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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
pristinedarkskies weather icon
Next opportunity
Excellent Dark Skies (pristine)
Mount Cook
Today · 02:00–03:00 · 1h window
Medium confidence
67%
🌛Moon Altitude-6.3°
☁️Total Cloud Coverage6.1%
pristinedarkskies weather icon
Good Dark Skies
Mount Cook
Today · 05:00–06:00
🌛Moon Altitude:-35.2°
Medium
pristinedarkskies weather icon
Pristine Dark Skies (pristine)
Mount Cook
Wed, May 27 · 03:00–06:17
🌛Moon Altitude:-22-6.3°
Medium

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72-hour requirements breakdown

What passed or failed, hour by hour
6matching hours in the next 80 hoursJump to next match
OR 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°
Sun, May 24
16:00✕97%24134m0%61%22°
17:00✕5%24135m0%61%30°
18:00✓79%24134m0%61%36°
19:00✓97%24134m0%61%39°
20:00✓100%24134m0%61%40°
21:00✓100%24134m0%61%37°
22:00✓79%24135m0%61%31°
23:00✓70%24134m0%61%23°
Mon, May 25
24:00✓100%24135m0%61%14°
01:00✓100%24135m0%61%3.9°
02:00✓6.1%24135m0%61%-6.3°
03:00✓100%24134m0%61%-16°
04:00✓42%24134m0%61%-26°
05:00✓20%24134m0%61%-35°
06:00✓32%24134m0%61%-42°
07:00✕80%24135m0%61%-47°
08:00✕73%24134m0%61%-48°
09:00✕94%24135m0%61%-46°
10:00✕95%24134m0%61%-40°
11:00✕60%24135m0%61%-31°
12:00✕100%24135m0%71%-22°
13:00✕100%24135m0%71%-12°
14:00✕100%24135m0%71%-1.2°
15:00✕100%24135m0%71%9.4°
16:00✕100%24134m0%71%20°
17:00✕100%24134m0%71%29°
18:00✓100%24134m0%71%37°
19:00✓100%24135m0%71%43°
20:00✓100%24134m0%71%46°
21:00✓100%24135m0%71%45°
22:00✓100%24135m0%71%41°
23:00✓100%24134m0%71%34°
Tue, May 26
24:00✓100%24135m0%71%25°
01:00✓100%24134m4.3%71%15°
02:00✓100%24134m8.5%71%5.3°
03:00✓100%24134m13%71%-5°
04:00✓100%24134m42%71%-15°
05:00✓100%24135m71%71%-24°
06:00✓100%24134m100%71%-32°
07:00✕78%24135m75%71%-38°
08:00✕97%24134m49%71%-42°
09:00✕100%24135m24%71%-42°
10:00✕100%24134m28%71%-38°
11:00✕100%24134m33%71%-32°
12:00✕98%24135m37%80%-24°
13:00✕100%24134m25%80%-14°
14:00✕100%24135m12%80%-4.3°
15:00✕100%24134m0%80%6.3°
16:00✕89%24134m0%80%17°
17:00✕52%24134m0%80%27°
18:00✓69%24135m0%80%37°
19:00✓65%24134m0%80%45°
20:00✓61%24135m0%80%50°
21:00✓62%24134m0%80%52°
22:00✓89%24135m0%80%50°
23:00✓71%24134m0%80%44°
Wed, May 27
24:00✓55%24134m0%80%36°
01:00✓51%24134m0%80%27°
02:00✓30%24135m0%80%17°
03:00✓10%24135m0%80%6.3°
04:00✓0.1%24134m0%80%-3.8°
05:00✓0%24135m0%80%-13°
06:00✓0%24134m0%80%-22°
07:00✕33%24134m0%80%-29°
08:00✕67%24135m0%80%-34°
09:00✕100%24135m0%80%-36°
10:00✕90%24135m0%80%-35°
11:00✕80%24135m0%80%-31°
12:00✕70%24135m0%87%-25°
13:00✕75%24135m0.3%87%-17°
14:00✕80%24135m0.61%87%-7.1°
15:00✕85%24135m0.91%87%3°
16:00✕80%24135m0.61%87%13°
17:00✕76%24135m0.3%87%24°
18:00✓72%24135m0%87%34°
19:00✓72%24135m0%87%44°
20:00✓72%24135m0%87%52°
21:00✓72%24135m0%87%57°
22:00✓50%24135m17%87%58°
23:00✓27%24135m33%87%54°
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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