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Rule Dark Skies

Dark Skies Forecast for New Zealand

New Zealand, New Zealand

New Zealand astro forecast for Milky Way photography in the Aoraki Mackenzie Dark Sky Reserve around Lake Tekapo and Mount Cook.

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Pacific/Auckland

No opportunities in the next 14 days

See the blocker timeline below to understand which conditions are preventing matches.

New Zealand astro forecast for Milky Way photography in the Aoraki Mackenzie Dark Sky Reserve around Lake Tekapo and Mount Cook.

This rule looks for true astronomical night, cloud cover no higher than 20%, visibility of at least 12 km, precipitation probability no higher than 10%, and either Moon illumination no higher than 35% or Moon altitude no higher than 10°. It does not calculate Galactic Centre or Milky Way core altitude; check a sky planner for the subject's position.

This forecast evaluates astronomical darkness, cloud cover, visibility, precipitation risk, and moonlight in the Aoraki Mackenzie International Dark Sky Reserve. Lake Tekapo's shore, Lake Pukaki, and the Hooker Valley place the southern Milky Way above glacial water and the silhouette of Aoraki/Mount Cook. The rule does not calculate Galactic Centre altitude, so use a sky planner to confirm its position for a composition.

Dark-sky status does not guarantee clear weather: Southern Alps cloud can build quickly, wind can ripple lake reflections, and a bright Moon washes out faint Milky Way structure. The Church of the Good Shepherd has lighting restrictions and heavy visitor pressure, so obey barriers and avoid torches that spoil others' exposures. Alpine nights are cold even outside winter, reducing battery life.

What's blocking opportunities

95-hour view of conditions preventing matches across 2 locations

Top 5 blocking conditions across 2 of 2 locations
Some blocked
Most blocked
22 Sat
23 Sun
24 Mon
25 Tue
26 Wed
12
18
24
06
12
18
24
06
12
18
24
06
12
18
24
Moon Illumination (≤ 35.0%)
95% blocked
Precipitation Chance (≤ 10.0%)
91% blocked
Total Cloud Coverage (≤ 20.0%)
72% blocked
Moon Altitude (≤ 10.0°)
59% blocked
Visibility (≥ 12000.0m)
50% blocked
How to read: Each row shows when a condition blocks opportunities. Stronger red means more locations are affected. These are the top 5 conditions preventing matches across the 95-hour forecast.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

Forecast generated

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