Air Quality in Porto, Portugal
Windy
25.3°C · 28.7% humidity
25.3°
Feels 25.3°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Porto's air quality — share it
AQI Forecast
Calibrated
25
11am
25
25
20
2pm
21
22
23
5pm
31
31
31
8pm
32
32
25
11pm
25
25
32
2am
32
25
25
5am
25
25
25
8am
25
25
Station readings
28
18
6
CAMS model
adj -2
27
27
27
27
27
27
27
34
34
34
34
34
27
27
27
34
34
27
27
27
27
27
27
27
Air Quality Index Trend
34h · 1 stnPorto'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.
28.7%
Humidity
60.7 km/h
Wind WNW
1012.8 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.77 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Porto?
Temperature & Precipitation
PM2.5 Trend
34h · 1 stationPM2.54.77 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX24.9
Extreme
Station readings (2 stations within 25 km)
4.77
Median
6.0
Average
2.91
Low
9.1
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.5
What is the 7-day forecast for Porto?
06-09
25.3° 14.0°
06-10
20.4° 12.2°
0.62 mm
06-11
37.6° 20.7°
0.13 mm
06-12
34.5° 19.9°
1.06 mm
06-13
25.8° 14.0°
1.94 mm
06-14
23.0° 15.6°
0.69 mm
06-15
26.8° 16.3°
Both models agree
Avg diff: 5.3°C
Where are air quality stations near Porto?
25
Sobreiras-Lordelo do Ouro, Porto, Portugal
51
Sobreiras-Lordelo do Ouro, Porto, Portugal
6
AirGradient O-1PST
33
Paços de Ferreira, Paços de Ferreira, Portugal
31
Paços de Ferreira, Paços de Ferreira, Portugal
What cities are near Porto?
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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 2026-06-09T13:28 UTC.