Air Quality in Castelldefels, Spain

Drizzle
26.0°C · 81.1% humidity
26.0°
Feels 26.0°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
15 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
42 8am
42
42
52 11am
49
47
46 2pm
57
56
55 5pm
55
55
54 8pm
54
54
54 11pm
54
54
54 2am
54
54
54 5am
54
54
Station readings
38
34
17
54
CAMS model adj -12
54
54
54
54
54
54
54
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
AD 728×90

Air Quality Index Trend

48h · 9 stn

Castelldefels'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.

81.1%
Humidity
46.2 km/h
Wind ENE
1011.9 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
52
12.57 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Castelldefels?

Temperature & Precipitation

PM2.5 Trend

48h · 9 stations
PM2.512.57 µg/m³ ✓ WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250
Station readings (15 stations within 25 km)
12.57
Median
12.59
Average
6.2
Low
15.0
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -2.6

What is the 7-day forecast for Castelldefels?

07-22
26.7° 26.0°
0.25 mm
07-23
27.3° 25.0°
0.06 mm
07-24
25.8° 25.2°
0.25 mm
07-25
27.8° 22.8°
07-26
27.8° 25.6°
07-27
27.5° 25.8°
07-28
28.5° 25.3°
0.19 mm
Both models agree Avg diff: 2.7°C

Where are air quality stations near Castelldefels?

36
Barcelona (Palau Reial), Catalunya, Spain
17.2 km PM2.5: 8.6 µg/m³
26
Sant Andreu de la Barca, Catalunya, Spain
19.2 km PM2.5: 6.2 µg/m³
25
Sant Andreu de la Barca, Catalunya, Spain
19.2 km PM2.5: 6.0 µg/m³
18
Barcelona (Eixample), Catalunya, Spain
19.4 km PM2.5: 4.3 µg/m³
21
Barcelona, Catalunya, Spain
20.2 km PM2.5: 5.0 µg/m³
1
Barcelona (Gràcia-St.Gervasi), Catalunya, Spain
20.3 km PM2.5: 0.2 µg/m³
46
Vilanova i la Geltrú
21.8 km PM2.5: 11.0 µg/m³ PM10: 24.0 µg/m³
55
Barcelona (Parc Vall d'Hebrón), Catalunya, Spain
22.2 km PM2.5: 14.0 µg/m³
18
Barcelona (Parc Vall d'Hebrón), Catalunya, Spain
22.2 km PM2.5: 4.3 µg/m³
42
Martorell, Catalunya, Spain
22.3 km PM2.5: 10.1 µg/m³

What cities are near Castelldefels?

51 Gavà 51 Viladecans 52 Sant Boi de Llobregat 52 El Prat de Llobregat 52 Sant Joan Despí 52 Cornellà de Llobregat 52 Sant Vicenç dels Horts 52 Sant Feliu de Llobregat 48 Sitges 53 L'Hospitalet de Llobregat
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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 2026-07-22T09:05 UTC.