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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.

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.

Best bet right now
Monument Valley
Oljato-Monument Valley, Utah, United States
Medium confidence
Window ends in ~14h 14m

Location status

6 of 10 locations currently active

Monument Valley

Active

Iconic desert landscape with buttes

Oljato-Monument Valley, Utah, United States

Ends in ~14h 14m

13 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 (100%, ≤ 20.0%)

Next opportunity in ~7h 14m

20 opportunities in next 10 days

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Arches

Active

Delicate Arch astrophotography destination

Moab, Utah, United States

Ends in ~14h 14m

16 opportunities in next 10 days

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Grand Canyon

Active

North Rim offers pristine dark skies

Grand Canyon, Arizona, United States

Ends in ~2h 14m

10 opportunities in next 10 days

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Death Valley

Active

Darkest skies in the Lower 48 states

Furnace Creek, California, United States

Ends in ~14h 14m

15 opportunities in next 10 days

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Joshua Tree

Inactive

Desert dark sky preserve with iconic trees

Twentynine Palms, California, United States

Right now: Total Cloud Coverage too high (93%, ≤ 20.0%)

Next opportunity in ~3h 14m

14 opportunities in next 10 days

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White Sands

Inactive

White dunes reflecting starlight

Alamogordo, New Mexico, United States

Right now: Total Cloud Coverage too high (88%, ≤ 20.0%)

Next opportunity in ~22h 14m

20 opportunities in next 10 days

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Sedona

Active

Red rocks and dark sky community

Sedona, Arizona, United States

Ends in ~3h 14m

8 opportunities in next 10 days

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Capitol Reef

Active

Remote Utah park with exceptional darkness

Torrey, Utah, United States

Ends in ~14h 14m

10 opportunities in next 10 days

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Big Bend

Inactive

Texas dark sky preserve on the Rio Grande

Terlingua, Texas, United States

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

Next opportunity in ~3 days 8h

30 opportunities in next 10 days

View forecast

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Phoenix
Next opportunity
Pristine Dark Skies (pristine)
Monument Valley
Today · 10:00–02:00 · 16h window
Medium confidence
63%
☁️Total Cloud Coverage0%
🌕Moon Illumination59.2-68.4%
starry-night weather icon
Pristine Dark Skies (pristine)
Arches
Today · 10:00–02:00
☁️Total Cloud Coverage:0-0.7%
Medium
starry-night weather icon
Pristine Dark Skies (pristine)
Grand Canyon
Today · 10:00–14:00
☁️Total Cloud Coverage:0.2-4.7%
Medium
starry-night weather icon
Pristine Dark Skies (pristine)
Capitol Reef
Today · 10:00–02:00
☁️Total Cloud Coverage:0-4.7%
Medium
starry-night weather icon
Pristine Dark Skies (pristine)
Sedona
Today · 10:00–15:00
☁️Total Cloud Coverage:0-4%
Medium
starry-night weather icon
Pristine Dark Skies (pristine)
Death Valley
Today · 10:00–02:00
☁️Total Cloud Coverage:0-2%
Medium
starry-night weather icon
Dark Skies
Grand Canyon
Today · 14:00–17:00
☁️Total Cloud Coverage:5%
Medium
+43 more windows in the next 10 days

What's blocking opportunities

72-hour view of conditions preventing matches across 10 locations

Top 4 blocking conditions across 10 of 10 locations
Some blocked
Most blocked
7 Sat
8 Sun
9 Mon
10 Tue
12
18
24
06
12
18
24
06
12
18
24
06
Moon Illumination (≤ 35.0%)
100% blocked
Total Cloud Coverage (≤ 20.0%)
45% blocked
Moon Altitude (≤ 10.0°)
33% blocked
Precipitation Chance (≤ 10.0%)
9% blocked
How to read: Each row shows when a condition blocks opportunities. Stronger red means more locations are affected. These are the top 4 conditions preventing matches across the 72-hour forecast.

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