Organ Pipe Cactus National Monument
1 place to stay nearby, rated for darkness ↓
Organ Pipe Cactus National Monument is a protected area in Arizona with a measured darkness of 85/100 (≈ Bortle 2), a genuinely dark sky where the Milky Way is a bright, structured band. The best month to come is typically May, when about 87% of the night sky is clear.
Tonight's outlook: 31/100. The moon is 98% lit and above the horizon 96% of the night; typical September clear-sky odds here are 80%. Updated daily.
Best time to stargaze at Organ Pipe Cactus National Monument
| Month | Clear night skies | Sky Score (new moon) |
|---|---|---|
| January | 66% | 62/100 |
| February | 69% | 64/100 |
| March | 70% | 64/100 |
| April | 82% | 72/100 |
| May ★ | 87% | 76/100 |
| June | 84% | 74/100 |
| July | 55% | 54/100 |
| August | 66% | 62/100 |
| September | 80% | 71/100 |
| October | 84% | 74/100 |
| November | 72% | 66/100 |
| December | 67% | 63/100 |
Scores assume a moonless night, check the moon before you drive (methodology).
Where to stay near Organ Pipe Cactus National Monument: sleep under a dark sky
We measured the night sky over each stay below, not just over the spot: the darkness score is computed at the hotel's own location, so you know what you'll see from the door. Sorted darkest sky first, with the distance to Organ Pipe Cactus National Monument for each.
59/100sky darkness at this stay
Booking links are affiliate links, see the disclosure.
Live prices around Pima County
Pima County is the closest base to Organ Pipe Cactus National Monument with rooms to book. The map shows everything available there right now, including the hotels, apartments and cabins we do not rate. Use the stays above when darkness decides, use the map when price or availability does.
Prices and availability come from the booking partners shown on the map, and we earn a commission on bookings made through it. Sky darkness is measured only for the stays listed above.
Nearby spots in Arizona
- Cabeza Prieta Wilderness 63.2 km · Sky Score 75/100
- Sonoran Desert National Monument 113.3 km · Sky Score 62/100
- Baboquivari Peak Wilderness 121.8 km · Sky Score 68/100
- Ironwood Forest National Monument 133.5 km · Sky Score 56/100
- Hohokam Pima National Monument 157.5 km · Sky Score 37/100
Sky data: NASA Black Marble VJ146A4 2025 annual composite · clear-sky climatology ERA5 2015–2024 (methodology).