Live aurora forecast

Northern lights in Borgarnes tonight

West Iceland · 65° magnetic latitude · Kp 2-3 threshold

Aurora visibility · Borgarnes
6/9
Good chance tonight

Kp 6 exceeds the visibility threshold for Borgarnes. Head out if skies are clear and you have a dark site.

QuietStormExtreme
Threshold
Kp 2-3
Magnetic latitude
~65°N
Bz ↓ south
- nT
Solar wind
- km/s
Density
- p/cm³
Cloud
-
Conditions right now: - Kp + Bz + solar wind + cloud + moon

Updated: 5 Jul, 17:29 UTC

7-day outlook for Borgarnes

Today
5 Jul
6
Good chance
Tomorrow
6 Jul
3
Possible
Tue
7 Jul
3
Possible
Wed
8 Jul
3
Possible
Thu
9 Jul
3
Possible
Fri
10 Jul
3
Possible
Sat
11 Jul
3
Possible

Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.

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What Kp is needed here?

Borgarnes sits at a magnetic latitude of approximately 65°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 2-3 before the auroral oval expands far enough south to be visible from here.

At Kp 2-3, visibility is possible from Borgarnes but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.

Plan your viewing

Best dark sky sites near Borgarnes

Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.

Borgarfjörður east shore

Get directions ↗
Bortle Class 2 - Excellent dark sky 5 km from Borgarnes - approximately 8 minute drive

The east shore of Borgarfjörður runs north from the town along a minor road with minimal development. The fjord opens wide here, and the northern horizon above the water is unobstructed for several kilometres of shoreline. Borgarnes itself is small enough that its lights fade quickly once you are past the town edge. The fjord surface mirrors aurora on calm nights, and the low hills of the Mýrar flatlands to the north keep the horizon dark. This is the most accessible dark sky position within minutes of Borgarnes accommodation, combining a broad northern view with fjord reflections and easy road access throughout winter.

Reykholt and the Reykholtsdalur valley

Get directions ↗
Bortle Class 2 - Excellent dark sky 30 km east of Borgarnes - approximately 30 minute drive

Reykholt is a small historic settlement in the broad Reykholtsdalur valley, 30 minutes inland from Borgarnes on Route 50. The valley is agricultural with scattered farms and very little artificial light once away from the settlement. The flat valley floor gives open northern and eastern sky. The valley sides are low enough not to interrupt the aurora arc on the horizon. The Snorrastofa cultural centre has accommodation making this a viable overnight base for aurora touring in the Borgarfjörður region.

Bifröst and Grábrók crater area

Get directions ↗
Bortle Class 2 - Excellent dark sky 40 km north of Borgarnes on Route 1 - approximately 35 minute drive

Grábrók is a small but perfectly preserved scoria crater cone adjacent to Route 1, about 35 minutes north of Borgarnes. The crater rises 170 m above the surrounding lava field and gives an elevated position above the valley floor. A short marked walking path reaches the rim. The Bifröst area around the crater is dark in all directions - the nearest settlement is Bifröst itself, a small service stop. The combination of the volcanic cone foreground and open sky to the north makes this a distinctive aurora position. The Route 1 pull-ins near the crater are accessible throughout winter.

When to go

Best time to see the northern lights in Borgarnes

At 65°N magnetic latitude, Borgarnes 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 Borgarnes'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

Borgarnes

Iceland

Good chance
Kp 6 need Kp 2-3
Checking darkness…
Snæfellsnes

Iceland

Good chance
Kp 6 need Kp 2-3
Checking darkness…
Akranes

Iceland

Good chance
Kp 6 need Kp 3
Checking darkness…
The odds

How often does the aurora appear in Borgarnes?

Average nights per month the Kp reached Borgarnes's threshold of 2+, from 15 years of geomagnetic data (2010–2024).

17.3Jan
19.1Feb
23.2Mar
7.2Apr
0May
0Jun
0Jul
0Aug
21.9Sep
21.8Oct
17.5Nov
15.8Dec

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

Make it happen

Plan your trip to Borgarnes

Based on 15 years of geomagnetic data (2010–2024)

1st
March
23.2
avg aurora nights
Stay 2+ nights for 80% chance
2nd
September
21.9
avg aurora nights
Stay 2+ nights for 80% chance
3rd
October
21.8
avg aurora nights
Stay 2+ nights for 80% chance

Best window

The September to November window averages 61 aurora nights - the strongest consecutive stretch of the year.

How long to stay

For your best chance in March, plan at least 2 nights.

Questions

Common questions about aurora in Borgarnes

Is Borgarnes a good base for aurora watching?
Yes, particularly for travellers based in Reykjavik who want to escape the capital's light pollution without a long drive. At 65°N magnetic latitude, Borgarnes shares the same Kp threshold as Reykjavik - 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 2-3. The difference is the dark sky: from Borgarnes the Borgarfjörður shore gives Bortle Class 2 conditions within 5 minutes, while from Reykjavik you need 20-30 minutes to reach dark sky. Borgarnes also sits at the start of the Snæfellsnes Peninsula route, making it a practical stopover for a multi-night aurora trip.
How far is Borgarnes from Reykjavik?
Borgarnes is approximately 75 km north of Reykjavik on Route 1, a drive of about 55 minutes in normal conditions. The road is the Ring Road - fully paved and gritted in winter - with tunnel options through the Hvalfjörður area that shorten the journey. This makes Borgarnes a viable same-night destination from Reykjavik when aurora activity is elevated: check the forecast, leave after dinner, and be at dark sky on the Borgarfjörður shore within the hour.
What Kp level is needed for aurora in Borgarnes?
At 65°N magnetic latitude, Borgarnes requires the Kp index to reach at least Kp 2 for aurora to appear on the northern horizon, and Kp 3 for a reliably active display. This is the same threshold as Akureyri and most of the Snæfellsnes Peninsula. The Borgarfjörður east shore gives Bortle 2 sky, which means faint aurora at Kp 2 is clearly visible here - brighter than it would appear from a light-polluted position at the same latitude.
Is Borgarnes or Akranes better for aurora from Reykjavik?
Both are viable same-night trips from Reykjavik. Akranes (45 minutes) is closer and the lighthouse peninsula gives a strong ocean horizon. Borgarnes (55 minutes) has the Borgarfjörður fjord shore with broader dark sky access and the option to continue north to Snæfellsnes or inland to Reykholt. Akranes is better for a quick check during an active alert; Borgarnes is better as a base for a longer aurora night with multiple dark sky positions to move between.
Can you see the Snæfellsjökull glacier from Borgarnes on clear nights?
Yes, on clear days and evenings the Snæfellsjökull glacier cap is visible from the Borgarfjörður area as a white dome approximately 100 km to the west-northwest. At night the glacier is not lit, so it appears as a dark shape against the western sky. During strong aurora displays, the glacier ice cap can reflect aurora colour from above - this is most visible from positions on the Snæfellsnes Peninsula itself, but on exceptional nights the reflection is detectable from the Borgarfjörður shore.
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