Tonight
May 21 - May 22
- 11 °C
38 percent cloud cover - 9 °C
0 percent cloud cover - 7 °C0 percent cloud cover
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Northern Lights Forecast for Ottawa
Ottawa, Ontario, Canada
45°25′17.4″N ⋅ 75°41′49.9″W
Aurora data last updated at
Current local time:
No significant aurora activity is expected in Ottawa over the next 24 hours. Sky will be dark from 9:54 PM to 4:03 AM local time. Cloud cover around that time looks clear skies at around 0%.
Aurora Forecast for Ottawa
Today at 5:00 PM
No activity
Cloud Cover:11%
Aurora activity
High clouds
Middle clouds
Low clouds
Fog
Aurora activity
High clouds
Middle clouds
Low clouds
Fog
Hourly aurora forecast for Ottawa
| Local time | Aurora activity |
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| No activity | |
| No activity | |
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| No activity | |
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3-Night Weather Forecast for Ottawa
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Tomorrow night
May 22 - May 23
- 15 °C63 percent cloud cover
- 12 °C98 percent cloud cover
- 10 °C100 percent cloud cover
Saturday night
May 23 - May 24
- 16 °C
100 percent cloud cover - 14 °C100 percent cloud cover
- 13 °C
100 percent cloud cover
Sun & Moon
Sunset
Sunrise
Dark from 09:54 PM to 04:03 AM (6 h 9 min)
Current Moon
First Quarter
32% illumination
Refresh to load today's sun path.
Long-Term Aurora Forecast for Ottawa
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
Thursday, May 21, 2026. Today. No aurora activity. Aurora score 0 out of 10. Waxing crescent, 29% illumination | Friday, May 22, 2026. No aurora activity. Aurora score 0 out of 10. First quarter, 40% illumination | Saturday, May 23, 2026. No aurora activity. Aurora score 0 out of 10. First quarter, 50% illumination | Sunday, May 24, 2026. No aurora activity. Aurora score 0 out of 10. First quarter, 61% illumination | |||
Monday, May 25, 2026. No aurora activity. Aurora score 0 out of 10. Waxing gibbous, 71% illumination | Tuesday, May 26, 2026. No aurora activity. Aurora score 0 out of 10. Waxing gibbous, 79% illumination | Wednesday, May 27, 2026. No aurora activity. Aurora score 0 out of 10. Waxing gibbous, 87% illumination | Thursday, May 28, 2026. No aurora activity. Aurora score 0 out of 10. Waxing gibbous, 93% illumination | Friday, May 29, 2026. No aurora activity. Aurora score 0 out of 10. Full moon, 97% illumination | Saturday, May 30, 2026. No aurora activity. Aurora score 0 out of 10. Full moon, 99% illumination | Sunday, May 31, 2026. No aurora activity. Aurora score 0 out of 10. Full moon, 100% illumination |
Monday, June 1, 2026. No aurora activity. Aurora score 0 out of 10. Full moon, 99% illumination | Tuesday, June 2, 2026. No aurora activity. Aurora score 0 out of 10. Waning gibbous, 96% illumination | Wednesday, June 3, 2026. No aurora activity. Aurora score 0 out of 10. Waning gibbous, 91% illumination | Thursday, June 4, 2026. No aurora activity. Aurora score 0 out of 10. Waning gibbous, 85% illumination | Friday, June 5, 2026. No aurora activity. Aurora score 0 out of 10. Waning gibbous, 78% illumination | Saturday, June 6, 2026. No aurora activity. Aurora score 0 out of 10. Last quarter, 69% illumination | Sunday, June 7, 2026. No aurora activity. Aurora score 0 out of 10. Last quarter, 60% illumination |
Monday, June 8, 2026. No aurora activity. Aurora score 0 out of 10. Last quarter, 49% illumination | Tuesday, June 9, 2026. No aurora activity. Aurora score 0 out of 10. Last quarter, 39% illumination | Wednesday, June 10, 2026. No aurora activity. Aurora score 0 out of 10. Waning crescent, 28% illumination | Thursday, June 11, 2026. No aurora activity. Aurora score 0 out of 10. Waning crescent, 19% illumination | Friday, June 12, 2026. No aurora activity. Aurora score 0 out of 10. Waning crescent, 10% illumination | Saturday, June 13, 2026. No aurora activity. Aurora score 0 out of 10. Waning crescent, 4% illumination | Sunday, June 14, 2026. No aurora activity. Aurora score 0 out of 10. New moon, 1% illumination |
Monday, June 15, 2026. No aurora activity. Aurora score 0 out of 10. New moon, 0% illumination | Tuesday, June 16, 2026. No aurora activity. Aurora score 0 out of 10. New moon, 3% illumination | Wednesday, June 17, 2026. No aurora activity. Aurora score 0 out of 10. Waxing crescent, 8% illumination |
LowAurora ActivityHigh
Seeing the Aurora in Ottawa
Located in the Ontario region of Canada, Ottawa is a notable destination for night sky watchers. At a latitude of 45.4°, you will need a historically massive solar event to push the lights this far south. Keep a close eye on space weather forecasts and be ready to travel to darker skies if a severe storm hits.
FAQ
What Kp index do I need to see the northern lights in Ottawa?
In Ottawa, you usually need at least Kp 6 to have a reasonable chance of seeing the northern lights. Lower Kp can still bring a faint aurora display low on the northern horizon, but it is less common.
This is based on magnetic latitude, and Kp index is a global geomagnetic index, so treat it as a rule of thumb, not a location-specific guarantee.
Tonight, the NOAA Kp index forecast is 1.7 to 2.7. That is below the usual Kp index threshold for Ottawa, so seeing the aurora is unlikely.