Air Quality in Cascais, Portugal
Drizzle
17.8°C · 83.7% humidity
17.8°
Feels 17.8°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Cascais's air quality — share it
AQI Forecast
Calibrated
34
12pm
37
38
35
3pm
37
37
37
6pm
37
37
17
9pm
17
17
17
12am
17
37
17
3am
17
17
17
6am
17
17
17
9am
17
17
Station readings
34
37
38
32
CAMS model
adj -17
54
54
54
54
54
54
54
54
54
34
34
34
34
34
54
34
34
34
34
34
34
34
34
34
Air Quality Index Trend
48h · 2 stnCascais'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.
83.7%
Humidity
67.9 km/h
Wind S
1015.7 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
8.35 µg/m³
PM10
34.3 µg/m³
050100150200300500
What is the weather forecast for Cascais?
Temperature & Precipitation
PM2.5 Trend
48h · 2 stationsPM2.58.35 µg/m³
✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX19.9
Extreme
Station readings (3 stations within 25 km)
8.35
Median
6.41
Average
4.1
Low
8.83
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +5.2
What is the 7-day forecast for Cascais?
05-30
17.8° 15.9°
1.19 mm
05-31
17.8° 16.1°
0.56 mm
06-01
17.6° 16.3°
06-02
16.8° 15.6°
0.44 mm
06-03
17.4° 16.6°
1.5 mm
06-04
16.6° 15.8°
06-05
20.0° 16.9°
0.06 mm
Both models agree
Avg diff: 2.1°C
Where are air quality stations near Cascais?
33
Aldeia de Juzo
24
QSintra_Sensor1
43
Mem Martins, Sintra, Portugal
38
Mem Martins, Sintra, Portugal
51
Laranjeiro, Almada, Portugal
30
Laranjeiro, Almada, Portugal
57
Entrecampos, Lisboa, Portugal
What cities are near Cascais?
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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 2026-05-30T14:23 UTC.