Live aurora forecast

Northern lights in Sydney tonight

New South Wales, Australia · 42° magnetic latitude · Kp 7–8 threshold

Aurora visibility · Sydney
1/9
Unlikely tonight

Kp 1 is well below the Kp 7–8 threshold needed for aurora to be visible from Sydney.

QuietStormExtreme
Threshold
Kp 7–8
Magnetic latitude
~42°S
Bz ↓ south
- nT
Solar wind
- km/s
Density
- p/cm³
Cloud
-
Conditions right now: - Kp + Bz + solar wind + cloud + moon

Updated: 20 Jul, 12:57 UTC

7-day outlook for Sydney

Today
20 Jul
1
Quiet
Tomorrow
21 Jul
3
Quiet
Wed
22 Jul
3
Quiet
Thu
23 Jul
3
Quiet
Fri
24 Jul
3
Quiet
Sat
25 Jul
3
Quiet
Sun
26 Jul
3
Quiet

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

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What Kp is needed here?

Sydney sits at a magnetic latitude of approximately 42°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 7–8 before the auroral oval expands far enough north to be visible from here.

At Kp 7–8, visibility is possible from Sydney 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 Sydney

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

Royal National Park - Garie Beach and Era

Get directions ↗
Bortle 3 60 km / 1 hr from Sydney CBD

The Royal National Park south of Sydney faces the Tasman Sea with undeveloped coastline. Garie Beach and Era campsite give south-facing ocean access at only 60 km from the CBD via the Princes Highway and Sir Bertram Stevens Drive. The cliffs and beaches face south-southeast across the Tasman. The park interior is Bortle 3-4 but the coastal clifftop positions reduce the northern light dome considerably. At 34.2°S geographic (~43°S magnetic), this is the best accessible position south of Sydney for coast-facing aurora photography. Drive to Garie Beach, park at the road end, and face south along the coast.

Blue Mountains - Mount York and Hartley area

Get directions ↗
Bortle 3 110 km / 1 hr 30 min from Sydney

The Blue Mountains plateau at 1000 m gives Bortle 3 sky above the valley haze that often hangs over the Sydney Basin. The elevated plateau faces south across the Kanangra-Boyd wilderness. Mount York near Mount Victoria and the Bell area give the darkest accessible positions. At 33.5°S geographic the latitude is lower than the coast, but the altitude reduces effective horizon depth. The ridge above Hartley Vale faces south across the Great Dividing Range. About 110 km from Sydney via the Great Western Highway. Practical for overnight stays when a G4-G5 storm is forecast.

Southern Highlands - Fitzroy Falls and Morton NP

Get directions ↗
Bortle 3 130 km / 1 hr 45 min from Sydney

The Southern Highlands at 800 m sit south of Sydney with Bortle 3 sky and south-facing ridge positions above the escarpment. Fitzroy Falls in Morton National Park faces south across the Shoalhaven River gorge country. The plateau road along the escarpment gives positions facing south with minimal light domes. At 34.6°S geographic (~45°S magnetic), this is marginally farther south than the Royal National Park coast. About 130 km from Sydney via the Hume Highway and Moss Vale. A practical overnight destination during major storm events.

When to go

Best time to see the aurora australis in Sydney

At 42°S magnetic latitude, Sydney 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

Sydney

Australia

Unlikely
Kp 1 need Kp 7-8
Checking darkness…
Melbourne

Australia

Unlikely
Kp 1 need Kp 7-8
Checking darkness…
Tasmania

Australia

Unlikely
Kp 1 need Kp 5
Checking darkness…
From the community

Aurora photographs from Sydney

Real photos sourced from Wikimedia Commons.

Aurora over SydneyAurora over Sydney
Aurora over SydneyAurora over Sydney
Aurora over SydneyAurora over Sydney
Aurora over SydneyAurora over Sydney
Aurora over SydneyAurora over Sydney
Aurora over SydneyAurora over Sydney
Questions

Common questions about aurora in Sydney

Can you see aurora australis from Sydney?
Rarely, but it has happened during exceptional geomagnetic storms. Sydney at ~42°S magnetic latitude needs Kp 7-8 from a dark coastal site. The Royal National Park south coast gives the best accessible position. During the May 2024 G5 storm - the strongest in 20 years - aurora australis was photographed from Sydney's southern beaches and from coastal headlands in the Royal National Park. These conditions occur roughly once per decade.
What Kp is needed for aurora in Sydney?
Kp 7 from dark sites like Garie Beach in the Royal National Park. Kp 8-9 for aurora visible from Sydney's southern suburbs. At 42°S magnetic latitude, Sydney sits at the northern edge of what is reachable during major storms. The G5 storm of May 2024 demonstrated it is possible, but regular Kp 5-6 events produce nothing visible from Sydney. The practical approach is driving to Tasmania or coastal Victoria for any event below G4 intensity.
What is the best dark sky site near Sydney for aurora?
Garie Beach in the Royal National Park is the closest accessible south-facing position at 60 km from the CBD. The beach and clifftops face south-southeast across the Tasman Sea. The Southern Highlands at 130 km give higher elevation and marginally better southern position. For the most committed aurora chase within New South Wales, the south coast near Eden at 470 km from Sydney gives Bortle 2 sky and a genuine south-facing Tasman Sea horizon at 37°S geographic.
Has aurora ever been photographed from Sydney?
Yes, during the G5 storm of May 2024. Aurora australis was photographed from Maroubra, Cronulla, and the Royal National Park coastline. Long-exposure photography showed red and purple bands low on the southern horizon. This was the first widely reported aurora visible from Sydney since the Halloween storms of 2003. The current solar maximum (2024-2025) makes the near term more favourable for another marginal event.
When is the best season for aurora in Sydney?
September to April, with the September equinox being the most geomagnetically active period. Sydney has adequate darkness from April to September. Clear winter nights in May-August give long dark periods for photography when a major storm does arrive. The Southern Highlands and Blue Mountains are sometimes above cloud layers when the coast is overcast. Monitoring NOAA space weather alerts for G4-G5 watches and being ready to drive to a dark site gives the best prospect.
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