Rule
Dark Skies
Utsjoki - Dark Skies - Finnish Lapland
Utsjoki, 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)
Utsjoki
Tomorrow · 21:50–02:49 · 5h window
Medium confidence
42%
🌛Moon Altitude-42.9--26.8°
☁️Total Cloud Coverage5-10.4%
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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° |
|---|---|---|---|---|---|---|
| Thu, Mar 12 | ||||||
| 06:00 | ✕ | 100% | 24134m | 53% | 39% | -8.7° |
| 07:00 | ✕ | 100% | 24135m | 67% | 39% | -8.3° |
| 08:00 | ✕ | 100% | 2756m | 82% | 39% | -8.9° |
| 09:00 | ✕ | 100% | 127m | 82% | 39% | -11° |
| 10:00 | ✕ | 100% | 543m | 69% | 39% | -13° |
| 11:00 | ✕ | 100% | 670m | 56% | 39% | -17° |
| 12:00 | ✕ | 100% | 166m | 68% | 39% | -21° |
| 13:00 | ✕ | 99% | 554m | 80% | 39% | -26° |
| 14:00 | ✕ | 100% | 3967m | 93% | 39% | -31° |
| 15:00 | ✕ | 100% | 177m | 79% | 39% | -36° |
| 16:00 | ✕ | 100% | 469m | 59% | 39% | -40° |
| 17:00 | ✕ | 100% | 92m | 39% | 39% | -44° |
| 18:00 | ✕ | 100% | 48m | 45% | 39% | -47° |
| 19:00 | ✕ | 100% | 31m | 50% | 39% | -48° |
| 20:00 | ✕ | 100% | 55m | 56% | 39% | -48° |
| 21:00 | ✓ | 100% | 25m | 26% | 39% | -46° |
| 22:00 | ✓ | 100% | 158m | 13% | 39% | -43° |
| 23:00 | ✓ | 66% | 13960m | 0% | 39% | -38° |
| Fri, Mar 13 | ||||||
| 24:00 | ✓ | 85% | 24134m | 0% | 39% | -34° |
| 01:00 | ✓ | 82% | 23815m | 0% | 39% | -29° |
| 02:00 | ✕ | 98% | 24135m | 0% | 30% | -24° |
| 03:00 | ✕ | 100% | 24135m | 27% | 30% | -19° |
| 04:00 | ✕ | 88% | 24135m | 53% | 30% | -15° |
| 05:00 | ✕ | 96% | 24134m | 80% | 30% | -11° |
| 06:00 | ✕ | 100% | 24135m | 84% | 30% | -8.9° |
| 07:00 | ✕ | 100% | 24135m | 88% | 30% | -7.5° |
| 08:00 | ✕ | 100% | 24134m | 93% | 30% | -7.1° |
| 09:00 | ✕ | 100% | 21761m | 80% | 30% | -7.8° |
| 10:00 | ✕ | 100% | 176m | 68% | 30% | -9.6° |
| 11:00 | ✕ | 100% | 117m | 56% | 30% | -12° |
| 12:00 | ✕ | 100% | 59m | 65% | 30% | -16° |
| 13:00 | ✕ | 100% | 41m | 73% | 30% | -20° |
| 14:00 | ✕ | 100% | 45m | 82% | 30% | -25° |
| 15:00 | ✕ | 100% | 92m | 78% | 30% | -30° |
| 16:00 | ✕ | 100% | 48m | 75% | 30% | -35° |
| 17:00 | ✕ | 100% | 33m | 72% | 30% | -39° |
| 18:00 | ✕ | 100% | 41m | 81% | 30% | -43° |
| 19:00 | ✕ | 100% | 134m | 90% | 30% | -45° |
| 20:00 | ✕ | 100% | 92m | 100% | 30% | -46° |
| 21:00 | ✓ | 100% | 113m | 96% | 30% | -46° |
| 22:00 | ✓ | 100% | 97m | 93% | 30% | -43° |
| 23:00 | ✓ | 100% | 35m | 90% | 30% | -40° |
| Sat, Mar 14 | ||||||
| 24:00 | ✓ | 100% | 29m | 91% | 30% | -36° |
| 01:00 | ✓ | 100% | 35m | 92% | 30% | -31° |
| 02:00 | ✓ | 100% | 25m | 92% | 22% | -26° |
| 03:00 | ✕ | 100% | 23m | 75% | 22% | -21° |
| 04:00 | ✕ | 100% | 26m | 57% | 22% | -16° |
| 05:00 | ✕ | 100% | 31m | 39% | 22% | -12° |
| 06:00 | ✕ | 100% | 38m | 39% | 22% | -8.6° |
| 07:00 | ✕ | 100% | 116m | 38% | 22% | -6.2° |
| 08:00 | ✕ | 100% | 277m | 37% | 22% | -4.8° |
| 09:00 | ✕ | 100% | 23768m | 25% | 22% | -4.5° |
| 10:00 | ✕ | 100% | 23474m | 12% | 22% | -5.4° |
| 11:00 | ✕ | 100% | 2743m | 0% | 22% | -7.4° |
| 12:00 | ✕ | 83% | 24085m | 0% | 22% | -10° |
| 13:00 | ✕ | 5.1% | 24135m | 0% | 22% | -14° |
| 14:00 | ✕ | 6.6% | 24134m | 0% | 22% | -18° |
| 15:00 | ✕ | 2.9% | 24135m | 0% | 22% | -23° |
| 16:00 | ✕ | 3.2% | 24135m | 0% | 22% | -28° |
| 17:00 | ✕ | 5% | 24135m | 0% | 22% | -33° |
| 18:00 | ✕ | 5% | 24134m | 0% | 22% | -37° |
| 19:00 | ✕ | 5% | 24135m | 0% | 22% | -40° |
| 20:00 | ✕ | 5.7% | 24134m | 0% | 22% | -42° |
| 21:00 | ✓ | 10% | 24134m | 0% | 22% | -43° |
| 22:00 | ✓ | 6.1% | 24135m | 0% | 22% | -42° |
| 23:00 | ✓ | 5% | 24135m | 0% | 22% | -40° |
| Sun, Mar 15 | ||||||
| 24:00 | ✓ | 5% | 24134m | 0% | 22% | -36° |
| 01:00 | ✓ | 5% | 24135m | 0% | 22% | -32° |
| 02:00 | ✓ | 7.8% | 24134m | 0% | 14% | -27° |
| 03:00 | ✕ | 60% | 9177m | 0% | 14% | -22° |
| 04:00 | ✕ | 99% | 12798m | 0% | 14% | -17° |
| 05:00 | ✕ | 46% | 24135m | 0% | 14% | -12° |
| 06:00 | ✕ | 6.3% | 24134m | 0% | 14% | -7.8° |
| 07:00 | ✕ | 5.1% | 24135m | 0% | 14% | -4.5° |
| 08:00 | ✕ | 5% | 24135m | 0% | 14% | -2.1° |
| 09:00 | ✕ | 37% | 24135m | 0% | 14% | -0.83° |
| 10:00 | ✕ | 68% | 24135m | 0% | 14% | -0.71° |
| 11:00 | ✕ | 100% | 24135m | 0% | 14% | -1.8° |
| 12:00 | ✕ | 100% | 24135m | 0% | 14% | -3.9° |
| 13:00 | ✕ | 100% | 24135m | 0% | 14% | -7° |
| 14:00 | ✕ | 100% | 24135m | 0% | 14% | -11° |
| 15:00 | ✕ | 100% | 24135m | 7.4% | 14% | -15° |
| 16:00 | ✕ | 100% | 24135m | 15% | 14% | -20° |
| 17:00 | ✕ | 100% | 24135m | 22% | 14% | -25° |
| 18:00 | ✕ | 100% | 24030m | 25% | 14% | -29° |
| 19:00 | ✕ | 100% | 23926m | 27% | 14% | -33° |
| 20:00 | ✕ | 100% | 23822m | 30% | 14% | -36° |
| 21:00 | ✓ | 100% | 23926m | 34% | 14% | -38° |
| 22:00 | ✓ | 100% | 24030m | 38% | 14% | -38° |
| 23:00 | ✓ | 100% | 24135m | 42% | 14% | -37° |
| Mon, Mar 16 | ||||||
| 24:00 | ✓ | 79% | 24135m | 42% | 14% | -35° |
| 01:00 | ✓ | 59% | 24135m | 41% | 14% | -31° |
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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