Air Quality in São Tiago de Custoias, Portugal

Windy
15.6°C · 61.9% humidity
15.6°
Feels 15.6°
57
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
48 1pm
68
68
57 4pm
40
42
44 7pm
45
46
47 10pm
47
47
47 1am
48
48
48 4am
48
48
48 7am
48
48
48 10am
48
48
Station readings
60
58
59
54
CAMS model adj +14
34
54
54
54
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

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.

61.9%
Humidity
69.8 km/h
Wind NW
1018.2 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
57
14.85 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for São Tiago de Custoias?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.514.85 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (1 station within 25 km)
14.85
Median
14.85
Average
14.85
Low
14.85
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -1.4
Both models agree Avg diff: 2.3°C

Where are air quality stations near São Tiago de Custoias?

46
Sobreiras-Lordelo do Ouro, Porto, Portugal
6.2 km PM2.5: 11.0 µg/m³
50
Sobreiras-Lordelo do Ouro, Porto, Portugal
6.2 km PM2.5: 12.0 µg/m³
54
AirGradient O-1PST
19.2 km 29.1°C 57.9% RH PM2.5: 13.4 µg/m³ PM10: 20.6 µg/m³
33
Paços de Ferreira, Paços de Ferreira, Portugal
23.0 km PM2.5: 7.9 µg/m³
34
Paços de Ferreira, Paços de Ferreira, Portugal
23.0 km PM2.5: 8.2 µg/m³

What cities are near São Tiago de Custoias?

57 Leça do Bailio 57 São Mamede de Infesta 57 Senhora da Hora 57 Maia 57 Paranhos 57 Aldoar 57 Águas Santas 57 Matosinhos 57 Vermoim 57 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 2026-05-30T15:28 UTC.