Air Quality in Castellar del Vallès, Spain

Windy
29.1°C · 37.2% humidity
29.1°
Feels 29.1°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
22 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
23 2am
18
26
37 5am
33
30
28 8am
27
26
25 11am
24
24
24 2pm
3
3
3 5pm
3
3
3 8pm
23
23
23 11pm
23
23
Station readings
23
18
26
CAMS model adj -31
54
54
54
54
54
54
54
54
54
54
54
54
54
34
34
34
34
34
34
54
54
54
54
54
AD 728×90

Air Quality Index Trend

47h · 6 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.

37.2%
Humidity
59.7 km/h
Wind S
1014.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
37
8.93 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Castellar del Vallès?

Temperature & Precipitation

PM2.5 Trend

47h · 6 stations
PM2.58.93 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (22 stations within 25 km)
8.93
Median
8.51
Average
3.98
Low
14.0
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +1.1

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

08-03
37.2° 23.9°
0.19 mm
08-04
34.3° 22.6°
08-05
34.1° 21.4°
08-06
35.0° 23.4°
2.75 mm
08-07
39.0° 22.1°
08-08
27.1° 20.1°
0.31 mm
08-09
31.7° 21.9°
0.13 mm
Both models agree Avg diff: 3.2°C

Where are air quality stations near Castellar del Vallès?

25
Sabadell (Av.Gran Via), Catalunya, Spain
6.4 km PM2.5: 6.0 µg/m³
28
Sabadell (Av.Gran Via), Catalunya, Spain
6.4 km PM2.5: 6.7 µg/m³
24
Terrassa, Catalunya, Spain
9.2 km PM2.5: 5.8 µg/m³
25
Terrassa, Catalunya, Spain
9.2 km PM2.5: 6.0 µg/m³
50
Terrassa, Catalunya, Spain
9.2 km PM2.5: 12.0 µg/m³
19
Santa Perpètua de Mogoda, Catalunya, Spain
13.0 km PM2.5: 4.6 µg/m³
42
Mollet, Catalunya, Spain
13.1 km PM2.5: 10.1 µg/m³
39
Mollet, Catalunya, Spain
13.1 km PM2.5: 9.4 µg/m³
24
Mollet, Catalunya, Spain
13.1 km PM2.5: 5.8 µg/m³
–
Mollet, Catalunya, Spain
13.1 km

What cities are near Castellar del Vallès?

32 Caldes de Montbui 40 Terrassa 39 Sabadell 38 Sant Quirze del Vallès 36 Barberà del Vallès 41 Santa Perpètua de Mogoda 33 Parets del Vallès 32 Mollet del Vallès 34 Rubí 37 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 2026-08-08T03:08 UTC.