Will I See Aurora? — Live Aurora Forecast Iceland
Real-time aurora forecast for Iceland. Live 0–100 likelihood score combining Kp index, solar wind, cloud cover, and darkness. Updated every 5 minutes.
How We Forecast
We combine real-time NOAA space weather data (Kp index, Bz magnetic component, Bt field strength, and solar wind speed) with Open-Meteo cloud cover forecasts across Iceland. The likelihood score weighs space weather conditions, local sky clarity, and darkness to give you one simple answer.
Space Weather Indicators
- Kp Index – Planetary geomagnetic activity index (0–9). Kp 3+ means aurora is possible in Iceland; Kp 5+ produces vivid displays.
- Bz Component – North-south interplanetary magnetic field in nanotesla. Negative (southward) Bz opens Earth's magnetosphere to solar wind, fueling aurora.
- Solar Wind Speed – Measured in km/s from NOAA DSCOVR satellite. Speeds above 400 km/s increase auroral intensity.
- Bt (Total Field Strength) – Total interplanetary magnetic field in nT. Higher values mean more energy available for aurora.
- Hemispheric Power – Total energy input to the northern hemisphere aurora in gigawatts.
- Dst Index – Disturbance Storm Time index measuring geomagnetic storm intensity.
- Darkness – Aurora requires dark skies (September–April in Iceland).
- Moon Phase – New moon is ideal; full moon washes out faint aurora.
Best Viewing Spots in Iceland
Top aurora viewing locations away from light pollution: Þingvellir National Park, Vík, Jökulsárlón Glacier Lagoon, Stokksnes, Goðafoss Waterfall, Ásbyrgi Canyon, Akureyri, and the Westfjords. Each location shows real-time cloud cover.
Cloud Cover by Region
Real-time cloud cover for Icelandic regions: Reykjavík (Southwest), Akureyri (North), Egilsstaðir (East), Ísafjörður (Westfjords), and Vík (South). Clear skies are essential for aurora viewing.
15-Hour Aurora Forecast
Interactive hourly slider showing aurora likelihood for the next 15 hours. Each hour combines Kp index, Bz, solar wind speed, regional cloud cover, and darkness into a single 0–100 score. Updated every 5 minutes from live NOAA DSCOVR satellite data and Open-Meteo weather models.
Frequently Asked Questions
When is the best time to see the northern lights in Iceland? The aurora season runs from September to mid-April. Best months are October, November, February, and March.
What Kp index do I need? Iceland sits at ~65°N, so aurora can be visible with Kp 2-3 if skies are clear and Bz is southward. Kp 5+ produces vivid displays.
Best places to see northern lights? Away from Reykjavík: Þingvellir National Park, Vik, Jökulsárlón glacier lagoon, Akureyri, and the Westfjords.
Does cloud cover affect aurora? Yes, clouds completely block the view. You need clear or mostly clear skies.
What does Bz mean? When Bz is negative (southward), Earth's magnetosphere opens to solar wind particles, fueling aurora.
Does moonlight affect aurora? A bright moon washes out faint displays. New moon gives the darkest skies.
Northern Lights Guides
In-depth articles covering aurora photography tips, best viewing seasons, understanding space weather data, and planning your northern lights trip to Iceland.
Built by Slice of Iceland. Data: NOAA Space Weather Prediction Center, DSCOVR satellite, Open-Meteo. Updated every 5 minutes.