How dark is the sky in El Monte, CA?
Satellite radiance puts El Monte in the urban band. Sky glow overhead most nights. Typically only planets, the Moon, and a handful of the brightest stars are visible. El Monte's sky is brighter than 95.6% of the 3,206 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.
Where to go for a darker sky near El Monte
The closest place in this dataset with a meaningfully darker sky is Temple City, CA, roughly 3 miles away in a straight line, rated suburban. Road distance will be more.
Temple City, CA is itself still a measured city, not a designated dark-sky park, this only compares against the 3,206 places this dataset covers.
El Monte against the rest of the dataset
El Monte, CA has a population of about 104,639, one of 3,206 US cities of 10,000 or more residents in this dataset. Among all 3,206 cities here, El Monte ranks 3,049 from darkest to brightest, 1 being the darkest measured.