Neighbourhood noise map
Águas Mortas, Gravataí
Sossego Index 53 out of 100: Active. Ranked 143 of the 157 neighbourhoods rated in Gravataí. That is below the city average of 76.
Moderate, steady noise, typical of mixed neighborhoods with shops and busy streets.
Inside the neighbourhood the index runs from 21 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 Rodovia Mário Quintana (expressway, 234 m), Rua Lateral da ERS-118 (arterial road, 219 m) and Avenida Marechal Rondon (collector road, 95 m). Traffic is the main source of noise.
The nearest airport is Base Aérea de Canoas (international), 8.7 km away. Far enough to barely count.
Nearby local sources: industrial zone (280 m), LOG Gravataí (304 m).
Day and night
By day the estimate is 66 dB(A), index 53. At night, with less traffic, it drops to 61 dB(A), index 66. It is above the NBR 10151 reference for residential areas (55 dB(A) by day and 50 at night) in both periods.
What makes up the index
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Test an address in Águas MortasNeighbouring areas
The closest neighbourhoods and their scores.
- Monte Claro101 m away53
- Recanto das Taquareiras818 m away77
- Tom Jobim1.1 km away90
- Refúgio da Coxilha1.2 km away84
- Rondon1.4 km away80
- Parque Ipiranga1.6 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.