Arcadia, CA Night Sky Brightness
How dark is the sky in Arcadia, CA?
Arcadia's sky measures suburban here. Light dome dominates much of the sky. Only the brightest stars and planets stand out clearly. That's brighter than 71.5% of the 3,206 US cities in this dataset.
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, covered fully in the Bortle scale guide.
How far Arcadia is from a meaningfully darker sky
The closest place in this dataset with a meaningfully darker sky is Sierra Madre, CA, roughly 3 miles away in a straight line, rated rural. Road distance will be more.
Sierra Madre, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
Arcadia against the rest of the dataset
Arcadia, CA counts roughly 54,472 residents, among the 3,206 US cities this site tracks. Ranked against the other 3,206 cities here by the methodology guide's own sampling, Arcadia comes in at 2,280, darkest to brightest.