Rule
Dark Skies
Luleå - Dark Skies - Swedish Lapland
Luleå, Norrbotten, Sweden
Moonless nights with crystal-clear skies for deep-sky photography
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Europe/Stockholm
Next opportunity
Good Dark Skies
Luleå
Sat, Mar 21 · 01:00–02:22 · 1h window
Low confidence
28%
🌛Moon Altitude-10.8--10°
☁️Total Cloud Coverage13.3-17.5%
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72-hour requirements breakdown
What passed or failed, hour by hour0matching hours in the next 92 hours
OR logic: one branch per group is enough
Meets requirement
Misses requirement
Time Europe/Stockholm | 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° |
|---|---|---|---|---|---|---|
| Thu, Mar 12 | ||||||
| 05:00 | ✕ | 100% | 464m | 0% | 39% | -5° |
| 06:00 | ✕ | 100% | 310m | 0% | 39% | -4° |
| 07:00 | ✕ | 100% | 318m | 0% | 39% | -4.3° |
| 08:00 | ✕ | 100% | 408m | 0% | 39% | -5.9° |
| 09:00 | ✕ | 100% | 542m | 0% | 39% | -8.8° |
| 10:00 | ✕ | 100% | 533m | 0% | 39% | -13° |
| 11:00 | ✕ | 100% | 370m | 0% | 39% | -17° |
| 12:00 | ✕ | 100% | 234m | 0% | 39% | -23° |
| 13:00 | ✕ | 100% | 8515m | 0% | 39% | -29° |
| 14:00 | ✕ | 100% | 24135m | 0% | 39% | -35° |
| 15:00 | ✕ | 100% | 24134m | 0% | 39% | -40° |
| 16:00 | ✕ | 100% | 24135m | 0% | 39% | -45° |
| 17:00 | ✕ | 75% | 24134m | 0% | 39% | -49° |
| 18:00 | ✕ | 100% | 24135m | 0% | 39% | -52° |
| 19:00 | ✕ | 100% | 24134m | 0% | 39% | -52° |
| 20:00 | ✓ | 100% | 298m | 7.4% | 39% | -50° |
| 21:00 | ✓ | 100% | 8420m | 15% | 39% | -47° |
| 22:00 | ✓ | 100% | 24135m | 22% | 39% | -42° |
| 23:00 | ✓ | 100% | 24134m | 33% | 39% | -36° |
| Fri, Mar 13 | ||||||
| 24:00 | ✓ | 99% | 24135m | 45% | 39% | -30° |
| 01:00 | ✕ | 100% | 24135m | 56% | 30% | -24° |
| 02:00 | ✕ | 100% | 24135m | 41% | 30% | -19° |
| 03:00 | ✕ | 100% | 23190m | 27% | 30% | -13° |
| 04:00 | ✕ | 100% | 64m | 12% | 30% | -9.1° |
| 05:00 | ✕ | 100% | 24135m | 21% | 30% | -5.8° |
| 06:00 | ✕ | 100% | 24135m | 30% | 30% | -3.6° |
| 07:00 | ✕ | 100% | 24134m | 39% | 30% | -2.7° |
| 08:00 | ✕ | 100% | 24135m | 49% | 30% | -3.2° |
| 09:00 | ✕ | 100% | 24134m | 59% | 30% | -5° |
| 10:00 | ✕ | 100% | 24134m | 69% | 30% | -7.9° |
| 11:00 | ✕ | 100% | 24135m | 76% | 30% | -12° |
| 12:00 | ✕ | 100% | 24135m | 83% | 30% | -17° |
| 13:00 | ✕ | 100% | 8298m | 90% | 30% | -22° |
| 14:00 | ✕ | 100% | 275m | 76% | 30% | -28° |
| 15:00 | ✕ | 100% | 8922m | 63% | 30% | -34° |
| 16:00 | ✕ | 100% | 3956m | 49% | 30% | -40° |
| 17:00 | ✕ | 100% | 24134m | 49% | 30% | -44° |
| 18:00 | ✕ | 100% | 24135m | 49% | 30% | -48° |
| 19:00 | ✕ | 100% | 24135m | 49% | 30% | -50° |
| 20:00 | ✓ | 100% | 24135m | 33% | 30% | -50° |
| 21:00 | ✓ | 100% | 24135m | 16% | 30% | -48° |
| 22:00 | ✓ | 100% | 24134m | 0% | 30% | -44° |
| 23:00 | ✓ | 100% | 24134m | 0% | 30% | -39° |
| Sat, Mar 14 | ||||||
| 24:00 | ✓ | 100% | 24134m | 0% | 30% | -33° |
| 01:00 | ✓ | 100% | 24135m | 0% | 22% | -27° |
| 02:00 | ✓ | 71% | 24135m | 0% | 22% | -21° |
| 03:00 | ✕ | 35% | 24135m | 0% | 22% | -16° |
| 04:00 | ✕ | 5% | 24135m | 0% | 22% | -11° |
| 05:00 | ✕ | 15% | 24134m | 0% | 22% | -6.3° |
| 06:00 | ✕ | 5.1% | 24134m | 0% | 22% | -3° |
| 07:00 | ✕ | 67% | 24135m | 0% | 22% | -0.88° |
| 08:00 | ✕ | 27% | 24134m | 0% | 22% | -0.13° |
| 09:00 | ✕ | 100% | 24135m | 0% | 22% | -0.74° |
| 10:00 | ✕ | 100% | 24135m | 0% | 22% | -2.7° |
| 11:00 | ✕ | 100% | 24134m | 0% | 22% | -5.8° |
| 12:00 | ✕ | 100% | 24135m | 0% | 22% | -10° |
| 13:00 | ✕ | 89% | 24134m | 0% | 22% | -15° |
| 14:00 | ✕ | 69% | 24135m | 0% | 22% | -21° |
| 15:00 | ✕ | 20% | 24135m | 0% | 22% | -26° |
| 16:00 | ✕ | 97% | 24135m | 0% | 22% | -32° |
| 17:00 | ✕ | 100% | 24134m | 0% | 22% | -38° |
| 18:00 | ✕ | 100% | 24135m | 0% | 22% | -42° |
| 19:00 | ✕ | 100% | 24134m | 0% | 22% | -45° |
| 20:00 | ✓ | 100% | 24134m | 6.7% | 22% | -47° |
| 21:00 | ✓ | 100% | 24135m | 13% | 22% | -47° |
| 22:00 | ✓ | 100% | 24135m | 20% | 22% | -44° |
| 23:00 | ✓ | 100% | 24134m | 30% | 22% | -40° |
| Sun, Mar 15 | ||||||
| 24:00 | ✓ | 100% | 24135m | 40% | 22% | -35° |
| 01:00 | ✓ | 100% | 24134m | 50% | 14% | -29° |
| 02:00 | ✓ | 100% | 24135m | 47% | 14% | -23° |
| 03:00 | ✕ | 100% | 6165m | 43% | 14% | -17° |
| 04:00 | ✕ | 100% | 2951m | 40% | 14% | -11° |
| 05:00 | ✕ | 100% | 1769m | 37% | 14% | -6.3° |
| 06:00 | ✕ | 100% | 4611m | 34% | 14% | -2° |
| 07:00 | ✕ | 100% | 8691m | 31% | 14% | 1.2° |
| 08:00 | ✕ | 100% | 5829m | 40% | 14% | 3.2° |
| 09:00 | ✕ | 100% | 2968m | 48% | 14% | 3.8° |
| 10:00 | ✕ | 100% | 106m | 57% | 14% | 2.9° |
| 11:00 | ✕ | 100% | 88m | 63% | 14% | 0.75° |
| 12:00 | ✕ | 100% | 69m | 69% | 14% | -2.6° |
| 13:00 | ✕ | 100% | 51m | 74% | 14% | -7° |
| 14:00 | ✕ | 100% | 52m | 70% | 14% | -12° |
| 15:00 | ✕ | 100% | 54m | 66% | 14% | -18° |
| 16:00 | ✕ | 100% | 56m | 61% | 14% | -24° |
| 17:00 | ✕ | 100% | 63m | 58% | 14% | -29° |
| 18:00 | ✕ | 100% | 71m | 55% | 14% | -34° |
| 19:00 | ✕ | 100% | 79m | 52% | 14% | -39° |
| 20:00 | ✓ | 99% | 103m | 48% | 14% | -42° |
| 21:00 | ✓ | 98% | 127m | 44% | 14% | -43° |
| 22:00 | ✓ | 97% | 151m | 40% | 14% | -42° |
| 23:00 | ✓ | 95% | 8146m | 60% | 14% | -39° |
| Mon, Mar 16 | ||||||
| 24:00 | ✓ | 94% | 16140m | 80% | 14% | -35° |
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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