Air Quality in Belas, Portugal

Windy
21.0°C · 54.1% humidity
21.0°
Feels 21.0°
58
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
66 1pm
61
68
58 4pm
59
59
59 7pm
59
59
59 10pm
39
39
39 1am
39
39
39 4am
39
39
39 7am
39
39
39 10am
39
39
Station readings
66
61
68
CAMS model adj +5
54
54
54
54
54
54
54
54
54
54
34
34
34
34
34
34
34
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

47h · 2 stn

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. Current PM2.5 concentration in Belas is 1.0× the WHO 24-hour guideline of 15 µg/m³.

54.1%
Humidity
96.1 km/h
Wind NNW
1016.6 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
58
15.63 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Belas?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.515.63 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250
Station readings (3 stations within 25 km)
15.63
Median
15.39
Average
8.2
Low
19.3
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -4.8

What is the 7-day forecast for Belas?

09-05
30.1° 20.7°
09-06
26.4° 18.4°
09-07
27.9° 17.8°
09-08
26.1° 19.2°
1.37 mm
09-09
33.9° 18.0°
09-10
27.8° 21.1°
0.44 mm
09-11
26.1° 19.3°
Both models agree Avg diff: 3.5°C

Where are air quality stations near Belas?

46
Mem Martins, Sintra, Portugal
7.3 km PM2.5: 11.0 µg/m³
69
QSintra_Sensor1
10.4 km 35.0°C 40.1% RH PM2.5: 20.6 µg/m³ PM10: 21.5 µg/m³
37
Entrecampos, Lisboa, Portugal
10.4 km PM2.5: 8.9 µg/m³
34
Olivais, Lisboa, Portugal
13.5 km PM2.5: 8.2 µg/m³
27
Olivais, Lisboa, Portugal
13.5 km PM2.5: 6.5 µg/m³
24
Laranjeiro, Almada, Portugal
15.6 km PM2.5: 5.8 µg/m³
40
Laranjeiro, Almada, Portugal
15.6 km PM2.5: 9.6 µg/m³
68
Aldeia de Juzo
17.0 km 35.5°C 35.0% RH PM2.5: 20.0 µg/m³ PM10: 21.3 µg/m³

What cities are near Belas?

56 Olival 57 Queluz 60 Massamá 62 Cacém 53 Falagueira 54 Amadora 50 Damaia 48 Alfornelos 46 Pontinha 56 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 2026-09-05T15:46 UTC.