What is the air quality in Chelsea today?

The current Air Quality Index (AQI) in Chelsea is 18 (Good). PM2.5 concentration is 4.2 µg/m³.

What is the temperature in Chelsea right now?

The current temperature in Chelsea is 12.3°C (feels like 12.3°C). Humidity is 74.9% and wind speed is 38.6 km/h.

Is it safe to go outside in Chelsea?

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

Air Quality in Chelsea, United Kingdom

Drizzle

12.3°C · 74.9% humidity

12.3°

Feels 12.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

25 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 30 stn

View full history →

Chelsea'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.

74.9%

Humidity

38.6 km/h

Wind NNE

1019.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.2 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Chelsea?

Temperature & Precipitation

PM2.5 Trend

45h · 30 stations

PM2.54.2 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (25 stations within 25 km)

4.2

Median

7.69

Average

0.7

Low

69.1

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +1.6

What is the 7-day forecast for Chelsea?

10-21

12.3° 7.8°

1.0 mm

10-22

19.2° 8.8°

10-23

13.5° 10.1°

13.94 mm

10-24

14.5° 10.2°

0.06 mm

10-25

16.0° 10.9°

6.06 mm

10-26

11.7° 8.7°

0.81 mm

10-27

17.9° 6.8°

1.44 mm

Both models agree Avg diff: 2.8°C

Where are air quality stations near Chelsea?

Wandsworth - Battersea, United Kingdom

2.1 km PM2.5: 1.0 µg/m³

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Westminster - Waterloo Pl (Crown Estate), new

3.4 km

Regent Street (The Crown Estate), new

3.4 km PM2.5: 8.6 µg/m³ PM10: 11.7 µg/m³

London

3.6 km PM2.5: 14.0 µg/m³

Richmond Upon Thames - Barnes Wetlands, United Kingdom

4.4 km PM2.5: 12.0 µg/m³

Richmond Upon Thames - Barnes Wetlands, United Kingdom

4.4 km PM2.5: 5.5 µg/m³

Richmond Upon Thames - Barnes Wetlands, United Kingdom

4.4 km PM2.5: 5.5 µg/m³

Richmond Upon Thames - Barnes Wetlands, United Kingdom

4.4 km PM2.5: 27.3 µg/m³

NASA GSFC Rutgers Calib. N16

4.5 km PM2.5: 3.4 µg/m³

Lambeth - Brixton Road, United Kingdom

4.6 km PM2.5: 9.1 µg/m³

What cities are near Chelsea?

12 Battersea 18 Fulham 12 Pimlico 19 City of Westminster 23 Bayswater 23 Notting Hill 17 Soho 21 London 20 Shepherds Bush 20 Putney

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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.