Northern lights Borgarnes tonight
Borgarnes sits at 65°N magnetic latitude on the Borgarfjörður fjord in West Iceland, where the Kp index needs to reach Kp 2-3 for aurora to appear on the northern horizon. The town is 75 minutes from Reykjavik on the Ring Road - close enough for a same-night trip when activity is elevated, dark enough to see aurora the capital cannot. The Borgarfjörður east shore gives Bortle Class 2 sky within 5 minutes of the town centre, and the fjord surface mirrors any active display on calm nights. Borgarnes also sits at the junction of the Snæfellsnes Peninsula route, making it a practical overnight base for a wider aurora circuit of West Iceland.
Aurora visibility - Borgarnes
Low chance tonight
Kp 1 is below the threshold for Borgarnes. Activity would need to rise to Kp 2-3 before aurora could reach this latitude.
Current Kp
1
of 9
7-day outlook for Borgarnes
Today
21 May
Tomorrow
22 May
Sat
23 May
Sun
24 May
Mon
25 May
Tue
26 May
Wed
27 May
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
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.
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 ↗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 ↗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 ↗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.
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.
Other Iceland aurora forecasts
← Iceland overviewRelated pages
Iceland aurora overview
Aurora forecasts for all major Iceland locations, with Kp thresholds and dark sky guidance.
Snæfellsnes aurora forecast
Aurora forecast for the Snæfellsnes Peninsula, with Kirkjufell and the glacier coast.
Akranes aurora forecast
Aurora forecast for Akranes, 45 minutes from Reykjavik with the lighthouse peninsula.
Reykjavik aurora forecast
Aurora forecast for Reykjavik, with the Grótta lighthouse as the nearest dark sky.
What is the Kp index?
A plain-language explanation of the Kp index and how to use it to plan an aurora trip.
Common questions
Aurora at Borgarnes - Kp thresholds, dark sky access, and how to use it as a base for West Iceland.