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Rule Dark Skies

Dark Skies - US Southwest

Southwest, United States

Astrophotography in the Southwest. Track dark skies at Monument Valley, Bryce Canyon.

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Phoenix
Next opportunity
Pristine Dark Skies (pristine)
Big Bend
Today · 12:00–21:00 · 9h window
Medium confidence
53%
🌛Moon Altitude-4.7-7.9°
☁️Total Cloud Coverage0-5%
starry-night weather icon
Pristine Dark Skies (pristine)
Sedona
Today · 20:00–21:00
🌛Moon Altitude:0.3°
Medium
starry-night weather icon
Pristine Dark Skies (pristine)
Death Valley
Today · 20:10–22:00
🌛Moon Altitude:-3.9-7.6°
Medium
starry-night weather icon
Pristine Dark Skies (pristine)
White Sands
Tomorrow · 07:00–14:00
🌛Moon Altitude:-62.2-5.5°
Medium
starry-night weather icon
Pristine Dark Skies (pristine) at Sunrise
Sedona
Tomorrow · 07:00–08:00
🌛Moon Altitude:9.7°
Medium
starry-night weather icon
Pristine Dark Skies (pristine)
Sedona
Tomorrow · 08:00–10:00
🌛Moon Altitude:-14.2--2.1°
Medium
starry-night weather icon
Pristine Dark Skies (pristine)
Joshua Tree
Tomorrow · 08:00–23:00
🌛Moon Altitude:-63.9-8.4°
Medium
+43 more windows in the next 10 days

This forecast tracks the conditions every astrophotographer needs: clear, moonless nights with exceptional atmospheric transparency. We combine cloud cover predictions with moon phase, lunar position, and visibility data to identify your best Milky Way shooting opportunities.

The American Southwest offers some of the darkest skies in the developed world. Many of these locations hold International Dark Sky Park designations, meaning active protection of their exceptional night sky quality.

What makes the Southwest special for astrophotography:

  • Exceptional darkness - Death Valley and Big Bend rank among the darkest places in North America
  • Dry climate - Low humidity means better atmospheric transparency and seeing conditions
  • Iconic foregrounds - Arches, hoodoos, mesas, and desert landscapes create unforgettable compositions
  • Altitude advantage - Many locations sit above 5,000 feet, reducing atmospheric interference

The Milky Way core is best visible from March through October in the Northern Hemisphere. For the most dramatic shots, plan around new moon phases and arrive well before astronomical twilight ends. Summer months offer the Milky Way core high overhead, while spring and fall provide lower-angle views perfect for wide landscape compositions.

Location status

1 of 10 locations currently active

Monument Valley

Inactive

Iconic desert landscape with buttes

Oljato-Monument Valley, Utah, United States

Right now: Total Cloud Coverage too high (33%, ≤ 20.0%)

Next opportunity in ~1 day 14h

11 opportunities in next 10 days

View forecast

Bryce Canyon

Inactive

Hoodoos and amphitheaters under dark skies

Bryce, Arizona, United States

Right now: Total Cloud Coverage too high (92%, ≤ 20.0%)

Next opportunity in ~16h 58m

10 opportunities in next 10 days

View forecast

Arches

Inactive

Delicate Arch astrophotography destination

Moab, Utah, United States

Right now: Astronomical Night: Outside time window

Next opportunity in ~2 days 2h

11 opportunities in next 10 days

View forecast

Grand Canyon

Inactive

North Rim offers pristine dark skies

Grand Canyon, Arizona, United States

Right now: Total Cloud Coverage too high (36%, ≤ 20.0%)

Next opportunity in ~1 day 1h

10 opportunities in next 10 days

View forecast

Death Valley

Inactive

Darkest skies in the Lower 48 states

Furnace Creek, California, United States

Right now: Astronomical Night: Outside time window

Next opportunity in ~2h 8m

13 opportunities in next 10 days

View forecast

Joshua Tree

Inactive

Desert dark sky preserve with iconic trees

Twentynine Palms, California, United States

Right now: Total Cloud Coverage too high (100%, ≤ 20.0%)

Next opportunity in ~13h 58m

10 opportunities in next 10 days

View forecast

White Sands

Inactive

White dunes reflecting starlight

Alamogordo, New Mexico, United States

Right now: Total Cloud Coverage too high (100%, ≤ 20.0%)

Next opportunity in ~12h 58m

10 opportunities in next 10 days

View forecast

Sedona

Inactive

Red rocks and dark sky community

Sedona, Arizona, United States

Right now: Astronomical Night: Outside time window

Next opportunity in ~1h 58m

15 opportunities in next 10 days

View forecast

Capitol Reef

Inactive

Remote Utah park with exceptional darkness

Torrey, Utah, United States

Right now: Total Cloud Coverage too high (100%, ≤ 20.0%)

Next opportunity in ~2 days 14h

10 opportunities in next 10 days

View forecast

Big Bend

Active

Texas dark sky preserve on the Rio Grande

Terlingua, Texas, United States

Ends in ~2h 58m

10 opportunities in next 10 days

View forecast

What's blocking opportunities

72-hour view of conditions preventing matches across 10 locations

Top 5 blocking conditions across 10 of 10 locations
Some blocked
Most blocked
3 Tue
4 Wed
5 Thu
6 Fri
7 Sat
24
06
12
18
24
06
12
18
24
06
12
18
24
06
12
Moon Illumination (≤ 35.0%)
100% blocked
Total Cloud Coverage (≤ 20.0%)
43% blocked
Moon Altitude (≤ 10.0°)
42% blocked
Precipitation Chance (≤ 10.0%)
16% blocked
Astronomical Night (Any)
2% blocked
How to read: Each row shows when a condition blocks opportunities. Stronger red means more locations are affected. These are the top 5 conditions preventing matches across the 72-hour forecast.

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