Air Quality in Alfena, Portugal
Clear
25.0°C · 48.1% humidity
25.0°
Feels 25.0°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations
Nearby Monitoring Stations
Alfena's air quality — share it
AQI Forecast
Calibrated
58
12pm
58
58
52
3pm
54
35
36
6pm
36
37
37
9pm
37
38
38
12am
38
58
58
3am
58
58
58
6am
58
38
38
9am
38
38
Station readings
57
60
58
59
CAMS model
adj +4
54
54
54
54
54
34
34
34
34
34
34
34
34
34
54
54
54
54
54
54
34
34
34
34
Air Quality Index Trend
48h · 1 stnAlfena'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.
48.1%
Humidity
7.1 km/h
Wind SW
1015.5 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
12.39 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for Alfena?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.512.39 µg/m³
✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX19.9
Extreme
Station readings (2 stations within 25 km)
12.39
Median
12.71
Average
9.6
Low
15.83
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +1.1
What is the 7-day forecast for Alfena?
05-30
25.0° 13.5°
05-31
26.1° 15.3°
0.88 mm
06-01
25.0° 13.8°
06-02
18.9° 11.4°
1.44 mm
06-03
25.3° 17.1°
6.44 mm
06-04
20.7° 15.2°
0.44 mm
06-05
28.3° 18.2°
0.69 mm
Both models agree
Avg diff: 3.3°C
Where are air quality stations near Alfena?
33
Paços de Ferreira, Paços de Ferreira, Portugal
19
Paços de Ferreira, Paços de Ferreira, Portugal
59
AirGradient O-1PST
50
Sobreiras-Lordelo do Ouro, Porto, Portugal
30
Sobreiras-Lordelo do Ouro, Porto, Portugal
What cities are near Alfena?
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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 2026-05-30T14:23 UTC.