Neighbourhood noise map
San Martin, Gravataí
Sossego Index 78 out of 100: Calm. Ranked 67 of the 157 neighbourhoods rated in Gravataí. That matches the city average of 76.
Low noise most of the day. You can sleep with the window open.
Inside the neighbourhood the index runs from 40 to 85. Some corners are much louder than others, usually next to the avenues.
The roads that weigh most on the noise of the neighbourhood are Rua Emílio Garrastazu Médici (main local road, 23 m), Freeway (motorway, 525 m) and Rua 9 de Julho (main local road, 33 m). Traffic is the main source of noise.
The nearest airport is Base Aérea de Canoas (international), 8.1 km away. Far enough to barely count.
Nearby local sources: Jackwal (294 m).
Day and night
By day the estimate is 56 dB(A), index 78. 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
Moving here?
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Test an address in San MartinNeighbouring areas
The closest neighbourhoods and their scores.
- San Diego327 m away75
- São Luiz484 m away76
- Nossa Chácara539 m away77
- Cruzeiro II903 m away71
- Parque Olinda956 m away68
- Cohab A1 km away68
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.