Aurora Tonight
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Northern lights Golden Circle tonight

Iceland's Golden Circle - Þingvellir, Geysir, and Gullfoss - sits at ~64°N magnetic latitude, 45–90 minutes from Reykjavik. Kp 3 is the threshold. Þingvellir's rift valley and lake give the darkest conditions on the route. Best season: September to April.

Aurora visibility — Golden Circle

Unlikely tonight

Kp 1 is well below the Kp 3 threshold needed for aurora to be visible from Golden Circle.

Current Kp

1

of 9

Threshold for Golden Circle: Kp 3 Magnetic latitude: ~64°N Updated: 10 May, 11:08 UTC

What Kp is needed here?

Golden Circle sits at a magnetic latitude of approximately 64°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 3 before the auroral oval expands far enough south to be visible from here.

At Kp 3, visibility is possible from Golden Circle 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 Golden Circle

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

Þingvellir National Park

A UNESCO World Heritage Site where the North American and Eurasian tectonic plates meet. The rift valley gives a wide open dark sky above the Þingvallavatn lake, the largest natural lake in Iceland. At night, completely dark with aurora reflected in the lake. About 45 minutes from Reykjavik.

Geysir geothermal area

The steam vents and erupting geysers of the Geysir area give a unique aurora foreground. At night the area is dark and the silhouette of steam plumes against a northern lights sky is atmospheric. About 2 km from the main road with a car park.

Gullfoss waterfall viewpoint

One of Iceland's most powerful waterfalls. The upper viewpoint gives an open north-facing position. At night, the roar of the falls and the dark gorge lit by aurora is dramatic. Car park accessible year-round.

Other Iceland aurora forecasts

Iceland overview Reykjavik Jökulsárlón Akureyri

Related pages

Northern Lights Iceland

Iceland-wide aurora forecast hub.

Northern Lights Reykjavik Tonight

Reykjavik - 45 minutes from Þingvellir.

Northern Lights Jökulsárlón Tonight

Jökulsárlón glacial lagoon - Iceland's south-east coast.

Northern Lights Photography

Camera settings for Þingvellir and Geysir aurora photography.

What Is the Kp Index?

What Kp 3 means for viewing at 64°N magnetic latitude.

Common questions

Aurora watching on Iceland's Golden Circle route.

What is the Golden Circle?
The Golden Circle is Iceland's most popular tourist route - a roughly 300 km loop from Reykjavik taking in Þingvellir National Park, the Geysir geothermal area, and Gullfoss waterfall. During the day it's a full itinerary. At night, with aurora present, the route becomes an aurora drive with Þingvellir as the primary dark sky stop.
Is the Golden Circle dark enough for aurora?
Yes. Once past Reykjavik's immediate suburbs, the Golden Circle landscape is genuinely dark. Þingvellir, about 45 minutes from Reykjavik, gives Bortle 3-4 conditions above the rift valley and lake. At Kp 3+ the aurora is clearly visible and reflected in Þingvallavatn. The Geysir area and Gullfoss are slightly further and equally dark.
What Kp is needed for the Golden Circle area?
Kp 3 from dark positions along the route. The southern part of Iceland around the Golden Circle sits at ~64°N magnetic latitude, slightly further from the auroral oval than Reykjavik. Kp 3 is still a modest threshold - a minor geomagnetic event on a clear night is sufficient.
Can I do an aurora tour on the Golden Circle?
Yes. Several Reykjavik operators run evening Golden Circle tours timed for sunset and aurora potential. They combine daytime landmarks with an aurora stop at Þingvellir after dark. The return to Reykjavik is typically around 11pm-midnight depending on conditions. Look for tours that promise to extend the evening if aurora is active.
When should I visit the Golden Circle for aurora?
September to April. The route is accessible year-round - Route 35 (Þingvellir) and Route 37 (Geysir and Gullfoss) are paved and maintained in winter. October and March give good darkness combined with higher geomagnetic activity odds. Winter (December-January) has the longest dark windows but can be stormy.