What is the air quality in Belas today?

The current Air Quality Index (AQI) in Belas is 23 (Good). PM2.5 concentration is 5.45 µg/m³.

What is the temperature in Belas right now?

The current temperature in Belas is 17.9°C (feels like 17.9°C). Humidity is 68.6% and wind speed is 33.2 km/h.

Is it safe to go outside in Belas?

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

Air Quality in Belas, Portugal

Partly Cloudy

17.9°C · 68.6% humidity

17.9°

Feels 17.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

10 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

47h · 1 stn

View full history →

Belas'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.

68.6%

Humidity

33.2 km/h

Wind S

1014.2 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.45 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Belas?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.55.45 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (10 stations within 25 km)

5.45

Median

5.34

Average

0.87

Low

7.9

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +0.6

What is the 7-day forecast for Belas?

10-21

25.3° 14.9°

0.06 mm

10-22

24.7° 16.8°

1.63 mm

10-23

19.3° 14.8°

0.38 mm

10-24

20.8° 16.1°

10-25

23.3° 16.9°

10-26

19.2° 14.2°

10-27

27.4° 14.2°

8.5 mm

Both models agree Avg diff: 3.1°C

Where are air quality stations near Belas?

Mem Martins, Sintra, Portugal

7.3 km PM2.5: 9.6 µg/m³

Mem Martins, Sintra, Portugal

7.3 km PM2.5: 4.1 µg/m³

Mem Martins, Sintra, Portugal

7.3 km PM2.5: 2.4 µg/m³

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QSintra_Sensor1

10.4 km 20.0°C 41.0% RH PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³

Entrecampos, Lisboa, Portugal

10.4 km PM2.5: 5.5 µg/m³

Entrecampos, Lisboa, Portugal

10.4 km PM2.5: 3.1 µg/m³

Entrecampos, Lisboa, Portugal

10.4 km PM2.5: 7.9 µg/m³

Olivais, Lisboa, Portugal

13.5 km PM2.5: 5.3 µg/m³

Olivais, Lisboa, Portugal

13.5 km PM2.5: 1.2 µg/m³

Laranjeiro, Almada, Portugal

15.6 km PM2.5: 3.6 µg/m³

What cities are near Belas?

23 Olival 23 Queluz 22 Massamá 21 Cacém 25 Falagueira 24 Amadora 25 Damaia 25 Alfornelos 25 Pontinha 23 Carnaxide

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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.