Rule
Dark Skies
Estes Park - Dark Skies - Rocky Mountains
Estes Park, 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)
Estes Park
Wed, May 20 · 03:00–03:47 · 1h window
Medium confidence
43%
🌛Moon Altitude-20.4°
☁️Total Cloud Coverage1.4%
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 hour0matching hours in the next 86 hours
OR 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° |
|---|---|---|---|---|---|---|
| Thu, May 14 | ||||||
| 22:00 | ✓ | 97% | 24135m | 0% | 2.9% | -31° |
| 23:00 | ✓ | 99% | 24134m | 0% | 2.9% | -34° |
| Fri, May 15 | ||||||
| 24:00 | ✓ | 99% | 24135m | 0% | 2.9% | -33° |
| 01:00 | ✓ | 28% | 24134m | 0% | 2.9% | -29° |
| 02:00 | ✓ | 25% | 24134m | 0% | 2.9% | -23° |
| 03:00 | ✓ | 0.7% | 24134m | 0% | 2.9% | -15° |
| 04:00 | ✕ | 0% | 24135m | 0% | 2.9% | -5.5° |
| 05:00 | ✕ | 0% | 24134m | 0% | 2.9% | 4.7° |
| 06:00 | ✕ | 0% | 24135m | 0% | 2.9% | 16° |
| 07:00 | ✕ | 0% | 24134m | 0% | 2.9% | 27° |
| 08:00 | ✕ | 0% | 24135m | 0% | 2.9% | 38° |
| 09:00 | ✕ | 0% | 24134m | 0% | 2.9% | 49° |
| 10:00 | ✕ | 0% | 24134m | 0% | 2.9% | 58° |
| 11:00 | ✕ | 0% | 24135m | 0% | 2.9% | 66° |
| 12:00 | ✕ | 4.4% | 24134m | 0% | 2.9% | 68° |
| 13:00 | ✕ | 75% | 24134m | 4% | 2.9% | 64° |
| 14:00 | ✕ | 94% | 24134m | 8% | 2.9% | 56° |
| 15:00 | ✕ | 93% | 24134m | 12% | 2.9% | 46° |
| 16:00 | ✕ | 60% | 24134m | 21% | 2.9% | 35° |
| 17:00 | ✕ | 60% | 24134m | 30% | 2.9% | 24° |
| 18:00 | ✕ | 97% | 24134m | 39% | 0.2% | 14° |
| 19:00 | ✕ | 92% | 24134m | 33% | 0.2% | 3.6° |
| 20:00 | ✕ | 89% | 24134m | 28% | 0.2% | -5.9° |
| 21:00 | ✕ | 93% | 24134m | 22% | 0.2% | -14° |
| 22:00 | ✓ | 100% | 24135m | 22% | 0.2% | -21° |
| 23:00 | ✓ | 99% | 24135m | 22% | 0.2% | -26° |
| Sat, May 16 | ||||||
| 24:00 | ✓ | 25% | 24135m | 22% | 0.2% | -28° |
| 01:00 | ✓ | 100% | 24135m | 21% | 0.2% | -27° |
| 02:00 | ✓ | 68% | 24135m | 21% | 0.2% | -24° |
| 03:00 | ✓ | 87% | 24134m | 20% | 0.2% | -18° |
| 04:00 | ✕ | 33% | 24134m | 47% | 0.2% | -10° |
| 05:00 | ✕ | 2.6% | 24135m | 73% | 0.2% | -1.4° |
| 06:00 | ✕ | 100% | 22688m | 100% | 0.2% | 8.5° |
| 07:00 | ✕ | 21% | 24135m | 77% | 0.2% | 19° |
| 08:00 | ✕ | 1.2% | 24134m | 55% | 0.2% | 30° |
| 09:00 | ✕ | 3.8% | 24135m | 32% | 0.2% | 41° |
| 10:00 | ✕ | 100% | 24135m | 36% | 0.2% | 52° |
| 11:00 | ✕ | 100% | 20587m | 39% | 0.2% | 62° |
| 12:00 | ✕ | 100% | 24135m | 42% | 0.2% | 70° |
| 13:00 | ✕ | 77% | 24134m | 46% | 0.2% | 73° |
| 14:00 | ✕ | 85% | 24134m | 49% | 0.2% | 68° |
| 15:00 | ✕ | 87% | 24134m | 52% | 0.2% | 59° |
| 16:00 | ✕ | 61% | 24134m | 59% | 0.2% | 49° |
| 17:00 | ✕ | 46% | 24135m | 65% | 0.2% | 38° |
| 18:00 | ✕ | 66% | 24135m | 71% | 0.5% | 27° |
| 19:00 | ✕ | 93% | 24135m | 55% | 0.5% | 17° |
| 20:00 | ✕ | 97% | 24135m | 40% | 0.5% | 6.8° |
| 21:00 | ✕ | 85% | 24134m | 24% | 0.5% | -2.4° |
| 22:00 | ✓ | 24% | 24134m | 31% | 0.5% | -10° |
| 23:00 | ✓ | 32% | 24135m | 39% | 0.5% | -17° |
| Sun, May 17 | ||||||
| 24:00 | ✓ | 4.5% | 24135m | 46% | 0.5% | -22° |
| 01:00 | ✓ | 4.3% | 24134m | 46% | 0.5% | -24° |
| 02:00 | ✓ | 1.8% | 24135m | 46% | 0.5% | -23° |
| 03:00 | ✓ | 5% | 24135m | 46% | 0.5% | -20° |
| 04:00 | ✕ | 85% | 24134m | 57% | 0.5% | -15° |
| 05:00 | ✕ | 7.1% | 24134m | 68% | 0.5% | -7.7° |
| 06:00 | ✕ | 5.4% | 18306m | 79% | 0.5% | 0.77° |
| 07:00 | ✕ | 22% | 24134m | 82% | 0.5% | 10° |
| 08:00 | ✕ | 20% | 20515m | 84% | 0.5% | 20° |
| 09:00 | ✕ | 53% | 1221m | 87% | 0.5% | 31° |
| 10:00 | ✕ | 100% | 937m | 91% | 0.5% | 42° |
| 11:00 | ✕ | 100% | 4910m | 94% | 0.5% | 53° |
| 12:00 | ✕ | 100% | 2467m | 98% | 0.5% | 64° |
| 13:00 | ✕ | 100% | 5525m | 90% | 0.5% | 73° |
| 14:00 | ✕ | 89% | 22663m | 82% | 0.5% | 77° |
| 15:00 | ✕ | 74% | 5571m | 74% | 0.5% | 72° |
| 16:00 | ✕ | 100% | 339m | 80% | 0.5% | 62° |
| 17:00 | ✕ | 100% | 42m | 86% | 0.5% | 51° |
| 18:00 | ✕ | 100% | 85m | 92% | 3.8% | 41° |
| 19:00 | ✕ | 100% | 66m | 79% | 3.8% | 30° |
| 20:00 | ✕ | 100% | 46m | 66% | 3.8% | 19° |
| 21:00 | ✕ | 100% | 27m | 53% | 3.8% | 9.5° |
| 22:00 | ✓ | 100% | 35m | 64% | 3.8% | 0.35° |
| 23:00 | ✓ | 100% | 44m | 76% | 3.8% | -7.7° |
| Mon, May 18 | ||||||
| 24:00 | ✓ | 100% | 52m | 87% | 3.8% | -14° |
| 01:00 | ✓ | 100% | 69m | 89% | 3.8% | -19° |
| 02:00 | ✓ | 100% | 86m | 91% | 3.8% | -22° |
| 03:00 | ✓ | 100% | 102m | 93% | 3.8% | -21° |
| 04:00 | ✕ | 100% | 124m | 95% | 3.8% | -19° |
| 05:00 | ✕ | 100% | 146m | 96% | 3.8% | -14° |
| 06:00 | ✕ | 100% | 167m | 97% | 3.8% | -7.2° |
| 07:00 | ✕ | 100% | 161m | 95% | 3.8% | 1° |
| 08:00 | ✕ | 100% | 155m | 92% | 3.8% | 10° |
| 09:00 | ✕ | 100% | 148m | 90% | 3.8% | 20° |
| 10:00 | ✕ | 100% | 158m | 91% | 3.8% | 31° |
| 11:00 | ✕ | 100% | 168m | 92% | 3.8% | 41° |
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