Live Activity: Aurora data updated
Northern Lights Forecast for Tonight:
Aurora Tracker
Check tonight's aurora forecast with live Kp index, cloud cover, moon phase, and the best viewing window for your area.
Tonight, tomorrow, this week — know your aurora viewing windows
Global Kp Index
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Solar Wind
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km/s
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p/cm³
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Bz Field
-- nT
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Kp Index — 27-Day Forecast
Kp 5+ Kp 3-4 Kp 1-2
Popular forecast hubs right now: aurora forecast Rovaniemi, aurora forecast Tromso, aurora forecast Stockholm, aurora forecast Helsinki, northern lights forecast New York, aurora forecast Ontario, and aurora forecast Sweden.
Need the broad view first? Aurora borealis forecast, northern lights tonight, live aurora tracker, and aurora app comparisons.
Never Miss Aurora Again — Download Free App
Get instant alerts when aurora appears tonight. Track Kp index, clouds, and moon phase in real-time. 72-hour forecast shows best viewing times. Works worldwide.
Why AuroraMe is Different
5 Reality Factors Combined
Kp index + cloud coverage + moon brightness + darkness + magnetic latitude — all analyzed together. No more "aurora possible" alerts during cloudy skies or full moon.
Location-Specific Forecasts
Tromsø needs KP ≥ 1.0, Edinburgh needs KP ≥ 6.0. Thresholds derived from 3+ years of historical data (8,768+ measurements). Results match actual aurora frequency: 200 nights/year in Arctic, 10 nights/year in mid-latitudes.
Smart Notifications with Quiet Hours
Push alerts arrive only during actual viewing hours: clear skies, dark conditions, sufficient activity. Quiet hours protection (customizable 11 PM - 7 AM). 30-minute cooldown prevents spam.
Multi-Timeframe Intelligence
Now: Real-time status updating every 5-10 minutes. Tonight: 12-72 hour detailed forecast. Trip Planner: Best Days (27-day forecast) and Best Month (11-year historical analysis).
AuroraMe vs Other Forecast Apps
See how we compare to other aurora forecast services
| Feature | AuroraMe ★ Best | My Aurora Forecast | Hello Aurora | NOAA |
|---|---|---|---|---|
| Coverage | Full support Worldwide + Custom Coordinates | Limited Limited regions | Limited Major cities only | Limited Global overview only |
| Forecast | Full support 72-hour + Trip Planner (Best Days & Best Month) | Not available Current conditions only | Limited 24-hour forecast | Limited 30-minute nowcast |
| Historical Data | Full support 11 Years Statistical Model | Not available None | Limited Basic statistics | Limited Raw data archives |
| Push Notifications | Full support 10 types: Predictive + Storm + Bz early warning | Limited Basic alerts | Limited No quiet hours | Limited Email only |
| Reality Factors | Full support 5 Combined (Kp + Clouds + Moon + Darkness + MLAT) | Limited Kp index only | Limited Kp + Clouds | Limited Space weather only |
| Interface | Super Intuitive | Complex | Cluttered | Technical/Scientific |
Coverage
AuroraMe ★
Full support Worldwide + Custom Coordinates
My Aurora Forecast
Limited Limited regions
Hello Aurora
Limited Major cities only
NOAA
Limited Global overview only
Forecast
AuroraMe ★
Full support 72-hour + Trip Planner (Best Days & Best Month)
My Aurora Forecast
Not available Current conditions only
Hello Aurora
Limited 24-hour forecast
NOAA
Limited 30-minute nowcast
Historical Data
AuroraMe ★
Full support 11 Years Statistical Model
My Aurora Forecast
Not available None
Hello Aurora
Limited Basic statistics
NOAA
Limited Raw data archives
Push Notifications
AuroraMe ★
Full support 10 types: Predictive + Storm + Bz early warning
My Aurora Forecast
Limited Basic alerts
Hello Aurora
Limited No quiet hours
NOAA
Limited Email only
Reality Factors
AuroraMe ★
Full support 5 Combined (Kp + Clouds + Moon + Darkness + MLAT)
My Aurora Forecast
Limited Kp index only
Hello Aurora
Limited Kp + Clouds
NOAA
Limited Space weather only
Interface
AuroraMe ★
Super Intuitive
My Aurora Forecast
Complex
Hello Aurora
Cluttered
NOAA
Technical/Scientific
Want a head-to-head breakdown? Browse every AuroraMe vs competitor comparison or start with AuroraMe vs My Aurora Forecast.
Aurora Destinations by Country
🇺🇸
United States
304 locations 🇨🇦
Canada
73 locations 🇷🇺
Russia
35 locations 🇳🇴
Norway
29 locations 🇫🇮
Finland
25 locations 🇬🇧
United Kingdom
23 locations 🇬🇱
Greenland
20 locations 🇸🇪
Sweden
18 locations 🇩🇰
Denmark
16 locations 🇯🇵
Japan
14 locations 🇮🇸
Iceland
12 locations 🇱🇹
Lithuania
12 locations 🇳🇱
Netherlands
12 locations 🇩🇪
Germany
12 locations 🇵🇱
Poland
12 locations 🇧🇾
Belarus
12 locationsShow all 53 countries
🇫🇷
France
12 locations 🇺🇦
Ukraine
12 locations 🇮🇹
Italy
12 locations 🇪🇸
Spain
12 locations 🇨🇱
Chile
12 locations 🇿🇦
South Africa
12 locations 🇳🇿
New Zealand
11 locations 🇦🇺
Australia
11 locations 🇦🇷
Argentina
11 locations 🇮🇪
Ireland
10 locations 🇪🇪
Estonia
10 locations 🇱🇻
Latvia
10 locations 🇧🇪
Belgium
10 locations 🇱🇺
Luxembourg
10 locations 🇨🇿
Czech Republic
10 locations 🇨🇭
Switzerland
10 locations 🇸🇰
Slovakia
10 locations 🇦🇹
Austria
10 locations 🇭🇺
Hungary
10 locations 🇸🇮
Slovenia
10 locations 🇭🇷
Croatia
10 locations 🇷🇴
Romania
10 locations 🇵🇹
Portugal
10 locations 🇷🇸
Serbia
10 locations 🇧🇦
Bosnia and Herzegovina
10 locations 🇫🇰
Falkland Islands
10 locations 🇲🇪
Montenegro
10 locations 🇧🇬
Bulgaria
10 locations 🇦🇱
Albania
10 locations 🇲🇰
North Macedonia
10 locations 🇲🇳
Mongolia
10 locations 🇬🇷
Greece
10 locations 🇲🇹
Malta
10 locations 🇨🇾
Cyprus
10 locations 🇺🇾
Uruguay
10 locations 🇧🇷
Brazil
10 locations 🇬🇸
South Georgia
9 locationsFrequently Asked Questions
What is the Kp index?
The Kp index measures geomagnetic activity on a scale from 0 to 9, published by NOAA SWPC every 3 hours. Higher Kp means a larger auroral oval and aurora visible at lower latitudes. Kp 3+ is visible in northern Scandinavia, Kp 5+ reaches Scotland and northern US states, Kp 7+ can reach central Europe.
Can I see aurora tonight?
Aurora visibility depends on 5 factors: Kp index (geomagnetic activity), cloud cover, moon phase, hours of darkness, and your magnetic latitude. All five must align — even strong Kp activity is invisible behind clouds or during twilight. Check the forecast for your city to see if conditions align tonight.
What causes the northern lights?
Aurora borealis occurs when charged particles from the solar wind enter Earth's magnetosphere and collide with atmospheric gases. Oxygen produces green light (90–150 km altitude) and red light (above 200 km), while nitrogen creates purple and blue hues. Coronal mass ejections (CMEs) from the Sun trigger the strongest displays.
How does aurora forecasting work?
AuroraMe uses a 5-factor prediction model: real-time Kp index from NOAA SWPC, local cloud cover forecasts, moon phase and illumination, hours of darkness at your location, and magnetic latitude (which determines your minimum Kp threshold). These factors are combined into a single visibility status updated every 15 minutes.
When is the best time to see the northern lights?
The best season is September through March in the northern hemisphere, with peak activity around the equinoxes (September-October, February-March) due to the Russell-McPherron effect. The best hours are 10 PM to 2 AM local time, when geomagnetic substorms peak. Solar Cycle 25 is near its maximum in 2025-2026, making this period exceptionally active.
What Kp level do I need for my location?
Your required Kp depends on magnetic latitude. The formula is roughly: Required Kp = (66 - Magnetic Latitude) / 2. For example, Tromsø (67.4° MLAT) needs just Kp 1, Edinburgh (58.2° MLAT) needs Kp 4, and London (53.4° MLAT) needs Kp 6. Check any city page for the exact Kp threshold calculated from its magnetic latitude.