Northern lights tonight in Vienna

-Kp
Chance tonight
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Kp needed to see the aurora low on the northern horizon (estimate): 8.5
Look north, away from city lights, ideally between 10 pm and 2 am.

Source: NOAA SWPC · GFZ Helmholtz Centre for Geosciences · Updated: -

3-day Kp index forecast

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Kp < 5Kp 5-6Kp 7+Kp needed to see the aurora low on the northern horizon: 8.5

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FAQ

What Kp index do you need to see the aurora in Vienna?

In our approximate model the aurora may appear low on the northern horizon in Vienna at a Kp of about 8.5 or higher. With a higher Kp it is brighter and reaches higher in the sky.

What time should I look?

Usually between 10 pm and 2 am local time, on a clear night, away from city lights. Look north.

Can you see the aurora with the naked eye?

During weaker activity it often shows up mainly on phone or camera photos (long exposure). During strong geomagnetic storms it is visible to the naked eye.

Geomagnetic latitude (approx.): 47.5°

How we estimate the chance: we compare NOAA's Kp forecast with an approximate aurora visibility boundary for the city's geomagnetic latitude. It is an estimate, not a guarantee - clouds and light pollution also decide whether you will see it.