What is the air quality in Barreiro today?

The current Air Quality Index (AQI) in Barreiro is 24 (Good). PM2.5 concentration is 5.71 µg/m³.

What is the temperature in Barreiro right now?

The current temperature in Barreiro is 18.4°C (feels like 18.4°C). Humidity is 71.4% and wind speed is 36.4 km/h.

Is it safe to go outside in Barreiro?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Barreiro, Portugal

Cloudy

18.4°C · 71.4% humidity

18.4°

Feels 18.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

7 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 12 stn

View full history →

Barreiro's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.

71.4%

Humidity

36.4 km/h

Wind S

1014.1 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.71 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Barreiro?

Temperature & Precipitation

PM2.5 Trend

46h · 12 stations

PM2.55.71 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (7 stations within 25 km)

5.71

Median

6.09

Average

3.6

Low

7.9

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +0.3

What is the 7-day forecast for Barreiro?

10-21

21.2° 14.4°

10-22

22.7° 16.5°

3.13 mm

10-23

19.1° 15.6°

0.81 mm

10-24

18.6° 16.4°

10-25

22.4° 16.3°

10-26

18.8° 14.9°

10-27

21.8° 14.9°

13.31 mm

Both models agree Avg diff: 1.8°C

Where are air quality stations near Barreiro?

Laranjeiro, Almada, Portugal

7.4 km PM2.5: 3.6 µg/m³

Laranjeiro, Almada, Portugal

7.4 km PM2.5: 4.1 µg/m³

Entrecampos, Lisboa, Portugal

11.6 km PM2.5: 5.5 µg/m³

Entrecampos, Lisboa, Portugal

11.6 km PM2.5: 3.1 µg/m³

Entrecampos, Lisboa, Portugal

11.6 km PM2.5: 7.9 µg/m³

Olivais, Lisboa, Portugal

12.2 km PM2.5: 5.3 µg/m³

Olivais, Lisboa, Portugal

12.2 km PM2.5: 1.2 µg/m³

Mem Martins, Sintra, Portugal

27.4 km PM2.5: 9.6 µg/m³

Mem Martins, Sintra, Portugal

27.4 km PM2.5: 2.4 µg/m³

Mem Martins, Sintra, Portugal

27.4 km PM2.5: 4.1 µg/m³

What cities are near Barreiro?

25 Lavradio 23 Arrentela 22 Amora 20 Laranjeiro 25 Moita 21 Corroios 20 Piedade 21 Almada 27 Marvila 26 São Jorge de Arroios

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T15:59 UTC.