Air Quality in São Tiago de Custoias, Portugal

Windy
19.1°C · 81.1% humidity
19.1°
Feels 19.1°
44
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast
66 1am
66
66
44 4am
50
55
58 7am
60
62
51 10am
52
52
53 1pm
33
33
34 4pm
34
34
34 7pm
34
34
34 10pm
34
54
AD 728×90

Air Quality Index Trend

45h · 3 stn

São Tiago de Custoias'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.

81.1%
Humidity
159.6 km/h
Wind NNW
1016.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
44
10.55 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for São Tiago de Custoias?

Temperature & Precipitation

PM2.5 Trend

45h · 3 stations
PM2.510.55 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
10.55
Median
10.2
Average
9.8
Low
10.6
High
PM2.5 µg/m³ · Model: 9.75 · Bias: -0.8

What is the 7-day forecast for São Tiago de Custoias?

08-03
23.6° 16.6°
3.88 mm
08-04
21.6° 18.7°
08-05
21.1° 18.8°
08-06
20.8° 16.1°
08-07
20.1° 18.0°
0.31 mm
08-08
20.1° 19.0°
08-09
20.7° 18.3°
Both models agree Avg diff: 2.0°C

Where are air quality stations near São Tiago de Custoias?

13
Sobreiras-Lordelo do Ouro, Porto, Portugal
6.2 km PM2.5: 3.1 µg/m³
35
Sobreiras-Lordelo do Ouro, Porto, Portugal
6.2 km PM2.5: 8.4 µg/m³
32
Paços de Ferreira, Paços de Ferreira, Portugal
23.0 km PM2.5: 7.7 µg/m³
33
Paços de Ferreira, Paços de Ferreira, Portugal
23.0 km PM2.5: 7.9 µg/m³

What cities are near São Tiago de Custoias?

44 Leça do Bailio 44 São Mamede de Infesta 44 Senhora da Hora 43 Maia 44 Paranhos 44 Aldoar 43 Águas Santas 44 Matosinhos 43 Vermoim 44 Lordelo do Ouro
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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 2026-08-08T03:28 UTC.