Rule
Dark Skies
Mount Cook - Dark Skies - New Zealand
Twizel, Canterbury, New Zealand
Moonless nights with crystal-clear skies for deep-sky photography
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Pacific/Auckland
Next opportunity
Pristine Dark Skies (pristine)
Mount Cook
Today · 19:52–24:00 · 4h window
Medium confidence
52%
🌛Moon Altitude-17.4-5.9°
☁️Total Cloud Coverage0-4.2%
Pristine Dark Skies (pristine)
Mount Cook
Thu, Apr 16 · 21:00–22:00
🌛Moon Altitude:-39.3°
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 Pacific/Auckland | 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° |
|---|---|---|---|---|---|---|
| Wed, Apr 8 | ||||||
| 17:00 | ✕ | 100% | 15795m | 68% | 66% | -17° |
| 18:00 | ✕ | 100% | 23190m | 82% | 66% | -17° |
| 19:00 | ✓ | 100% | 24135m | 39% | 66% | -14° |
| 20:00 | ✓ | 100% | 18896m | 39% | 66% | -9.2° |
| 21:00 | ✓ | 100% | 19419m | 39% | 66% | -2.6° |
| 22:00 | ✓ | 35% | 22415m | 53% | 66% | 5.4° |
| 23:00 | ✓ | 5.1% | 24135m | 67% | 66% | 14° |
| Thu, Apr 9 | ||||||
| 24:00 | ✓ | 11% | 24134m | 82% | 66% | 24° |
| 01:00 | ✓ | 29% | 24134m | 76% | 66% | 34° |
| 02:00 | ✓ | 49% | 18423m | 58% | 66% | 44° |
| 03:00 | ✓ | 98% | 18093m | 39% | 66% | 55° |
| 04:00 | ✓ | 100% | 18216m | 45% | 66% | 64° |
| 05:00 | ✓ | 100% | 18641m | 50% | 66% | 72° |
| 06:00 | ✕ | 100% | 22727m | 56% | 66% | 74° |
| 07:00 | ✕ | 6.7% | 23697m | 26% | 66% | 68° |
| 08:00 | ✕ | 7.4% | 23720m | 13% | 66% | 59° |
| 09:00 | ✕ | 30% | 24134m | 0% | 66% | 49° |
| 10:00 | ✕ | 20% | 24135m | 13% | 66% | 39° |
| 11:00 | ✕ | 1.2% | 24135m | 26% | 66% | 29° |
| 12:00 | ✕ | 2.2% | 24135m | 39% | 57% | 19° |
| 13:00 | ✕ | 5% | 24134m | 26% | 57% | 9.2° |
| 14:00 | ✕ | 10% | 24135m | 14% | 57% | 0.67° |
| 15:00 | ✕ | 8.8% | 24135m | 0.91% | 57% | -6.7° |
| 16:00 | ✕ | 11% | 24135m | 0.61% | 57% | -13° |
| 17:00 | ✕ | 5.6% | 24134m | 0.3% | 57% | -16° |
| 18:00 | ✕ | 5.6% | 24134m | 0% | 57% | -18° |
| 19:00 | ✓ | 4.2% | 24134m | 0% | 57% | -17° |
| 20:00 | ✓ | 2.7% | 24135m | 0% | 57% | -14° |
| 21:00 | ✓ | 1.4% | 24134m | 0% | 57% | -9.1° |
| 22:00 | ✓ | 0% | 24135m | 0% | 57% | -2.3° |
| 23:00 | ✓ | 0.2% | 24135m | 0% | 57% | 5.9° |
| Fri, Apr 10 | ||||||
| 24:00 | ✓ | 0.2% | 24135m | 0% | 57% | 15° |
| 01:00 | ✓ | 0.1% | 24135m | 0% | 57% | 25° |
| 02:00 | ✓ | 0% | 24134m | 0% | 57% | 35° |
| 03:00 | ✓ | 0% | 24135m | 0% | 57% | 45° |
| 04:00 | ✓ | 0% | 24134m | 0% | 57% | 55° |
| 05:00 | ✓ | 0% | 24134m | 0% | 57% | 65° |
| 06:00 | ✕ | 0% | 24135m | 0% | 57% | 71° |
| 07:00 | ✕ | 0% | 24135m | 0% | 57% | 72° |
| 08:00 | ✕ | 0% | 24134m | 0% | 57% | 66° |
| 09:00 | ✕ | 0% | 24134m | 0% | 57% | 57° |
| 10:00 | ✕ | 0.5% | 24135m | 0% | 57% | 47° |
| 11:00 | ✕ | 75% | 24134m | 0% | 57% | 36° |
| 12:00 | ✕ | 100% | 24135m | 0% | 47% | 26° |
| 13:00 | ✕ | 100% | 24134m | 0% | 47% | 16° |
| 14:00 | ✕ | 28% | 24134m | 0% | 47% | 6.5° |
| 15:00 | ✕ | 56% | 24135m | 0% | 47% | -2° |
| 16:00 | ✕ | 79% | 24134m | 0% | 47% | -9.4° |
| 17:00 | ✕ | 42% | 24134m | 0% | 47% | -15° |
| 18:00 | ✕ | 70% | 24135m | 0% | 47% | -19° |
| 19:00 | ✓ | 64% | 24134m | 0% | 47% | -20° |
| 20:00 | ✓ | 100% | 24134m | 0% | 47% | -19° |
| 21:00 | ✓ | 100% | 24135m | 0% | 47% | -16° |
| 22:00 | ✓ | 64% | 24135m | 0% | 47% | -10° |
| 23:00 | ✓ | 81% | 24134m | 0% | 47% | -2.9° |
| Sat, Apr 11 | ||||||
| 24:00 | ✓ | 80% | 24134m | 0% | 47% | 5.5° |
| 01:00 | ✓ | 46% | 24134m | 0% | 47% | 15° |
| 02:00 | ✓ | 30% | 24134m | 0% | 47% | 25° |
| 03:00 | ✓ | 37% | 24134m | 0% | 47% | 35° |
| 04:00 | ✓ | 37% | 24134m | 0% | 47% | 45° |
| 05:00 | ✓ | 100% | 24135m | 0% | 47% | 55° |
| 06:00 | ✕ | 100% | 24135m | 0% | 47% | 64° |
| 07:00 | ✕ | 100% | 24135m | 0% | 47% | 69° |
| 08:00 | ✕ | 100% | 24134m | 0% | 47% | 68° |
| 09:00 | ✕ | 100% | 24135m | 0% | 47% | 62° |
| 10:00 | ✕ | 100% | 24134m | 0% | 47% | 53° |
| 11:00 | ✕ | 100% | 24135m | 0% | 47% | 43° |
| 12:00 | ✕ | 100% | 24134m | 0% | 38% | 33° |
| 13:00 | ✕ | 100% | 24134m | 0% | 38% | 22° |
| 14:00 | ✕ | 100% | 24134m | 0% | 38% | 12° |
| 15:00 | ✕ | 100% | 24135m | 0% | 38% | 2.6° |
| 16:00 | ✕ | 100% | 24135m | 0% | 38% | -6° |
| 17:00 | ✕ | 100% | 24135m | 0% | 38% | -13° |
| 18:00 | ✕ | 100% | 24135m | 0% | 38% | -19° |
| 19:00 | ✓ | 100% | 24135m | 0% | 38% | -23° |
| 20:00 | ✓ | 100% | 24135m | 0% | 38% | -24° |
| 21:00 | ✓ | 100% | 24135m | 0% | 38% | -22° |
| 22:00 | ✓ | 100% | 24135m | 0% | 38% | -18° |
| 23:00 | ✓ | 100% | 24135m | 0% | 38% | -12° |
| Sun, Apr 12 | ||||||
| 24:00 | ✓ | 100% | 24135m | 0% | 38% | -4.2° |
| 01:00 | ✓ | 100% | 24135m | 0% | 38% | 4.6° |
| 02:00 | ✓ | 100% | 24135m | 0% | 38% | 14° |
| 03:00 | ✓ | 100% | 24135m | 0% | 38% | 24° |
| 04:00 | ✓ | 100% | 24135m | 17% | 38% | 35° |
| 05:00 | ✓ | 100% | 24135m | 33% | 38% | 45° |
| 06:00 | ✕ | 100% | 24135m | 50% | 38% | 54° |
| 07:00 | ✕ | 100% | 24135m | 67% | 38% | 62° |
| 08:00 | ✕ | 100% | 24135m | 83% | 38% | 66° |
| 09:00 | ✕ | 100% | 24135m | 100% | 38% | 64° |
| 10:00 | ✕ | 100% | 24135m | 100% | 38% | 57° |
| 11:00 | ✕ | 99% | 24135m | 100% | 38% | 48° |
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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