Rule
Dark Skies
Ouray - Dark Skies - Rocky Mountains
Ouray, Colorado, United States
Moonless nights with crystal-clear skies for deep-sky photography
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in America/Denver
Next opportunity
Pristine Dark Skies (pristine)
Ouray
Fri, Jul 10 · 24:00–04:04 · 4h window
Medium confidence
45%
🌛Moon Altitude-16.4-23.4°
☁️Total Cloud Coverage0-16%
Pristine Dark Skies (pristine)
Ouray
Fri, Jul 10 · 22:27–04:00
🌛Moon Altitude:-26.1-4°
Medium
Pristine Dark Skies (pristine)
Ouray
Sun, Jul 12 · 02:00–04:06
🌛Moon Altitude:-12.7-4.1°
Low
Pristine Dark Skies (pristine)
Ouray
Mon, Jul 13 · 24:00–04:00
🌛Moon Altitude:-24.3--13.9°
Medium
Pristine Dark Skies (pristine)
Ouray
Mon, Jul 13 · 23:00–04:00
🌛Moon Altitude:-26.7--19.9°
Medium
Pristine Dark Skies (pristine)
Ouray
Wed, Jul 15 · 03:00–04:00
🌛Moon Altitude:-30.3°
Medium
Create your own Dark Skies alerts
Get notified when these conditions match at your own locations.
72-hour requirements breakdown
What passed or failed, hour by hourOR logic: one branch per group is enough
Meets requirement
Misses requirement
Time America/Denver | Astronomical Night Any | Total Cloud Coverage ≤ 20.0% | Visibility ≥ 12000.0m | Precipitation Chance ≤ 10.0% | Moon Illumination OR1·B1≤ 35.0% | Moon Altitude OR1·B2≤ 10.0° |
|---|---|---|---|---|---|---|
| Tue, Jul 7 | ||||||
| 23:00 | ✓ | 64% | 23889m | 22% | 43% | -18° |
| Wed, Jul 8 | ||||||
| 24:00 | ✓ | 91% | 13909m | 22% | 43% | -7.6° |
| 01:00 | ✓ | 100% | 21468m | 15% | 43% | 3.4° |
| 02:00 | ✓ | 11% | 24135m | 7.4% | 43% | 15° |
| 03:00 | ✓ | 91% | 24134m | 0% | 43% | 26° |
| 04:00 | ✓ | 71% | 23152m | 0% | 43% | 38° |
| 05:00 | ✕ | 87% | 24134m | 0% | 43% | 49° |
| 06:00 | ✕ | 56% | 24134m | 0% | 43% | 58° |
| 07:00 | ✕ | 57% | 24134m | 0% | 43% | 65° |
| 08:00 | ✕ | 5% | 24135m | 0% | 43% | 65° |
| 09:00 | ✕ | 4.7% | 24135m | 0% | 43% | 60° |
| 10:00 | ✕ | 7.7% | 24135m | 0% | 43% | 51° |
| 11:00 | ✕ | 41% | 24135m | 0% | 43% | 41° |
| 12:00 | ✕ | 75% | 24134m | 0% | 43% | 29° |
| 13:00 | ✕ | 100% | 24134m | 0% | 43% | 18° |
| 14:00 | ✕ | 99% | 24134m | 0% | 43% | 7.1° |
| 15:00 | ✕ | 72% | 24135m | 0% | 43% | -3.6° |
| 16:00 | ✕ | 69% | 24134m | 0% | 43% | -13° |
| 17:00 | ✕ | 28% | 24134m | 0% | 43% | -22° |
| 18:00 | ✕ | 94% | 24135m | 0% | 32% | -29° |
| 19:00 | ✕ | 44% | 24135m | 7.4% | 32% | -34° |
| 20:00 | ✕ | 4.5% | 24135m | 15% | 32% | -35° |
| 21:00 | ✕ | 2% | 24134m | 22% | 32% | -33° |
| 22:00 | ✓ | 4.9% | 24134m | 28% | 32% | -28° |
| 23:00 | ✓ | 32% | 24134m | 33% | 32% | -21° |
| Thu, Jul 9 | ||||||
| 24:00 | ✓ | 66% | 24135m | 39% | 32% | -12° |
| 01:00 | ✓ | 67% | 24135m | 26% | 32% | -2.1° |
| 02:00 | ✓ | 98% | 24134m | 13% | 32% | 8.7° |
| 03:00 | ✓ | 28% | 24135m | 0% | 32% | 20° |
| 04:00 | ✓ | 45% | 24134m | 0% | 32% | 31° |
| 05:00 | ✕ | 4.3% | 24135m | 0% | 32% | 43° |
| 06:00 | ✕ | 0% | 24135m | 0% | 32% | 54° |
| 07:00 | ✕ | 1.7% | 24134m | 0% | 32% | 64° |
| 08:00 | ✕ | 22% | 24135m | 0% | 32% | 71° |
| 09:00 | ✕ | 24% | 24134m | 0% | 32% | 70° |
| 10:00 | ✕ | 5% | 24134m | 0% | 32% | 63° |
| 11:00 | ✕ | 5.5% | 24135m | 0% | 32% | 53° |
| 12:00 | ✕ | 60% | 24135m | 0% | 32% | 42° |
| 13:00 | ✕ | 14% | 24134m | 0% | 32% | 31° |
| 14:00 | ✕ | 14% | 24135m | 0% | 32% | 20° |
| 15:00 | ✕ | 9.5% | 24135m | 0% | 32% | 9.1° |
| 16:00 | ✕ | 38% | 24135m | 17% | 32% | -1.2° |
| 17:00 | ✕ | 98% | 24135m | 33% | 32% | -11° |
| 18:00 | ✕ | 3.3% | 24135m | 50% | 22% | -19° |
| 19:00 | ✕ | 0% | 24135m | 33% | 22% | -25° |
| 20:00 | ✕ | 0.4% | 24135m | 17% | 22% | -29° |
| 21:00 | ✕ | 23% | 24134m | 0% | 22% | -30° |
| 22:00 | ✓ | 28% | 24135m | 0% | 22% | -28° |
| 23:00 | ✓ | 26% | 24134m | 0% | 22% | -23° |
| Fri, Jul 10 | ||||||
| 24:00 | ✓ | 16% | 24135m | 0% | 22% | -16° |
| 01:00 | ✓ | 4% | 24134m | 0% | 22% | -7.8° |
| 02:00 | ✓ | 0% | 24134m | 0% | 22% | 1.9° |
| 03:00 | ✓ | 1.9% | 24135m | 0% | 22% | 12° |
| 04:00 | ✓ | 0% | 24134m | 0% | 22% | 23° |
| 05:00 | ✕ | 0% | 24134m | 0% | 22% | 35° |
| 06:00 | ✕ | 0% | 24134m | 0% | 22% | 46° |
| 07:00 | ✕ | 5.9% | 24135m | 0% | 22% | 57° |
| 08:00 | ✕ | 5% | 24134m | 0% | 22% | 68° |
| 09:00 | ✕ | 4.9% | 24134m | 0% | 22% | 75° |
| 10:00 | ✕ | 38% | 24135m | 0% | 22% | 74° |
| 11:00 | ✕ | 93% | 24135m | 0% | 22% | 66° |
| 12:00 | ✕ | 98% | 24135m | 0% | 22% | 56° |
| 13:00 | ✕ | 66% | 24135m | 0% | 22% | 44° |
| 14:00 | ✕ | 34% | 24135m | 0% | 22% | 33° |
| 15:00 | ✕ | 2.8% | 24135m | 0% | 22% | 22° |
| 16:00 | ✕ | 1.9% | 24135m | 0% | 22% | 11° |
| 17:00 | ✕ | 0.93% | 24135m | 0% | 22% | 1.5° |
| 18:00 | ✕ | 0% | 24135m | 0% | 13% | -7.6° |
| 19:00 | ✕ | 0% | 24135m | 0% | 13% | -15° |
| 20:00 | ✕ | 0% | 24135m | 0% | 13% | -21° |
| 21:00 | ✕ | 0% | 24135m | 0% | 13% | -25° |
| 22:00 | ✓ | 0% | 24135m | 0% | 13% | -26° |
| 23:00 | ✓ | 0% | 24135m | 0% | 13% | -24° |
| Sat, Jul 11 | ||||||
| 24:00 | ✓ | 0% | 24135m | 0% | 13% | -20° |
| 01:00 | ✓ | 0% | 24135m | 0% | 13% | -13° |
| 02:00 | ✓ | 0% | 24135m | 0% | 13% | -5.3° |
| 03:00 | ✓ | 0% | 24135m | 0% | 13% | 4° |
| 04:00 | ✓ | 30% | 24135m | 0% | 13% | 14° |
| 05:00 | ✕ | 61% | 24135m | 0% | 13% | 25° |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity). For OR groups, only one branch is required, so some OR-branch predicates can be ✕ even in a matching hour.
Get Notified of Opportunities
Create your own custom alerts for this location and more.
Create Free Account