Rule
Dark Skies
Alpe di Siusi - Dark Skies - Dolomites
Siusi, Trentino-Alto Adige, Italy
Moonless nights with crystal-clear skies for deep-sky photography
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/Rome
Next opportunity
Excellent Dark Skies (pristine)
Alpe di Siusi
Tomorrow · 02:00–03:01 · 1h window
Medium confidence
45%
🌛Moon Altitude-3.4-6.8°
☁️Total Cloud Coverage8.1-18.4%
Pristine Dark Skies (pristine)
Alpe di Siusi
Tue, May 26 · 02:00–02:59
🌛Moon Altitude:9.3°
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 Europe/Rome | 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° |
|---|---|---|---|---|---|---|
| Sun, May 24 | ||||||
| 06:00 | ✕ | 5% | 24134m | 0% | 61% | -31° |
| 07:00 | ✕ | 5% | 24135m | 0% | 61% | -35° |
| 08:00 | ✕ | 5% | 24134m | 0% | 61% | -37° |
| 09:00 | ✕ | 2.9% | 24134m | 27% | 61% | -36° |
| 10:00 | ✕ | 0% | 24134m | 55% | 61% | -32° |
| 11:00 | ✕ | 0% | 24134m | 82% | 61% | -25° |
| 12:00 | ✕ | 0% | 24135m | 88% | 61% | -17° |
| 13:00 | ✕ | 4.1% | 24134m | 94% | 61% | -8.3° |
| 14:00 | ✕ | 4.8% | 24135m | 100% | 61% | 1.4° |
| 15:00 | ✕ | 53% | 24135m | 94% | 61% | 11° |
| 16:00 | ✕ | 90% | 24135m | 88% | 61% | 21° |
| 17:00 | ✕ | 28% | 24134m | 82% | 61% | 30° |
| 18:00 | ✕ | 8.4% | 24134m | 82% | 61% | 38° |
| 19:00 | ✕ | 72% | 24134m | 82% | 61% | 43° |
| 20:00 | ✕ | 51% | 22589m | 82% | 61% | 46° |
| 21:00 | ✕ | 9.7% | 22797m | 55% | 61% | 46° |
| 22:00 | ✕ | 83% | 24134m | 27% | 61% | 42° |
| 23:00 | ✓ | 100% | 24135m | 0% | 61% | 35° |
| Mon, May 25 | ||||||
| 24:00 | ✓ | 79% | 24134m | 0% | 61% | 26° |
| 01:00 | ✓ | 5.9% | 24135m | 0% | 61% | 17° |
| 02:00 | ✓ | 8.1% | 24135m | 0% | 71% | 6.8° |
| 03:00 | ✓ | 18% | 24135m | 0% | 71% | -3.4° |
| 04:00 | ✕ | 21% | 24135m | 0% | 71% | -13° |
| 05:00 | ✕ | 20% | 24135m | 0% | 71% | -23° |
| 06:00 | ✕ | 5% | 24134m | 0% | 71% | -31° |
| 07:00 | ✕ | 5.4% | 24134m | 0% | 71% | -38° |
| 08:00 | ✕ | 6.4% | 24134m | 0% | 71% | -42° |
| 09:00 | ✕ | 5% | 24135m | 27% | 71% | -43° |
| 10:00 | ✕ | 5% | 24134m | 55% | 71% | -41° |
| 11:00 | ✕ | 4.6% | 24135m | 82% | 71% | -36° |
| 12:00 | ✕ | 5% | 24135m | 88% | 71% | -28° |
| 13:00 | ✕ | 5% | 24134m | 93% | 71% | -20° |
| 14:00 | ✕ | 17% | 24135m | 99% | 71% | -10° |
| 15:00 | ✕ | 11% | 24134m | 77% | 71% | -0.26° |
| 16:00 | ✕ | 6.1% | 24134m | 54% | 71% | 9.5° |
| 17:00 | ✕ | 22% | 24134m | 32% | 71% | 19° |
| 18:00 | ✕ | 61% | 24134m | 34% | 71% | 27° |
| 19:00 | ✕ | 28% | 24135m | 37% | 71% | 34° |
| 20:00 | ✕ | 43% | 24134m | 39% | 71% | 39° |
| 21:00 | ✕ | 26% | 24135m | 26% | 71% | 40° |
| 22:00 | ✕ | 25% | 14656m | 13% | 71% | 39° |
| 23:00 | ✓ | 4.2% | 24135m | 0% | 71% | 34° |
| Tue, May 26 | ||||||
| 24:00 | ✓ | 4.9% | 24134m | 0% | 71% | 27° |
| 01:00 | ✓ | 5% | 24134m | 0% | 71% | 19° |
| 02:00 | ✓ | 5% | 24135m | 0% | 80% | 9.3° |
| 03:00 | ✕ | 5% | 24134m | 0% | 80% | -0.69° |
| 04:00 | ✕ | 5% | 24135m | 0% | 80% | -11° |
| 05:00 | ✕ | 5% | 24134m | 0% | 80% | -21° |
| 06:00 | ✕ | 5% | 24134m | 32% | 80% | -30° |
| 07:00 | ✕ | 5% | 24134m | 63% | 80% | -39° |
| 08:00 | ✕ | 5% | 24135m | 95% | 80% | -45° |
| 09:00 | ✕ | 3.9% | 24134m | 96% | 80% | -49° |
| 10:00 | ✕ | 1.2% | 24135m | 98% | 80% | -49° |
| 11:00 | ✕ | 2.7% | 22973m | 100% | 80% | -45° |
| 12:00 | ✕ | 1.8% | 22940m | 100% | 80% | -39° |
| 13:00 | ✕ | 4.3% | 22876m | 100% | 80% | -31° |
| 14:00 | ✕ | 4% | 22834m | 100% | 80% | -21° |
| 15:00 | ✕ | 5.2% | 22744m | 100% | 80% | -11° |
| 16:00 | ✕ | 5.4% | 22777m | 100% | 80% | -1.6° |
| 17:00 | ✕ | 48% | 22694m | 100% | 80% | 7.9° |
| 18:00 | ✕ | 76% | 24134m | 100% | 80% | 17° |
| 19:00 | ✕ | 82% | 22589m | 100% | 80% | 24° |
| 20:00 | ✕ | 99% | 10308m | 100% | 80% | 30° |
| 21:00 | ✕ | 68% | 12643m | 88% | 80% | 34° |
| 22:00 | ✕ | 36% | 14978m | 76% | 80% | 34° |
| 23:00 | ✓ | 5% | 17313m | 64% | 80% | 32° |
| Wed, May 27 | ||||||
| 24:00 | ✓ | 3.3% | 19587m | 67% | 80% | 27° |
| 01:00 | ✓ | 1.7% | 21861m | 69% | 80% | 20° |
| 02:00 | ✓ | 0% | 24135m | 71% | 87% | 11° |
| 03:00 | ✕ | 0.5% | 23776m | 77% | 87% | 2° |
| 04:00 | ✕ | 1% | 23417m | 84% | 87% | -8° |
| 05:00 | ✕ | 1.5% | 23058m | 90% | 87% | -18° |
| 06:00 | ✕ | 5.8% | 23417m | 92% | 87% | -28° |
| 07:00 | ✕ | 10% | 23776m | 94% | 87% | -38° |
| 08:00 | ✕ | 14% | 24135m | 95% | 87% | -46° |
| 09:00 | ✕ | 17% | 23861m | 95% | 87% | -52° |
| 10:00 | ✕ | 19% | 23588m | 96% | 87% | -55° |
| 11:00 | ✕ | 21% | 23314m | 96% | 87% | -54° |
| 12:00 | ✕ | 33% | 20552m | 97% | 87% | -49° |
| 13:00 | ✕ | 44% | 17791m | 98% | 87% | -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.
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