Rule
Dark Skies
Tromso - Dark Skies - Norwegian Fjords
Tromsø, Troms, Norway
Moonless nights with crystal-clear skies for Milky Way shots
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/Oslo
Next opportunity
Dark Skies
Tromso
Tomorrow · 18:00–19:00 · 1h window
Medium confidence
58%
Dark Skies
Tromso
Tomorrow · 23:00–01:00
Medium
Dark Skies
Tromso
Fri, Jan 16 · 22:00–02:00
Medium
Dark Skies
Tromso
Wed, Jan 21 · 18:00–21:00
Low
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72-hour requirements breakdown
What passed or failed, hour by hourOR logic: one branch per group is enough
Meets requirement
Misses requirement
Time Europe/Oslo | Astronomical Night Any | Total Cloud Coverage ≤ 20.0% | Visibility ≥ 12000.0m | Precipitation Chance ≤ 10.0% | Moon Illumination OR1·B1≤ 35.0% | Moon Altitude OR1·B2≤ 10.0° |
|---|---|---|---|---|---|---|
| Sun, Jan 11 | ||||||
| 19:00 | ✓ | 2% | 360m | 0% | 41% | -37° |
| 20:00 | ✓ | 0% | 140m | 0% | 41% | -35° |
| 21:00 | ✓ | 3% | 220m | 0% | 41% | -32° |
| 22:00 | ✓ | 65% | 280m | 0% | 41% | -28° |
| 23:00 | ✓ | 15% | 300m | 0% | 41% | -24° |
| Mon, Jan 12 | ||||||
| 24:00 | ✓ | 0% | 560m | 0% | 41% | -19° |
| 01:00 | ✓ | 1% | 360m | 0% | 33% | -14° |
| 02:00 | ✓ | 0% | 380m | 0% | 33% | -9.3° |
| 03:00 | ✓ | 0% | 360m | 0% | 33% | -5.3° |
| 04:00 | ✓ | 0% | 360m | 0% | 33% | -2° |
| 05:00 | ✓ | 0% | 360m | 0% | 33% | 0.26° |
| 06:00 | ✓ | 0% | 360m | 0% | 33% | 1.5° |
| 07:00 | ✕ | 0% | 360m | 0% | 33% | 1.5° |
| 08:00 | ✕ | 0% | 360m | 0% | 33% | 0.25° |
| 09:00 | ✕ | 0% | 340m | 0% | 33% | -2.1° |
| 10:00 | ✕ | 0% | 360m | 0% | 33% | -5.4° |
| 11:00 | ✕ | 0% | 480m | 0% | 33% | -9.6° |
| 12:00 | ✕ | 0% | 520m | 0% | 33% | -14° |
| 13:00 | ✕ | 9% | 420m | 0% | 33% | -19° |
| 14:00 | ✕ | 52% | 1780m | 0% | 33% | -25° |
| 15:00 | ✕ | 79% | 50520m | 0% | 33% | -30° |
| 16:00 | ✕ | 77% | 50520m | 0% | 33% | -34° |
| 17:00 | ✓ | 38% | 50520m | 0% | 33% | -38° |
| 18:00 | ✓ | 17% | 50520m | 0% | 33% | -40° |
| 19:00 | ✓ | 40% | 50520m | 0% | 33% | -41° |
| 20:00 | ✓ | 29% | 2040m | 0% | 33% | -41° |
| 21:00 | ✓ | 8% | 2040m | 0% | 33% | -39° |
| 22:00 | ✓ | 9% | 2380m | 0% | 33% | -35° |
| 23:00 | ✓ | 13% | 50180m | 0% | 33% | -31° |
| Tue, Jan 13 | ||||||
| 24:00 | ✓ | 9% | 50520m | 0% | 33% | -26° |
| 01:00 | ✓ | 21% | 50520m | 0% | 24% | -21° |
| 02:00 | ✓ | 36% | 50520m | 0% | 24% | -17° |
| 03:00 | ✓ | 20% | 1600m | 0% | 24% | -12° |
| 04:00 | ✓ | 1% | 1200m | 0% | 24% | -8.4° |
| 05:00 | ✓ | 0% | 460m | 0% | 24% | -5.4° |
| 06:00 | ✓ | 0% | 420m | 0% | 24% | -3.4° |
| 07:00 | ✕ | 0% | 420m | 0% | 24% | -2.5° |
| 08:00 | ✕ | 0% | 400m | 0% | 24% | -2.8° |
| 09:00 | ✕ | 0% | 400m | 0% | 24% | -4.2° |
| 10:00 | ✕ | 0% | 380m | 0% | 24% | -6.7° |
| 11:00 | ✕ | 0% | 360m | 0% | 24% | -10° |
| 12:00 | ✕ | 24% | 320m | 0% | 24% | -14° |
| 13:00 | ✕ | 48% | 320m | 0% | 24% | -19° |
| 14:00 | ✕ | 70% | 340m | 0% | 24% | -24° |
| 15:00 | ✕ | 94% | 360m | 0% | 24% | -29° |
| 16:00 | ✕ | 96% | 380m | 0% | 24% | -34° |
| 17:00 | ✓ | 97% | 380m | 0% | 24% | -39° |
| 18:00 | ✓ | 97% | 400m | 0% | 24% | -42° |
| 19:00 | ✓ | 96% | 400m | 0% | 24% | -44° |
| 20:00 | ✓ | 96% | 380m | 0% | 24% | -45° |
| 21:00 | ✓ | 97% | 400m | 0% | 24% | -44° |
| 22:00 | ✓ | 96% | 440m | 0% | 24% | -41° |
| 23:00 | ✓ | 97% | 440m | 0% | 24% | -38° |
| Wed, Jan 14 | ||||||
| 24:00 | ✓ | 98% | 480m | 0% | 24% | -33° |
| 01:00 | ✓ | 98% | 540m | 0% | 16% | -28° |
| 02:00 | ✓ | 99% | 580m | 0% | 16% | -24° |
| 03:00 | ✓ | 100% | 540m | 0% | 16% | -19° |
| 04:00 | ✓ | 100% | 560m | 0% | 16% | -14° |
| 05:00 | ✓ | 100% | 560m | 0% | 16% | -11° |
| 06:00 | ✓ | 100% | 600m | 0% | 16% | -8.1° |
| 07:00 | ✕ | 100% | 1240m | 0% | 16% | -6.2° |
| 08:00 | ✕ | 100% | 46160m | 1% | 16% | -5.6° |
| 09:00 | ✕ | 100% | 56500m | 3% | 16% | -6° |
| 10:00 | ✕ | 100% | 55260m | 4% | 16% | -7.6° |
| 11:00 | ✕ | 100% | 60600m | 3% | 16% | -10° |
| 12:00 | ✕ | 71% | 64780m | 1% | 16% | -14° |
| 13:00 | ✕ | 38% | 60120m | 0% | 16% | -18° |
| 14:00 | ✕ | 93% | 50500m | 0% | 16% | -23° |
| 15:00 | ✕ | 70% | 1160m | 0% | 16% | -28° |
| 16:00 | ✕ | 58% | 1260m | 0% | 16% | -33° |
| 17:00 | ✓ | 100% | 560m | 0% | 16% | -38° |
| 18:00 | ✓ | 100% | 520m | 0% | 16% | -42° |
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity). For OR groups, only one branch is required, so some OR-branch predicates can be ✕ even in a matching hour.
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