Air Quality in Oeiras, Portugal

Windy
23.7°C · 31.7% humidity
23.7°
Feels 23.7°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
13 9am
14
20
21 12pm
19
17
16 3pm
22
22
21 6pm
21
41
40 9pm
40
20
20 12am
20
20
20 3am
20
20
20 6am
20
20
Station readings
12
14
20
CAMS model adj -14
27
27
27
27
27
27
27
34
34
34
34
54
54
54
34
34
34
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

46h · 2 stn

Oeiras'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.

31.7%
Humidity
98.1 km/h
Wind NNW
1013.5 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
21
5.13 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Oeiras?

Temperature & Precipitation

PM2.5 Trend

46h · 2 stations
PM2.55.13 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250
Station readings (3 stations within 25 km)
5.13
Median
5.43
Average
3.95
Low
8.2
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.1
Both models agree Avg diff: 4.7°C

Where are air quality stations near Oeiras?

26
Mem Martins, Sintra, Portugal
10.9 km PM2.5: 6.2 µg/m³
52
Mem Martins, Sintra, Portugal
10.9 km PM2.5: 12.6 µg/m³
17
Aldeia de Juzo
12.9 km 31.1°C 32.0% RH PM2.5: 4.0 µg/m³ PM10: 5.0 µg/m³
22
QSintra_Sensor1
13.0 km 21.0°C 61.0% RH PM2.5: 5.3 µg/m³ PM10: 6.0 µg/m³
35
Laranjeiro, Almada, Portugal
13.6 km PM2.5: 8.4 µg/m³
31
Laranjeiro, Almada, Portugal
13.6 km PM2.5: 7.4 µg/m³
28
Entrecampos, Lisboa, Portugal
15.4 km PM2.5: 6.7 µg/m³
24
Olivais, Lisboa, Portugal
19.6 km PM2.5: 5.8 µg/m³
26
Olivais, Lisboa, Portugal
19.6 km PM2.5: 6.2 µg/m³
8
Paio Pires, Seixal
21.3 km PM2.5: 2.0 µg/m³ PM10: 22.0 µg/m³

What cities are near Oeiras?

21 Carcavelos 23 Paço de Arcos 20 São Domingos de Rana 19 Parede 28 Linda-a-Velha 28 Carnaxide 29 Algés 23 Massamá 18 Estoril 17 Monte Estoril
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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 2026-06-09T11:07 UTC.