Rule
Dark Skies
Luosto - Dark Skies - Finnish Lapland
Luosto, Lapland, Finland
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/Helsinki
Next opportunity
Pristine Dark Skies (pristine)
Luosto
Tomorrow · 23:00–03:00 · 4h window
Medium confidence
40%
🌛Moon Altitude-0.7-7.9°
☁️Total Cloud Coverage4.8-5.5%
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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/Helsinki | 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° |
|---|---|---|---|---|---|---|
| Wed, Mar 4 | ||||||
| 07:00 | ✕ | 88% | 317m | 73% | 99% | 1.2° |
| 08:00 | ✕ | 98% | 354m | 82% | 99% | -4.6° |
| 09:00 | ✕ | 100% | 1027m | 68% | 99% | -10° |
| 10:00 | ✕ | 100% | 825m | 53% | 99% | -15° |
| 11:00 | ✕ | 100% | 970m | 39% | 99% | -19° |
| 12:00 | ✕ | 100% | 493m | 45% | 99% | -21° |
| 13:00 | ✕ | 100% | 667m | 50% | 99% | -23° |
| 14:00 | ✕ | 100% | 2721m | 56% | 99% | -22° |
| 15:00 | ✕ | 92% | 5335m | 26% | 99% | -20° |
| 16:00 | ✕ | 96% | 2586m | 13% | 99% | -17° |
| 17:00 | ✕ | 87% | 5660m | 0% | 99% | -13° |
| 18:00 | ✕ | 81% | 7371m | 0% | 99% | -8° |
| 19:00 | ✕ | 85% | 7153m | 0% | 99% | -2.7° |
| 20:00 | ✓ | 97% | 5436m | 0% | 99% | 2.7° |
| 21:00 | ✓ | 87% | 4146m | 0% | 99% | 7.9° |
| 22:00 | ✓ | 89% | 2250m | 0% | 99% | 12° |
| 23:00 | ✓ | 90% | 1741m | 0% | 99% | 16° |
| Thu, Mar 5 | ||||||
| 24:00 | ✓ | 89% | 1625m | 0% | 99% | 19° |
| 01:00 | ✓ | 90% | 1566m | 0% | 99% | 20° |
| 02:00 | ✕ | 99% | 1626m | 0% | 96% | 20° |
| 03:00 | ✕ | 99% | 1595m | 1.2% | 96% | 18° |
| 04:00 | ✕ | 99% | 1690m | 2.3% | 96% | 15° |
| 05:00 | ✕ | 100% | 1712m | 3.5% | 96% | 10° |
| 06:00 | ✕ | 98% | 1978m | 2.3% | 96% | 5.2° |
| 07:00 | ✕ | 97% | 2798m | 1.2% | 96% | -0.44° |
| 08:00 | ✕ | 99% | 3905m | 0% | 96% | -6.3° |
| 09:00 | ✕ | 95% | 3853m | 0% | 96% | -12° |
| 10:00 | ✕ | 89% | 6542m | 0% | 96% | -18° |
| 11:00 | ✕ | 78% | 12738m | 0% | 96% | -22° |
| 12:00 | ✕ | 69% | 24134m | 0% | 96% | -26° |
| 13:00 | ✕ | 44% | 24134m | 0% | 96% | -28° |
| 14:00 | ✕ | 19% | 24135m | 0% | 96% | -29° |
| 15:00 | ✕ | 50% | 24134m | 0% | 96% | -28° |
| 16:00 | ✕ | 100% | 24134m | 0% | 96% | -26° |
| 17:00 | ✕ | 100% | 14508m | 0% | 96% | -22° |
| 18:00 | ✕ | 100% | 8774m | 0% | 96% | -17° |
| 19:00 | ✕ | 100% | 8257m | 0% | 96% | -12° |
| 20:00 | ✓ | 100% | 7530m | 0% | 96% | -6.8° |
| 21:00 | ✓ | 100% | 7334m | 0% | 96% | -1.5° |
| 22:00 | ✓ | 100% | 7642m | 0% | 96% | 3.5° |
| 23:00 | ✓ | 100% | 16679m | 0% | 96% | 7.7° |
| Fri, Mar 6 | ||||||
| 24:00 | ✓ | 100% | 24134m | 0% | 96% | 11° |
| 01:00 | ✓ | 100% | 24135m | 0% | 96% | 13° |
| 02:00 | ✓ | 100% | 24134m | 0% | 90% | 14° |
| 03:00 | ✓ | 100% | 24135m | 10% | 90% | 13° |
| 04:00 | ✓ | 100% | 23505m | 20% | 90% | 11° |
| 05:00 | ✕ | 100% | 24134m | 30% | 90% | 7.6° |
| 06:00 | ✕ | 100% | 13694m | 46% | 90% | 3.2° |
| 07:00 | ✕ | 100% | 11792m | 61% | 90% | -2° |
| 08:00 | ✕ | 100% | 12033m | 76% | 90% | -7.7° |
| 09:00 | ✕ | 93% | 13279m | 83% | 90% | -14° |
| 10:00 | ✕ | 100% | 18185m | 91% | 90% | -19° |
| 11:00 | ✕ | 100% | 3749m | 98% | 90% | -25° |
| 12:00 | ✕ | 100% | 1018m | 99% | 90% | -29° |
| 13:00 | ✕ | 100% | 295m | 99% | 90% | -32° |
| 14:00 | ✕ | 100% | 191m | 100% | 90% | -34° |
| 15:00 | ✕ | 100% | 146m | 82% | 90% | -35° |
| 16:00 | ✕ | 100% | 14106m | 65% | 90% | -33° |
| 17:00 | ✕ | 100% | 336m | 47% | 90% | -30° |
| 18:00 | ✕ | 100% | 4407m | 46% | 90% | -26° |
| 19:00 | ✕ | 100% | 10934m | 44% | 90% | -21° |
| 20:00 | ✓ | 100% | 126m | 42% | 90% | -16° |
| 21:00 | ✓ | 100% | 7973m | 28% | 90% | -11° |
| 22:00 | ✓ | 93% | 21406m | 14% | 90% | -5.4° |
| 23:00 | ✓ | 5.5% | 24134m | 0% | 90% | -0.67° |
| Sat, Mar 7 | ||||||
| 24:00 | ✓ | 4.8% | 24134m | 0% | 90% | 3.3° |
| 01:00 | ✓ | 5% | 24135m | 0% | 90% | 6.2° |
| 02:00 | ✓ | 5% | 24135m | 0% | 84% | 7.9° |
| 03:00 | ✓ | 5% | 24135m | 15% | 84% | 8.2° |
| 04:00 | ✓ | 15% | 21550m | 30% | 84% | 7.1° |
| 05:00 | ✕ | 5% | 24134m | 45% | 84% | 4.7° |
| 06:00 | ✕ | 44% | 24135m | 39% | 84% | 1.1° |
| 07:00 | ✕ | 76% | 24134m | 32% | 84% | -3.4° |
| 08:00 | ✕ | 65% | 24135m | 26% | 84% | -8.6° |
| 09:00 | ✕ | 77% | 24135m | 23% | 84% | -14° |
| 10:00 | ✕ | 88% | 24135m | 20% | 84% | -20° |
| 11:00 | ✕ | 100% | 24135m | 17% | 84% | -26° |
| 12:00 | ✕ | 100% | 24135m | 16% | 84% | -31° |
| 13:00 | ✕ | 100% | 24135m | 16% | 84% | -35° |
| 14:00 | ✕ | 100% | 24135m | 15% | 84% | -38° |
| 15:00 | ✕ | 100% | 21231m | 17% | 84% | -40° |
| 16:00 | ✕ | 100% | 18328m | 19% | 84% | -40° |
| 17:00 | ✕ | 100% | 15424m | 21% | 84% | -38° |
| 18:00 | ✕ | 100% | 12383m | 30% | 84% | -34° |
| 19:00 | ✕ | 100% | 9343m | 39% | 84% | -30° |
| 20:00 | ✓ | 100% | 6302m | 48% | 84% | -25° |
| 21:00 | ✓ | 100% | 6511m | 39% | 84% | -19° |
| 22:00 | ✓ | 100% | 6720m | 30% | 84% | -14° |
| 23:00 | ✓ | 100% | 6929m | 21% | 84% | -8.8° |
| Sun, Mar 8 | ||||||
| 24:00 | ✓ | 100% | 12665m | 26% | 84% | -4.3° |
| 01:00 | ✓ | 100% | 18400m | 32% | 84% | -0.71° |
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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