Rule
Dark Skies
Thingvellir - Dark Skies - Iceland
Laugarvatn, South, Iceland
Moonless nights with crystal-clear skies for deep-sky photography
Upcoming Opportunities
When all conditions match, PhotoWeather marks an opportunity window.
Times shown in Atlantic/Reykjavik
Next opportunity
Pristine Dark Skies (pristine)
Thingvellir
Tomorrow · 04:00–04:49 · 1h window
Medium confidence
66%
🌛Moon Altitude-23.4°
☁️Total Cloud Coverage5%
Pristine Dark Skies (pristine)
Thingvellir
Tue, Mar 17 · 22:20–04:40
🌛Moon Altitude:-31.4--21.5°
Medium
Create your own Dark Skies alerts
Get notified when these conditions match at your own locations.
72-hour requirements breakdown
What passed or failed, hour by hourOR logic: one branch per group is enough
Meets requirement
Misses requirement
Time Atlantic/Reykjavik | 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, Mar 15 | ||||||
| 04:00 | ✕ | 100% | 24135m | 34% | 14% | -22° |
| 05:00 | ✕ | 100% | 23834m | 37% | 14% | -16° |
| 06:00 | ✕ | 100% | 24134m | 39% | 14% | -10° |
| 07:00 | ✕ | 100% | 24134m | 26% | 14% | -4.7° |
| 08:00 | ✕ | 100% | 24135m | 13% | 14% | -0.23° |
| 09:00 | ✕ | 100% | 24135m | 0% | 14% | 3.1° |
| 10:00 | ✕ | 99% | 24135m | 0% | 14% | 5.1° |
| 11:00 | ✕ | 96% | 24134m | 0% | 14% | 5.7° |
| 12:00 | ✕ | 39% | 24134m | 0% | 14% | 4.7° |
| 13:00 | ✕ | 100% | 20695m | 0% | 14% | 2.3° |
| 14:00 | ✕ | 100% | 23586m | 0% | 14% | -1.3° |
| 15:00 | ✕ | 93% | 6895m | 0% | 14% | -6° |
| 16:00 | ✕ | 98% | 24134m | 0% | 14% | -11° |
| 17:00 | ✕ | 100% | 24134m | 0% | 14% | -17° |
| 18:00 | ✕ | 100% | 24134m | 0% | 14% | -23° |
| 19:00 | ✕ | 100% | 24134m | 0% | 14% | -29° |
| 20:00 | ✕ | 91% | 24135m | 0% | 14% | -35° |
| 21:00 | ✕ | 72% | 24134m | 0% | 14% | -39° |
| 22:00 | ✓ | 84% | 24135m | 0% | 14% | -42° |
| 23:00 | ✓ | 95% | 24135m | 0% | 14% | -43° |
| Mon, Mar 16 | ||||||
| 24:00 | ✓ | 72% | 24135m | 0% | 7.9% | -43° |
| 01:00 | ✓ | 74% | 24135m | 0% | 7.9% | -40° |
| 02:00 | ✓ | 89% | 24134m | 0% | 7.9% | -35° |
| 03:00 | ✓ | 83% | 24135m | 0% | 7.9% | -30° |
| 04:00 | ✓ | 5% | 24135m | 0% | 7.9% | -23° |
| 05:00 | ✕ | 31% | 24134m | 0% | 7.9% | -17° |
| 06:00 | ✕ | 20% | 24135m | 0% | 7.9% | -10° |
| 07:00 | ✕ | 5% | 24134m | 0% | 7.9% | -4.4° |
| 08:00 | ✕ | 0.7% | 24134m | 0% | 7.9% | 0.95° |
| 09:00 | ✕ | 1.1% | 24135m | 0% | 7.9% | 5.4° |
| 10:00 | ✕ | 5% | 24135m | 0% | 7.9% | 8.6° |
| 11:00 | ✕ | 4.2% | 24134m | 0% | 7.9% | 10° |
| 12:00 | ✕ | 5% | 24134m | 0% | 7.9% | 11° |
| 13:00 | ✕ | 0.5% | 24134m | 7.4% | 7.9% | 9.5° |
| 14:00 | ✕ | 4.1% | 24135m | 15% | 7.9% | 6.7° |
| 15:00 | ✕ | 90% | 24134m | 22% | 7.9% | 2.8° |
| 16:00 | ✕ | 100% | 24135m | 31% | 7.9% | -2.2° |
| 17:00 | ✕ | 100% | 24135m | 41% | 7.9% | -7.8° |
| 18:00 | ✕ | 100% | 24134m | 50% | 7.9% | -14° |
| 19:00 | ✕ | 100% | 24134m | 41% | 7.9% | -20° |
| 20:00 | ✕ | 100% | 24135m | 31% | 7.9% | -26° |
| 21:00 | ✕ | 100% | 24134m | 22% | 7.9% | -31° |
| 22:00 | ✓ | 100% | 24135m | 31% | 7.9% | -35° |
| 23:00 | ✓ | 100% | 24134m | 40% | 7.9% | -37° |
| Tue, Mar 17 | ||||||
| 24:00 | ✓ | 100% | 24135m | 49% | 2.9% | -38° |
| 01:00 | ✓ | 100% | 24134m | 46% | 2.9% | -36° |
| 02:00 | ✓ | 100% | 24135m | 43% | 2.9% | -33° |
| 03:00 | ✓ | 100% | 24134m | 40% | 2.9% | -29° |
| 04:00 | ✓ | 100% | 24135m | 43% | 2.9% | -23° |
| 05:00 | ✕ | 100% | 24135m | 47% | 2.9% | -17° |
| 06:00 | ✕ | 100% | 24135m | 50% | 2.9% | -10° |
| 07:00 | ✕ | 100% | 24135m | 33% | 2.9% | -3.8° |
| 08:00 | ✕ | 95% | 24135m | 17% | 2.9% | 2.2° |
| 09:00 | ✕ | 92% | 24134m | 0% | 2.9% | 7.6° |
| 10:00 | ✕ | 100% | 24134m | 0% | 2.9% | 12° |
| 11:00 | ✕ | 96% | 24134m | 0% | 2.9% | 15° |
| 12:00 | ✕ | 23% | 24135m | 0% | 2.9% | 17° |
| 13:00 | ✕ | 99% | 24135m | 0% | 2.9% | 17° |
| 14:00 | ✕ | 99% | 24134m | 0% | 2.9% | 15° |
| 15:00 | ✕ | 100% | 23626m | 0% | 2.9% | 12° |
| 16:00 | ✕ | 100% | 2094m | 0% | 2.9% | 7.4° |
| 17:00 | ✕ | 100% | 1496m | 0% | 2.9% | 2.2° |
| 18:00 | ✕ | 100% | 9257m | 0% | 2.9% | -3.6° |
| 19:00 | ✕ | 68% | 14216m | 1.2% | 2.9% | -9.7° |
| 20:00 | ✕ | 37% | 19176m | 2.3% | 2.9% | -16° |
| 21:00 | ✕ | 5% | 24135m | 3.5% | 2.9% | -21° |
| 22:00 | ✓ | 4.6% | 24135m | 2.3% | 2.9% | -26° |
| 23:00 | ✓ | 4.3% | 24135m | 1.2% | 2.9% | -29° |
| Wed, Mar 18 | ||||||
| 24:00 | ✓ | 3.9% | 24135m | 0% | 0.4% | -31° |
| 01:00 | ✓ | 2.6% | 24135m | 0% | 0.4% | -31° |
| 02:00 | ✓ | 1.3% | 24135m | 0% | 0.4% | -30° |
| 03:00 | ✓ | 0% | 24135m | 0% | 0.4% | -26° |
| 04:00 | ✓ | 0.6% | 24135m | 0% | 0.4% | -21° |
| 05:00 | ✕ | 1.2% | 24135m | 0% | 0.4% | -16° |
| 06:00 | ✕ | 1.8% | 24135m | 0% | 0.4% | -9.5° |
| 07:00 | ✕ | 27% | 24135m | 0% | 0.4% | -2.9° |
| 08:00 | ✕ | 53% | 24135m | 0% | 0.4% | 3.5° |
| 09:00 | ✕ | 78% | 24135m | 0% | 0.4% | 9.6° |
| 10:00 | ✕ | 54% | 24135m | 0% | 0.4% | 15° |
| 11:00 | ✕ | 29% | 24135m | 0% | 0.4% | 19° |
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.
Get Notified of Opportunities
Create your own custom alerts for this location and more.
Create Free Account