Live aurora forecast

Northern lights in Kaikōura tonight

Marlborough, South Island, New Zealand · 52° magnetic latitude · Kp 5 threshold

Aurora visibility · Kaikōura
1/9
Unlikely tonight

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

QuietStormExtreme
Threshold
Kp 5
Magnetic latitude
~52°S
Bz ↓ south
- nT
Solar wind
- km/s
Density
- p/cm³
Cloud
-
Conditions right now: - Kp + Bz + solar wind + cloud + moon

Updated: 20 Jul, 12:59 UTC

7-day outlook for Kaikōura

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.

auroratonight.space

What Kp is needed here?

Kaikōura sits at a magnetic latitude of approximately 52°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 Kaikōura 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 Kaikōura

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

Kaikōura Peninsula Walkway, south end

Get directions ↗
Bortle Class 3 - Rural sky 3 km from Kaikōura town centre - approximately 15 minute walk or 5 minute drive

The southern tip of the Kaikōura Peninsula gives the most southerly ocean-facing position accessible without a long drive. The walkway along the peninsula coastline faces south over the Pacific Ocean. Kaikōura's light dome is to the northwest, leaving the southeast and south sky largely unaffected. At Kp 5, aurora australis appears on the southern horizon from the rocky point at the walkway's southern end. The peninsula restricts some eastern and western horizon angles, but the south-facing ocean view is the most important direction. The walkway is accessible at night - wear appropriate footwear on the rough coastal track.

Ohau Point seal colony area

Get directions ↗
Bortle Class 2-3 - Excellent dark sky 25 km north of Kaikōura - approximately 20 minute drive

A coastal headland 25 km north of Kaikōura, facing east over the Pacific Ocean and southeast toward the open South Pacific. The fur seal colony is at the base of the cliff. The road pull-off gives a clear ocean horizon to the east and southeast. No settlement within 20 km to the north or east. Bortle Class 2-3 conditions from the headland. At Kp 5, aurora australis appears on the southeastern and southern horizon. The combination of ocean exposure and dark sky makes this a better aurora position than the peninsula within Kaikōura itself. Drive north on SH1 from Kaikōura; Ohau Point is clearly signed.

Clarence River mouth and coast

Get directions ↗
Bortle Class 2 - Excellent dark sky 35 km north of Kaikōura - approximately 30 minute drive

The Clarence River reaches the Pacific Ocean at a remote, exposed beach 35 km north of Kaikōura. The beach faces east and southeast over open ocean with the Kaikōura Ranges behind. No settlement to the south or east. Bortle Class 2 conditions. The Seaward Kaikōura Range rises behind, creating a dramatic skyline to the west while the ocean horizon to the east and southeast is fully open. At Kp 5, aurora australis appears on the southeastern horizon and may extend toward south-southeast on stronger nights. Access via SH1 north then a short unsealed section - standard vehicle in dry conditions.

When to go

Best time to see the aurora australis in Kaikōura

At 52°S magnetic latitude, Kaikōura 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

Kaikōura

New Zealand

Unlikely
Kp 1 need Kp 5
Checking darkness…
Christchurch

New Zealand

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

New Zealand

Unlikely
Kp 1 need Kp 4
Checking darkness…
The odds

How often does the aurora appear in Kaikōura?

Average nights per month the Kp reached Kaikōura'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 Kaikōura

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 Kaikōura

Real photos sourced from Wikimedia Commons.

Aurora over KaikōuraAurora over Kaikōura
Aurora over KaikōuraAurora over Kaikōura
Aurora over KaikōuraAurora over Kaikōura
Aurora over KaikōuraAurora over Kaikōura
Aurora over KaikōuraAurora over Kaikōura
Aurora over KaikōuraAurora over Kaikōura
Questions

Common questions about aurora in Kaikōura

Can you see aurora australis from Kaikōura?
Yes, but only during significant geomagnetic storms. Kaikōura sits at 52°S magnetic latitude on the Marlborough coast and needs Kp 5 for aurora australis - the same requirement as Christchurch. The advantage over Christchurch is sky darkness: Kaikōura is a small coastal town and positions like Ohau Point (25 km north) and the Clarence River mouth (35 km north) give Bortle Class 2-3 dark sky that Christchurch cannot match. Kp 5 events occur several times per year during solar maximum.
What Kp is needed for aurora at Kaikōura?
Kp 5 from south-facing positions like the Kaikōura Peninsula, Ohau Point, and the Clarence River coast. At 52°S magnetic latitude - which is north of Christchurch (55°S) - Kaikōura requires more geomagnetic activity than the cities further south. Aurora australis at Kp 5 is a moderate G1 storm event. The dark sky around Kaikōura means faint aurora is detectable here at Kp 5 where it might be missed from Christchurch's suburban sky, even though the thresholds are similar.
Where are the best dark sky sites near Kaikōura?
Ohau Point (25 km north) gives Bortle Class 2-3 from the seal colony headland, facing east and southeast over open ocean. The Clarence River mouth (35 km north) gives Bortle Class 2 on an exposed east-facing beach with the Kaikōura Ranges as backdrop. The Kaikōura Peninsula southern tip gives a convenient but moderately light-affected position within town. For dedicated aurora nights at Kp 5, drive north to Ohau Point or Clarence River rather than staying on the peninsula.
Is Kaikōura worth visiting specifically for aurora?
As a combined destination - yes. Kaikōura has whale watching, dolphin swimming, and seal encounters during the day, and reasonable dark sky positions at night. For a pure aurora trip from Christchurch, Christchurch to Lake Tekapo (Kp 3, Bortle Class 1) is more productive than Christchurch to Kaikōura (Kp 5, Bortle Class 2-3). If already visiting Kaikōura for other reasons, check the Kp forecast - during Kp 5+ events, Ohau Point gives a genuine aurora australis view from a dramatic coastal position.
When is the best time for aurora at Kaikōura?
May to August for the longest dark nights. Kaikōura at 42.4°S geographic gets around 13 hours of darkness in mid-winter. The east coast of the South Island is generally clearer than the west coast, and the Kaikōura area benefits from the lee effect of the Seaward Kaikōura Range during northwest wind events. The September equinox is statistically the most geomagnetically active period. Monitor Kp forecasts during G1+ storm watches - Kp 5 events are the minimum requirement here.
Photograph the aurora

Recommended gear

Tested picks for capturing the aurora on long, cold nights.

As an Amazon Associate, Aurora Tonight earns from qualifying purchases. Affiliate links never influence the forecast or which gear is recommended.

Aurora Tonight

Aurora Tonight

Add to your home screen for instant aurora alerts

Add to your home screen

Tap then Add to Home Screen for instant aurora alerts