Northern Lights Tonight in Sudbury, Ontario, Canada

Live visibility odds for Sudbury, combining the current geomagnetic Kp index with real local cloud cover, not just one or the other.

What Kp do you need in Sudbury?

Those frequencies are how often the geomagnetic threshold itself is reached, before weather. Cloud cover, moonlight and local light pollution all cut into it, which is why the live score at the top of this page multiplies the geomagnetic odds by tonight's actual sky over Sudbury.

Which way to look from Sudbury

Face north. From Sudbury the auroral oval sits well to the north, so activity shows up as a glow low on the northern horizon rather than overhead — which means a clear, unobstructed northern view matters more here than total darkness does.

About aurora viewing in Sudbury

Sudbury sits further south than Thunder Bay, so it generally needs a stronger storm, but its position well north of Toronto still gives it a real latitude advantage over most of southern Ontario.

Where locals actually go

Lake Laurentian Conservation Area and other green spaces at the city's edge offer a quick escape from downtown light pollution.

Best time of year

Fall and winter nights, once past the region's notoriously cloudy autumn stretch, give the best combination of darkness and clear sky.

Will I see the aurora in Sudbury tonight?

Right now, Sudbury has a 5% chance based on tonight's real conditions: Kp 1.7 and 95% clear skies. Unlikely. This updates live, so check back closer to dark for the most accurate read, especially if the sky is currently cloudy where you are.

A good Kp forecast isn't the whole story. See what else actually determines whether you'll see it →