SKY · AURORA · NORWAY
Aurora Forecast — Tromsø
Tromsø is a auroral zone location — it sits under the auroral oval — the aurora appears overhead on most clear, active nights, not just during big storms.
Conditions are active enough that the aurora should be overhead from Tromsø on a clear, dark night right now.
Source: NOAA SWPC (planetary Kp index) · viewing threshold from Tromsø's geomagnetic latitude (IGRF). Figures update through the night.
Seeing the northern lights from Tromsø
Whether the aurora is visible from Tromsøcomes down to two things: how disturbed Earth's magnetic field is (the Kp index, 0–9) and how far north Tromsø sits in geomagneticterms — about 67° here. The more active the field, the further from the poles the glowing oval reaches. For Tromsø, the rule of thumb is a Kp of almost any active night.
On a promising night, get away from street lighting, give your eyes 20 minutes to adapt, and look toward the northern horizon. A faint grey-green arch to the naked eye often shows up far more vividly through a phone or camera on a long exposure.
What to check before you go
Clear skies matter as much as the Kp — thick cloud hides everything. Pair this forecast with the live weather layer for Tromsø, and remember the Moon: a bright Moon washes out faint aurora.
Tromsø right now
BACK TO THE TRACKER
See the live oval, Kp and every city in one place.