Green River State Park
Sky Score 44/100≈ Bortle 4
Green River State Park is a protected area in Utah with a measured darkness of 62/100 (≈ Bortle 4) — a good rural sky: the Milky Way is clearly visible, with some glow on the horizon toward nearby towns. The best month to come is typically September, when about 78% of the night sky is clear.
Tonight's outlook: 47/100. The moon is 7% lit and above the horizon 8% of the night; typical August clear-sky odds here are 69%. Updated daily.
Best time to stargaze at Green River State Park
| Month | Clear night skies | Sky Score (new moon) |
|---|---|---|
| January | 55% | 39/100 |
| February | 58% | 41/100 |
| March | 56% | 40/100 |
| April | 63% | 43/100 |
| May | 61% | 43/100 |
| June | 72% | 48/100 |
| July | 65% | 45/100 |
| August | 69% | 47/100 |
| September ★ | 78% | 51/100 |
| October | 72% | 48/100 |
| November | 67% | 45/100 |
| December | 58% | 41/100 |
Scores assume a moonless night — check the moon before you drive (methodology).
Where to stay near Green River State Park
No lodging within 80 km — this is true wilderness. Plan to camp, or base yourself in the nearest gateway town and drive out for the night.
Nearby spots in Utah
- Utahraptor State Park — 50.8 km · Sky Score 61/100
- Horseshoe Canyon (North) Wilderness Study Area — 56.1 km · Sky Score 67/100
- Arches National Park — 56.2 km · Sky Score 62/100
- Horseshoe Canyon Unit — 59.5 km · Sky Score 67/100
- Temple Mountain Viewpoint — 59.8 km · Sky Score 67/100