Rule
Dark Skies
Mürren - Dark Skies - Alps
Mürren, Bern, Switzerland
Moonless nights with crystal-clear skies for Milky Way shots
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/Zurich
Next opportunity
Dark Skies
Mürren
Tue, Jan 13 · 05:00–06:21 · 1h window
Medium confidence
48%
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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° |
|---|---|---|---|---|---|---|
| Sun, Jan 11 | ||||||
| 13:00 | ✕ | 0% | 69740m | 0% | 41% | -12° |
| 14:00 | ✕ | 0% | 71000m | 0% | 41% | -23° |
| 15:00 | ✕ | 0% | 73880m | 0% | 41% | -33° |
| 16:00 | ✕ | 0% | 66520m | 0% | 41% | -42° |
| 17:00 | ✕ | 0% | 76820m | 0% | 41% | -51° |
| 18:00 | ✓ | 25% | 77600m | 0% | 41% | -57° |
| 19:00 | ✓ | 100% | 77860m | 0% | 41% | -60° |
| 20:00 | ✓ | 100% | 79560m | 0% | 41% | -58° |
| 21:00 | ✓ | 100% | 79400m | 0% | 41% | -52° |
| 22:00 | ✓ | 100% | 78920m | 0% | 41% | -44° |
| 23:00 | ✓ | 100% | 78500m | 0% | 41% | -35° |
| Mon, Jan 12 | ||||||
| 24:00 | ✓ | 100% | 77420m | 0% | 41% | -25° |
| 01:00 | ✓ | 100% | 76400m | 0% | 33% | -15° |
| 02:00 | ✓ | 99% | 75020m | 3% | 33% | -5.5° |
| 03:00 | ✓ | 100% | 61540m | 10% | 33% | 3.4° |
| 04:00 | ✓ | 100% | 56980m | 45% | 33% | 11° |
| 05:00 | ✓ | 100% | 21240m | 75% | 33% | 18° |
| 06:00 | ✓ | 100% | 8720m | 73% | 33% | 22° |
| 07:00 | ✕ | 98% | 25900m | 38% | 33% | 24° |
| 08:00 | ✕ | 100% | 26880m | 48% | 33% | 24° |
| 09:00 | ✕ | 91% | 37300m | 33% | 33% | 21° |
| 10:00 | ✕ | 91% | 43900m | 40% | 33% | 16° |
| 11:00 | ✕ | 88% | 59220m | 35% | 33% | 8.8° |
| 12:00 | ✕ | 42% | 60500m | 45% | 33% | 0.57° |
| 13:00 | ✕ | 21% | 67680m | 33% | 33% | -8.6° |
| 14:00 | ✕ | 73% | 75320m | 13% | 33% | -18° |
| 15:00 | ✕ | 73% | 73340m | 18% | 33% | -28° |
| 16:00 | ✕ | 100% | 70080m | 18% | 33% | -39° |
| 17:00 | ✕ | 70% | 58180m | 8% | 33% | -48° |
| 18:00 | ✓ | 65% | 58700m | 5% | 33% | -57° |
| 19:00 | ✓ | 74% | 54060m | 3% | 33% | -63° |
| 20:00 | ✓ | 65% | 53600m | 0% | 33% | -64° |
| 21:00 | ✓ | 95% | 58140m | 0% | 33% | -61° |
| 22:00 | ✓ | 100% | 61940m | 0% | 33% | -54° |
| 23:00 | ✓ | 100% | 62680m | 0% | 33% | -45° |
| Tue, Jan 13 | ||||||
| 24:00 | ✓ | 79% | 65760m | 0% | 33% | -35° |
| 01:00 | ✓ | 40% | 67120m | 0% | 24% | -25° |
| 02:00 | ✓ | 88% | 69460m | 0% | 24% | -16° |
| 03:00 | ✓ | 100% | 70100m | 0% | 24% | -6.3° |
| 04:00 | ✓ | 37% | 69560m | 0% | 24% | 2.2° |
| 05:00 | ✓ | 3% | 69920m | 0% | 24% | 9.5° |
| 06:00 | ✓ | 9% | 72620m | 0% | 24% | 15° |
| 07:00 | ✕ | 49% | 73560m | 0% | 24% | 19° |
| 08:00 | ✕ | 57% | 75360m | 0% | 24% | 20° |
| 09:00 | ✕ | 56% | 76660m | 0% | 24% | 20° |
| 10:00 | ✕ | 83% | 77925m | 0% | 24% | 16° |
| 11:00 | ✕ | 89% | 77160m | 0% | 24% | 11° |
| 12:00 | ✕ | 12% | 72860m | 0% | 24% | 3.8° |
| 13:00 | ✕ | 39% | 71080m | 0% | 24% | -4.5° |
| 14:00 | ✕ | 51% | 64880m | 0% | 24% | -14° |
| 15:00 | ✕ | 59% | 57920m | 0% | 24% | -23° |
| 16:00 | ✕ | 73% | 66500m | 0% | 24% | -33° |
| 17:00 | ✕ | 79% | 77520m | 0% | 24% | -43° |
| 18:00 | ✓ | 69% | 76480m | 0% | 24% | -53° |
| 19:00 | ✓ | 53% | 76680m | 0% | 24% | -61° |
| 20:00 | ✓ | 77% | 77500m | 0% | 24% | -67° |
| 21:00 | ✓ | 69% | 78060m | 0% | 24% | -67° |
| 22:00 | ✓ | 41% | 77640m | 0% | 24% | -63° |
| 23:00 | ✓ | 87% | 77980m | 0% | 24% | -54° |
| Wed, Jan 14 | ||||||
| 24:00 | ✓ | 99% | 78480m | 0% | 24% | -45° |
| 01:00 | ✓ | 100% | 78240m | 0% | 16% | -35° |
| 02:00 | ✓ | 100% | 77700m | 0% | 16% | -25° |
| 03:00 | ✓ | 100% | 77320m | 0% | 16% | -16° |
| 04:00 | ✓ | 100% | 77280m | 0% | 16% | -6.9° |
| 05:00 | ✓ | 100% | 77660m | 0% | 16% | 1.2° |
| 06:00 | ✓ | 100% | 77200m | 0% | 16% | 8° |
| 07:00 | ✕ | 100% | 77620m | 0% | 16% | 13° |
| 08:00 | ✕ | 100% | 77720m | 1% | 16% | 16° |
| 09:00 | ✕ | 100% | 77060m | 2% | 16% | 17° |
| 10:00 | ✕ | 100% | 75640m | 4% | 16% | 16° |
| 11:00 | ✕ | 100% | 74960m | 6% | 16% | 12° |
| 12:00 | ✕ | 100% | 74640m | 9% | 16% | 7° |
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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