Northern Lights Tonight in Toronto, Ontario
Tonight in Toronto: aurora is unlikely. Kp peaks at 3.7, below the local Kp 5.1 threshold; clouds 99%.
Visibility now
UnlikelyKp 2.0 now (quiet); this spot needs Kp 5.1+.
Kp: NOAA SWPC · Oval: NOAA OVATION · Clouds: Open-Meteo · Updated every 15 minutes.
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Toronto aurora forecast
| EST | Kp | Chance | Status | Clouds |
|---|---|---|---|---|
| 6 PM | 3.7 | 10 of 100 | Unlikely | 100% |
| 7 PM | 3.7 | 10 of 100 | Unlikely | 100% |
| 8 PM | 3.7 | 10 of 100 | Unlikely | 100% |
| 9 PM | 3.7 | 10 of 100 | Unlikely | 93% |
| 10 PM | 3.7 | 10 of 100 | Unlikely | 100% |
| 11 PM | 3.7 | 10 of 100 | Unlikely | 100% |
Chance combines Kp against the local threshold, clouds, darkness and the moon. Hours before dark read “Too light”.
Kp is just one factor. The app adds clouds, moon, darkness, latitude and solar wind for each night.
Which nights are best?
No night in the 27-day NOAA outlook reaches Toronto's Kp 5.1; storms can still arrive at short notice.
~25 aurora nights per year
Dark nights when Kp reached 5.1, average of the last three years (GFZ Potsdam). Clouds not counted.
Average nights per month since 2015. Best months to visit: May, Sep.
Tonight's best window
If activity picks up, watch10 PM – 12 AM EST, look north, low on the horizon.
Fully dark from 6:36 PM to 5:26 AM EST.
Why this forecast?
Aurora Borealis Viewing in Toronto
Toronto is one of the hardest places in this country to see aurora from the street. At 5.1 the city needs a strong storm, and then the lights have to compete with the largest light dome in Ontario. Most of the time you will see nothing from downtown, even when the forecast looks promising.
What helps is geography. Lake Ontario fills the entire southern side of the city, so the northern horizon is the one that matters, and it is where the suburbs and the Greater Toronto Area spread out as a bright band. Lake-effect cloud and winter low-pressure systems also close the sky for days at a time. When a severe storm and a clear night line up, the best chance is to leave the built-up area completely, ideally north of the Greater Toronto Area, where the glow shrinks to a smudge.
People who do this regularly drive north on Highway 400 or Highway 11 toward Muskoka and Georgian Bay, or west and north to the Bruce Peninsula. The lakefront is no help: Scarborough Bluffs, the Leslie Street Spit and the Beaches all face south over the water, so you would be looking away from the aurora. Treat anything you catch from inside the city as a bonus, and plan a night drive for the real attempt.
For the whole picture, check the northern lights tonight overview or the live aurora map.
Dark-sky spots near Toronto
Torrance Barrens Conservation Reserve
Dark-Sky Preserve (RASC)
Open bedrock barrens in Muskoka with wide sky in every direction and a recognized dark-sky preserve since 1999. Nearest dark site to the north.
Bruce Peninsula National Park
Dark-Sky Preserve (RASC)
Lake Huron shoreline and cliffs on the Georgian Bay side with little surrounding development, so the northern view is open over water.
Other cities in Canada
Ottawa
Montreal
Winnipeg
Regina
Saskatoon
Edmonton
Plan your trip
Northern Lights in Toronto: Quick Guide
How often can you see the northern lights in Toronto?
What Kp do I need to see the northern lights in Toronto?
Can I see the northern lights tonight in Toronto?
Where should I look for the northern lights in Toronto?
What time is best tonight in Toronto?
Free app for iPhone and Android
Know when the sky is worth your time
The forecast on this page, watching your location all night and telling you when to step outside.
The hour tonight when Kp, clouds and darkness line up for your spot.
A push alert 30–90 minutes before the aurora reaches your sky, even at 2 AM.
Where the clouds open nearby, so you know which way to drive.
Learn more about the northern lights
How to See the Northern Lights: A Beginner's Guide
Three conditions decide whether you see the northern lights: activity at your latitude, a clear sky and darkness. Here is how to check each one.
Aurora Colors and What They Mean
Green, red, blue, purple and pink aurora explained: which gas makes each color, how high it glows, and why your camera shows more than your eyes.
Northern Lights in Canada: Best Places
The best places to see the northern lights in Canada: Yellowknife, Whitehorse, Churchill, Jasper and the prairies, plus what Ontario and Quebec get.
Northern Lights in Scotland
Where to see the northern lights in Scotland: north coast, islands, Cairngorms and dark sky parks, when the sky is dark enough, and how to beat cloud.
Northern Lights in Norway
Where to see the northern lights in Norway, which months work, why the coast and inland need different plans, and what Oslo gets in a storm.
Aurora Australis Forecast Guide
How to read a forecast for the southern lights: Kp, Bz, the southern oval, darkness, moon and cloud, plus where to look in Tasmania and southern Australia.
Kp index today
Live Kp, the 3-day and 27-day forecast, and what Kp each city needs.
Geomagnetic storm today
G-scale now, the storm outlook and how far south the aurora reaches.