden hour & blue hour by month
Certified dark sky places offer protected night skies — plan around the new moon and the Milky Way core season.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 7:09 AM | 7:37 AM | 8:16 AM | 4:52 PM | 5:31 PM | 5:59 PM | 9h 54m |
| February | 6:47 AM | 7:14 AM | 7:50 AM | 5:28 PM | 6:04 PM | 6:31 PM | 10h 51m |
| March | 7:10 AM | 7:36 AM | 8:10 AM | 6:57 PM | 7:32 PM | 7:57 PM | 11h 56m |
| April | 6:23 AM | 6:50 AM | 7:25 AM | 7:24 PM | 7:59 PM | 8:26 PM | 13h 09m |
| May | 5:47 AM | 6:17 AM | 6:53 AM | 7:49 PM | 8:26 PM | 8:55 PM | 14h 09m |
| June | 5:33 AM | 6:04 AM | 6:43 AM | 8:07 PM | 8:46 PM | 9:17 PM | 14h 42m |
| July | 5:46 AM | 6:16 AM | 6:54 AM | 8:06 PM | 8:44 PM | 9:14 PM | 14h 28m |
| August | 6:14 AM | 6:41 AM | 7:17 AM | 7:41 PM | 8:17 PM | 8:45 PM | 13h 36m |
| September | 6:41 AM | 7:07 AM | 7:41 AM | 6:59 PM | 7:33 PM | 7:59 PM | 12h 26m |
| October | 7:06 AM | 7:32 AM | 8:07 AM | 6:13 PM | 6:48 PM | 7:15 PM | 11h 16m |
| November | 6:36 AM | 7:03 AM | 7:42 AM | 4:37 PM | 5:15 PM | 5:43 PM | 10h 12m |
| December | 7:02 AM | 7:31 AM | 8:11 AM | 4:28 PM | 5:09 PM | 5:38 PM | 9h 38m |
Local time (America/Denver), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.
Milky Way & night sky
From Rainbow Bridge National Monument, the Milky Way core is visible in a dark sky from March through October. June gives the longest window (about 5.5 hours on a moonless night), and the core peaks around 24° above the southern horizon. Our light-pollution model puts the sky at about Bortle 1 (excellent dark-sky site), which is excellent for astrophotography.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -1° | — |
| February | 5:22 AM – 5:42 AM | 0.3 | 14° | SE → SE |
| March | 4:28 AM – 5:58 AM | 1.5 | 20° | SE → SSE |
| April | 2:21 AM – 5:11 AM | 2.8 | 24° | SE → S |
| May | 12:29 AM – 4:29 AM | 4.0 | 24° | SE → SSW |
| June | 10:38 PM – 4:08 AM | 5.5 | 24° | SE → SW |
| July | 10:32 PM – 2:42 AM | 4.2 | 24° | SSE → SW |
| August | 9:53 PM – 12:43 AM | 2.8 | 24° | S → SW |
| September | 9:01 PM – 10:41 PM | 1.7 | 21° | SSW → SW |
| October | 8:15 PM – 8:45 PM | 0.5 | 14° | SW → SW |
| November | Below 10° in darkness | — | 1° | — |
| December | Below 10° in darkness | — | -19° | — |
Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.
Estimated sky darkness: 1 Bortle 1 — Excellent dark-sky site. The Milky Way casts faint shadows; zodiacal light and airglow are obvious. Modeled zenith brightness ≈ 21.94 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show June as the clearest month (about 30% average cloud cover) and December as the cloudiest (51%). July is the warmest month and January the coldest, which matters for gear, snow access and how long batteries last at night.
Average cloud cover (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 66 | 69 | 81 | 89 | 101 | 105 | 108 | 105 | 102 | 92 | 78 | 64 |
| Low °F | 3 | 1 | 18 | 22 | 28 | 40 | 54 | 53 | 35 | 16 | 16 | 9 |
| Precip. (in) | 0.7 | 0.7 | 0.6 | 0.5 | 0.5 | 0.2 | 0.8 | 1.0 | 1.0 | 1.0 | 0.6 | 0.7 |
Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.
Photography tips for this dark sky place
- Many parks host star parties and night programs during summer.
- Use the Milky Way table to find months and hours when the core is above the horizon.
- Use red light only and keep it pointed down to protect others' night vision.
- Set focus on a bright star with live-view magnification, then tape the focus ring.
- Shoot RAW to keep the most latitude for high-contrast sunrise and sunset scenes.
Season: Milky Way core season runs roughly March to October; winter offers long nights and bright winter constellations.
Suggested gear: Fast wide lens (f/1.4–f/2.8), Sturdy tripod, Red headlamp, Intervalometer. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Permits, drones & access
National Park Service rules. Under federal law (54 U.S.C. 100905), still photography in National Park Service areas needs a permit only when it (1) takes place where members of the public are not allowed, (2) uses models, sets or props that are not part of the location's natural or cultural resources or administrative facilities, or (3) would cause the park to incur additional administrative costs to monitor the activity. Ordinary visitor and most landscape photography needs no permit. Commercial filming rules are separate and have changed in recent years — confirm current requirements with the park before a paid shoot.
Drones: Launching, landing or operating unmanned aircraft (drones) is prohibited in National Park Service units under a 2014 Superintendent's closure (36 CFR 1.5), except where a park has issued specific written approval. Flying from outside the boundary over park land can also violate park rules and disturb wildlife.
Nearby photo spots
Other locations within 40 km of Rainbow Bridge National Monument, closest first.
Natural Arch
Natural ArchNatural ArchNatural ArchNatural Arch
Mountain PeakNatural ArchNatural Arch
Rock FormationFAQ
When is the best time to photograph Rainbow Bridge National Monument?
What time is golden hour at Rainbow Bridge National Monument?
Where does the sun rise and set at Rainbow Bridge National Monument?
Can you see the Milky Way from Rainbow Bridge National Monument?
Do you need a permit to photograph at Rainbow Bridge National Monument?
How far is Rainbow Bridge National Monument from Page?
Sources
Location data: DarkSky International (via Wikidata), Wikipedia. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.