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Rule Northern Lights

Aurora at Kirkjufell

Snæfellsnes, Iceland

Get notified when aurora activity peaks under clear, dark skies—ideal conditions for capturing the Northern Lights.

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Atlantic/Reykjavik
Next opportunity
Northern Lights
Tomorrow · 02:00–04:00 · 2h window
Low confidence
32%
Northern Lights
Tue, Jan 13 · 24:00–10:00
High
Northern Lights
Tue, Jan 13 · 10:00–11:00
Medium
Northern Lights
Tue, Jan 13 · 18:00–09:00
High
Northern Lights
Wed, Jan 14 · 09:00–10:00
Medium
Northern Lights
Wed, Jan 14 · 18:00–24:00
High
+1 more windows in the next 14 days

What this forecast looks for

Plain-language explanation from the rule

Aurora Quality combines multiple factors to predict northern lights visibility:

  • Geomagnetic Activity (Kp Index): Higher Kp means stronger aurora
  • Cloud Cover: Clear skies are essential for viewing
  • Moon Phase: Less moonlight means darker skies
  • Location Latitude: Higher latitudes see aurora more frequently

The score ranges from 0-100%, where 60%+ indicates good aurora conditions.

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72-hour requirements breakdown

What passed or failed, hour by hour
2matching hours in the next 72 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Atlantic/Reykjavik
Aurora Quality
≥ 50.0%
Fri, Jan 9
06:0022%
07:0021%
08:0022%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Sat, Jan 10
24:000%
01:000%
02:0053%
03:0057%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:0035%
19:0041%
20:0041%
21:0043%
22:0043%
23:0043%
Sun, Jan 11
24:0043%
01:0043%
02:0043%
03:0039%
04:0033%
05:0039%
06:0041%
07:0041%
08:0035%
09:0040%
10:0023%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:0023%
22:0028%
23:0023%
Mon, Jan 12
24:0027%
01:000%
02:000%
03:000%
04:000%
05:000%
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Aurora Quality mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time
Atlantic/Reykjavik
Aurora Activity
%
OVATION Aurora Probability
%
Solar Elevation
°
Total Cloud Coverage
%
Visibility
m
Fri, Jan 9 Sunrise 11:25 Sunset 15:56
07:00
38% 11% -24° 15% 50000m
08:00
38% 11% -18° 0% 50000m
09:00
100% - -12° 99% 39400m
10:00
100% - -6.6° 100% 24460m
11:00
100% - -2.1° 1% 24000m
12:00
45% - 1.3° 0% 24700m
13:00
45% - 2.9° 1% 26720m
14:00
45% - 3.2° 100% 20080m
15:00
22% - 2° 100% 23140m
16:00
22% - -0.68° 16% 25300m
17:00
22% - -4.9° 17% 50000m
18:00
22% - -9.9° 96% 17280m
19:00
22% - -16° 100% 19120m
20:00
22% - -22° 59% 50000m
21:00
36% - -28° 100% 18940m
22:00
36% - -34° 100% 24320m
23:00
36% - -40° 100% 14860m
Sat, Jan 10 Sunrise 11:23 Sunset 15:59
24:00
36% - -44° 100% 50000m
01:00
36% - -47° 58% 19240m
02:00
36% - -47° 0% 50000m
03:00
45% - -45° 6% 24320m
04:00
45% - -41° 100% 50000m
05:00
45% - -36° 100% 50000m
06:00
28% - -30° 100% 50000m
07:00
28% - -24° 100% 21440m
08:00
28% - -18° 100% 50000m
09:00
22% - -12° 100% 50000m
10:00
22% - -6.5° 100% 2340m
11:00
22% - -2° 100% 50000m
12:00
12% - 1.4° 100% 18860m
13:00
12% - 3.1° 100% 20620m
14:00
12% - 3.3° 100% 50000m
15:00
8.2% - 2.1° 100% 50000m
16:00
8.2% - -0.45° 0% 50000m
17:00
8.2% - -4.7° 0% 50000m
18:00
12% - -9.7° 0% 40600m
19:00
12% - -15° 0% 50000m
20:00
12% - -22° 0% 42160m
21:00
16% - -28° 0% 44500m
22:00
16% - -34° 8% 42220m
23:00
16% - -40° 0% 42140m
Sun, Jan 11 Sunrise 11:20 Sunset 16:02
24:00
16% - -44° 0% 46940m
01:00
16% - -46° 0% 50000m
02:00
16% - -47° 0% 50000m
03:00
8.2% - -45° 2% 50000m
04:00
8.2% - -41° 29% 50000m
05:00
8.2% - -36° 0% 37600m
06:00
12% - -30° 0% 40640m
07:00
12% - -24° 2% 40420m
08:00
12% - -18° 21% 50000m
09:00
12% - -12° 7% 27955m
10:00
12% - -6.4° 24% 26120m
11:00
12% - -1.9° 55% 14990m
12:00
16% - 1.5° 98% 5040m
13:00
16% - 3.2° 96% 8000m
14:00
16% - 3.5° 80% 11860m
15:00
12% - 2.3° 56% 17660m
16:00
12% - -0.17° 51% 22960m
17:00
12% - -4.5° 86% 16840m
18:00
12% - -9.6° 92% 33120m
19:00
12% - -15° 90% 9080m
20:00
12% - -22° 56% 3280m
21:00
12% - -28° 38% 2180m
22:00
12% - -34° 24% 2420m
23:00
12% - -39° 38% 2300m
Mon, Jan 12 Sunrise 11:18 Sunset 16:05
24:00
22% - -44° 38% 3100m
01:00
22% - -46° 66% 3880m
02:00
22% - -47° 76% 16580m
03:00
22% - -45° 87% 23540m
04:00
22% - -41° 84% 49900m
05:00
22% - -36° 79% 44100m
06:00
22% - -30° 97% 40320m
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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