This forecast covered the night of 2026-08-12. It stays online as a record of what was forecast. For current conditions, check the live forecast. Live aurora forecast

Greenland northern lights: Qaqortoq leads the city forecast

Qaqortoq has the strongest city forecast for the August 12 window, followed by Nanortalik, Narsarsuaq and Prins Christian Sund.

By AuroraMe Space Weather Desk Published Aug 11, 2026, 01:31 CET/CEST Updated Oct 7, 2026, 09:07 CEST
Aurora visibility tonight POSSIBLE

Tonight is actionable for the listed cities, with the best window at Aug 12, 05:00 GMT-1, but cloud cover can block the view.

Kp peak 5.0 Storm-level activity
Top city odds 41% Qaqortoq
Best window Aug 12, 05:00 GMT-1 Local time
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What happened on 2026-08-12

The storm came in below the forecast. NOAA's observed planetary K index peaked at 2.7, under the forecast peak of Kp 5.0 this brief was based on.

This event is over. For the next viewing chance, check the live 72-hour forecast for your city — conditions change every few hours.

City forecast

City Forecast window
Qaqortoq 2026-08-12, around Aug 12, 05:00 GMT-1
Nanortalik 2026-08-12, around Aug 12, 05:00 GMT-1
Narsarsuaq 2026-08-12, around Aug 12, 05:00 GMT-1
Prins Christian Sund 2026-08-12, around Aug 12, 05:00 GMT-1

City Aurora Scores for this Kp 5.0 event

2026-08-12 · peak Kp 5.0 AuroraMe per-city visibility score, top 4 cities Qaqortoq 41/100 Nanortalik 37/100 Narsarsuaq 36/100 Prins Christian Sund 32/100

Probabilities combine the Kp forecast with each city's visibility threshold, darkness window and cloud outlook at generation time. Live values on each city page override this snapshot.

NOAA northern hemisphere aurora forecast map
AuroraMe converts Kp 5.0 into local city calls using aurora conditions and local visibility factors.

This alert names cities because tonight’s northern lights chance varies by location.

Qaqortoq has Greenland’s strongest listed chance at 41%, with its best local time at Aug 12, 05:00 GMT-1. Nanortalik follows at 37% for the same local window.

Narsarsuaq has a 36% chance, while Prins Christian Sund has a 32% chance, both at Aug 12, 05:00 GMT-1. Clouds can block the view in any listed city, so check the live city forecast.

What to do

  1. Save your city in AuroraMe.
  2. Check the live city forecast before the window.
  3. Choose the strongest listed city if travel is practical.

Sources and live checks

This brief is based on the AuroraMe 72-hour city forecast, NOAA SWPC Kp, OVATION and local visibility factors.