How dark is the sky at Arkaroola Wilderness Sanctuary?

Modelled zenith brightness from the 2024 World Atlas of Artificial Night Sky Brightness puts Arkaroola Wilderness Sanctuary at about 22 mag/arcsec², roughly Bortle class 1. That is an approximation derived from satellite data, not a field measurement; it is certified by DarkSky International as an International Dark Sky Sanctuary.

How far is Arkaroola Wilderness Sanctuary from Adelaide?

About 520.1 km in a straight line, heading north from Adelaide. Using a 1.3 road-detour factor and staged average speeds that is roughly 676.1 km and 7.6 h of driving — an estimate, not a routed drive time.

When is the next moon-free dark window at Arkaroola Wilderness Sanctuary?

The next stretch of essentially moon-free dark hours runs Nov 2–14 (13 nights), computed from Moon phase and altitude with Skyfield and JPL DE440s. Cloud cannot be known that far ahead; the live seven-night forecast on this page shows real cloud cover once a window is close.

What is the clearest month at Arkaroola Wilderness Sanctuary?

Over 2021–2025, February (92%), August (91%), April (89%) had the highest share of nights with astronomical darkness that stayed clear (weighted cloud cover ≤ 20%); across the year it was 83%. ERA5 reanalysis via Open-Meteo — historical frequency, not a forecast.

Australia · International Dark Sky Sanctuary

Stargazing at Arkaroola Wilderness Sanctuary

How dark this certified sky really is, how far it is from the nearest cities, a live seven-night forecast for the site itself, and the moon-free nights worth planning around. Official DarkSky International page ↗

Sky at the siteBortle ≈ 122 mag/arcsec² · 2024 atlas

From Adelaide~7.6 h520.1 km straight-line · head north · estimated

Next moon-free windowNov 2–1413 nights · moon geometry only

How dark the sky really is at Arkaroola Wilderness Sanctuary

Modelled zenith brightness at the site's coordinates is 22 mag/arcsec², which maps to roughly Bortle 1 (what each level means). This is an approximation from the 2024 light-pollution atlas, not a field measurement — and it describes the single point DarkSky lists, not the darkest corner of the sanctuary.

This is about as dark as the atlas gets: at Bortle 1 the Milky Way casts visible shadows on moonless nights, the zodiacal light is obvious and the faintest deep-sky objects are within reach of modest optics. Your own light — and the Moon — will be the limiting factor, not the site.

Getting to Arkaroola Wilderness Sanctuary

The nearest cities we publish guides for, with the direction to head and a rough drive estimate.

From Adelaide
head north · 520.1 km straight-line · ≈676.1 km by road · ≈7.6 h · weekend trip

Estimated from straight-line distance x a 1.3 road-detour factor and staged average speeds (40 km/h leaving town, 70 km/h regional, 95 km/h highway). It is a rough guide, not a routed drive time.

The next seven nights at Arkaroola Wilderness Sanctuary

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Plan the next 90 days at Arkaroola Wilderness Sanctuary

Moon-free dark windows are astronomy — computable years ahead. Cloud is not: beyond the 16-night forecast nobody knows the weather, and we won't pretend to. What five years of reanalysis can say is how often each month's nights actually stayed clear here.

Nov 2–1413 moon-free nights77% of November nights here stayed clear (2021–2025)
Dec 2–1514 moon-free nights87% of December nights here stayed clear (2021–2025)
Jan 1–1414 moon-free nights81% of January nights here stayed clear (2021–2025)

Clear nights by month, 2021–2025

Jan81%
Feb92%
Mar83%
Apr89%
May81%
Jun73%
Jul77%
Aug91%
Sep86%
Oct79%
Nov77%
Dec87%

Clearest months historically: February (92%), August (91%), April (89%); across the year 83% of nights with astronomical darkness stayed clear.

"Clear" = weighted cloud cover (low 0.5 / mid 0.3 / high 0.2) ≤ 20% across the night's astronomical darkness. ERA5 reanalysis via Open-Meteo Archive, 2021–2025 (CC BY 4.0) — historical frequency, not a forecast. Once a window comes within 16 nights, the live forecast above takes over.

Put Arkaroola Wilderness Sanctuary's dark-sky nights on your calendar

Every month has a stretch of nights when the Moon leaves the dark hours at Arkaroola Wilderness Sanctuary essentially moon-free. Subscribe once and each window lands in your own calendar, about a year ahead — no account, no email.

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moon & darkness geometry only — cloud can't be known this far out; check the live forecast above when a window gets close

Questions people ask about Arkaroola Wilderness Sanctuary

How dark is the sky at Arkaroola Wilderness Sanctuary?: Modelled zenith brightness from the 2024 World Atlas of Artificial Night Sky Brightness puts Arkaroola Wilderness Sanctuary at about 22 mag/arcsec², roughly Bortle class 1. That is an approximation derived from satellite data, not a field measurement; it is certified by DarkSky International as an International Dark Sky Sanctuary.
How far is Arkaroola Wilderness Sanctuary from Adelaide?: About 520.1 km in a straight line, heading north from Adelaide. Using a 1.3 road-detour factor and staged average speeds that is roughly 676.1 km and 7.6 h of driving — an estimate, not a routed drive time.
When is the next moon-free dark window at Arkaroola Wilderness Sanctuary?: The next stretch of essentially moon-free dark hours runs Nov 2–14 (13 nights), computed from Moon phase and altitude with Skyfield and JPL DE440s. Cloud cannot be known that far ahead; the live seven-night forecast on this page shows real cloud cover once a window is close.
What is the clearest month at Arkaroola Wilderness Sanctuary?: Over 2021–2025, February (92%), August (91%), April (89%) had the highest share of nights with astronomical darkness that stayed clear (weighted cloud cover ≤ 20%); across the year it was 83%. ERA5 reanalysis via Open-Meteo — historical frequency, not a forecast.

Place name and coordinates: DarkSky International (reviewed 2026-07-15, data 2026-10-13). Light pollution: David Lorenz, World Atlas 2024 (EOG VIIRS, CC BY 4.0), approximate. Cloud: Open-Meteo.com (CC BY 4.0). Moon and darkness geometry: Skyfield + JPL DE440s, computed locally. Drive times are estimates, not routes.