Aurora australis Te Anau tonight
Te Anau sits at 57°S magnetic latitude at the edge of Fiordland National Park - Kp 3 is the threshold. The southern foreshore of Lake Te Anau gives Bortle Class 2 sky within 2 km of town. Lake Manapouri (22 km south) is inside the national park at Bortle Class 1–2. Te Anau is the practical base for the Milford Road dark sky corridor: drive north to the Eglinton Valley (50 km) or Milford Sound (120 km) when conditions are clear. Face south. Peak season: May to August.
Aurora visibility - Te Anau
Unlikely tonight
Kp 1 is well below the Kp 3 threshold needed for aurora to be visible from Te Anau.
Current Kp
1
of 9
7-day outlook for Te Anau
Today
3 Jun
Tomorrow
4 Jun
Fri
5 Jun
Sat
6 Jun
Sun
7 Jun
Mon
8 Jun
Tue
9 Jun
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
auroratonight.space
What Kp is needed here?
Te Anau sits at a magnetic latitude of approximately 57°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 3 before the auroral oval expands far enough north to be visible from here.
At Kp 3, visibility is possible from Te Anau but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.
Best dark sky sites near Te Anau
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark southern horizon within reach.
Lake Te Anau southern foreshore
Get directions ↗The southern foreshore of Lake Te Anau faces south-southwest across the lake toward the Murchison and Stuart Mountains. At night, Te Anau township is small enough that the southern and western sky is largely unaffected by light pollution. Drive or walk south of the township to the boat ramp area or the lakeshore reserve. The lake surface provides a clear, open foreground with no obstructions to the south. Bortle Class 2 conditions from the southern foreshore - the mountains to the west and northwest create a dark silhouette rather than a glow. At Kp 3, aurora australis appears above the southern mountains reflected in the lake.
Lake Manapouri, Fiordland
Get directions ↗Lake Manapouri is the deepest lake in New Zealand and lies inside Fiordland National Park. The lake edge at Manapouri village (22 km south of Te Anau) gives Bortle Class 1-2 conditions with open southern sky across the lake toward the Cathedral Mountains. No significant settlement exists south of Manapouri, and the national park wilderness extends in all directions except east. The lake surface faces southwest toward the Wilmot Pass and Doubtful Sound. Aurora australis at Kp 3 appears above the southern and southwestern mountain skyline. Drive south from Te Anau on SH95, then east at Manapouri township to the lakefront.
Eglinton Valley, Milford Road
Get directions ↗The Eglinton Valley on the Milford Road gives one of the most accessible Bortle Class 1-2 dark sky positions in New Zealand on a sealed road. The flat valley floor between mountain ranges provides a wide southern horizon and excellent sky darkness. Mirror Lakes (60 km from Te Anau) reflect the sky when calm. The valley is sheltered enough to be clear when the coasts are clouded. Pull off at any of the river flats or the Mirror Lakes car park. Aurora australis appears to the south down the valley at Kp 3. This is the same dark sky corridor as Milford Sound but 60-70 km closer to Te Anau.
Best time to see the aurora australis in Te Anau
Te Anau's aurora australis season runs from April through August, centred on the southern winter when nights are longest and darkest. The equinox months of March and September bring a boost in geomagnetic activity. Summer months bring too much twilight for aurora to show at this latitude.
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.
October through February brings persistent twilight that washes out the aurora australis. Strong events during these months remain invisible because the sky never gets dark enough.
Other New Zealand aurora forecasts
← New Zealand overviewCompare nearby locations
Up to 4 locations
How often does aurora appear in Te Anau?
Average nights per month when Kp reaches 3+ - based on 15 years of data
Best month
March
Average aurora nights per year
135
Kp threshold
3+
Based on 15 years of geomagnetic data (2010-2024). Shows nights when Kp reached 3+ at any point in the day - cloud cover and local darkness not included. Months with no astronomical darkness show zero.
Kp data: GFZ German Research Centre for Geosciences, CC BY 4.0
Plan your trip to Te Anau
Based on 15 years of geomagnetic data
March
13.6
avg aurora nights
Stay 3+ nights for 80% chance
September
13.2
avg aurora nights
Stay 3+ nights for 80% chance
October
12.8
avg aurora nights
Stay 4+ nights for 80% chance
Best window
The August to October window averages 38 aurora nights - the strongest consecutive stretch of the year.
How long to stay
For your best chance in March, plan at least 3 nights.
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.
Related pages
Aurora Australis New Zealand
New Zealand aurora hub with current Kp status.
Aurora Australis Milford Sound
Milford Sound - Bortle Class 1-2, Kp 3, high cloud frequency.
Aurora Australis Fiordland
Fiordland overview - Doubtful Sound, Kp 3.
Aurora Australis Queenstown
Queenstown - Remarkables dark sky, 170 km northeast.
What Is the Kp Index?
How Kp 3 produces aurora australis at 57°S magnetic.
Common questions
Aurora australis from Te Anau - Lake Manapouri, Eglinton Valley, and using Te Anau as a Fiordland base.