Why does timing matter so much?

Aurora needs three things simultaneously: darkness (Sep-Mar in the Arctic), geomagnetic activity (peaks near equinoxes — Sep-Oct and Mar), and clear skies (variable, weather-dependent). The Sep-Mar window is when all three are achievable; outside it, the midnight sun makes aurora impossible regardless of geomagnetic activity.

Aurora Tours — Northern Lights Travel Guide

Q: What is the KP-index?

The KP-index measures geomagnetic activity on a scale of 0-9. KP 3+ produces aurora visible from northern Iceland and Tromsø; KP 5+ pushes the auroral oval far enough south to be visible across all of Iceland and southern Norway.

01 · The aurora season

When you can see it. Only when you can see it.

Aurora viewing requires three conditions to align: darkness (only available in the northern hemisphere from late August to mid-April at sub-arctic latitudes); geomagnetic activity (the sun's solar wind interacting with Earth's magnetosphere — currently peaking); and clear skies (weather, the only one that's truly chance). The first two define a hard calendar window. Outside it, the midnight sun makes aurora invisible regardless of solar activity.

The aurora window

Northern Winter

September — March

The only months of the year when northern-latitude darkness, peak geomagnetic activity, and viewable conditions can all align. Outside this window, the midnight sun rules out aurora viewing at any latitude where aurora forms.

🌑14–22 hrsDaily darkness at Tromsø & Saariselkä in Dec-Jan

🧭64–69°NOptimal viewing latitudes — Iceland, Lapland, Tromsø

⚡KP 3+Threshold for aurora visible from sub-arctic locations

🌗Sep · MarEquinox months — strongest geomagnetic activity historically

❄️−5 to 5°CIceland typical · Lapland/Tromsø colder (−15 to −5°C)

🌌3+ chasesCooee tour standard — multiple attempts per departure

02 · Aurora by the numbers

A few useful figures.

Some context worth knowing before booking a trip you're hoping to photograph.

100km

Altitude where most aurora forms (90-150km up)

11 yrs

Solar cycle length · we're near peak now

~8 min

Solar wind transit time from sun to Earth at high speed

3,000K

Temperature of the upper atmosphere where aurora glows

88%

Of aurora visible from Earth is green (oxygen at 100km)

03 · Aurora visibility calendar

Month-by-month visibility quality.

A simplified visibility calendar for sub-arctic destinations (Iceland, northern Norway, Finnish Lapland). Quality is a combined index of darkness hours, historical geomagnetic activity, and weather statistics. Variability between years is real, but the broad pattern is reliable.

Peak (equinox boost · darkness · activity) Very good (long darkness · steady activity) Limited (narrow window) Midnight sun (no aurora possible)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Aurora visibility Combined quality index · sub-arctic locations

Very good

Peak

Limited

Midnight sun

Limited

Peak

Very good

How to read this: peak months (Sep, Oct, Mar) align with the equinox-boost — geomagnetic activity is statistically highest within 4-6 weeks of the equinoxes. Nov-Feb offer the longest darkness windows but slightly less geomagnetic intensity. Aug and Apr are shoulder months (returning daylight limits the viewing window). May-Jul are unviewable at any aurora-active latitude due to the midnight sun. The Cooee Iceland tour runs Sep, Oct, Nov, Feb, Mar to align with the four highest-quality months.

04 · How aurora works

The physics in plain language.

Most travellers don't need to know the underlying science to enjoy the aurora — but understanding the basics helps you read the forecasts and know what's possible on any given night.

The KP-index, briefly

The KP-index is a 0-9 scale measuring how disturbed Earth's magnetic field is right now. Aurora becomes visible at sub-arctic locations from KP 3; KP 5+ is a "geomagnetic storm" and pushes the auroral oval far enough south that aurora is briefly visible from places like northern Scotland, Tasmania, and even mainland Australia. Cooee guides monitor KP-index forecasts in real time and reposition guests accordingly during chase nights.

KP 3+ visible from Iceland and Tromsø · KP 5+ "storm level" pushes aurora visible to mid-latitudes · KP 8+ rare, can be visible as far south as central Europe.

The solar maximum matters

The sun goes through an 11-year cycle of magnetic activity, from solar minimum (quiet sun, few sunspots) to solar maximum (active sun, frequent solar flares and coronal mass ejections). We're currently near the peak of Solar Cycle 25, which reached its maximum in October 2024 and remains elevated through 2026-2027.

What this means in practice: more frequent KP 5+ events, more visible aurora across more nights, and aurora visible at lower latitudes more often. The next solar maximum after this one isn't until roughly 2036. The booking case for the next two aurora seasons is genuine — not marketing urgency.

05 · Cooee aurora tours

Three routes to the lights.

Cooee's flagship aurora itinerary is the Iceland & Norwegian Fjords trip; the two extensions take you further north for higher-latitude viewing.

Nordic · Flagship aurora itinerary Iceland & Norwegian Fjords 14 days · max 12 · 3 chase nights · Sep-Mar departures

Best for: first-time aurora travellers and photographers who want a varied photographic program. Three dedicated chase nights with meteorologist-led local guide. Cooee's 87% historical success rate on this exact itinerary.

from $6,499 pp View tour →

Finland · Higher-latitude extension Lapland Glass-Igloo Extension +4 nights from $2,995 pp · Saariselkä · 68°N

Best for: aurora purists who want the highest viewing odds. Glass-igloo accommodation lets you see aurora from bed; husky sledding, Sami-village visit, additional chase nights at higher latitude than Iceland.

post-Iceland add-on View extension →

Norway · Far-north extension Tromsø Aurora Extension +3 nights from $1,795 pp · 69°N · Lyngenfjord views

Best for: travellers extending the Iceland trip with another high-latitude location. Tromsø is 5° further north than Reykjavik, deeper inside the auroral oval, with shorter winter daylight and dramatic fjord landscapes.

post-Iceland add-on View extension →

Ready for the Northern Winter?

Solar maximum is now — the next two seasons (winter 2026-27 and 2027-28) are the strongest aurora window for the next decade. Book 4-6 months ahead for cabin choice and guide availability. Speak directly to a Brisbane-based Nordic specialist who has run Cooee aurora departures.

Enquire about aurora tours → 📞 +61 409 661 342

06 · Photography quick guide

What you actually need to bring.

Most aurora photos that go viral were captured by ordinary travellers with semi-pro gear. Here's the bare minimum that produces good results.

📷 Camera Manual mode required Any DSLR or mirrorless body works. Phone night-mode (iPhone 13+, Pixel 6+, Galaxy S22+) captures decent aurora — not pro quality but usable.

🔭 Lens Wide · f/2.8 or wider 14-24mm or 16-35mm wide-angle preferred. Faster apertures (f/1.8, f/1.4) give you more shutter-speed flexibility.

⚙️ Settings starting point ISO 1600-3200 · 5-10s Open aperture wide. Adjust shutter from 5s (very active aurora) up to 15s (faint aurora). Always shoot RAW for post-processing.

🦿 Tripod Non-negotiable Sturdy enough to handle 100km/h Iceland winds. Carbon fibre or weighted aluminium. Phone tripods are fine for casual phone shooting.

🔋 Spare batteries Cold drains them Bring 2-3 spares and keep them in an inside pocket close to your body. A fully-charged battery can drop to 30% within 20 minutes at -10°C.

🧭 Composition Foreground always Aurora alone gets boring fast. Frame with a foreground — mountain silhouette, lake reflection, cabin, glacier. Cooee guides scout the location for you.

07 · From past aurora travellers

Reviews from the chase nights.

★★★★★

September aurora trip 2025 — saw the lights three out of three nights, including one absolute curtain-display over Vatnajökull. The Norwegian Nutshell day was breathtaking. Cooee's photography pacing meant we were always at the right viewpoint at the right time of day.

Peter & Helen B.

From Gold Coast · Iceland · September 2025

★★★★★

Did the Lapland glass-igloo extension after Iceland — December 2025. Aurora visible from bed three out of four nights. The husky sledding was magical and the Sami visit gave proper cultural depth to what could otherwise just be a "lights" trip.

John & Susan T.

From Newcastle · Lapland extension · December 2025

08 · Frequently asked

About aurora travel.

Will I definitely see the aurora?

No tour can guarantee aurora — it's atmospheric chemistry plus weather. But Cooee positions departures during the Sep-Mar window with multiple chase nights and meteorologist-led local guides who read KP-index and cloud cover in real time. Historical Cooee Iceland aurora-departure success rate: 87% see the lights at least once. The other 13% are typically blocked by extended weather systems we couldn't out-drive.

What's the KP-index? Do I need to monitor it?

The KP-index is a 0-9 scale of geomagnetic activity. KP 3+ produces aurora visible from northern Iceland and Tromsø; KP 5+ pushes the auroral oval far enough south to be visible across all of Iceland and southern Norway. You don't need to monitor it yourself — your Cooee guide does. But many guests find the SpaceWeatherLive or My Aurora Forecast apps a fun part of the trip experience.

What's solar maximum and why now?

The sun follows an 11-year cycle of magnetic activity. Solar Cycle 25 peaked in October 2024 and remains elevated through 2026-2027. During solar maximum, the sun produces more frequent flares and coronal mass ejections, which means more KP 5+ events and stronger, more frequent aurora. The next 18-24 months are the strongest aurora-viewing window for the next decade — the next solar maximum isn't until around 2036.

Phone or camera?

Both work. Modern flagship phones (iPhone 13 Pro+, Pixel 6+, Galaxy S22+) have night modes that capture surprisingly good aurora photos — usable for social media but not framable wall art. A DSLR or mirrorless camera with a wide-angle f/2.8 lens and a sturdy tripod gets you much further. See our photography quick guide above for starting settings.

How cold? What do I wear?

Iceland (Sep-Mar): 0 to 5°C dropping to -5°C overnight. Lapland and Tromsø (Dec-Feb): -15 to -5°C. Hat, gloves, neck buff non-negotiable. Layering: thermal base (merino), mid-layer fleece, waterproof shell, plus thermal trousers and waterproof boots. Cooee provides outer Arctic-grade winter gear (parka and trousers) on Lapland and Tromsø extensions. Hand warmers (chemical heat packs) make a big difference when standing still during chase nights.

Can I see aurora in Australia or New Zealand?

Sometimes — the southern equivalent is the Aurora Australis, visible from Tasmania and southern New Zealand during strong KP 6+ geomagnetic storms. May 2024 saw aurora visible from as far north as Brisbane during an extreme KP 8 event (a once-in-decades occurrence). But the southern aurora is rarer and harder to predict — the Northern Lights of the Arctic are the more reliable bucket-list trip. We're happy to chat about Tasmania options if you'd like a domestic alternative — call or use the form below.

Enquire about aurora travel

Tell us which destination interests you most (Iceland flagship, Lapland extension, Tromsø extension, or all three combined), preferred season month, and any photography focus. We'll come back within 1 business day with availability and tailored advice.

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Aurora borealis · the Northern Lights guide.