Live aurora forecast

Northern lights in Cradle Mountain tonight

Central Highlands, Tasmania, Australia · 54° magnetic latitude · Kp 5 threshold

Aurora visibility · Cradle Mountain
1/9
Unlikely tonight

Kp 1 is well below the Kp 5 threshold needed for aurora to be visible from Cradle Mountain.

QuietStormExtreme
Threshold
Kp 5
Magnetic latitude
~54°S
Bz ↓ south
- nT
Solar wind
- km/s
Density
- p/cm³
Cloud
-
Conditions right now: - Kp + Bz + solar wind + cloud + moon

Updated: 3 Jul, 15:34 UTC

7-day outlook for Cradle Mountain

Today
3 Jul
1
Quiet
Tomorrow
4 Jul
3
Quiet
Sun
5 Jul
3
Quiet
Mon
6 Jul
3
Quiet
Tue
7 Jul
3
Quiet
Wed
8 Jul
3
Quiet
Thu
9 Jul
3
Quiet

Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.

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What Kp is needed here?

Cradle Mountain sits at a magnetic latitude of approximately 54°S. The Kp index - a global measure of geomagnetic activity on a scale from 0 (quiet) to 9 (extreme storm), updated every 3 hours - needs to reach Kp 5 before the auroral oval expands far enough north to be visible from here.

At Kp 5, visibility is possible from Cradle Mountain but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.

Plan your viewing

Best dark sky sites near Cradle Mountain

Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark southern horizon within reach.

Dove Lake boatshed

Get directions ↗
Bortle Class 1–2 - Exceptional dark sky 3 km from Cradle Mountain Lodge - approximately 15 minute walk

The wooden boatshed on the north shore of Dove Lake is the benchmark foreground for Cradle Mountain aurora photography. The lake faces south-southwest across still dark water, with the serrated Cradle Mountain ridge reflected when conditions are calm. No artificial light reaches this position from any direction. Bortle Class 1-2 conditions across the lake. The track from the car park is marked and manageable in darkness with a headtorch. In winter the track may have ice - wear appropriate footwear.

Ronny Creek boardwalk

Get directions ↗
Bortle Class 2 - Excellent dark sky 1 km from Cradle Mountain visitor centre - approximately 15 minute walk

The alpine moorland boardwalk at Ronny Creek faces south across a flat button-grass plain with Cradle Mountain behind. The open sky to the south is unobstructed by any ridge. At night the wetland foreground gives reflective pools under a completely dark sky. The boardwalk itself has no lighting. The visitor centre generates minimal glow but it is behind you when facing south. A sheltered alternative to Dove Lake when wind is strong.

Barn Bluff saddle

Get directions ↗
Bortle Class 1 - Exceptional dark sky 6 km from Dove Lake - approximately 3 hour hike

A high saddle between Cradle Mountain and Barn Bluff at approximately 1,200 m, accessible via the Overland Track. Requires a full day's hiking from the car park - not suitable for a same-night aurora chase unless camping on the Overland Track. The elevated position gives a wider southern horizon than Dove Lake and complete 360° dark sky wilderness. The Overland Track is well marked. Used primarily by multi-day walkers who have clear nights during their circuit.

When to go

Best time to see the aurora australis in Cradle Mountain

At 54°S magnetic latitude, Cradle Mountain sits at the outer edge of regular aurora australis territory. Only the southern winter months, May through July, occasionally bring storms powerful enough to push the oval this far north. Outside this window, there is insufficient darkness for aurora to be visible.

Activity peaks around the March and September equinoxes, when Earth's magnetic field geometry is most favourable for coupling with the solar wind. These windows produce the strongest aurora australis events of the year for observers at this latitude.

Outside May through July, twilight prevents aurora visibility even during significant geomagnetic storms. The season is short, but equinox months on either side of winter can extend it when timing is favourable.

Up to 8 locations

Cradle Mountain

Australia

Unlikely
Kp 1 need Kp 5
Checking darkness…
Hobart

Australia

Unlikely
Kp 1 need Kp 5-6
Checking darkness…
Launceston

Australia

Unlikely
Kp 1 need Kp 5-6
Checking darkness…
The odds

How often does the aurora appear in Cradle Mountain?

Average nights per month the Kp reached Cradle Mountain's threshold of 5+, from 15 years of geomagnetic data (2010–2024).

1.2Jan
1.3Feb
1.6Mar
1.4Apr
1.2May
1Jun
1.2Jul
1.4Aug
1.5Sep
1.5Oct
1.2Nov
1.1Dec

Counts the Kp 5+ threshold only - cloud cover and local darkness are not included.
Kp data: GFZ German Research Centre for Geosciences, CC BY 4.0

Make it happen

Plan your trip to Cradle Mountain

Based on 15 years of geomagnetic data (2010–2024)

1st
March
1.6
avg aurora nights
Requires an extended stay
2nd
September
1.5
avg aurora nights
Requires an extended stay
3rd
October
1.5
avg aurora nights
Requires an extended stay

Best window

The August to October window averages 4 aurora nights - the strongest consecutive stretch of the year.

How long to stay

Aurora at this latitude requires patience - allow as many nights as possible during March.

Aurora activity peaks at the March and September equinoxes in both hemispheres. This is driven by the angle of Earth's magnetic field relative to the solar wind, not by local seasons. Winter months at this latitude offer longer dark nights for observing, but March and September average the highest number of aurora nights in the historical data.

From the community

Aurora photographs from Cradle Mountain

Real photos sourced from Wikimedia Commons.

Aurora over Cradle MountainAurora over Cradle Mountain
Aurora over Cradle MountainAurora over Cradle Mountain
Aurora over Cradle MountainAurora over Cradle Mountain
Aurora over Cradle MountainAurora over Cradle Mountain
Aurora over Cradle MountainAurora over Cradle Mountain
Aurora over Cradle MountainAurora over Cradle Mountain
Questions

Common questions about aurora in Cradle Mountain

Can you see aurora australis from Cradle Mountain?
Yes. Cradle Mountain sits at 54°S magnetic latitude in the Tasmanian Wilderness World Heritage Area, giving it one of Australia's lowest aurora thresholds. Kp 5 is enough from Dove Lake and Ronny Creek on a clear night. Aurora australis has been photographed from Dove Lake multiple times during the current solar cycle. The Bortle Class 1-2 sky means faint aurora structure is visible that would be washed out closer to any town.
What Kp is needed at Cradle Mountain?
Kp 5 from dark sky positions such as Dove Lake and Ronny Creek. At 54°S magnetic latitude, Cradle Mountain is equivalent to Hobart for aurora threshold - both sit within range of the auroral oval during moderate G1-G2 storms. Kp 5 events occur several times per year during solar maximum. The advantage over Hobart is the Bortle Class 1-2 sky, which reveals structure invisible from suburban locations.
How do I get to Dove Lake for aurora photography?
Drive to the Dove Lake car park, approximately 8 km from Cradle Mountain Lodge via the shuttle bus route (or your own vehicle during permitted hours). From the car park, the track to the boatshed is approximately 1 km and takes around 15 minutes on foot. The track is marked and passable in darkness with a headtorch. In winter, ice can form on the track - wear boots with grip. Check National Park access conditions before travelling, as road closures apply at certain times.
How does Cradle Mountain compare to Hobart for aurora?
Both sit at the same 54°S magnetic latitude and share the same Kp 5 threshold. The key difference is sky darkness. Hobart is an urban area with significant light pollution - South Arm and Cockle Creek are the dark sky options, requiring a drive of 35-90 minutes. Cradle Mountain is surrounded by Bortle Class 1-2 sky with no nearby settlements. For aurora photography where faint structure and colour matter, Cradle Mountain has a clear advantage. For convenience and last-minute aurora chases, Hobart wins.
When is the best time to visit Cradle Mountain for aurora australis?
May to August gives the longest dark nights - Cradle Mountain at 41.6°S geographic latitude has around 12-13 hours of darkness in mid-winter. June and July are the coldest months, with temperatures dropping well below zero at 934 m elevation. The September equinox is statistically the most geomagnetically active period. Cradle Mountain has a high rainfall and cloud rate year-round - check multi-day forecasts before making the trip. The Central Highlands can have better sky clarity than the west coast.
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