Northern lights in Ísafjörður tonight
Westfjords, Iceland · 66° magnetic latitude · Kp 2 threshold
Kp 6 exceeds the visibility threshold for Ísafjörður. Head out if skies are clear and you have a dark site.
7-day outlook for Ísafjörður
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
auroratonight.space
What Kp is needed here?
Ísafjörður sits at a magnetic latitude of approximately 66°N. The Kp index - a global measure of geomagnetic activity on a scale from 0 (quiet) to 9 (extreme storm), updated every 3 hours - needs to reach Kp 2 before the auroral oval expands far enough south to be visible from here.
At Kp 2, visibility is possible from Ísafjörður but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.
Best dark sky sites near Ísafjörður
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Ísafjörður fjord, mountain road above the town
Get directions ↗The steep mountain road leaving Ísafjörður eastward climbs rapidly above the town lights. Within 2-3 km of the junction the fjord opens below and the town's light dome drops below the ridgeline. The fjord stretches north between dark mountain walls toward the open sea. Aurora appears framed by the fjord sides - the confined geometry of the Westfjords channels concentrate the view into a single dramatic corridor. This is the most practical dark sky position for anyone staying in Ísafjörður: short drive, no specialist access required, and a view that rewards any level of activity from Kp 2 upward.
Dynjandi waterfall and Arnarfjörður
Get directions ↗Dynjandi is the largest waterfall in the Westfjords, dropping in a series of tiers over approximately 100 metres into Arnarfjörður. The surrounding landscape is completely uninhabited - no light source in any direction except stars and aurora. The waterfall face is northeast-facing, giving a clear view of the northern sky arc. Route 60 south from Ísafjörður passes through a series of remote fjords, all dark, making the drive itself part of the aurora-watching time. Check road.is before travelling south - Route 60 can be closed in severe winter weather. When the road is open the conditions around Dynjandi are among the best in Iceland.
Hornstrandir Nature Reserve approach
Get directions ↗Hornstrandir is the most remote nature reserve in Iceland, with no permanent residents and no roads. The reserve sits at 66.3°N - marginally north of the Arctic Circle - and access is by summer ferry only (no scheduled winter service). For a September aurora trip, when some darkness returns and summer ferries still run, Hornstrandir offers Bortle 1 sky and conditions that have no equivalent elsewhere in accessible Iceland. Winter access requires a chartered helicopter or snowmobile. The reserve is not a casual option, but for anyone prepared to plan around the logistics it represents some of Iceland's most exceptional dark sky territory.
Best time to see the northern lights in Ísafjörður
At 66°N magnetic latitude, Ísafjörður has one of the longest aurora seasons in the world. Meaningful darkness returns in late August and displays are possible on almost any clear night from September through March. Only the endless daylight of May, June, and July rules out viewing completely.
Activity peaks around the September and March equinoxes, when Earth's magnetic field geometry is most favourable for coupling with the solar wind. Events during these two windows tend to produce the strongest displays of the year for observers at Ísafjörður's latitude.
May through July is effectively impossible for aurora viewing: the midnight sun keeps the sky bright around the clock at this latitude. No storm level, not even G5, can produce a visible display without astronomical darkness.
Up to 8 locations
How often does the aurora appear in Ísafjörður?
Average nights per month the Kp reached Ísafjörður's threshold of 2+, from 15 years of geomagnetic data (2010–2024).
Counts the Kp 2+ threshold only - cloud cover and local darkness are not included.
Kp data: GFZ German Research Centre for Geosciences, CC BY 4.0
Plan your trip to Ísafjörður
Best window
The January to March window averages 60 aurora nights - the strongest consecutive stretch of the year.
How long to stay
For your best chance in March, plan at least 2 nights.
Related pages
Iceland aurora overview
Aurora forecasts for all major Iceland locations, with Kp thresholds and dark sky guidance.
Read →Westfjords aurora forecast
Aurora forecast and dark sky guide for the Westfjords peninsula.
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Aurora forecast for Stykkishólmur on the Snæfellsnes Peninsula, connected to the Westfjords by ferry.
Read →What is the Kp index?
A plain-language explanation of the Kp index and how to use it to plan an aurora trip.
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Read →Planning your aurora trip
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