Moderate Activity 🌒 3% Updated live

Aurora Australis Forecast for
Stewart Island Tonight

Current Southern Lights (Aurora Australis) conditions for Stewart Island, Southland, New Zealand. Latitude 47°S · AACGM-v2 magnetic latitude 54.4°S.

Quick Summary: The estimated Southern Lights outlook for Stewart Island peaks at 0% over the next 24 hours. No suitable viewing window.

Aurora forecast

0%

Estimated

Highest estimate · next 24 hours

Viewing window

No suitable viewing window

Pacific/Auckland

Kp index

4

Moderate

Planetary geomagnetic activity

Cloud cover

99%

Overcast

Current sky visibility

Aurora

Tonight's Verdict

Low aurora probability in Stewart Island tonight. Check back tomorrow for updated conditions.

Hourly Forecast · Estimated

01
01:00 — 0%
02:00 — 0%
03:00 — 0%
04:00 — 0%
05:00 — 0%
06:00 — 0%
07
07:00 — 0%
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10:00 — 0%
11:00 — 0%
12:00 — 0%
13
13:00 — 0%
14:00 — 0%
15:00 — 0%
16:00 — 0%
17:00 — 0%
18:00 — 0%
19
19:00 — 0%
20:00 — 0%
21:00 — 0%
22:00 — 0%
23:00 — 0%
00:00 — 0%
01:00 UTC07:00 UTC13:00 UTC19:00 UTC00:00 UTC
Time (UTC)Estimated (%)
2026-10-13T01:00:00.000Z0%
2026-10-13T02:00:00.000Z0%
2026-10-13T03:00:00.000Z0%
2026-10-13T04:00:00.000Z0%
2026-10-13T05:00:00.000Z0%
2026-10-13T06:00:00.000Z0%
2026-10-13T07:00:00.000Z0%
2026-10-13T08:00:00.000Z0%
2026-10-13T09:00:00.000Z0%
2026-10-13T10:00:00.000Z0%
2026-10-13T11:00:00.000Z0%
2026-10-13T12:00:00.000Z0%
2026-10-13T13:00:00.000Z0%
2026-10-13T14:00:00.000Z0%
2026-10-13T15:00:00.000Z0%
2026-10-13T16:00:00.000Z0%
2026-10-13T17:00:00.000Z0%
2026-10-13T18:00:00.000Z0%
2026-10-13T19:00:00.000Z0%
2026-10-13T20:00:00.000Z0%
2026-10-13T21:00:00.000Z0%
2026-10-13T22:00:00.000Z0%
2026-10-13T23:00:00.000Z0%
2026-10-14T00:00:00.000Z0%
How to read this forecast

The next 24 hours use calculated local darkness and a retained aurora activity heuristic. They are not a measured or statistically calibrated chance of seeing aurora. Aggregate cloud cover is held constant unless a timed weather forecast is available.

Generated 2026-10-13T00:05:28.711Z. Kp: fresh · observation 2026-10-12T21:00:00.000Z. Cloud: fresh · cache refresh 2026-10-12T22:16:08.681+00:00. Overall model: estimated.

Window: No suitable viewing window. A dash marks a missing input; zero means the model found no visibility under the supplied conditions.

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Oct 14

Kp Index •••
Probability •••
Cloud Cover •••

Oct 15

Kp Index •••
Probability •••
Cloud Cover •••

Oct 16

Kp Index •••
Probability •••
Cloud Cover •••

About Aurora Viewing in Stewart Island

Stewart Island, New Zealand, is at 47°S. Southern Lights are also called Aurora Australis. Its verified magnetic latitude is 54.4°S; Kp 5–7 is an approximate screening range, not a visibility probability. Even favourable activity can be hidden by clouds or daylight. Find a dark, open southern horizon and check the sky before travelling.

Follow forecasts, cloud maps and aurora alerts for Stewart Island in Aurora Hunt, then confirm darkness, local cloud and access before going outside.

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Frequently Asked Questions

Can you see the Southern Lights in Stewart Island?
Aurora Australis may be visible from Stewart Island when geomagnetic activity is strong, the sky is dark and clear, and the southern horizon is open. A Kp value near 5–7 is a useful guide for this location, not a guarantee.
What is the best season for the Southern Lights in Stewart Island?
The practical dark-sky season in Stewart Island runs from March through September, with the longest nights usually from May through August. Aurora can occur year-round whenever geomagnetic activity and darkness overlap.
Where should I look for Aurora Australis near Stewart Island?
Choose a dark site away from city lights with a wide, unobstructed view toward the southern horizon. Check cloud cover, moonlight and local access conditions before leaving.
What Kp index is needed in Stewart Island?
The Kp needed varies with magnetic latitude and storm geometry. Around Stewart Island, Kp 5–7 is a planning guide; the solar-wind direction, especially southward Bz, can change the actual result.
Do the equinoxes improve Southern Lights chances?
Geomagnetic activity can be more favorable around the March and September equinoxes, but there is no guaranteed equinox display. Darkness, clear skies and an active auroral oval must still coincide.

Nearby Aurora Destinations

Bluff

46.6°S View →

Awarua Plains

46.5°S View →

Otatara

46.4°S View →

Clifton

46.5°S View →

Kingswell

46.4°S View →

Kew

46.4°S View →

Never Miss the Aurora in Stewart Island

Keep aurora australis forecasts, cloud maps and aurora alerts for Stewart Island together in Aurora Hunt. Check the local sky before heading outside.

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