Air Quality in Sintra, Portugal
Windy
17.0°C · 75.5% humidity
17.0°
Feels 17.0°
8
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Sintra's air quality — share it
AQI Forecast
Calibrated
8
7am
4
8
8
10am
8
8
8
1pm
8
8
15
4pm
15
15
15
7pm
35
35
35
10pm
15
15
15
1am
15
15
15
4am
15
15
Station readings
8
4
12
12
CAMS model
adj -19
25
25
27
27
27
27
27
27
27
34
34
34
34
54
54
54
34
34
34
34
34
34
34
34
Air Quality Index Trend
47h · 2 stnSintra'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.
75.5%
Humidity
142.2 km/h
Wind NNW
1014.8 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.93 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Sintra?
Temperature & Precipitation
PM2.5 Trend
47h · 2 stationsPM2.51.93 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX9.4
Very High
Station readings (2 stations within 25 km)
1.93
Median
2.64
Average
1.92
Low
3.37
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +4.3
What is the 7-day forecast for Sintra?
06-09
17.8° 15.8°
06-10
17.1° 16.3°
0.06 mm
06-11
22.3° 17.9°
06-12
21.2° 17.3°
06-13
19.2° 16.9°
06-14
18.1° 16.7°
0.38 mm
06-15
19.1° 17.2°
Both models agree
Avg diff: 3.5°C
Where are air quality stations near Sintra?
12
QSintra_Sensor1
26
Mem Martins, Sintra, Portugal
22
Mem Martins, Sintra, Portugal
16
Aldeia de Juzo
28
Entrecampos, Lisboa, Portugal
24
Olivais, Lisboa, Portugal
26
Olivais, Lisboa, Portugal
31
Laranjeiro, Almada, Portugal
17
Laranjeiro, Almada, Portugal
What cities are near Sintra?
Get AQI alerts for Sintra
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T09:49 UTC.