Air Quality in Porto, Portugal

Windy
15.5°C · 55.4% humidity
15.5°
Feels 15.5°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
63 2pm
63
63
26 5pm
31
34
37 8pm
39
40
41 11pm
41
42
42 2am
42
43
43 5am
43
43
43 8am
43
43
43 11am
43
43
Station readings
58
59
54
32
CAMS model adj +9
54
54
54
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

48h · 1 stn

Porto'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.

55.4%
Humidity
56.5 km/h
Wind WNW
1017.9 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
26
6.23 µg/m³
PM10▲
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Porto?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.56.23 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX9.4
Very High
AD 300×250
Station readings (3 stations within 25 km)
6.23
Median
8.6
Average
5.8
Low
12.31
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +4.6

What is the 7-day forecast for Porto?

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 Porto?

47
Sobreiras-Lordelo do Ouro, Porto, Portugal
4.0 km PM2.5: 11.3 µg/m³
50
Sobreiras-Lordelo do Ouro, Porto, Portugal
4.0 km PM2.5: 12.0 µg/m³
32
AirGradient O-1PST
15.8 km 27.7°C 60.2% RH PM2.5: 7.7 µg/m³ PM10: 10.4 µg/m³
36
Paços de Ferreira, Paços de Ferreira, Portugal
24.1 km PM2.5: 8.6 µg/m³
35
Paços de Ferreira, Paços de Ferreira, Portugal
24.1 km PM2.5: 8.4 µg/m³

What cities are near Porto?

29 Bomfim 26 Vila Nova de Gaia 28 Paranhos 24 Afurada de Baixo 24 Lordelo do Ouro 30 Campanhã 30 Oliveira do Douro 28 Santo Ovídio 25 Canidelo 28 São Mamede de Infesta
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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 2026-05-30T16:19 UTC.