Air Quality in Castelldefels, Spain

Windy
15.2°C · 82.2% humidity
15.2°
Feels 15.2°
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
20 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
63 4am
63
63
46 7am
39
42
45 10am
47
48
49 1pm
49
50
50 4pm
50
51
51 7pm
51
51
51 10pm
51
51
51 1am
51
51
Station readings
70
70
68
73
CAMS model adj -3
66
66
66
66
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

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.

82.2%
Humidity
75.6 km/h
Wind NNE
1006.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
46
10.97 µg/m³
PM10
38
41.2 µg/m³
050100150200300500

What is the weather forecast for Castelldefels?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.510.97 µg/m³ ✓ WHO
Good
PM1041.2 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (20 stations within 25 km)
10.97
Median
11.07
Average
1.7
Low
18.5
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +5.4

What is the 7-day forecast for Castelldefels?

05-30
21.6° 15.2°
05-31
20.3° 19.2°
06-01
21.8° 20.8°
06-02
21.3° 20.7°
0.5 mm
06-03
21.0° 19.1°
0.06 mm
06-04
20.9° 19.5°
0.31 mm
06-05
21.2° 19.7°
Both models agree Avg diff: 3.3°C

Where are air quality stations near Castelldefels?

42
Barcelona (Palau Reial), Catalunya, Spain
17.2 km PM2.5: 10.1 µg/m³
56
Sant Andreu de la Barca, Catalunya, Spain
19.2 km PM2.5: 14.5 µg/m³
37
Sant Andreu de la Barca, Catalunya, Spain
19.2 km PM2.5: 8.9 µg/m³
53
Barcelona (Eixample), Catalunya, Spain
19.4 km PM2.5: 13.1 µg/m³
32
Barcelona, Catalunya, Spain
20.2 km PM2.5: 7.7 µg/m³
42
Barcelona (Gràcia-St.Gervasi), Catalunya, Spain
20.3 km PM2.5: 10.1 µg/m³
50
Vilanova i la Geltrú
21.8 km PM2.5: 12.0 µg/m³ PM10: 30.0 µg/m³
16
Barcelona (Parc Vall d'Hebrón), Catalunya, Spain
22.2 km PM2.5: 3.8 µg/m³
1
Barcelona (Parc Vall d'Hebrón), Catalunya, Spain
22.2 km PM2.5: 0.2 µg/m³
20
Martorell, Catalunya, Spain
22.3 km PM2.5: 4.8 µg/m³

What cities are near Castelldefels?

47 Gavà 47 Viladecans 47 Sant Boi de Llobregat 52 El Prat de Llobregat 49 Sant Joan Despí 54 Cornellà de Llobregat 34 Sant Vicenç dels Horts 45 Sant Feliu de Llobregat 50 Sitges 58 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 2026-05-30T05:22 UTC.