Outdoor Lighting in San Jose, CA (2026)
5 verified outdoor lighting rules for San Jose, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
San Jose enforces a low-pressure sodium-preferred outdoor lighting ordinance to protect Lick Observatory on Mount Hamilton. All new fixtures must be fully shielded, and color temperature is capped at 2700K in observatory-proximate zones. Non-essential lighting must extinguish by 11:00 PM.
San Jose Lick Observatory Dark-Sky Standards
Heavy RestrictionsLight Trespass
San Jose addresses light trespass through its outdoor lighting standards and nuisance provisions in SJMC Title 20 (Zoning). Outdoor lighting on commercial and residential properties must be directed downward and shielded to prevent light from spilling onto adjacent properties. Complaints about light trespass can be filed with the City's Code Enforcement Division, which evaluates whether lighting constitutes a nuisance under the municipal code.
San Jose Light Trespass Regulations
Some RestrictionsBillboard Lighting
San Jose Municipal Code Title 23 caps billboard luminance, requires automatic dimming after dusk, and prohibits animation or flashing. The Highway Advertising Control Act and Caltrans separately enforce statewide brightness rules on digital billboards visible from California freeways.
San Jose Caps Billboard Brightness and Limits Digital LED Faces
Heavy RestrictionsSecurity Light Shielding
San Jose Municipal Code Title 20 zoning requires outdoor security and floodlights to be fully shielded and aimed downward to prevent glare and trespass onto neighboring properties. Eastern hillside areas near Mt. Hamilton fall under additional dark-sky measures protecting Lick Observatory's astronomical research.
San Jose Outdoor Lights Must Be Shielded Near Lick Observatory
Some RestrictionsHoliday Lighting Rules
Temporary holiday and seasonal lighting displays in San Jose are exempt from the city's standard outdoor-lighting shielding and Kelvin requirements when installed and removed within a reasonable seasonal window. Excessive brightness, traffic hazards, or extended runs can still trigger nuisance enforcement.
Temporary Holiday Lights Exempt from San Jose Lighting Standards
Few RestrictionsLooking for Santa Clara County county-wide rules?
County ordinances apply to unincorporated areas and may supplement San Jose city rules.
Outdoor Lighting in Santa Clara County →