Whittier, CA Noise Ordinances: Quiet Hours (2026)
Quiet hours in Whittier, CA, also called the noise ordinance, nighttime noise rules, or residential quiet time, define the hours during which excessive noise is prohibited.
Key Facts
- Nighttime hours (weekdays)
- 9:00 p.m. to 7:00 a.m.
- Nighttime hours (weekends/holidays)
- 9:00 p.m. to 9:00 a.m.
- Catch-all rule
- WMC § 8.32.040(M), late night disturbances
- Audibility trigger
- Plainly audible in residence or 50 ft
- Definitions section
- WMC § 8.32.020(G),(M)
Summary
Whittier's quiet hours run from 9:00 p.m. to 7:00 a.m. on weekdays and from 9:00 p.m. to 9:00 a.m. on Saturdays, Sundays and legal holidays, the "nighttime" window defined in section 8.32.020. Inside that window, section 8.32.040(M) makes any late-night disturbance plainly audible in a neighboring residence, or fifty feet from the property line, prima facie evidence of a noise violation, without requiring proof of intent or a decibel reading.
"Daytime" denotes the local time of day between the hours of seven a.m. and nine p.m. on weekdays and between the hours of nine a.m. and nine p.m. on Saturdays, Sundays and local legal holidays. ... "Nighttime" means those hours excluded from the definition of "daytime." ... M.Late night disturbances of any kind that are plainly audible by inhabitants or occupants of any adjacent or neighboring residential properties or units, or are plainly audible at a distance of fifty feet from a real property boundary, that occur during nighttime hours, shall be prima facie evidence of violation of this subsection.
Full Breakdown
m. on Saturdays, Sundays and legal holidays, and "nighttime" is defined simply as every hour outside that daytime window. 040: domestic power tools and small power equipment used outdoors in residential areas cannot cause a noise disturbance across a property line during nighttime hours (subsection D); engine repair and testing that creates a disturbance is barred outright at night (subsection E); stereos, radios and audio systems that are plainly audible in a neighboring residential unit during nighttime are presumed violations (subsection H); and, as a catch-all, subsection M declares that any late-night disturbance plainly audible in a neighboring residence, or fifty feet from the real property boundary, during nighttime hours is itself prima facie evidence of a violation, regardless of the specific source.
080, such as permitted construction and city-licensed outdoor events, are limited to daytime hours or a specific permit. 060, where an officer must personally confirm, by normal hearing and where possible a direct line of sight, that the noise is plainly audible from the source before citing a violation.
Violations & Fines
A nighttime noise violation under section 8.32.040(M) or its more specific companion subsections is enforceable as soon as an officer confirms the disturbance is plainly audible in a neighboring unit or fifty feet from the property line; the officer does not need to identify the exact source. Citations are processed as infractions with escalating fines for repeat violations of the same section within a year, or, at the city attorney's discretion, filed as a misdemeanor punishable by up to $500 and six months in jail.
Frequently Asked Questions
What time do Whittier's quiet hours start?
Do I need to prove exactly what caused the late-night noise?
Are there exceptions to Whittier's nighttime noise rule?
Sources & Official References
Other rules in Whittier
How Whittier compares: Cities with the Strictest Noise Ordinances·California rules heatmap·Compare Whittier to another location·View the California noise ordinances overview
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Quiet Hours in Nearby Cities
How other cities in Los Angeles County handle quiet hours.