Northern lights in Oregon are rare: they need a geomagnetic storm of Kp 7 or more to reach this far south. AuroraMe tracks 4 locations across Oregon; the lowest threshold, Kp 7, is at Portland.
Cities Covered
Monitoring locations across Oregon
Magnetic Latitude Range
Prime aurora viewing latitudes
Required Kp Index
Minimum activity for visibility
Kp Requirements by Location
Aurora Status by City
Portland
Located at 51.0° MLAT with decent aurora opportunities. Geomagnetic storms with KP 6+ can produce visible displays. Monitor forecasts for storm alerts.
Bend
Located at 49.8° MLAT, aurora requires significant storm activity. KP 7+ events several times per year bring northern lights within view.
Eugene
Occasional aurora viewing at 49.5° magnetic latitude. Strong geomagnetic storms (KP 7+) can push northern lights south to this location.
Medford
Aurora reaches Medford during strong storms at 47.8° magnetic latitude. Monitor for KP 7+ events that push the auroral oval southward.
Best Viewing Season in Oregon
In a typical year no location we track in Oregon records a single clear night with Kp at its threshold. Only an extreme geomagnetic storm brings aurora this far south. Kp last reached the local threshold on 2026-01-21. Figures below are for Portland, the best-placed of the 4 locations we track in Oregon. They describe a typical year built from the 1996-2026 planetary Kp record and the 2001-2020 cloud normal — not a forecast. Each city page shows tonight's live cloud, moon and darkness instead.
Geographic Advantages
What It Would Take
Track with AuroraMe
That oval line is a model estimate of where the aurora sits at extreme Kp, not a measurement — the threshold date above comes from the Kp record itself.
Frequently Asked Questions
Can you see the northern lights in Oregon?
No — not in a typical year. Oregon averages under one clear night with the aurora in reach, and the planetary index has to reach Kp 7+ for it to be visible at all, which last happened on 2026-01-21. Only an extreme geomagnetic storm brings the aurora this far south, so this is a watch-the-alerts situation rather than a month to plan around.
Where are the darkest skies in Oregon?
Check our city pages for specific dark sky recommendations near each location.