Rule
Dark Skies
Passo Giau - Dark Skies - Dolomites
Cortina d'Ampezzo, Veneto, 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
Good Dark Skies
Passo Giau
Tue, Mar 17 · 22:00–23:00 · 1h window
Medium confidence
46%
🌛Moon Altitude-46.4°
☁️Total Cloud Coverage19.2%
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72-hour requirements breakdown
What passed or failed, hour by hour0matching hours in the next 92 hours
OR 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° |
|---|---|---|---|---|---|---|
| Tue, Mar 10 | ||||||
| 05:00 | ✕ | 100% | 24135m | 28% | 58% | 17° |
| 06:00 | ✕ | 100% | 24135m | 55% | 58% | 16° |
| 07:00 | ✕ | 100% | 24135m | 82% | 58% | 13° |
| 08:00 | ✕ | 78% | 24135m | 88% | 58% | 8.1° |
| 09:00 | ✕ | 70% | 24134m | 94% | 58% | 1.5° |
| 10:00 | ✕ | 80% | 7543m | 100% | 58% | -6.4° |
| 11:00 | ✕ | 97% | 6789m | 100% | 58% | -15° |
| 12:00 | ✕ | 100% | 11367m | 100% | 58% | -25° |
| 13:00 | ✕ | 99% | 24134m | 100% | 58% | -35° |
| 14:00 | ✕ | 95% | 10409m | 67% | 58% | -45° |
| 15:00 | ✕ | 89% | 16031m | 49% | 58% | -54° |
| 16:00 | ✕ | 92% | 13561m | 24% | 58% | -63° |
| 17:00 | ✕ | 84% | 24134m | 43% | 58% | -70° |
| 18:00 | ✕ | 80% | 18186m | 62% | 58% | -71° |
| 19:00 | ✓ | 83% | 8002m | 82% | 58% | -66° |
| 20:00 | ✓ | 79% | 3268m | 75% | 58% | -57° |
| 21:00 | ✓ | 91% | 839m | 77% | 58% | -48° |
| 22:00 | ✓ | 82% | 1068m | 74% | 58% | -38° |
| 23:00 | ✓ | 91% | 694m | 81% | 58% | -28° |
| Wed, Mar 11 | ||||||
| 24:00 | ✓ | 91% | 3884m | 87% | 58% | -18° |
| 01:00 | ✕ | 98% | 10311m | 94% | 49% | -9.6° |
| 02:00 | ✕ | 100% | 17771m | 93% | 49% | -1.5° |
| 03:00 | ✕ | 100% | 17559m | 92% | 49% | 5.3° |
| 04:00 | ✕ | 100% | 18056m | 91% | 49% | 11° |
| 05:00 | ✕ | 100% | 15002m | 94% | 49% | 14° |
| 06:00 | ✕ | 100% | 9554m | 97% | 49% | 15° |
| 07:00 | ✕ | 100% | 1130m | 100% | 49% | 14° |
| 08:00 | ✕ | 100% | 163m | 100% | 49% | 11° |
| 09:00 | ✕ | 100% | 54m | 100% | 49% | 6° |
| 10:00 | ✕ | 100% | 41m | 100% | 49% | -0.74° |
| 11:00 | ✕ | 98% | 41m | 100% | 49% | -8.7° |
| 12:00 | ✕ | 97% | 57m | 100% | 49% | -18° |
| 13:00 | ✕ | 98% | 65m | 100% | 49% | -27° |
| 14:00 | ✕ | 89% | 97m | 85% | 49% | -37° |
| 15:00 | ✕ | 77% | 6626m | 71% | 49% | -47° |
| 16:00 | ✕ | 88% | 7127m | 56% | 49% | -56° |
| 17:00 | ✕ | 92% | 24135m | 64% | 49% | -65° |
| 18:00 | ✕ | 100% | 17680m | 73% | 49% | -71° |
| 19:00 | ✓ | 100% | 13837m | 82% | 49% | -71° |
| 20:00 | ✓ | 97% | 8639m | 61% | 49% | -65° |
| 21:00 | ✓ | 93% | 11751m | 39% | 49% | -56° |
| 22:00 | ✓ | 96% | 14864m | 18% | 49% | -47° |
| 23:00 | ✓ | 96% | 11542m | 25% | 49% | -37° |
| Thu, Mar 12 | ||||||
| 24:00 | ✓ | 96% | 4617m | 32% | 49% | -27° |
| 01:00 | ✓ | 97% | 4649m | 39% | 39% | -18° |
| 02:00 | ✓ | 93% | 10401m | 46% | 39% | -8.7° |
| 03:00 | ✓ | 84% | 10473m | 53% | 39% | -0.84° |
| 04:00 | ✓ | 98% | 24134m | 60% | 39% | 5.8° |
| 05:00 | ✕ | 99% | 24135m | 60% | 39% | 11° |
| 06:00 | ✕ | 98% | 24134m | 61% | 39% | 14° |
| 07:00 | ✕ | 100% | 24135m | 61% | 39% | 15° |
| 08:00 | ✕ | 100% | 24135m | 74% | 39% | 14° |
| 09:00 | ✕ | 100% | 24135m | 87% | 39% | 10° |
| 10:00 | ✕ | 100% | 24134m | 100% | 39% | 5.1° |
| 11:00 | ✕ | 91% | 21704m | 100% | 39% | -1.7° |
| 12:00 | ✕ | 99% | 19204m | 100% | 39% | -9.8° |
| 13:00 | ✕ | 100% | 14096m | 100% | 39% | -19° |
| 14:00 | ✕ | 100% | 24134m | 67% | 39% | -28° |
| 15:00 | ✕ | 100% | 24135m | 33% | 39% | -38° |
| 16:00 | ✕ | 100% | 24134m | 0% | 39% | -48° |
| 17:00 | ✕ | 100% | 24135m | 7.4% | 39% | -57° |
| 18:00 | ✕ | 99% | 24135m | 15% | 39% | -66° |
| 19:00 | ✓ | 51% | 12934m | 22% | 39% | -71° |
| 20:00 | ✓ | 64% | 10777m | 20% | 39% | -70° |
| 21:00 | ✓ | 78% | 8122m | 17% | 39% | -64° |
| 22:00 | ✓ | 89% | 1941m | 15% | 39% | -55° |
| 23:00 | ✓ | 89% | 1026m | 10% | 39% | -45° |
| Fri, Mar 13 | ||||||
| 24:00 | ✓ | 87% | 18805m | 5% | 39% | -35° |
| 01:00 | ✓ | 77% | 24135m | 0% | 30% | -25° |
| 02:00 | ✓ | 75% | 24134m | 0% | 30% | -16° |
| 03:00 | ✓ | 73% | 24134m | 0% | 30% | -6.9° |
| 04:00 | ✓ | 64% | 24134m | 0% | 30% | 0.97° |
| 05:00 | ✕ | 55% | 24134m | 19% | 30% | 7.6° |
| 06:00 | ✕ | 46% | 24135m | 37% | 30% | 13° |
| 07:00 | ✕ | 34% | 24135m | 56% | 30% | 16° |
| 08:00 | ✕ | 47% | 21349m | 70% | 30% | 16° |
| 09:00 | ✕ | 59% | 18563m | 85% | 30% | 15° |
| 10:00 | ✕ | 71% | 15777m | 99% | 30% | 11° |
| 11:00 | ✕ | 77% | 12845m | 99% | 30% | 5.5° |
| 12:00 | ✕ | 83% | 9913m | 100% | 30% | -1.6° |
| 13:00 | ✕ | 89% | 6981m | 100% | 30% | -9.8° |
| 14:00 | ✕ | 84% | 6895m | 94% | 30% | -19° |
| 15:00 | ✕ | 79% | 6808m | 88% | 30% | -28° |
| 16:00 | ✕ | 74% | 6722m | 82% | 30% | -38° |
| 17:00 | ✕ | 81% | 6773m | 84% | 30% | -48° |
| 18:00 | ✕ | 88% | 6824m | 87% | 30% | -57° |
| 19:00 | ✓ | 95% | 6875m | 90% | 30% | -65° |
| 20:00 | ✓ | 92% | 4705m | 88% | 30% | -69° |
| 21:00 | ✓ | 90% | 2535m | 86% | 30% | -67° |
| 22:00 | ✓ | 87% | 365m | 84% | 30% | -61° |
| 23:00 | ✓ | 91% | 257m | 88% | 30% | -52° |
| Sat, Mar 14 | ||||||
| 24:00 | ✓ | 96% | 149m | 93% | 30% | -42° |
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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