Our model puts Baixa at around 69 dB(A) as a day-evening-night average, which reads as loud. Levels range from about 62 to 78 dB(A) between its quietest and loudest streets.

Is Baixa quiet at night?

Modelled night levels average around 59 dB(A), lively, about as loud as a nearby conversation. The quietest hour is typically around 03:00.

What is the main noise source in Baixa?

Road traffic dominates, carrying about 85% of the modelled sound energy, followed by nightlife and crowds.

When is Baixa loudest?

The loudest hour is typically around 18:00, the calmest around 03:00.

Noise in Baixa

Lisbon · modelled noise guide

Baixa averages around 69 dB(A) over the day-evening-night cycle in our model, which reads as loud. Nights average around 59 dB(A). The downtown grid between Rossio and the river. Buses, trams and heavy footfall run on every axis, and the building canyons keep the sound bouncing.

45 quiet556575+ very loud

Day-evening-night (Lden)

69 dB(A)

Night average (Ln)

59 dB(A)

Main source

road traffic
85% of sound energy

Quiet pockets

0% below 55 dB(A)

Across 13 sampled spots the average ranges from 62 to 78 dB(A): a moderate spread between its calm and busy streets. The loudest hour is typically around 18:00 and the calmest around 03:00.

Open the live noise map of Baixa Or check a specific address for a free room-by-room noise report, hour by hour.

Questions people ask

How noisy is Baixa?: Our model puts Baixa at around 69 dB(A) as a day-evening-night average, which reads as loud. Levels range from about 62 to 78 dB(A) between its quietest and loudest streets.
Is Baixa quiet at night?: Modelled night levels average around 59 dB(A), lively, about as loud as a nearby conversation. The quietest hour is typically around 03:00.
What is the main noise source in Baixa?: Road traffic dominates, carrying about 85% of the modelled sound energy, followed by nightlife and crowds.
When is Baixa loudest?: The loudest hour is typically around 18:00, the calmest around 03:00.

Nearby areas

What helps against the noise

Cheap fixes first (earplugs, masking sound), structural ones second (acoustic glazing takes 5 to 10 dB off the room behind it). Our short, independent picks:

Links may earn Urbient a commission. Recommendations never affect the noise estimates.

How these numbers are made. Urbient models noise from OpenStreetMap geometry: roads, rail and pedestrian streets as line sources with per-street traffic adjustments, venues as point sources, aircraft corridors calibrated against the official 2021 strategic noise map, and shielding from 466,000 building footprints. The figures here average 13 sample points spread over the area; any single address can sit well above or below them. This is a modelled estimate and never a certified measurement under DL 9/2007. Official maps: CML and APA.