Located in Pima County, Arizona, Romero Canyon is a canyon. It sits roughly 8.7 km (5.4 mi) ENE of Oro Valley.
Not to be confused with the Romero Canyon in the Los Padres National Forest of California. Romero Canyon is located in the Santa Catalina Mountains and part of the Coronado National Forest. A stream flows through the bottom that has become a popular tourist destination. The Romero Canyon Trail runs through the canyon.From the Wikipedia article “Romero Canyon”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Romero Canyon the sunrise point swings a long way through the year: about 61° (ENE) at the June solstice and 118° (ESE) in late December. Sunset moves from 299° (WNW) in June to 243° (WSW) in December, and the midday sun climbs to 81° in summer but only 34° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 6:28 AM | 90° E | 6:36 PM | 271° W | 57° | 12h 07m |
| June solstice (Jun 21) | 5:18 AM | 61° ENE | 7:35 PM | 299° WNW | 81° | 14h 17m |
| September equinox (Sep 22) | 6:13 AM | 89° E | 6:22 PM | 271° W | 58° | 12h 09m |
| December solstice (Dec 21) | 7:22 AM | 118° ESE | 5:23 PM | 243° WSW | 34° | 10h 01m |
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
Canyons need light from above: rims glow at sunrise and sunset, while deep or narrow sections are brightest near midday when reflected light bounces off the walls.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:59 AM | 7:26 AM | 8:02 AM | 5:05 PM | 5:41 PM | 6:08 PM | 10h 15m |
| February | 6:42 AM | 7:07 AM | 7:41 AM | 5:36 PM | 6:10 PM | 6:35 PM | 11h 03m |
| March | 6:10 AM | 6:35 AM | 7:07 AM | 6:00 PM | 6:32 PM | 6:56 PM | 11h 57m |
| April | 5:30 AM | 5:55 AM | 6:28 AM | 6:21 PM | 6:53 PM | 7:19 PM | 12h 59m |
| May | 4:59 AM | 5:26 AM | 6:01 AM | 6:41 PM | 7:15 PM | 7:42 PM | 13h 49m |
| June | 4:48 AM | 5:17 AM | 5:53 AM | 6:57 PM | 7:33 PM | 8:01 PM | 14h 16m |
| July | 5:00 AM | 5:28 AM | 6:03 AM | 6:57 PM | 7:32 PM | 8:00 PM | 14h 05m |
| August | 5:22 AM | 5:48 AM | 6:22 AM | 6:36 PM | 7:10 PM | 7:35 PM | 13h 21m |
| September | 5:44 AM | 6:08 AM | 6:41 AM | 5:59 PM | 6:31 PM | 6:56 PM | 12h 23m |
| October | 6:03 AM | 6:28 AM | 7:01 AM | 5:19 PM | 5:52 PM | 6:17 PM | 11h 24m |
| November | 6:28 AM | 6:54 AM | 7:29 AM | 4:49 PM | 5:24 PM | 5:50 PM | 10h 30m |
| December | 6:51 AM | 7:19 AM | 7:56 AM | 4:43 PM | 5:21 PM | 5:48 PM | 10h 02m |
Local time (America/Phoenix), 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 Romero Canyon, the Milky Way core is visible in a dark sky from February through October. June gives the longest window (about 6.3 hours on a moonless night), and the core peaks around 29° above the southern horizon. Our light-pollution model puts the sky at about Bortle 5 (suburban sky), so expect visible sky glow; drive away from towns for better results.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | 1° | — |
| February | 4:53 AM – 5:43 AM | 0.8 | 18° | SE → SE |
| March | 3:04 AM – 5:04 AM | 2.0 | 25° | SE → SSE |
| April | 1:00 AM – 4:20 AM | 3.3 | 28° | SE → S |
| May | 11:00 PM – 3:50 AM | 4.8 | 29° | SE → SSW |
| June | 9:15 PM – 3:35 AM | 6.3 | 29° | SE → SW |
| July | 9:11 PM – 2:01 AM | 4.8 | 29° | SSE → SW |
| August | 8:39 PM – 11:59 PM | 3.3 | 29° | S → SW |
| September | 7:54 PM – 10:04 PM | 2.2 | 25° | SSW → SW |
| October | 7:14 PM – 8:04 PM | 0.8 | 18° | SW → SW |
| November | Below 10° in darkness | — | 3° | — |
| December | Below 10° in darkness | — | -18° | — |
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: 5 Bortle 5 — Suburban sky. The Milky Way is weak near the horizon and washed out overhead; long exposures pick up a sky glow. Modeled zenith brightness ≈ 19.91 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show June as the clearest month (about 21% average cloud cover) and July as the cloudiest (56%). July is the warmest month and December 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 | 76 | 83 | 90 | 97 | 106 | 111 | 108 | 107 | 104 | 98 | 89 | 77 |
| Low °F | 18 | 15 | 22 | 32 | 38 | 49 | 64 | 61 | 49 | 30 | 20 | 21 |
| Precip. (in) | 1.1 | 1.1 | 0.6 | 0.4 | 0.1 | 0.2 | 2.5 | 2.2 | 1.3 | 0.6 | 0.7 | 1.1 |
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 canyon
- Dust and sand are hard on gear; change lenses in a bag or with your back to the wind.
- A long lens on a tripod handles the low light inside canyons better than raising ISO.
- From the rim, sunrise and sunset side-light reveals layers; a telephoto picks out buttes and shadows.
- In narrow canyons, reflected light creates orange and purple glows; avoid including bright sky in the frame.
- Check flash flood forecasts before entering slot or narrow canyons — rain miles away can flood them.
- Bring a spare battery — cold weather and long exposures drain them fast.
Season: Spring and autumn are comfortable; summer monsoon storms bring dramatic skies but higher flood risk in the Southwest.
Suggested gear: Tripod, Wide and telephoto lenses, Lens blower, Weather radio or app. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Romero Canyon, closest first.
State Park
Natural Arch
Fire Lookout
Mountain Peak
Wilderness Area
Botanical Garden
Canyon
Scenic Viewpoint
Mountain PeakCampgrounds nearby (Recreation.gov)
- Sabino Canyon Recreation Area Cactus Ramada 214.3 km (8.9 mi) · reservable
- Sabino Canyon Recreation Area Cactus Ramada 114.3 km (8.9 mi) · reservable
- Whitetail Campground14.8 km (9.2 mi) · reservable
- Showers Point Group Site15.9 km (9.9 mi) · reservable
- Palisades Ranger Residence Cabin16.4 km (10.2 mi) · reservable
FAQ
When is the best time to photograph Romero Canyon?
What time is golden hour at Romero Canyon?
Where does the sun rise and set at Romero Canyon?
Can you see the Milky Way from Romero Canyon?
Do you need a permit to photograph at Romero Canyon?
How far is Romero Canyon from Oro Valley?
Sources
Location data: 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.