Air Quality in Belas, Portugal

Cloudy
18.3°C · 89.0% humidity
18.3°
Feels 18.3°
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
63 4am
83
83
55 7am
63
49
53 10am
56
58
59 1pm
80
81
82 4pm
82
62
62 7pm
63
63
63 10pm
56
56
56 1am
56
56
Station readings
71
73
75
75
CAMS model adj +29
34
54
54
54
54
34
34
34
34
34
54
54
54
54
34
34
34
34
34
27
27
27
27
27
AD 728×90

Air Quality Index Trend

48h · 1 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.

89.0%
Humidity
23.9 km/h
Wind NNW
1018.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
55
14.02 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Belas?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.514.02 µg/m³ ✓ WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
14.02
Median
14.02
Average
4.8
Low
23.24
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -0.5

What is the 7-day forecast for Belas?

07-22
26.7° 18.3°
07-23
33.2° 19.2°
0.44 mm
07-24
25.3° 18.6°
07-25
24.3° 18.4°
07-26
26.5° 16.6°
07-27
27.2° 18.8°
07-28
38.0° 18.4°
Both models agree Avg diff: 2.7°C

Where are air quality stations near Belas?

21
Mem Martins, Sintra, Portugal
7.3 km PM2.5: 5.0 µg/m³
30
Mem Martins, Sintra, Portugal
7.3 km PM2.5: 7.2 µg/m³
75
QSintra_Sensor1
10.4 km 21.1°C 78.0% RH PM2.5: 23.3 µg/m³ PM10: 26.1 µg/m³
11
Entrecampos, Lisboa, Portugal
10.4 km PM2.5: 2.6 µg/m³
24
Olivais, Lisboa, Portugal
13.5 km PM2.5: 5.8 µg/m³
38
Olivais, Lisboa, Portugal
13.5 km PM2.5: 9.1 µg/m³
20
Laranjeiro, Almada, Portugal
15.6 km PM2.5: 4.8 µg/m³
29
Laranjeiro, Almada, Portugal
15.6 km PM2.5: 7.0 µg/m³
9
Aldeia de Juzo
17.0 km 26.1°C 52.0% RH PM2.5: 2.1 µg/m³ PM10: 2.5 µg/m³
17
Paio Pires, Seixal
23.4 km PM2.5: 4.0 µg/m³ PM10: 16.0 µg/m³

What cities are near Belas?

49 Olival 49 Queluz 58 Massamá 64 Cacém 36 Falagueira 36 Amadora 29 Damaia 27 Alfornelos 26 Pontinha 42 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 2026-07-22T06:43 UTC.