How dark is the sky in San Antonio, TX?

San Antonio's sky measures suburban here. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 78.2% of the 3,206 cities measured here read darker than San Antonio.

Worth remembering: this is satellite radiance, not a ground observation. A true Bortle rating needs a human eye at night, this is the closest large-scale substitute.

Where to go for a darker sky near San Antonio

Helotes, TX, about 12 miles away as the crow flies, measures in the rural band, one step darker than San Antonio. Actual driving distance will run longer than that straight-line figure.

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

San Antonio against the rest of the dataset

San Antonio, TX has a population of about 1,526,656, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, San Antonio ranks 2,493 from darkest to brightest, 1 being the darkest measured.