Northern Lights Tonight in Ottawa, Ontario
Tonight in Ottawa: aurora is unlikely. Kp peaks at 3.7, below the local Kp 4.8 threshold; clouds 100%. Next possible window: Nov 17.
Visibility now
UnlikelyKp 2.0 now (quiet); this spot needs Kp 4.8+.
Kp: NOAA SWPC · Oval: NOAA OVATION · Clouds: Open-Meteo · Updated every 15 minutes.
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Ottawa 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 | 100% |
| 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?
The first night in the NOAA outlook that reaches Ottawa's Kp 4.8 is Nov 17.
~36 aurora nights per year
Dark nights when Kp reached 4.8, average of the last three years (GFZ Potsdam). Clouds not counted.
Average nights per month since 2015. Best months to visit: Mar, Sep.
Tonight's best window
If activity picks up, watch10 PM – 12 AM EST, look north, low on the horizon.
Fully dark from 6:20 PM to 5:12 AM EST.
Why this forecast?
Aurora Borealis Viewing in Ottawa
Ottawa sits in the middle of the pack for aurora in Canada. The threshold of 4.8 means a moderate to strong storm, and in a typical winter that gives you a few chances. The capital is cold and often clear after a front passes, but snow squalls and long gray spells can close the sky for days.
The city's own light is the main limit. The downtown core and the suburbs of Kanata and Orleans spread a glow across the valley floor, and the Gatineau Hills across the Ottawa River add a ridge to the north. The ridge can cut the low part of the view from the city side. You can often catch a strong display from the Greenbelt farmland on the edge of town if you face away from the downtown towers.
Locals who want a real dark sky head west and south-west toward North Frontenac, where the valley turns to forest and lakes. Others go north into Gatineau Park, across the river. Check for cloud first, then drive. A short trip beyond the suburbs is enough on a strong night; a bigger drive pays off on a moderate one.
For the whole picture, check the northern lights tonight overview or the live aurora map.
Dark-sky spots near Ottawa
North Frontenac Astronomy Park
Dark-Sky Preserve (RASC), North Frontenac Township
Observation pad near Plevna in the first municipality in Canada to earn dark-sky preserve status (2013), covering the whole township.
Gatineau Park
Large park in the hills across the Ottawa River. Farther from the city than the Greenbelt, with some northern view from open lakes and lookouts; no dark-sky designation.
Other cities in Canada
Montreal
Toronto
Winnipeg
Regina
Saskatoon
Edmonton
Plan your trip
Northern Lights in Ottawa: Quick Guide
How often can you see the northern lights in Ottawa?
What Kp do I need to see the northern lights in Ottawa?
Can I see the northern lights tonight in Ottawa?
Where should I look for the northern lights in Ottawa?
What time is best tonight in Ottawa?
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.