The noise at night should not exceed many decibels.

First, the noise at night shall not be greater than how many decibels.

1, and the noise at night shall not be greater than 40 decibels. According to the relevant laws and regulations, the environmental noise standard for residential, cultural and educational institutions is 55 decibels during the day and 45 decibels at night. The indoor noise standard of residence is formulated according to the requirements of quiet life and the environmental noise standard of the region, with reference to the window conditions of residence, and generally should not be lower than the environmental noise standard of the region by 20 decibels. Units and individuals that are harmed by environmental noise pollution have the right to demand the injurer to eliminate the harm and compensate the losses according to law.

2. Legal basis: Article 88 of the Law of People's Republic of China (PRC) on the Prevention and Control of Noise Pollution.

The meanings of the following terms in this Law:

(1) Noise emission means that noise sources radiate noise to the surrounding living environment;

(2) Night refers to 10: 00 pm to 6: 00 am. The people's governments at or above the municipal level with districts may separately stipulate the starting and ending time of the night within their respective administrative areas, and the length of the night is eight hours;

(3) noise-sensitive structures refers to buildings that need to be kept quiet, such as residence, scientific research, medical and health care, culture and education, office of government agencies and social welfare.

(4) Traffic trunk lines refer to railways, expressways, first-class highways, second-class highways, urban expressways, urban trunk roads, urban secondary trunk roads, urban rail transit lines and inland high-grade waterways.

Second, how to deal with noise disturbing people?

1, the parties can negotiate with the noise manufacturer;

2. You can also report the case to the public security organ, and the public security organ will give the perpetrator an administrative penalty of warning and fine according to law;

3. Where noise pollution is caused, the competent department of ecological environment of the local people's government at or above the county level may order it to make corrections and impose a fine.