San Leandro, CA's night sky, measured from orbit

Satellite radiance puts San Leandro in the urban band. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. Only 96.5% of the 3,206 cities measured here read darker than San Leandro.

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

How far San Leandro is from a meaningfully darker sky

Alameda, CA, about 6 miles away as the crow flies, measures in the rural band, one step darker than San Leandro. Actual driving distance will run longer than that straight-line figure.

Alameda, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.

How San Leandro compares nationally

San Leandro, CA has a population of about 86,571, one of 3,206 US cities of 10,000 or more residents in this dataset. San Leandro places 3,077 of 3,206 cities in this dataset's darkest-to-brightest order.