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Aurora borealis over Iceland

Northern lights

Northern Lights in Iceland: Everything You Need to Know

By Sterna Editorial Team, Editorial team

Aurora viewing isn't luck — it's planning. Here's the data, the timing, and the locations that maximise your chances on a single visit.

There's no adequate way to describe the Northern Lights to someone who hasn't seen them. Photos come close, but they miss the movement — the way the lights shift and ripple across the sky, appear from nothing, build in intensity, and then vanish just as suddenly.

Iceland is one of the best places on Earth to see them. It sits directly beneath the auroral oval, has long dark winters, and wide-open landscapes with almost no light pollution outside Reykjavík.

But a sighting is never guaranteed. The aurora is governed by solar activity, cloud cover, and darkness — none of which anyone controls. This guide gives you the honest, complete picture: what the lights are, when to go, what apps to use, where to stand, and what to do when the sky finally clears.

What Are the Northern Lights and Why Do They Happen?

Northern Light, Aurora borealis at Godafoss waterfall in winter, Iceland
Northern Light, Aurora borealis at Godafoss waterfall in winter, Iceland

The aurora borealis — Northern Lights in plain English — is caused by charged particles from the sun colliding with gases in Earth's upper atmosphere. When the sun releases a burst of energy through a solar flare or coronal mass ejection, streams of charged particles travel toward Earth.

Our planet's magnetic field deflects most of them, but near the magnetic poles, the field funnels particles down into the atmosphere where they collide with oxygen and nitrogen molecules.

Those collisions release energy as visible light. Different gases at different altitudes produce different colors:

Green — the most common color, produced by oxygen at around 100 km altitude. Almost every Northern Lights photo you've ever seen is dominated by green.

Red — oxygen at higher altitudes, above 200 km. Rarer, and usually only appears during intense geomagnetic storms.

Blue and purple — nitrogen molecules, typically at the lower edges of a display.

Pink — a mix of nitrogen and low-altitude oxygen, sometimes visible at the bottom fringes of an active display.

White or pale grey — how a moderate aurora often appears to the naked eye in person, even when the camera picks up vivid color.

Aurora intensity follows an approximately 11-year solar cycle. At solar maximum — peak activity — displays are more frequent, more vivid, and visible at lower latitudes than usual. Solar Cycle 25 peaked around 2024–2025, meaning activity right now is historically high. This is an exceptional window for aurora hunting anywhere in the northern hemisphere, including Iceland.

When Is the Best Time to See the Northern Lights in Iceland?

A wonderful night with northern lights in iceland
A wonderful night with northern lights in iceland

The Northern Lights require two things that Iceland can only offer at certain times of year: darkness and solar activity. Iceland experiences near-24-hour daylight from roughly May through July — the aurora may well be active during those months, but the sky never gets dark enough to see it. Chasing the Northern Lights in summer is pointless, however clear the sky.

Aurora Season in Iceland: Late August Through Early April

The window for Northern Lights viewing in Iceland opens in late August, when nights finally grow dark enough after the long summer, and closes in early April, before the midnight sun begins again. The peak season runs from September through March.

Best Months to See the Northern Lights in Iceland

September and October are widely considered the sweet spot. Nights are long enough (8–12 hours of darkness), the weather tends to be more settled than deep winter, temperatures are cold but manageable, and the landscape is stunning — golden autumn colors, early dustings of snow on mountain peaks, dramatic skies. Statistically, September and October have some of the best clear-sky rates in Iceland's aurora season.

November through January brings maximum darkness — December has roughly 19–20 hours of night — but also Iceland's most volatile and unpredictable weather. Storms roll in quickly, cloud cover is frequent, and temperatures are severe.

The long dark nights give you more time to wait for a break in the clouds, and when conditions do align in these months, displays can be among the most spectacular of the year. But patience is non-negotiable.

February and March are increasingly popular and genuinely underrated. Daylight returns quickly in February and weather begins to stabilize. Aurora activity remains strong, roads are passable, and the crowds haven't arrived yet. By March you have both reasonable daylight for sightseeing and real darkness for aurora hunting — one of the better overall travel windows in the Icelandic year.

Late August is a quiet gem. Darkness is limited to a few hours either side of midnight, but in a high-cycle solar year like this one, even a short window can produce a memorable display.

How to Track the Northern Lights in Iceland

Northern Lights (Aurora) With Cabins In the Wild Nature, Iceland
Northern Lights (Aurora) With Cabins In the Wild Nature, Iceland

This is where most visitors make their biggest mistake. They walk outside, look up, see nothing, and assume the lights simply aren't happening. Often the real problem is clouds — the aurora is active above them and completely invisible from the ground. Sometimes the lights are blazing 30 km to the north, just past a cloud band, and a short drive would get you there.

Tracking the aurora properly — using the right tools and knowing how to read them — is the difference between a lucky stumble and an intentional success.

The Icelandic Met Office Aurora Forecast (Most Important Tool)

en.vedur.is/weather/forecasts/aurora

This is the single most useful resource for aurora hunting in Iceland. Published by the Icelandic Meteorological Office, it combines two critical pieces of information on one map:

Cloud cover forecast — color-coded across Iceland. Clear areas show in lighter tones; cloud cover in grey and blue. This tells you where in Iceland the sky is actually open.

Aurora activity forecast — the KP index prediction for the coming 72 hours.

The key is reading both together. An active aurora under solid cloud cover is invisible. A perfectly clear sky with KP 0 means nothing will happen. You want the intersection: clear skies AND aurora activity. This map shows you where that intersection exists and lets you decide whether it's worth driving toward it.

Check it every evening during your trip from around 5:00 PM onward. Conditions in Iceland can change within hours.

The Aurora Forecast App

Available for both iOS and Android, the Aurora Forecast app displays the real-time KP index alongside a cloud cover overlay on a map. The most useful feature is push notifications — set a KP threshold (e.g., KP 3) and the app will alert you if that level is reached during the night, even while you're sleeping.

This means you don't need to stay awake watching the sky — you can let the app wake you when the conditions are right.

What Is the KP Index and What Number Do You Need?

Camp with Northern lights in Iceland
Camp with Northern lights in Iceland

The KP index measures global geomagnetic activity on a scale from 0 to 9. Iceland sits at roughly 65° north latitude, which means even relatively low KP levels can produce visible aurora here. As a practical guide:

KP 0–1: Faint or invisible. Not worth heading out unless skies are perfectly clear and you're very patient.

KP 2: Weak display possible in very dark skies. Subtle — the camera may capture more than the eye sees.

KP 3: A real display. Clearly visible to the naked eye in dark conditions, good for photography, bands of green across the sky.

KP 4: Strong display. Visible even with minor cloud interference. Active movement, potentially multiple colors.

KP 5+: Geomagnetic storm. Visible across a wide area, potentially spectacular, colors beyond green, visible even from Reykjavík city itself.

KP 7–9: Severe to extreme storm. Rare and extraordinary. During Solar Cycle 25's recent peak, several KP8 and KP9 events produced lights visible as far south as Spain and the southern United States.

For Iceland specifically, a KP of 3 or above with clear skies is a genuine aurora night. Don't write off a KP 2 forecast if you happen to be standing somewhere perfectly dark with open sky.

SpaceWeatherLive.com

For anyone who wants to go deeper than the app level, SpaceWeatherLive.com tracks solar wind speed, density, and the Bz component of the interplanetary magnetic field (a southward Bz means aurora is more likely). If a major solar event is inbound — a coronal mass ejection heading toward Earth — this is where you'll know about it 1–3 days ahead of time.

Best Places to See the Northern Lights in Iceland

Cars parking on country road with northern lights on sky at Lofoten, islands
Cars parking on country road with northern lights on sky at Lofoten, islands

Iceland's greatest aurora advantage is proximity to Reykjavík. The city's light pollution extends only a few kilometers — drive 20 minutes in almost any direction and you're in genuinely dark countryside. You don't need to travel to remote Iceland to have a real aurora experience.

Northern Lights Spots Near Reykjavík (No Car Needed)

Grótta Lighthouse, Seltjarnarnes

View of the northern light at Grotta Lighthouse in Reykjavik, Iceland
View of the northern light at Grotta Lighthouse in Reykjavik, Iceland

The best option for visitors without a car. A 20–25 minute walk from central Reykjavík along the Seltjarnarnes peninsula, the Grótta lighthouse sits at the tip of the headland with open ocean on three sides and an unobstructed northern horizon.

It's meaningfully darker than downtown Reykjavík and on active nights (KP 3+) the aurora is clearly visible from here. You will almost certainly find other aurora hunters gathered at the lighthouse on clear, active nights — a friendly community forms quickly.

Öskjuhlíð Hill (Perlan) The wooded hill topped by the Perlan museum, about a 10-minute drive or 30-minute walk from downtown. Elevated views in multiple directions, darker than the city center, and accessible by taxi or rideshare. The open area on the north side of the hill is the best viewing spot.

Elliðaárdalur Valley A nature reserve within Reykjavík's city limits, darker than downtown and offering good open sky. Accessible by city bus from the center.

Best Northern Lights Locations Outside Reykjavík

Þingvellir National Park

One of Iceland's finest aurora settings. The broad rift valley, the dark surface of Þingvallavatn lake, and the complete absence of light pollution combine to make this exceptional.

The lake reflects active aurora beautifully. Parking areas within the park are accessible year-round and free after hours. About 45 minutes from Reykjavík on Route 36 — as soon as you leave the city's light dome, the sky opens up.

Route 36 Between Reykjavík and Þingvellir

Even before you reach the park, any pullout on Route 36 east of Mosfellsbær puts you in genuine darkness. This is one of the most accessible dark-sky corridors from Reykjavík for a car-based quick escape on an active night.

Snæfellsnes Peninsula

View of the northern light at dusk over Kirkjufell Mountain in Iceland
View of the northern light at dusk over Kirkjufell Mountain in Iceland

About 2.5 hours from Reykjavík, the Snæfellsnes Peninsula offers some of Iceland's most dramatic aurora backdrops — the conical silhouette of Snæfellsjökull glacier volcano against a sky full of green light is iconic.

The coastal roads, black lava fields, and mountain reflections in fjord water make this one of the most photogenic aurora destinations in the country. Underused and underrated by most itineraries.

The South Coast (East of Selfoss)

The flat, open landscape of the South Coast is ideal for aurora viewing — wide horizons, almost no artificial light, and easy road access. Pull off anywhere east of Selfoss and you're in genuine darkness. Reynisfjara black sand beach with aurora reflecting in the wet sand and the Reynisdrangar sea stacks silhouetted against green sky is one of Iceland's most extraordinary natural scenes.

Near Jökulsárlón Glacier Lagoon

Aurora borealis northen light and icebergs in Jokulsarlon glacial lagoon
Aurora borealis northen light and icebergs in Jokulsarlon glacial lagoon

Arguably Iceland's most dramatic aurora setting. The lagoon has virtually zero light pollution — it's one of the darkest places in the country. Aurora reflected in water among glowing icebergs, with the glacier looming behind — photographs from here look almost computer generated. Requires a long drive from Reykjavík (about 5 hours) but the experience is unlike anything else.

The Westfjords

The most remote region of Iceland and one of its darkest. If your itinerary takes you there, the Westfjords produce extraordinary aurora experiences with no competition from light pollution for hundreds of kilometers. Not a destination to plan specifically around the lights, but a magnificent bonus if you're there.

Near Vík

The small coastal village has minimal light pollution and the surrounding countryside is completely dark. Drive 5 minutes in any direction and you're in open landscape. The black sand beaches here, the Mýrdalsjökull glacier looming to the north, and the dramatic coastal cliffs make this an excellent aurora base on a South Coast trip.

How to Photograph the Northern Lights in Iceland

Photographing the aurora is one of the most rewarding photographic challenges in Iceland. It doesn't require an expensive or specialist camera — modern smartphones produce surprisingly good results. But a camera with manual exposure controls gives you the ability to make the most of any display, from a faint whisper of green to a full-sky storm.

Camera Settings for Northern Lights Photography

Vestrahorn Stockknes mountain range with aurora borealis, Iceland
Vestrahorn Stockknes mountain range with aurora borealis, Iceland

ISO: Start at ISO 1600. Bump to ISO 3200 for faint aurora or fast-moving displays. Drop to ISO 800 if the lights are very bright and you want less noise.

Aperture: As wide as your lens allows. f/1.8 and f/2.8 are ideal. f/4 is workable. Anything narrower than f/5.6 will struggle.

Shutter speed: 5–15 seconds for a moving display. Shorter exposures (2–4 seconds) freeze rapid movement but require higher ISO. Longer exposures (20–30 seconds) cause active aurora to blur into a flat haze. Start at 10 seconds and adjust.

Focus: Switch to manual and set to infinity. In darkness, autofocus hunts and fails. Use live view to zoom in on a bright star and adjust manually until sharp.

White balance: Set manually to around 3500–4500K for natural aurora colors. Or shoot in RAW and adjust in post-processing — always preferable.

Always shoot RAW if your camera supports it. The extra editing latitude makes a significant difference.

For smartphones:

iPhone 13 and later, Google Pixel 6 and later, and Samsung Galaxy S22 and later all have night modes capable of capturing decent aurora images. Look for an astrophotography or pro night mode. Use a tripod or rest the phone on a solid surface — a 10-second handheld exposure in the dark produces nothing useful. Avoid digital zoom entirely.

Gear You Actually Need

A tripod — the single most important piece of equipment. Any movement during a 10-second exposure destroys the image.

A spare battery — cold temperatures drain camera batteries dramatically fast. Keep a spare in an inside jacket pocket, warm against your body, and swap when the first dies.

A remote shutter release — even pressing the shutter button causes camera shake on long exposures. A cheap wired remote eliminates this.

A headtorch with red mode — red light lets you adjust camera settings without destroying your night vision. White light temporarily blinds you and those around you.

Lens cloths — moving from a warm car to cold air fogs lenses within seconds. Wipe clean and let the lens acclimatize before shooting.

Compositions That Make Aurora Photos Memorable

Include a foreground subject. A waterfall, a farmhouse with lit windows, a snow-covered mountain, a person looking up — something that gives scale and context. Pure sky shots are technically impressive and emotionally empty.

Reflect the aurora. Lakes, glacier lagoons, wet black sand beaches, puddles on a dark road. Even a centimeter of standing water on a flat surface gives you a reflection.

Silhouette a recognizable landmark. Kirkjufell mountain, the Hallgrímskirkja church, the Jökulsárlón icebergs. Instantly iconic.

Put a person in the frame. A silhouetted figure looking upward connects the viewer to the experience in a way that landscape alone doesn't.

Shoot vertically. Aurora often fills a large portion of the sky from horizon upward. A vertical composition captures this in a way a horizontal frame sometimes can't.

Guided Northern Lights Tours From Reykjavík

Northern shine night sky, bright lights visible on horizon in forest
Northern shine night sky, bright lights visible on horizon in forest

If you don't have a rental car, or simply prefer to let someone with local knowledge do the cloud-chasing and driving, guided Northern Lights tours operate nightly out of Reykjavík throughout aurora season.

Minibus tours

The most common and affordable option. A guide drives a small group to dark-sky locations outside Reykjavík, chosen based on that evening's cloud cover forecast. Tours typically run 2–4 hours. Most reputable operators offer a free repeat tour if the lights don't appear — always confirm this policy before booking.

Super Jeep tours

Smaller groups, 4x4 vehicles, more flexibility to chase clear skies if the first location clouds over. Significantly better odds on borderline nights when cloud cover is patchy. More expensive, but the price reflects the superior adaptability.

Boat tours

Some Reykjavík operators take groups out to sea to escape coastal cloud cover. The experience of watching aurora from the North Atlantic is unique — and the sea horizon gives unobstructed sky views that land-based spots can't always match.

What to Wear for Northern Lights Hunting

Standing completely still outdoors in Icelandic winter for an hour or two is significantly colder than walking, hiking, or doing anything active. Wind chill on an open hillside or beach can be brutal. This is not the place to underdress.

Thermal base layers (merino wool preferred) top and bottom

Thick fleece or down mid-layer — a heavy down jacket rather than a light one

Waterproof and windproof outer shell — the wind cuts through fleece and down without a shell layer

Waterproof insulated trousers — standing in snow or on a wet beach in jeans is genuinely miserable

Warm hat covering your ears — not optional

Balaclava or neck gaiter — especially valuable on windy nights

Insulated waterproof gloves — your hands need to function for camera adjustments; they also need to be genuinely warm

Waterproof boots with grip soles — dark, uneven ground and possible ice underfoot

Chemical hand warmers — cheap, lightweight, and transformative for camera-operating fingers on a cold night

What the Northern Lights Are Really Like

Green aurora light behind famous Skogafoss waterfall on Skoga river
Green aurora light behind famous Skogafoss waterfall on Skoga river

What You Might Actually See

The most common first reaction when the Northern Lights appear is: "Wait — is that them?" Faint displays look like a pale greenish-white haze above the horizon. Not the vivid curtains from the photos — at least not at first.

When activity picks up, bands of green form and begin to move, brighten, and occasionally burst into rapid ripples across the sky. A strong display on a KP5+ night with dark skies is genuinely stunning — vivid green with hints of red and purple, moving fast, filling most of the sky.

Cameras consistently capture more color saturation than the naked eye because of how long-exposure photography collects light. This isn't dishonest — it's a technical difference. The actual experience, even on a night where photos look extraordinary, often appears somewhat more subtle in real life. That doesn't make it any less moving.

You Cannot Guarantee a Sighting

This cannot be said enough. No tour operator, no forecast app, no amount of money or planning guarantees you will see the Northern Lights. Solar activity is not predictable beyond a few days. Iceland's weather is famously volatile. The best-prepared visitors still sometimes spend a week under continuous cloud cover and see nothing.

What you can do is maximize your odds: travel during aurora season, stay for at least 5–7 nights, use the forecast tools daily, be ready to drive toward clear skies at a moment's notice, and accept from the start that this is nature, not a ticketed show.

Most visitors who stay for a week during aurora season do see the lights. Most visitors who stay for two or three nights in shoulder conditions don't — not because the lights weren't there, but because the weather didn't cooperate.

The Lights Can Surprise You

Some of the most memorable aurora sightings in Iceland happen when people aren't looking. Driving back from dinner. Walking to the car at 10 PM. Stepping outside the guesthouse to check the weather. The lights don't announce themselves. Glancing north on a clear night and seeing green bands where 20 minutes ago there was nothing is a specific kind of thrill that aurora hunters describe as addictive.

Keep looking up.

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