Neighbourhood noise map
São Francisco, Niterói
Sossego Index 74 out of 100: Calm. Ranked 52 of the 65 neighbourhoods rated in Niterói. That is below the city average of 84.
Low noise most of the day. You can sleep with the window open.
Inside the neighbourhood the index runs from 19 to 84. Some corners are much louder than others, usually next to the avenues.
The roads that weigh most on the noise of the neighbourhood are Avenida Presidente Roosevelt (arterial road, 280 m), Rua Maria Caldas (residential street, 5 m) and Avenida Rui Barbosa (collector road, 279 m). Traffic is the main source of noise.
The nearest airport is Aeroporto Santos Dumont (regional), 7.5 km away. Far enough to barely count.
Day and night
By day the estimate is 58 dB(A), index 74. At night, with less traffic, it drops to 50 dB(A), index 94. It is above the daytime NBR 10151 reference for residential areas (55 dB(A)) but within the night one (50 dB(A)).
What makes up the index
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The closest neighbourhoods and their scores.
- Vital Brazil1.2 km away86
- Cachoeira1.3 km away73
- Viradouro1.4 km away94
- Santa Rosa1.8 km away92
- Maceió1.9 km away92
- Charitas2 km away87
How to read this index
The Sossego Index runs from 0 to 100 and is an estimate built from open data, not an on-site measurement. 100 means 48 dB(A) or less, the level of a calm residential area. 0 means 86 dB(A) or more, the level of a heavy traffic avenue. Each neighbourhood's value is the median of nine points around its centre.
Read the full methodologyOpenStreetMap data, computed on October 21, 2026.