Air Quality in Alfragide, Portugal

Windy
21.0°C · 54.1% humidity
21.0°
Feels 21.0°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
66 1pm
62
68
52 4pm
55
56
58 7pm
59
59
60 10pm
40
40
41 1am
41
41
41 4am
41
41
41 7am
41
41
41 10am
41
41
Station readings
66
62
68
CAMS model adj +7
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

Alfragide'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.

54.1%
Humidity
96.1 km/h
Wind NNW
1016.6 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
52
12.68 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.512.68 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250
12.68
Median
15.39
Average
8.2
Low
19.3
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -1.8
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°
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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 2026-09-05T15:47 UTC.