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
Pristine Dark Skies (pristine)
Passo Giau
Fri, Feb 20 · 04:00–05:26 · 1h window
Medium confidence
46%
🌛Moon Altitude-35.3--29°
☁️Total Cloud Coverage3-4.5%
Good Dark Skies
Passo Giau
Sat, Feb 21 · 03:00–04:00
🌛Moon Altitude:-33.5°
Medium
Dark Skies
Passo Giau
Sat, Feb 21 · 04:00–05:00
🌛Moon Altitude:-32.2°
Medium
Good Dark Skies
Passo Giau
Sun, Feb 22 · 02:00–04:00
🌛Moon Altitude:-26.4--22.8°
Low
Dark Skies
Passo Giau
Sun, Feb 22 · 04:00–05:00
🌛Moon Altitude:-27.3°
Low
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72-hour requirements breakdown
What passed or failed, hour by hour0matching hours in the next 95 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° |
|---|---|---|---|---|---|---|
| Sun, Feb 15 | ||||||
| 19:00 | ✓ | 5% | 24134m | 82% | 4.2% | -35° |
| 20:00 | ✓ | 96% | 24134m | 71% | 4.2% | -45° |
| 21:00 | ✓ | 94% | 24134m | 46% | 4.2% | -53° |
| 22:00 | ✓ | 93% | 24135m | 22% | 4.2% | -61° |
| 23:00 | ✓ | 79% | 19988m | 31% | 4.2% | -64° |
| Mon, Feb 16 | ||||||
| 24:00 | ✓ | 100% | 13198m | 40% | 4.2% | -63° |
| 01:00 | ✕ | 100% | 17365m | 49% | 1.2% | -57° |
| 02:00 | ✕ | 29% | 10431m | 76% | 1.2% | -48° |
| 03:00 | ✕ | 12% | 23422m | 61% | 1.2% | -39° |
| 04:00 | ✕ | 14% | 23790m | 46% | 1.2% | -28° |
| 05:00 | ✕ | 100% | 23831m | 63% | 1.2% | -18° |
| 06:00 | ✕ | 94% | 22964m | 81% | 1.2% | -8.6° |
| 07:00 | ✕ | 83% | 23979m | 98% | 1.2% | 0.6° |
| 08:00 | ✕ | 100% | 16009m | 90% | 1.2% | 8.9° |
| 09:00 | ✕ | 99% | 24134m | 81% | 1.2% | 16° |
| 10:00 | ✕ | 100% | 24135m | 72% | 1.2% | 21° |
| 11:00 | ✕ | 100% | 24134m | 79% | 1.2% | 24° |
| 12:00 | ✕ | 100% | 20449m | 86% | 1.2% | 25° |
| 13:00 | ✕ | 100% | 18168m | 93% | 1.2% | 23° |
| 14:00 | ✕ | 99% | 9662m | 27% | 1.2% | 19° |
| 15:00 | ✕ | 89% | 10951m | 24% | 1.2% | 12° |
| 16:00 | ✕ | 24% | 24135m | 20% | 1.2% | 4.4° |
| 17:00 | ✕ | 12% | 24135m | 26% | 1.2% | -4.4° |
| 18:00 | ✕ | 5.5% | 24134m | 32% | 1.2% | -14° |
| 19:00 | ✓ | 34% | 23807m | 38% | 1.2% | -24° |
| 20:00 | ✓ | 28% | 23814m | 25% | 1.2% | -33° |
| 21:00 | ✓ | 100% | 6133m | 13% | 1.2% | -43° |
| 22:00 | ✓ | 100% | 21902m | 0% | 1.2% | -51° |
| 23:00 | ✓ | 100% | 23802m | 0% | 1.2% | -57° |
| Tue, Feb 17 | ||||||
| 24:00 | ✓ | 100% | 22767m | 0% | 1.2% | -59° |
| 01:00 | ✓ | 100% | 18595m | 0% | 0% | -57° |
| 02:00 | ✓ | 100% | 23140m | 13% | 0% | -51° |
| 03:00 | ✓ | 100% | 23574m | 26% | 0% | -42° |
| 04:00 | ✓ | 100% | 23640m | 39% | 0% | -33° |
| 05:00 | ✓ | 82% | 23685m | 58% | 0% | -23° |
| 06:00 | ✕ | 13% | 23771m | 76% | 0% | -13° |
| 07:00 | ✕ | 14% | 23815m | 95% | 0% | -2.8° |
| 08:00 | ✕ | 9.2% | 24134m | 93% | 0% | 6.6° |
| 09:00 | ✕ | 1.4% | 24135m | 91% | 0% | 15° |
| 10:00 | ✕ | 0.5% | 24134m | 89% | 0% | 22° |
| 11:00 | ✕ | 0.9% | 24134m | 87% | 0% | 27° |
| 12:00 | ✕ | 21% | 24135m | 85% | 0% | 30° |
| 13:00 | ✕ | 47% | 20587m | 83% | 0% | 30° |
| 14:00 | ✕ | 84% | 19703m | 62% | 0% | 27° |
| 15:00 | ✕ | 0.5% | 24135m | 41% | 0% | 22° |
| 16:00 | ✕ | 7.2% | 24134m | 21% | 0% | 15° |
| 17:00 | ✕ | 93% | 14075m | 21% | 0% | 6.9° |
| 18:00 | ✕ | 100% | 17827m | 22% | 0% | -2.3° |
| 19:00 | ✓ | 100% | 15871m | 22% | 0% | -12° |
| 20:00 | ✓ | 89% | 4858m | 15% | 0% | -22° |
| 21:00 | ✓ | 74% | 10787m | 7.4% | 0% | -31° |
| 22:00 | ✓ | 38% | 24135m | 0% | 0% | -40° |
| 23:00 | ✓ | 25% | 20612m | 0% | 0% | -47° |
| Wed, Feb 18 | ||||||
| 24:00 | ✓ | 24% | 14623m | 0% | 0% | -52° |
| 01:00 | ✓ | 34% | 13984m | 0% | 1.2% | -53° |
| 02:00 | ✓ | 34% | 8380m | 0% | 1.2% | -50° |
| 03:00 | ✓ | 36% | 7841m | 0% | 1.2% | -44° |
| 04:00 | ✓ | 31% | 8352m | 0% | 1.2% | -36° |
| 05:00 | ✓ | 30% | 14163m | 0% | 1.2% | -26° |
| 06:00 | ✕ | 74% | 14313m | 0% | 1.2% | -16° |
| 07:00 | ✕ | 14% | 23832m | 0% | 1.2% | -6° |
| 08:00 | ✕ | 21% | 24135m | 0% | 1.2% | 4° |
| 09:00 | ✕ | 54% | 24135m | 0% | 1.2% | 13° |
| 10:00 | ✕ | 12% | 24135m | 0% | 1.2% | 22° |
| 11:00 | ✕ | 4.7% | 24135m | 0% | 1.2% | 29° |
| 12:00 | ✕ | 4.9% | 24134m | 0% | 1.2% | 34° |
| 13:00 | ✕ | 4.7% | 24134m | 0% | 1.2% | 37° |
| 14:00 | ✕ | 11% | 24135m | 0% | 1.2% | 36° |
| 15:00 | ✕ | 34% | 24134m | 0% | 1.2% | 32° |
| 16:00 | ✕ | 41% | 24135m | 0% | 1.2% | 26° |
| 17:00 | ✕ | 18% | 24135m | 0% | 1.2% | 18° |
| 18:00 | ✕ | 9.3% | 24134m | 0% | 1.2% | 9.6° |
| 19:00 | ✓ | 65% | 23800m | 0% | 1.2% | 0.03° |
| 20:00 | ✓ | 100% | 16112m | 13% | 1.2% | -9.8° |
| 21:00 | ✓ | 100% | 14562m | 26% | 1.2% | -19° |
| 22:00 | ✓ | 100% | 14325m | 39% | 1.2% | -29° |
| 23:00 | ✓ | 100% | 14286m | 50% | 1.2% | -37° |
| Thu, Feb 19 | ||||||
| 24:00 | ✓ | 100% | 14587m | 62% | 1.2% | -43° |
| 01:00 | ✓ | 100% | 14756m | 73% | 4.5% | -46° |
| 02:00 | ✓ | 100% | 9883m | 80% | 4.5% | -46° |
| 03:00 | ✓ | 100% | 5011m | 87% | 4.5% | -43° |
| 04:00 | ✓ | 100% | 138m | 95% | 4.5% | -37° |
| 05:00 | ✓ | 100% | 159m | 96% | 4.5% | -28° |
| 06:00 | ✕ | 100% | 179m | 98% | 4.5% | -19° |
| 07:00 | ✕ | 100% | 200m | 100% | 4.5% | -9° |
| 08:00 | ✕ | 100% | 188m | 100% | 4.5% | 1.2° |
| 09:00 | ✕ | 100% | 177m | 100% | 4.5% | 11° |
| 10:00 | ✕ | 100% | 165m | 100% | 4.5% | 21° |
| 11:00 | ✕ | 100% | 176m | 100% | 4.5% | 30° |
| 12:00 | ✕ | 100% | 187m | 100% | 4.5% | 37° |
| 13:00 | ✕ | 100% | 198m | 100% | 4.5% | 42° |
| 14:00 | ✕ | 100% | 3820m | 87% | 4.5% | 43° |
| 15:00 | ✕ | 100% | 7443m | 75% | 4.5% | 42° |
| 16:00 | ✕ | 100% | 11066m | 63% | 4.5% | 37° |
| 17:00 | ✕ | 100% | 12650m | 60% | 4.5% | 30° |
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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