QSintra_Sensor1 Air Quality

Monitoring Station · Sintra, Portugal
21.1°
78.0% RH
75
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
71 3am
73
75
75 6am
83
63
63 9am
63
63
63 12pm
83
83
83 3pm
83
63
— 6pm
—
—
— 9pm
—
—
— 12am
—
—
Station readings
71
73
75
75
CAMS model adj +29
34
54
54
54
54
34
34
34
34
34
54
54
54
54
34
21.1°C
Temperature
78.0%
Humidity

Air Quality Forecast (24h)

PM2.523.3 µg/m³ ×1.6 WHO
Moderate
PM1026.1 µg/m³
Good
View city history →

Nearby Monitoring Stations

30
Mem Martins, Sintra, Portugal
3.1 km PM2.5: 7.2 µg/m³
21
Mem Martins, Sintra, Portugal
3.1 km PM2.5: 5.0 µg/m³
9
Aldeia de Juzo
9.2 km PM2.5: 2.1 µg/m³
11
Entrecampos, Lisboa, Portugal
20.8 km PM2.5: 2.6 µg/m³
24
Olivais, Lisboa, Portugal
23.9 km PM2.5: 5.8 µg/m³
38
Olivais, Lisboa, Portugal
23.9 km PM2.5: 9.1 µg/m³
20
Laranjeiro, Almada, Portugal
24.2 km PM2.5: 4.8 µg/m³
29
Laranjeiro, Almada, Portugal
24.2 km PM2.5: 7.0 µg/m³

Nearby Cities

74 Sintra 73 Algueirão 70 Rio de Mouro 71 Alcabideche 64 Cacém 58 Massamá 68 Estoril 68 Monte Estoril 55 Belas

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-22T06:43 UTC.