Air Quality in Castellar del Vallès, Spain

Clear
27.3°C · 28.8% humidity
27.3°
Feels 27.3°
43
Good
Air quality is satisfactory. Enjoy outdoor activities.
18 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
58 8am
58
58
43 11am
47
50
52 2pm
54
55
56 5pm
57
57
57 8pm
57
58
58 11pm
58
58
58 2am
58
58
58 5am
58
58
Station readings
58
43
58
45
CAMS model adj +4
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

48h · 1 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.

28.8%
Humidity
30.7 km/h
Wind SW
1010.5 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
43
10.43 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Castellar del Vallès?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.510.43 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (18 stations within 25 km)
10.43
Median
12.45
Average
1.4
Low
18.0
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +3.1

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

05-30
27.3° 11.2°
05-31
23.7° 15.2°
0.13 mm
06-01
28.0° 18.2°
06-02
19.7° 17.7°
4.25 mm
06-03
24.6° 17.0°
06-04
26.3° 16.3°
0.56 mm
06-05
30.0° 13.6°
1.81 mm
Both models agree Avg diff: 2.6°C

Where are air quality stations near Castellar del Vallès?

56
Sabadell (Av.Gran Via), Catalunya, Spain
6.4 km PM2.5: 14.5 µg/m³
30
Terrassa, Catalunya, Spain
9.2 km PM2.5: 7.2 µg/m³
18
Terrassa, Catalunya, Spain
9.2 km PM2.5: 4.3 µg/m³
36
Santa Perpètua de Mogoda, Catalunya, Spain
13.0 km PM2.5: 8.6 µg/m³
50
Mollet, Catalunya, Spain
13.1 km PM2.5: 12.0 µg/m³
37
Mollet, Catalunya, Spain
13.1 km PM2.5: 8.9 µg/m³
16
Can Barri
13.2 km PM2.5: 3.9 µg/m³ PM10: 4.7 µg/m³
26
Rubí (Ca n'Oriol), Catalunya, Spain
14.3 km PM2.5: 6.2 µg/m³
59
Rubí (Ca n'Oriol), Catalunya, Spain
14.3 km PM2.5: 15.9 µg/m³
34
Granollers, Catalunya, Spain
17.1 km PM2.5: 8.2 µg/m³

What cities are near Castellar del Vallès?

41 Caldes de Montbui 52 Terrassa 36 Sabadell 42 Sant Quirze del Vallès 45 Barberà del Vallès 30 Santa Perpètua de Mogoda 31 Parets del Vallès 21 Mollet del Vallès 39 Rubí 49 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 2026-05-30T09:20 UTC.