Morro Bay, CA's night sky, measured from orbit

Satellite radiance puts Morro Bay in the dark sky band. Among the darkest skies of any US city in this dataset. The Milky Way should be visible overhead on clear, moonless nights. Morro Bay's sky is brighter than 0.1% of the 3,206 cities in this dataset.

Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things.

Morro Bay is already about as dark as this dataset gets

Nothing in this dataset's 3,206 US cities measures a darker sky than Morro Bay. That doesn't mean nowhere is darker, unincorporated land and wilderness aren't part of this dataset at all, only incorporated cities of 10,000 people or more.

How Morro Bay compares nationally

Morro Bay, CA counts roughly 10,591 residents, among the 3,206 US cities this site tracks. Morro Bay places 5 of 3,206 cities in this dataset's darkest-to-brightest order.