Rule
Dark Skies
Telluride - Dark Skies - Rocky Mountains
Telluride, 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)
Telluride
Today · 21:12–04:00 · 7h window
Medium confidence
54%
🌛Moon Altitude-58.1-5.7°
☁️Total Cloud Coverage5-12.4%
Pristine Dark Skies (pristine)
Telluride
Fri, Apr 17 · 21:23–01:00
🌛Moon Altitude:-28.3--4.2°
Medium
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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, Apr 7 | ||||||
| 19:00 | ✕ | 78% | 19629m | 0% | 66% | -71° |
| 20:00 | ✕ | 90% | 24134m | 0% | 66% | -60° |
| 21:00 | ✓ | 95% | 24135m | 0% | 66% | -49° |
| 22:00 | ✓ | 4.7% | 24134m | 0% | 66% | -37° |
| 23:00 | ✓ | 5% | 24134m | 0% | 66% | -26° |
| Wed, Apr 8 | ||||||
| 24:00 | ✓ | 5% | 24135m | 0% | 66% | -15° |
| 01:00 | ✓ | 0.4% | 24135m | 0% | 66% | -5.3° |
| 02:00 | ✓ | 0% | 24134m | 0% | 66% | 3.9° |
| 03:00 | ✓ | 0% | 24135m | 0% | 66% | 12° |
| 04:00 | ✓ | 0.8% | 24134m | 0% | 66% | 18° |
| 05:00 | ✓ | 0.1% | 24135m | 0% | 66% | 22° |
| 06:00 | ✕ | 0% | 24134m | 0% | 66% | 24° |
| 07:00 | ✕ | 0% | 24134m | 0% | 66% | 23° |
| 08:00 | ✕ | 0% | 24134m | 0% | 66% | 19° |
| 09:00 | ✕ | 0.1% | 24135m | 0% | 66% | 13° |
| 10:00 | ✕ | 3.3% | 24135m | 0% | 66% | 5.1° |
| 11:00 | ✕ | 15% | 24134m | 0% | 66% | -3.9° |
| 12:00 | ✕ | 41% | 24135m | 0% | 66% | -14° |
| 13:00 | ✕ | 40% | 24135m | 0% | 66% | -24° |
| 14:00 | ✕ | 97% | 24134m | 0% | 66% | -36° |
| 15:00 | ✕ | 100% | 24134m | 0% | 66% | -47° |
| 16:00 | ✕ | 100% | 24135m | 0% | 66% | -58° |
| 17:00 | ✕ | 99% | 24135m | 0% | 66% | -69° |
| 18:00 | ✕ | 69% | 24135m | 0% | 57% | -78° |
| 19:00 | ✕ | 78% | 24134m | 0% | 57% | -78° |
| 20:00 | ✕ | 92% | 24135m | 0% | 57% | -69° |
| 21:00 | ✓ | 12% | 24135m | 0% | 57% | -58° |
| 22:00 | ✓ | 5.1% | 24135m | 0% | 57% | -47° |
| 23:00 | ✓ | 8.1% | 24134m | 0% | 57% | -35° |
| Thu, Apr 9 | ||||||
| 24:00 | ✓ | 5.9% | 24134m | 0% | 57% | -24° |
| 01:00 | ✓ | 5.6% | 24134m | 0% | 57% | -13° |
| 02:00 | ✓ | 5% | 24135m | 0% | 57% | -3.4° |
| 03:00 | ✓ | 5.6% | 24134m | 0% | 57% | 5.7° |
| 04:00 | ✓ | 49% | 24135m | 0% | 57% | 14° |
| 05:00 | ✓ | 95% | 24135m | 0% | 57% | 20° |
| 06:00 | ✕ | 64% | 24135m | 0% | 57% | 24° |
| 07:00 | ✕ | 5% | 24135m | 13% | 57% | 25° |
| 08:00 | ✕ | 5% | 24134m | 26% | 57% | 23° |
| 09:00 | ✕ | 5% | 24135m | 39% | 57% | 19° |
| 10:00 | ✕ | 98% | 24134m | 33% | 57% | 13° |
| 11:00 | ✕ | 100% | 24134m | 28% | 57% | 4.9° |
| 12:00 | ✕ | 100% | 24135m | 22% | 57% | -4.4° |
| 13:00 | ✕ | 100% | 24135m | 15% | 57% | -15° |
| 14:00 | ✕ | 100% | 24134m | 7.4% | 57% | -25° |
| 15:00 | ✕ | 100% | 24134m | 0% | 57% | -36° |
| 16:00 | ✕ | 100% | 24135m | 0% | 57% | -48° |
| 17:00 | ✕ | 98% | 24134m | 0% | 57% | -59° |
| 18:00 | ✕ | 21% | 24135m | 0% | 47% | -70° |
| 19:00 | ✕ | 77% | 24134m | 0% | 47% | -77° |
| 20:00 | ✕ | 100% | 24134m | 0% | 47% | -76° |
| 21:00 | ✓ | 100% | 24135m | 0% | 47% | -66° |
| 22:00 | ✓ | 100% | 24134m | 0% | 47% | -55° |
| 23:00 | ✓ | 100% | 24134m | 0% | 47% | -44° |
| Fri, Apr 10 | ||||||
| 24:00 | ✓ | 100% | 24135m | 0% | 47% | -33° |
| 01:00 | ✓ | 95% | 24134m | 0% | 47% | -21° |
| 02:00 | ✓ | 99% | 24134m | 0% | 47% | -11° |
| 03:00 | ✓ | 100% | 24135m | 0% | 47% | -0.41° |
| 04:00 | ✓ | 100% | 24135m | 0% | 47% | 8.8° |
| 05:00 | ✓ | 100% | 24134m | 0% | 47% | 17° |
| 06:00 | ✕ | 100% | 24134m | 0% | 47% | 23° |
| 07:00 | ✕ | 100% | 24134m | 8.7% | 47% | 26° |
| 08:00 | ✕ | 100% | 24134m | 17% | 47% | 27° |
| 09:00 | ✕ | 100% | 24134m | 26% | 47% | 25° |
| 10:00 | ✕ | 100% | 24134m | 26% | 47% | 21° |
| 11:00 | ✕ | 100% | 24135m | 27% | 47% | 14° |
| 12:00 | ✕ | 100% | 24135m | 27% | 47% | 5.4° |
| 13:00 | ✕ | 100% | 24135m | 40% | 47% | -4.3° |
| 14:00 | ✕ | 100% | 24134m | 54% | 47% | -15° |
| 15:00 | ✕ | 100% | 24135m | 67% | 47% | -26° |
| 16:00 | ✕ | 100% | 24134m | 69% | 47% | -37° |
| 17:00 | ✕ | 100% | 24135m | 71% | 47% | -48° |
| 18:00 | ✕ | 100% | 24134m | 73% | 38% | -59° |
| 19:00 | ✕ | 100% | 24134m | 58% | 38% | -69° |
| 20:00 | ✕ | 100% | 24134m | 43% | 38% | -75° |
| 21:00 | ✓ | 100% | 24135m | 28% | 38% | -72° |
| 22:00 | ✓ | 100% | 24135m | 33% | 38% | -63° |
| 23:00 | ✓ | 100% | 24135m | 37% | 38% | -52° |
| Sat, Apr 11 | ||||||
| 24:00 | ✓ | 100% | 24135m | 42% | 38% | -40° |
| 01:00 | ✓ | 100% | 24135m | 37% | 38% | -29° |
| 02:00 | ✓ | 100% | 24135m | 33% | 38% | -17° |
| 03:00 | ✓ | 100% | 24135m | 28% | 38% | -6.5° |
| 04:00 | ✓ | 100% | 17806m | 50% | 38% | 3.8° |
| 05:00 | ✓ | 100% | 11476m | 72% | 38% | 13° |
| 06:00 | ✕ | 100% | 5147m | 94% | 38% | 21° |
| 07:00 | ✕ | 99% | 3455m | 96% | 38% | 27° |
| 08:00 | ✕ | 99% | 1762m | 97% | 38% | 31° |
| 09:00 | ✕ | 98% | 70m | 99% | 38% | 31° |
| 10:00 | ✕ | 99% | 1337m | 99% | 38% | 28° |
| 11:00 | ✕ | 99% | 2604m | 100% | 38% | 23° |
| 12:00 | ✕ | 100% | 3872m | 100% | 38% | 15° |
| 13:00 | ✕ | 89% | 10626m | 92% | 38% | 6.3° |
| 14:00 | ✕ | 79% | 17381m | 83% | 38% | -3.7° |
| 15:00 | ✕ | 68% | 24135m | 75% | 38% | -15° |
| 16:00 | ✕ | 77% | 24017m | 68% | 38% | -26° |
| 17:00 | ✕ | 86% | 23898m | 61% | 38% | -37° |
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.
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