Best time to see the northern lights in Nunavut, Canada
Updated • 21:02 UTC
Nunavut gets the aurora on 68.8 clear nights in a typical year at Rankin Inlet, its strongest of 2 tracked locations. February is the best month at 12.79 of them, and nights were counted at Kp 1 or higher, which the planetary index last reached on 7 September 2026.
Typical-year figures: a 1996–2026 planetary Kp record crossed with a 2001–2020 cloud normal. They describe a normal year, not tonight — the live Rankin Inlet forecast shows the actual cloud, moon and darkness right now. Check tonight's forecast for Rankin Inlet →
🌌 Clear nights a year
68.8
Excellent — 68.8 clear aurora nights in a typical year Compare with Canada
🌟 Best Month
February
12.79 clear nights in a typical year
🌙 Peak Hours
22:00-02:00
Magnetic midnight
⚡ Required Kp
Kp 1.0–3.0
Served for the live forecast; nights counted at Kp 1, last reached 7 September 2026
📍 Strongest location
Aurora on 68.8 clear nights a year, against 63.8 at the weakest of 2 tracked locations
Month by month in Nunavut
Astronomical darkness, the nights on which planetary Kp reached Kp 1 inside that darkness, the local cloud normal, and what the cloud leaves of the count.
| Month | Astronomical darkness | Opportunity nights | Mean cloud | Clear opportunity nights | Moon-free |
|---|---|---|---|---|---|
| January | 12.05h | 27.67 | 55.3% | 53.2% | |
| February | 9.95h | 25.32 | 49.5% | 53.8% | |
| March | 6.68h | 25.61 | 55% | 55% | |
| April | 2.89h on 39.5% of nights | 5.57 | 68.1% | 54.4% | |
| May | No astronomical darkness | — | 83% | — | — |
| June | No astronomical darkness | — | 77.2% | — | — |
| July | No astronomical darkness | — | 62.6% | — | — |
| August | 1.47h on 10% of nights | 0 | 65.5% | — | |
| September | 5.24h | 22.71 | 72% | 58.3% | |
| October | 9.08h | 25.71 | 80.8% | 55.4% | |
| November | 11.57h | 24.57 | 65.6% | 54.7% | |
| December | 12.7h | 24.77 | 57.3% | 53.3% |
May, June and July never reach astronomical darkness at Rankin Inlet, so no Kp value makes them viewing months and they are excluded rather than scored.
Opportunity nights are the whole 1996–2026 record. In the current solar cycle alone (since 2023), February has averaged 29.04 rather than 25.32.
- February: 9.95h of astronomical darkness a night
- February: 25.32 nights reach the Kp threshold inside that darkness
- February: 49.5% mean cloud leaves 12.79 of them clear
- February: 53.8% of those nights are moon-free
Similar timing: Bear Island , Kaktovik , Inuvik
Higher-odds destinations: Fairbanks , Yellowknife , Tromsø
Every tracked location in Nunavut
All 2 of them, strongest first. The month column is each location's own best month with its clear nights; the Kp is the threshold its live forecast serves.
| Location | Clear nights a year | Best month | Kp needed |
|---|---|---|---|
| Rankin Inlet | 68.8 | February (12.79) | Kp 1 |
| Iqaluit | 63.8 | January (12.14) | Kp 1 |
How these numbers were made
- Evaluated at
- Rankin Inlet, 62.8097° N 92.0895° W — darkness and cloud are properties of that point, not of a region.
- Darkness
- Sun at or below 18° under the horizon (astronomical twilight), sampled every 10 minutes across every year of the Kp record and averaged per night of each month rather than on one representative day.
- Geomagnetic record
- GFZ Potsdam planetary Kp index, 3-hourly, 1996–2026 — 89,662 intervals, licensed CC BY 4.0.
- Cloud
- NASA POWER 20-year monthly climatology (2001–2020), parameter CLOUD_AMT. A monthly mean, not a forecast.
- Moon
- A night counts as moon-free below 35% lunar illumination while the moon is up.
- Auroral oval
- NOAA auroral-oval model, equatorward boundary near magnetic latitude 67 − 2 × Kp. A model estimate shown beside the measured record; it never replaces it.
- Clear opportunity nights
- Nights on which at least one 3-hour Kp interval falls inside local astronomical darkness and reaches the count threshold, scaled by one minus the monthly mean cloud amount.
- Kp threshold
- Nights were counted per location, from Kp 1 at the northern end to Kp 1 at the southern end of the region; Rankin Inlet counts at Kp 1. The Required Kp shown above, Kp 1, is the threshold the live Rankin Inlet forecast serves.
- Dataset version
- Version 2026-09-07, computed offline from the closed record — the page is regenerated, not forecast.
Kp record: GFZ Potsdam (CC BY 4.0). Cloud normal: NASA POWER. How the live forecast is built: methodology page.
Frequently Asked Questions
When can you see the northern lights in Nunavut?
February is the best month, with 12.79 clear nights in a typical year out of 68.8 across the whole year. Every month except May, June, July and August carries some chance. May, June and July never reach astronomical darkness, so no Kp value makes them viewing months.
What Kp is needed to see the aurora from Nunavut?
Nunavut needs Kp 1 or higher for aurora, Kp 2 for a noticeable display and Kp 3 for a bright one. The NOAA auroral-oval model places the oval overhead at Nunavut once the planetary index reaches Kp 1. That is a model estimate; the dates on this page come from the measured Kp record instead.
Has the aurora ever been visible from Nunavut?
Yes. In the 1996–2026 planetary Kp record the index reached Kp 1, the threshold these nights were counted at for Nunavut, most recently on 7 September 2026. Whether anyone saw it also depended on the cloud, moonlight and darkness of that night, which the Kp record does not carry.
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