Live aurora forecast

Northern lights in Lake Tekapo tonight

Mackenzie Basin, South Island, New Zealand · 56° magnetic latitude · Kp 3–4 threshold

Aurora visibility · Lake Tekapo
1/9
Unlikely tonight

Kp 1 is well below the Kp 3–4 threshold needed for aurora to be visible from Lake Tekapo.

QuietStormExtreme
Threshold
Kp 3–4
Magnetic latitude
~56°S
Bz ↓ south
- nT
Solar wind
- km/s
Density
- p/cm³
Cloud
-
Conditions right now: - Kp + Bz + solar wind + cloud + moon

Updated: 3 Jul, 16:53 UTC

7-day outlook for Lake Tekapo

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

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

auroratonight.space

What Kp is needed here?

Lake Tekapo sits at a magnetic latitude of approximately 56°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 3–4 before the auroral oval expands far enough north to be visible from here.

At Kp 3–4, visibility is possible from Lake Tekapo 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 Lake Tekapo

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

Church of the Good Shepherd lakefront

Get directions ↗
Bortle Class 1–2 - Exceptional dark sky 0.5 km from Tekapo village - approximately 5 minute walk

The stone church on the southern shore of Lake Tekapo faces south across the lake. The building silhouette, the dark lake, and the open southern sky beyond are among the most reproduced aurora australis images in New Zealand. The reserve's dark sky designation keeps artificial light to the minimum required for safety. The lakefront here is Bortle Class 1-2 - comparable to the best observatory sites. The church is publicly accessible at all hours.

Mount John Observatory

Get directions ↗
Bortle Class 1 - Exceptional dark sky 2 km from Tekapo village - approximately 30 minute walk or 5 minute drive

University of Canterbury's research observatory at 1,029 m on the summit above the lake. Commercial dark sky tours are available through Earth and Sky New Zealand. The summit gives a 360° view with no nearby settlement lights - Bortle Class 1 from most directions. The southern horizon extends over the Mackenzie Basin to the distant Southern Alps. Star parties run by the observatory include aurora watch sessions during active periods.

Mackenzie Basin farmland

Get directions ↗
Bortle Class 2 - Excellent dark sky 10 km south of Lake Tekapo - approximately 15 minute drive

The flat tussock farmland south of the lake towards Twizel gives a completely unobstructed southern horizon. The basin floor at 700 m is above valley haze and the high, dry air (rain shadow of the Southern Alps) gives clear conditions more nights per week than almost anywhere in New Zealand. Pulling off the road onto a farm track gives a flat 360° dark sky with the Southern Alps lit on the horizon. One of the simplest dark sky positions accessible from Tekapo.

When to go

Best time to see the aurora australis in Lake Tekapo

Lake Tekapo'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.

Up to 8 locations

Lake Tekapo

New Zealand

Unlikely
Kp 1 need Kp 3-4
Checking darkness…
Queenstown

New Zealand

Unlikely
Kp 1 need Kp 4-5
Checking darkness…
Christchurch

New Zealand

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

How often does the aurora appear in Lake Tekapo?

Average nights per month the Kp reached Lake Tekapo's threshold of 3+, from 15 years of geomagnetic data (2010–2024).

10.2Jan
11.2Feb
13.6Mar
12.4Apr
10.7May
9Jun
10.1Jul
12.3Aug
13.2Sep
12.8Oct
10.3Nov
9.3Dec

Counts the Kp 3+ 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 Lake Tekapo

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

1st
March
13.6
avg aurora nights
Stay 3+ nights for 80% chance
2nd
September
13.2
avg aurora nights
Stay 3+ nights for 80% chance
3rd
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.

From the community

Aurora photographs from Lake Tekapo

Real photos sourced from Wikimedia Commons.

Aurora over Lake TekapoAurora over Lake Tekapo
Aurora over Lake TekapoAurora over Lake Tekapo
Aurora over Lake TekapoAurora over Lake Tekapo
Aurora over Lake TekapoAurora over Lake Tekapo
Aurora over Lake TekapoAurora over Lake Tekapo
Aurora over Lake TekapoAurora over Lake Tekapo
Questions

Common questions about aurora in Lake Tekapo

What is the Aoraki Mackenzie International Dark Sky Reserve?
The Aoraki Mackenzie International Dark Sky Reserve covers 4,300 km² of the Mackenzie Basin, including Lake Tekapo, Lake Pukaki, and the surrounding high country. It is the largest dark sky reserve in the southern hemisphere. The reserve designation requires all outdoor lighting within its boundaries to be shielded and directed downward, preserving the natural darkness of the night sky. Mount John Observatory, run by the University of Canterbury, sits at the centre of the reserve at 1,029 m elevation. The reserve was certified by the International Dark-Sky Association in 2012.
Can you photograph the Church of the Good Shepherd with aurora?
Yes. The Church of the Good Shepherd on the southern shore of Lake Tekapo is the most photographed aurora foreground in New Zealand. The stone building faces south across the lake, and when aurora australis is active the green arc rises directly behind and above it. The church sits at the edge of the lake with dark water in the foreground and no obstructions to the south. Bortle Class 1-2 darkness from the lakefront means even modest aurora events (Kp 3-4) produce a visible glow. The church is publicly accessible at all hours - no gate or restriction at night.
What Kp is needed at Lake Tekapo?
Kp 3-4 is sufficient for aurora australis at Lake Tekapo from dark sites. At 56°S magnetic latitude, Lake Tekapo sits within the auroral oval during moderate geomagnetic activity. The Bortle Class 1-2 darkness of the reserve means the aurora glow is visible even when it would be missed from a light-polluted town. From Mount John Observatory at 1,029 m, even faint aurora is detectable on active nights. Kp 5+ produces strong colour visible to the naked eye from the lakefront.
How does Lake Tekapo compare to Queenstown for aurora australis?
Lake Tekapo has a lower Kp threshold (Kp 3-4) than Queenstown (Kp 4-5) due to its darker skies and position in the Aoraki Mackenzie Dark Sky Reserve. Both sit at similar magnetic latitudes (around 56°S). The practical difference is that Lake Tekapo gets more aurora events per year simply because a lower threshold means more nights qualify. Queenstown has more accommodation options and a more accessible airport, but Lake Tekapo is the superior dedicated aurora location. The Mackenzie Basin also has lower cloud frequency than Queenstown's mountain terrain.
When is the best time to visit Lake Tekapo for aurora australis?
May to August for peak aurora season, with June and July giving the longest dark nights. Lake Tekapo at 44°S geographic latitude gets around 15 hours of darkness in mid-winter. The Mackenzie Basin is in the rain shadow of the Southern Alps, so it has more clear nights than much of the South Island - roughly 300 clear nights per year is cited for the area. The September equinox is statistically active for geomagnetic storms. Avoid the three days either side of full moon, which reduces aurora visibility from dark sites.
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