Aurora tonight in Hobart

Can you see the aurora australis from Hobart?

The southern lights sit over the magnetic pole the same way the northern lights do, which means Hobart looks south for them — and is subject to exactly the same Kp index that aurora watchers in the Arctic follow.

Hobart needs Kp 6 and is Australia's aurora capital — the only Australian city with a realistic chance of seeing the southern lights. Tasmania's position in the Southern Ocean means cold fronts pass through constantly, and those same fronts clear the sky afterwards, so the pattern here is a storm night followed by a genuinely transparent sky.

Country

Australia

Magnetic latitude

-42.9°S

Geographic latitude

42.88°

Aurora threshold

Kp 6

Light pollution

Bortle 6

Deep-dark nights / yr

365

Sun at solar midnight

70.6° below horizon

Midnight sun

none

When to look: the Hobart aurora season

Every night of the year at Hobart reaches full astronomical darkness, so nothing on the calendar rules a month out. What you are choosing between is the weather and how long the dark window lasts: the southern winter offers the longest nights, but the geomagnetic forecast matters far more than the date.

Daylight is not a limiting factor at Hobart: the sun gets 70.6° below the horizon on the darkest night of the year, and there is no stretch of the calendar when the sky fails to go dark. Everything then comes down to cloud and geomagnetic activity.

Where to go in Hobart

Look south over the water from the Derwent estuary or the beaches south of the city; there is nothing between Hobart and Antarctica to block the view.

Direction matters as much as darkness. The display will be over the magnetic pole, which from Hobart means the southern sky — so pick a viewpoint with nothing between you and that horizon, and put any streetlight behind you. Tonight's "best window" figure above is the first hour where cloud falls below about 40% inside this latitude's dark period.

What Kp do you need in Hobart?

Here is what each Kp value would actually put in Hobart's sky — the row that matters is the one at Kp 6, which is where this city's magnetic latitude of -42.9° places its threshold:

Two things have to line up for Hobart: the planetary index has to reach about Kp 6, and the local sky has to be clear. Kp is a three-hour planetary average, so a display can start and fade inside one interval, and short substorm bursts routinely outperform the headline number. When the answer above says MAYBE, that usually means the geomagnetic side is fine and cloud is the question.

How tonight's answer is calculated for Hobart

The score above is built from five weighted factors, each using Hobart's own figures rather than a regional default: Kp against a local threshold of 6 (35%), cloud cover averaged across the dark hours at -42.88°, 147.33° (25%), moon illumination (15%), this latitude's astronomical darkness window (15%) and Bortle 6 light pollution (10%). How the score is built, where the numbers come from and where the method can go wrong are all set out on our methodology page. There is nothing to install and nothing to sign up for: the calculation runs in your browser against NOAA and Open-Meteo. The only third parties are anonymous analytics and Google's ad script — our privacy page lists what each one does.