Air Quality in Cascais, Portugal

Windy
19.2°C · 79.9% humidity
19.2°
Feels 19.2°
65
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
64 1pm
66
82
65 4pm
70
53
56 7pm
58
59
60 10pm
60
81
81 1am
61
62
62 4am
62
62
62 7am
62
62
62 10am
62
62
Station readings
64
66
CAMS model adj +28
34
54
54
54
54
34
34
34
34
34
34
54
54
34
34
34
34
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

46h · 2 stn

Cascais'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. Current PM2.5 concentration in Cascais is 1.3× the WHO 24-hour guideline of 15 µg/m³.

79.9%
Humidity
137.4 km/h
Wind N
1017.2 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
65
18.78 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Cascais?

Temperature & Precipitation

PM2.5 Trend

46h · 2 stations
PM2.518.78 µg/m³ ×1.3 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX6.9
High
AD 300×250
Station readings (2 stations within 25 km)
18.78
Median
18.34
Average
17.73
Low
18.95
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -7.9

What is the 7-day forecast for Cascais?

09-05
21.2° 19.2°
09-06
20.1° 19.2°
09-07
20.9° 19.1°
09-08
20.9° 19.2°
1.19 mm
09-09
23.6° 19.1°
0.06 mm
09-10
22.3° 19.9°
0.19 mm
09-11
20.0° 19.1°
0.06 mm
Both models agree Avg diff: 2.8°C

Where are air quality stations near Cascais?

68
Aldeia de Juzo
4.6 km 36.1°C 35.0% RH PM2.5: 20.0 µg/m³ PM10: 22.1 µg/m³
59
QSintra_Sensor1
11.3 km 37.0°C 38.0% RH PM2.5: 15.8 µg/m³ PM10: 18.9 µg/m³
24
Laranjeiro, Almada, Portugal
23.2 km PM2.5: 5.8 µg/m³

What cities are near Cascais?

65 Monte Estoril 65 Estoril 65 Alcabideche 64 Parede 64 São Domingos de Rana 64 Carcavelos 64 Oeiras 63 Rio de Mouro 64 Paço de Arcos 63 Sintra
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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 2026-09-05T15:06 UTC.