Air Quality in Castellar del Vallès, Spain

Partly Cloudy
17.8°C · 59.6% humidity
17.8°
Feels 17.8°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
26 stations

Nearby Monitoring Stations

AQI Forecast
22 12pm
19
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28 3pm
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Station readings
22
19
4
17

Air Quality Index Trend

48h · 10 stn

Castellar del Vallès'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.

59.6%
Humidity
26.2 km/h
Wind SW
1018.2 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
28
6.78 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Castellar del Vallès?

Temperature & Precipitation

PM2.5 Trend

48h · 10 stations
PM2.56.78 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.0
Low
Station readings (26 stations within 25 km)
6.78
Median
5.96
Average
1.0
Low
11.3
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -0.3

What is the 7-day forecast for Castellar del Vallès?

10-21
17.8° 9.1°
10-22
21.6° 12.5°
0.31 mm
10-23
18.5° 8.7°
0.69 mm
10-24
15.1° 10.7°
0.69 mm
10-25
19.8° 10.9°
0.25 mm
10-26
14.2° 12.1°
10-27
19.8° 9.0°
Both models agree Avg diff: 2.5°C

Where are air quality stations near Castellar del Vallès?

47
Sabadell (Av.Gran Via), Catalunya, Spain
6.4 km PM2.5: 11.3 µg/m³
45
Sabadell (Av.Gran Via), Catalunya, Spain
6.4 km PM2.5: 10.8 µg/m³
15
Terrassa, Catalunya, Spain
9.2 km PM2.5: 3.6 µg/m³
14
Terrassa, Catalunya, Spain
9.2 km PM2.5: 3.4 µg/m³
16
Terrassa, Catalunya, Spain
9.2 km PM2.5: 3.8 µg/m³
13
Santa Perpètua de Mogoda, Catalunya, Spain
13.0 km PM2.5: 3.1 µg/m³
25
Santa Perpètua de Mogoda, Catalunya, Spain
13.0 km PM2.5: 6.0 µg/m³
12
Santa Perpètua de Mogoda, Catalunya, Spain
13.0 km PM2.5: 2.9 µg/m³
12
Santa Perpètua de Mogoda, Catalunya, Spain
13.0 km PM2.5: 2.9 µg/m³
9
Mollet, Catalunya, Spain
13.1 km PM2.5: 2.2 µg/m³

What cities are near Castellar del Vallès?

24 Caldes de Montbui 16 Terrassa 37 Sabadell 30 Sant Quirze del Vallès 26 Barberà del Vallès 20 Santa Perpètua de Mogoda 20 Parets del Vallès 17 Mollet del Vallès 16 Rubí 27 Ripollet
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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 2026-10-21T13:15 UTC.