What is the air quality in Castelldefels today?

The current Air Quality Index (AQI) in Castelldefels is 24 (Good). PM2.5 concentration is 5.77 µg/m³.

What is the temperature in Castelldefels right now?

The current temperature in Castelldefels is 18.8°C (feels like 18.8°C). Humidity is 66.3% and wind speed is 45.4 km/h.

Is it safe to go outside in Castelldefels?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Castelldefels, Spain

Windy

18.8°C · 66.3% humidity

18.8°

Feels 18.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

19 stations

Nearby Monitoring Stations

AQI Forecast

20 12pm

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24 3pm

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Station readings

Air Quality Index Trend

48h · 9 stn

View full history →

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.

66.3%

Humidity

45.4 km/h

Wind E

1018.5 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.77 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Castelldefels?

Temperature & Precipitation

PM2.5 Trend

48h · 9 stations

PM2.55.77 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (19 stations within 25 km)

5.77

Median

5.76

Average

2.4

Low

12.0

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +0.2

Both models agree Avg diff: 4.3°C

Where are air quality stations near Castelldefels?

Sant Vicenç dels Horts, Catalunya, Spain

13.1 km PM2.5: 5.0 µg/m³

Barcelona (Palau Reial), Catalunya, Spain

17.2 km PM2.5: 5.0 µg/m³

Barcelona (Palau Reial), Catalunya, Spain

17.2 km PM2.5: 4.8 µg/m³

Sant Andreu de la Barca, Catalunya, Spain

19.2 km PM2.5: 7.2 µg/m³

Barcelona (Eixample), Catalunya, Spain

19.4 km PM2.5: 5.3 µg/m³

Barcelona (Eixample), Catalunya, Spain

19.4 km PM2.5: 4.3 µg/m³

Barcelona (Eixample), Catalunya, Spain

19.4 km PM2.5: 4.3 µg/m³

Barcelona, Catalunya, Spain

20.2 km PM2.5: 5.8 µg/m³

Barcelona, Catalunya, Spain

20.2 km PM2.5: 5.8 µg/m³

Barcelona (Gràcia-St.Gervasi), Catalunya, Spain

20.3 km PM2.5: 4.3 µg/m³

What cities are near Castelldefels?

25 Gavà 25 Viladecans 25 Sant Boi de Llobregat 25 El Prat de Llobregat 25 Sant Joan Despí 25 Cornellà de Llobregat 21 Sant Vicenç dels Horts 25 Sant Feliu de Llobregat 20 Sitges 25 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 2026-10-21T13:14 UTC.