Rule
Dark Skies
Verbier - Dark Skies - Alps
Verbier, Valais, Switzerland
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/Zurich
Next opportunity
Pristine Dark Skies (pristine)
Verbier
Today · 22:20–04:38 · 6h window
Medium confidence
52%
🌛Moon Altitude-11.6-36.6°
☁️Total Cloud Coverage1.1-14.2%
Pristine Dark Skies (pristine)
Verbier
Sat, Apr 25 · 03:00–04:31
🌛Moon Altitude:-0.7-8.8°
Low
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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/Zurich | 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° |
|---|---|---|---|---|---|---|
| Mon, Apr 20 | ||||||
| 21:00 | ✕ | 79% | 2891m | 0% | 12% | 36° |
| 22:00 | ✓ | 84% | 6874m | 0% | 12% | 26° |
| 23:00 | ✓ | 90% | 7128m | 0% | 12% | 16° |
| Tue, Apr 21 | ||||||
| 24:00 | ✓ | 85% | 7947m | 0% | 12% | 7.7° |
| 01:00 | ✓ | 96% | 12053m | 0% | 12% | -0.12° |
| 02:00 | ✓ | 91% | 24134m | 0% | 21% | -6.7° |
| 03:00 | ✓ | 94% | 24135m | 0% | 21% | -12° |
| 04:00 | ✓ | 68% | 24135m | 0% | 21% | -15° |
| 05:00 | ✕ | 38% | 24134m | 0% | 21% | -16° |
| 06:00 | ✕ | 23% | 24135m | 0% | 21% | -14° |
| 07:00 | ✕ | 64% | 24134m | 0% | 21% | -11° |
| 08:00 | ✕ | 54% | 24135m | 0% | 21% | -5.6° |
| 09:00 | ✕ | 72% | 24134m | 20% | 21% | 1.2° |
| 10:00 | ✕ | 61% | 24135m | 40% | 21% | 9.2° |
| 11:00 | ✕ | 47% | 24135m | 61% | 21% | 18° |
| 12:00 | ✕ | 5% | 24134m | 68% | 21% | 28° |
| 13:00 | ✕ | 4.9% | 24135m | 75% | 21% | 37° |
| 14:00 | ✕ | 6.3% | 24135m | 82% | 21% | 47° |
| 15:00 | ✕ | 19% | 24134m | 55% | 21% | 57° |
| 16:00 | ✕ | 64% | 22368m | 27% | 21% | 66° |
| 17:00 | ✕ | 49% | 16736m | 0% | 21% | 71° |
| 18:00 | ✕ | 51% | 7164m | 0% | 21% | 71° |
| 19:00 | ✕ | 77% | 22290m | 0% | 21% | 65° |
| 20:00 | ✕ | 66% | 16758m | 0% | 21% | 56° |
| 21:00 | ✕ | 56% | 24134m | 0% | 21% | 47° |
| 22:00 | ✓ | 14% | 24134m | 0% | 21% | 37° |
| 23:00 | ✓ | 4.7% | 24134m | 0% | 21% | 27° |
| Wed, Apr 22 | ||||||
| 24:00 | ✓ | 3.3% | 24134m | 0% | 21% | 17° |
| 01:00 | ✓ | 2.1% | 24135m | 0% | 21% | 8.4° |
| 02:00 | ✓ | 1.1% | 24134m | 0% | 32% | 0.45° |
| 03:00 | ✓ | 1.1% | 24135m | 0% | 32% | -6.4° |
| 04:00 | ✓ | 1.1% | 24134m | 0% | 32% | -12° |
| 05:00 | ✕ | 1.9% | 24135m | 0% | 32% | -15° |
| 06:00 | ✕ | 4% | 24134m | 0% | 32% | -16° |
| 07:00 | ✕ | 4.8% | 24135m | 0% | 32% | -15° |
| 08:00 | ✕ | 12% | 9248m | 0% | 32% | -12° |
| 09:00 | ✕ | 87% | 7773m | 13% | 32% | -6.6° |
| 10:00 | ✕ | 65% | 9021m | 26% | 32% | 0.09° |
| 11:00 | ✕ | 86% | 9119m | 39% | 32% | 8° |
| 12:00 | ✕ | 92% | 13208m | 43% | 32% | 17° |
| 13:00 | ✕ | 83% | 9544m | 48% | 32% | 26° |
| 14:00 | ✕ | 97% | 9978m | 52% | 32% | 36° |
| 15:00 | ✕ | 100% | 17754m | 44% | 32% | 46° |
| 16:00 | ✕ | 96% | 12389m | 35% | 32% | 56° |
| 17:00 | ✕ | 71% | 21977m | 26% | 32% | 64° |
| 18:00 | ✕ | 100% | 19910m | 51% | 32% | 70° |
| 19:00 | ✕ | 86% | 20424m | 75% | 32% | 70° |
| 20:00 | ✕ | 37% | 24134m | 100% | 32% | 64° |
| 21:00 | ✕ | 40% | 7037m | 83% | 32% | 56° |
| 22:00 | ✓ | 21% | 8556m | 67% | 32% | 46° |
| 23:00 | ✓ | 18% | 8506m | 50% | 32% | 36° |
| Thu, Apr 23 | ||||||
| 24:00 | ✓ | 16% | 10434m | 50% | 32% | 26° |
| 01:00 | ✓ | 18% | 5019m | 50% | 32% | 16° |
| 02:00 | ✓ | 16% | 5199m | 50% | 43% | 7.3° |
| 03:00 | ✓ | 13% | 24135m | 33% | 43% | -0.97° |
| 04:00 | ✓ | 12% | 24135m | 17% | 43% | -8° |
| 05:00 | ✕ | 2.2% | 24135m | 0% | 43% | -14° |
| 06:00 | ✕ | 2.1% | 24135m | 0% | 43% | -17° |
| 07:00 | ✕ | 2.1% | 24135m | 0% | 43% | -19° |
| 08:00 | ✕ | 1.7% | 24135m | 0% | 43% | -18° |
| 09:00 | ✕ | 1.7% | 24135m | 0% | 43% | -14° |
| 10:00 | ✕ | 0% | 24134m | 0% | 43% | -9° |
| 11:00 | ✕ | 0.9% | 24135m | 0% | 43% | -2.1° |
| 12:00 | ✕ | 3% | 24135m | 0% | 43% | 5.9° |
| 13:00 | ✕ | 35% | 24135m | 0% | 43% | 15° |
| 14:00 | ✕ | 32% | 24134m | 0% | 43% | 24° |
| 15:00 | ✕ | 44% | 24135m | 0% | 43% | 34° |
| 16:00 | ✕ | 33% | 24135m | 0% | 43% | 44° |
| 17:00 | ✕ | 28% | 24134m | 0% | 43% | 54° |
| 18:00 | ✕ | 4.9% | 24135m | 0% | 43% | 62° |
| 19:00 | ✕ | 2.8% | 24134m | 0% | 43% | 67° |
| 20:00 | ✕ | 10% | 24134m | 0% | 43% | 67° |
| 21:00 | ✕ | 21% | 6022m | 0% | 43% | 61° |
| 22:00 | ✓ | 16% | 24134m | 0% | 43% | 53° |
| 23:00 | ✓ | 17% | 24134m | 0% | 43% | 43° |
| Fri, Apr 24 | ||||||
| 24:00 | ✓ | 19% | 24135m | 0% | 43% | 33° |
| 01:00 | ✓ | 2.3% | 24135m | 0% | 43% | 23° |
| 02:00 | ✓ | 2.2% | 24135m | 0% | 54% | 13° |
| 03:00 | ✓ | 30% | 24135m | 0% | 54% | 4.1° |
| 04:00 | ✓ | 58% | 24135m | 0% | 54% | -4.4° |
| 05:00 | ✕ | 87% | 24135m | 0% | 54% | -12° |
| 06:00 | ✕ | 84% | 24135m | 0% | 54% | -17° |
| 07:00 | ✕ | 82% | 24135m | 0% | 54% | -21° |
| 08:00 | ✕ | 80% | 24135m | 0% | 54% | -23° |
| 09:00 | ✕ | 66% | 24135m | 0% | 54% | -21° |
| 10:00 | ✕ | 52% | 24135m | 0% | 54% | -18° |
| 11:00 | ✕ | 38% | 24135m | 0% | 54% | -12° |
| 12:00 | ✕ | 27% | 24135m | 0% | 54% | -5° |
| 13:00 | ✕ | 16% | 24135m | 0% | 54% | 3.4° |
| 14:00 | ✕ | 5% | 24135m | 0% | 54% | 13° |
| 15:00 | ✕ | 21% | 24135m | 0% | 54% | 22° |
| 16:00 | ✕ | 37% | 24135m | 0% | 54% | 32° |
| 17:00 | ✕ | 53% | 24135m | 0% | 54% | 42° |
| 18:00 | ✕ | 37% | 24135m | 0% | 54% | 51° |
| 19:00 | ✕ | 21% | 24135m | 0% | 54% | 58° |
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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