Daly City, CA Night Sky Brightness
Daly City, CA's night sky, measured from orbit
Daly City reads as suburban on this dataset's scale. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. Only 55.7% of the 3,206 cities measured here read darker than Daly City.
Note the source: a satellite reading of upward light, not a visual Bortle scale reading. The two measure related but different things, explained in the Bortle scale guide.
How far Daly City is from a meaningfully darker sky
San Bruno, CA, about 6 miles away as the crow flies, measures in the suburban edge band, one step darker than Daly City. Actual driving distance will run longer than that straight-line figure.
San Bruno, 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 Daly City compares nationally
Daly City, CA counts roughly 101,418 residents, among the 3,206 US cities this site tracks. Daly City's position, 1,775 of 3,206, darkest to brightest, comes from the sampling method the methodology guide sets out.