Neighbourhood noise map
Cassaco, São Luís
Sossego Index 91 out of 100: Very calm. Ranked 32 of the 323 neighbourhoods rated in São Luís. That is above the city average of 70.
Very low noise. The quiet of a far residential area or a green space.
Inside the neighbourhood the index runs from 71 to 100. Noise is similar across the whole area.
The road with the biggest weight in the noise is Estrada do Quebra Pote (collector road), 54 m from the centre of the neighbourhood.
The nearest airport is Aeroporto Internacional Marechal Cunha Machado (international), 11.9 km away. Far enough to barely count.
What makes up the index
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The closest neighbourhoods and their scores.
- Santa Helena753 m away92
- Tapari1.7 km away95
- Tindiba2.3 km away100
- Quebra Pote2.6 km away89
- Tinaí4.1 km away100
- Vila Maracujá4.2 km away100
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 19, 2026.