Air Quality in Paço de Arcos, Portugal

Windy
21.0°C · 54.1% humidity
21.0°
Feels 21.0°
63
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
62 5pm
66
62
63 8pm
65
65
45 11pm
45
45
45 2am
45
45
45 5am
45
45
45 8am
45
45
45 11am
45
45
38 2pm
38
38
Station readings
62
66
62
CAMS model adj +11
54
54
54
54
54
54
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
27
27
27
AD 728×90

Air Quality Index Trend

47h · 2 stn

Paço de Arcos'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 Paço de Arcos is 1.2× the WHO 24-hour guideline of 15 µg/m³.

54.1%
Humidity
96.1 km/h
Wind NNW
1016.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
63
17.92 µg/m³
PM10
38
41.2 µg/m³
050100150200300500

What is the weather forecast for Paço de Arcos?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.517.92 µg/m³ ×1.2 WHO
Moderate
PM1041.2 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
17.92
Median
17.85
Average
16.83
Low
18.87
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -7.1

What is the 7-day forecast for Paço de Arcos?

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: 3.2°C

Where are air quality stations near Paço de Arcos?

46
Mem Martins, Sintra, Portugal
11.0 km PM2.5: 11.0 µg/m³
79
Mem Martins, Sintra, Portugal
11.0 km PM2.5: 25.4 µg/m³
29
Laranjeiro, Almada, Portugal
12.1 km PM2.5: 7.0 µg/m³
24
Laranjeiro, Almada, Portugal
12.1 km PM2.5: 5.8 µg/m³
36
Laranjeiro, Almada, Portugal
12.1 km PM2.5: 8.6 µg/m³
60
QSintra_Sensor1
13.4 km 26.0°C 61.0% RH PM2.5: 16.2 µg/m³ PM10: 18.2 µg/m³
37
Entrecampos, Lisboa, Portugal
13.7 km PM2.5: 8.9 µg/m³
1
Entrecampos, Lisboa, Portugal
13.7 km PM2.5: 0.2 µg/m³
64
Aldeia de Juzo
14.4 km 31.6°C 38.0% RH PM2.5: 18.1 µg/m³ PM10: 20.0 µg/m³
52
Olivais, Lisboa, Portugal
17.9 km PM2.5: 12.6 µg/m³

What cities are near Paço de Arcos?

63 Oeiras 63 Carcavelos 63 São Domingos de Rana 63 Linda-a-Velha 64 Carnaxide 63 Algés 63 Parede 64 Massamá 64 Alfragide 64 Queluz
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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 2026-09-05T19:32 UTC.