Top Aurora Forecast App to Track the Northern Lights in Real-Time

2026 -2027 season has already started strong. If seeing the Northern Lights is on your bucket list, Hello Aurora is the only app you'll need to make it happen.

Why Hello Aurora?

Hello aurora is the ultimate Northern Lights app to help you plan, watch and get real-time aurora alerts so you'll not miss the lights again. More than 3 hundred thousands of user are registered on the app and has over 26 thousands aurora spotted reported last year. Below are the key unique features:

• Real-time aurora forecast
• Historical solar rotation and community sightings
• Northern Lights alerts
• Real-time community aurora spotting
• Ultimate aurora map includes cloud coverage, sightings location and aurora oval
• and many more

This aurora tracker app is trusted by aurora hunters worldwide, used by both locals and professional guides. In this guide, we'll break down why Hello Aurora is the best ad-free tool for Northern Lights hunters and how it can help you see this once-in-a-lifetime experience.

"It is very reliable compared to other apps I used and I love all the information it has. The feature of being able to post pictures and see real-time pics from others is amazing." — Hello Aurora user

Download Hello Aurora on App Store or Play Store

Real-time aurora forecast

Hello Aurora helps users see the Northern Lights by using real-time data from scientific magnetometer stations across the Arctic. Since 2020, we have used data from multiple space agencies and automatically selects the magnetometer station closest to your location for aurora predictions.

This real-time forecast updates every few minutes, giving you the most current and accurate aurora forecast available.

Why real-time data matters for aurora viewing

Most other aurora apps rely on the Kp index, an average 3 hours based value taken from multiple location around the globe, even in some non-aurora places. Giving it measure the global number it provide non real-time and inaccuracy for Northern Lights viewing. The Kp index provides average regional predictions rather than real-time conditions, and aurora activity changes rapidly throughout the night. Strong, spectacular aurora displays can occur even when the Kp index shows low activity levels, meaning users relying on this metrics often miss incredible viewing opportunities.

Use real-time data instead of KP index

Real-time forecast updates every few minutes from the closest magnetometers near you so you can get the latest aurora activity as it happens, not hours-old predictions

Aurora strength, explained simply

On Hello Aurora, the main number you'll see is aurora strength. Think of it as your go or no-go signal. No raw satellite charts, no guesswork, just one number that tells you how likely the Northern Lights are to be visible right now, updated every few minutes.

The Northern Lights happen when charged particles from the sun hit Earth's magnetic field. This makes the field vibrate, bend and fluctuate. Magnetometers near you pick up these fluctuations and record them in a unit called nanoteslas (nT). The bigger the fluctuation, the more intense the display.

• Drops sharply, around -150 nT: a substorm is happening. The lights are likely dancing right now. The lower it goes, the wilder and brighter the show.
• Spikes up, around +150 nT: the aurora is charging up. Get your camera ready, a display is often just minutes away.
• Hovers near zero, around 5 nT: the skies are quiet for now. Time to grab a warm drink and wait.

Solar wind data: Bz and Bt explained

According to the NOAA Space Weather Prediction Center, solar wind magnetic field data is tracked using Bt, the total field strength, and Bz, its north-south direction. When Bz points south (a negative value), solar wind connects more easily with Earth's magnetic field. This raises the chance of visible aurora.

Historical records

At Hello Aurora, we focus on real-time metrics instead. We track live local magnetometer stations, Interplanetary Magnetic Field (IMF) direction (specifically the southward Bz angle), and Real-Time Solar Wind (RTSW) from the NOAA Space Weather Prediction Center.

However, live metrics only tell you what is happening right now. To predict what happens next, you need real context. That is where historical activity and sightings transforms your forecast.

27-day solar rotations and historical trends

The sun spins in a full circle roughly every 27 days. Active sunspots that produce solar wind often last through a full rotation. If a sunspot caused an aurora 27 days ago, that same region might point toward Earth again today and trigger a new show.

• 27 Days Guide: We compare today's solar activity against historical ground data from the same night last month. This helps predict possible chance and peak hours for your location.
• Six years of data: We review six seasons of past activity for your area. This helps forecast potential sightings based on long-term local trends.

Power of 100,000+ real ground sightings

Space weather models estimate potential activity. Real reports tell you if the sky is actually active right now. We tracks over 100,000 user reports and 70,000+ aurora photos from 33 countries.

• Smart notifications: When local conditions suggest a high chance of activity, our app alerts nearby users.
• Live ground proof: Seeing a Moment posted nearby suggests the lights might be breaking through the clouds in your area.

Plan your trip with 6+ years of seasonal data

If you are booking a trip months in advance, short-term space weather models cannot help you. We solved this by scoring our 6-year archive into a comprehensive Seasonal Outlook.

• Historical scoring: We rate each week of the year based on past space weather patterns and real user sightings.
• Data-driven booking: Instead of relying on local folklore, you can pick the exact week of the year that has historically delivered the highest Northern Lights activity for your destination.

By combining 27-day solar cycles, 6 years of past data, and real-time Moment reports from users, Hello Aurora helps you predict the best times to look up.

Aurora Alerts

Timing is everything when it comes to aurora chasing. With Hello Aurora you'll get push notification of:

• Substorm notifications: receive instant alerts the moment when the substorm is expanding at in the Northern Lights country and when there is a chance of seeing bright aurora
• Aurora spotted alerts: instant alerts when other users spot the Northern Lights near you, verified by real people on the ground
• Bz alerts: set a custom threshold and get notified the moment Bz drops low enough to favor aurora, so you don't have to watch the data yourself

Whether you're in Iceland, Norway, Finland, Sweden, Canada, or even Germany or Switzerland, Hello Aurora will let you know when to look up.

Aurora spotted: community tracking

Aurora hunting doesn't have to be difficult. With Hello Aurora, you can:

• Let other people know when the aurora is visible, and get alerts when someone else sees it
• Upload real-time aurora photos
• Add your location and the aurora's intensity so others know exactly where to look
• Browse photos from other users around the world in Moments

Hello Aurora creates a global, community-powered aurora feed. Users inspire and support each other, helping everyone avoid missing the lights. Our users report aurora sightings on average around 19,000 times a year.

Travelling to Norway? See the most popular Northern Lights locations.

Not in the Arctic? You can still follow the Aurora

Even if you're not in an aurora zone, Hello Aurora lets you set a custom alert location and get updates from anywhere in the world. This is perfect for:

• Virtual Northern Lights fans
• Planning a future trip
• Following aurora activity across the globe
• Browsing live photos from real aurora zones without stepping outside

Easy to understand forecasts

One of the biggest frustrations with chasing the Northern Lights is complicated data. Many hunters don't know how to read an aurora forecast. On Hello Aurora, we translate scientific data like Aurora strength, solar wind and Bz into simple, easy-to-read text. Reading an aurora forecast shouldn't be for professionals only.

Built-in cloud coverage

Cloud cover is one of the biggest enemies of a Northern Lights hunt. You don't need to jump between sources. Just check the cloud coverage map and you'll know if the sky is clear before heading out. With the 2026 August update, Hello Aurora provides cloud coverage for total and low clouds across all the countries where the Northern Lights are visible.

Get your Aurora Passport

Pro users can easily track their aurora stats with the Aurora Passport. See how many auroras you have spotted, and store your aurora photos on your profile.

Quick summary

Hello Aurora is built for real-time Northern Lights hunting, not slow, generalized forecasts. It uses live data, including Aurora Strength, Bz and Solar Density, refreshed every few minutes instead of every few hours. You get instant substorm and spotting alerts from a global community, plus built-in cloud cover so you know exactly when and where to look up. Download Hello Aurora and never miss the lights again.

Frequently asked questions

Q: What is the best app to track the Northern Lights in real-time?
A: Hello Aurora tracks the Northern Lights using real-time data updated every few minutes, instead of relying only on the slower Kp index. It combines live forecast, substorm alerts, and community spotting in one app.

Q: Is Hello Aurora free to use?
A: Yes. Hello Aurora's core features, including real-time forecast, alerts, and community spotting, are free. A Pro plan adds extra features like the Aurora Passport and custom notifications and unlimited aurora spotting.

Q: Does Hello Aurora work outside the Nordic countries?
A: Yes. While Hello Aurora focuses on Iceland, Norway, Sweden, and Finland, you can set your alert location anywhere in the world and follow aurora activity globally.

Q: How is Hello Aurora different from apps that only show the Kp index?
A: The Kp index updates every 3 hours and averages activity across the whole globe. Hello Aurora updates every few minutes using your nearest magnetometer station and solar wind data, so it reflects what's happening right now, not hours ago.

Q: What is Aurora Strength and why does it matter for aurora viewing?
A: Aurora strength is based on your nearest ground magnetometer, which detects fluctuations in Earth's magnetic field caused by solar activity and measures them in nanoteslas (nT). A sharp drop, around -150 nT, means a substorm is active and the lights are likely visible now. Near zero, around 5 nT, means quiet skies.