Rule
Dark Skies
Breckenridge - Dark Skies - Rocky Mountains
Silverthorne, 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)
Breckenridge
Tomorrow · 23:00–03:47 · 5h window
Medium confidence
42%
🌛Moon Altitude-21.2-14.1°
☁️Total Cloud Coverage2.2-5%
Pristine Dark Skies (pristine)
Breckenridge
Fri, Jul 10 · 22:31–03:48
🌛Moon Altitude:-24.5-5.9°
Medium
Pristine Dark Skies (pristine)
Breckenridge
Sat, Jul 11 · 22:30–03:49
🌛Moon Altitude:-22.5--2.9°
Medium
Pristine Dark Skies (pristine)
Breckenridge
Sun, Jul 12 · 22:29–03:50
🌛Moon Altitude:-22.7--11.9°
Medium
Pristine Dark Skies (pristine)
Breckenridge
Mon, Jul 13 · 22:28–03:52
🌛Moon Altitude:-25.2--12.7°
Medium
Pristine Dark Skies (pristine)
Breckenridge
Tue, Jul 14 · 22:27–03:53
🌛Moon Altitude:-29.4--7.5°
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 | ||||||
| 22:00 | ✓ | 61% | 24135m | 22% | 43% | -25° |
| 23:00 | ✓ | 85% | 24134m | 22% | 43% | -16° |
| Wed, Jul 8 | ||||||
| 24:00 | ✓ | 16% | 24135m | 22% | 43% | -5.9° |
| 01:00 | ✓ | 21% | 24134m | 0% | 43% | 5° |
| 02:00 | ✓ | 23% | 24135m | 0% | 43% | 16° |
| 03:00 | ✓ | 5% | 24134m | 0% | 43% | 28° |
| 04:00 | ✕ | 5% | 24134m | 0% | 43% | 39° |
| 05:00 | ✕ | 6.3% | 24134m | 0% | 43% | 49° |
| 06:00 | ✕ | 2.3% | 24134m | 0% | 43% | 58° |
| 07:00 | ✕ | 0.1% | 24134m | 0% | 43% | 64° |
| 08:00 | ✕ | 0% | 24135m | 0% | 43% | 64° |
| 09:00 | ✕ | 0% | 24135m | 0% | 43% | 58° |
| 10:00 | ✕ | 21% | 24135m | 0% | 43% | 49° |
| 11:00 | ✕ | 95% | 24135m | 0% | 43% | 39° |
| 12:00 | ✕ | 99% | 24134m | 0% | 43% | 28° |
| 13:00 | ✕ | 100% | 24134m | 23% | 43% | 17° |
| 14:00 | ✕ | 100% | 24134m | 46% | 43% | 6.3° |
| 15:00 | ✕ | 66% | 24135m | 69% | 43% | -4.1° |
| 16:00 | ✕ | 37% | 24134m | 72% | 43% | -14° |
| 17:00 | ✕ | 23% | 24134m | 75% | 43% | -22° |
| 18:00 | ✕ | 4.2% | 24135m | 78% | 32% | -28° |
| 19:00 | ✕ | 78% | 24135m | 65% | 32% | -32° |
| 20:00 | ✕ | 64% | 24135m | 52% | 32% | -33° |
| 21:00 | ✕ | 0.6% | 23198m | 39% | 32% | -31° |
| 22:00 | ✓ | 3.4% | 24134m | 34% | 32% | -26° |
| 23:00 | ✓ | 2.4% | 24134m | 30% | 32% | -19° |
| Thu, Jul 9 | ||||||
| 24:00 | ✓ | 3.8% | 24135m | 26% | 32% | -10° |
| 01:00 | ✓ | 23% | 24135m | 17% | 32% | -0.29° |
| 02:00 | ✓ | 77% | 24134m | 8.7% | 32% | 10° |
| 03:00 | ✓ | 60% | 24135m | 0% | 32% | 21° |
| 04:00 | ✕ | 5% | 24134m | 0% | 32% | 33° |
| 05:00 | ✕ | 0% | 24135m | 0% | 32% | 44° |
| 06:00 | ✕ | 0% | 24135m | 0% | 32% | 54° |
| 07:00 | ✕ | 0% | 24134m | 0% | 32% | 64° |
| 08:00 | ✕ | 0% | 24135m | 0% | 32% | 69° |
| 09:00 | ✕ | 0% | 24135m | 0% | 32% | 68° |
| 10:00 | ✕ | 6.1% | 24134m | 7.4% | 32% | 61° |
| 11:00 | ✕ | 100% | 24135m | 15% | 32% | 52° |
| 12:00 | ✕ | 100% | 24135m | 22% | 32% | 41° |
| 13:00 | ✕ | 100% | 24134m | 48% | 32% | 30° |
| 14:00 | ✕ | 100% | 24135m | 74% | 32% | 19° |
| 15:00 | ✕ | 100% | 24135m | 100% | 32% | 8.5° |
| 16:00 | ✕ | 95% | 24135m | 100% | 32% | -1.5° |
| 17:00 | ✕ | 84% | 24135m | 100% | 32% | -11° |
| 18:00 | ✕ | 100% | 24135m | 100% | 22% | -18° |
| 19:00 | ✕ | 100% | 15827m | 67% | 22% | -24° |
| 20:00 | ✕ | 94% | 24135m | 33% | 22% | -28° |
| 21:00 | ✕ | 0.1% | 24134m | 0% | 22% | -28° |
| 22:00 | ✓ | 50% | 24135m | 0% | 22% | -26° |
| 23:00 | ✓ | 3.2% | 24134m | 0% | 22% | -21° |
| Fri, Jul 10 | ||||||
| 24:00 | ✓ | 4% | 24135m | 0% | 22% | -14° |
| 01:00 | ✓ | 2.2% | 24134m | 0% | 22% | -5.8° |
| 02:00 | ✓ | 5% | 24134m | 0% | 22% | 3.7° |
| 03:00 | ✓ | 3.8% | 24135m | 0% | 22% | 14° |
| 04:00 | ✕ | 1.4% | 24134m | 0% | 22% | 25° |
| 05:00 | ✕ | 0.2% | 24134m | 0% | 22% | 36° |
| 06:00 | ✕ | 0% | 24134m | 0% | 22% | 47° |
| 07:00 | ✕ | 0% | 24135m | 17% | 22% | 58° |
| 08:00 | ✕ | 0% | 24134m | 33% | 22% | 68° |
| 09:00 | ✕ | 0% | 24134m | 50% | 22% | 74° |
| 10:00 | ✕ | 4.5% | 24135m | 42% | 22% | 72° |
| 11:00 | ✕ | 100% | 24135m | 34% | 22% | 64° |
| 12:00 | ✕ | 100% | 24135m | 26% | 22% | 54° |
| 13:00 | ✕ | 77% | 24135m | 23% | 22% | 43° |
| 14:00 | ✕ | 55% | 24135m | 20% | 22% | 32° |
| 15:00 | ✕ | 32% | 24135m | 17% | 22% | 21° |
| 16:00 | ✕ | 22% | 24135m | 17% | 22% | 11° |
| 17:00 | ✕ | 11% | 24135m | 17% | 22% | 1.3° |
| 18:00 | ✕ | 0% | 24135m | 17% | 13% | -7.5° |
| 19:00 | ✕ | 0% | 24135m | 11% | 13% | -15° |
| 20:00 | ✕ | 0% | 24135m | 5.6% | 13% | -20° |
| 21:00 | ✕ | 0% | 24135m | 0% | 13% | -24° |
| 22:00 | ✓ | 0% | 24135m | 0% | 13% | -24° |
| 23:00 | ✓ | 0% | 24135m | 0% | 13% | -22° |
| Sat, Jul 11 | ||||||
| 24:00 | ✓ | 0% | 24135m | 0% | 13% | -18° |
| 01:00 | ✓ | 0% | 24135m | 0% | 13% | -11° |
| 02:00 | ✓ | 0% | 24135m | 0% | 13% | -3.4° |
| 03:00 | ✓ | 0% | 24135m | 0% | 13% | 5.9° |
| 04:00 | ✕ | 33% | 24135m | 0% | 13% | 16° |
| 05:00 | ✕ | 67% | 24135m | 0% | 13% | 26° |
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