How noisy is Bairro Alto?

Our model puts Bairro Alto at around 64 dB(A) as a day-evening-night average, which reads as noisy. Levels range from about 53 to 72 dB(A) between its quietest and loudest streets.

Is Bairro Alto quiet at night?

Modelled night levels average around 56 dB(A), lively, about as loud as a nearby conversation. The quietest hour is typically around 04:00.

What is the main noise source in Bairro Alto?

Road traffic dominates, carrying about 50% of the modelled sound energy, followed by nightlife and crowds.

When is Bairro Alto loudest?

The loudest hour is typically around 18:00, the calmest around 04:00.

Noise in Bairro Alto

Lisbon · modelled noise guide

Bairro Alto averages around 64 dB(A) over the day-evening-night cycle in our model, which reads as noisy. Nights average around 56 dB(A). Lisbon's nightlife quarter. Mornings are sleepy and residential; weekend nights on the bar streets are another world. A day-night average flattens that contrast, so check the hourly curve on the live map.

45 quiet556575+ very loud

Day-evening-night (Lden)

64 dB(A)

Night average (Ln)

56 dB(A)

Main source

road traffic
50% of sound energy

Quiet pockets

8% below 55 dB(A)

Across 13 sampled spots the average ranges from 53 to 72 dB(A): a wide spread, so the right street matters more than the average. The loudest hour is typically around 18:00 and the calmest around 04:00.

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

Questions people ask

How noisy is Bairro Alto?: Our model puts Bairro Alto at around 64 dB(A) as a day-evening-night average, which reads as noisy. Levels range from about 53 to 72 dB(A) between its quietest and loudest streets.
Is Bairro Alto quiet at night?: Modelled night levels average around 56 dB(A), lively, about as loud as a nearby conversation. The quietest hour is typically around 04:00.
What is the main noise source in Bairro Alto?: Road traffic dominates, carrying about 50% of the modelled sound energy, followed by nightlife and crowds.
When is Bairro Alto loudest?: The loudest hour is typically around 18:00, the calmest around 04:00.

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.