What is the air quality in Colchester today?

The current Air Quality Index (AQI) in Colchester is 42 (Good). PM2.5 concentration is 9.95 µg/m³.

What is the temperature in Colchester right now?

The current temperature in Colchester is 13.6°C (feels like 13.6°C). Humidity is 63.8% and wind speed is 73.0 km/h.

Is it safe to go outside in Colchester?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 1.4 (Low).

Air Quality in Colchester, United Kingdom

Windy

13.6°C · 63.8% humidity

13.6°

Feels 13.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 4pm

42 7pm

31 10pm

27 1am

25 4am

24 7am

25 10am

25 1pm

Air Quality Index Trend

44h · 4 stn

View full history →

Colchester'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.

63.8%

Humidity

73.0 km/h

Wind NE

1024.4 hPa

Pressure

1.4

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.95 µg/m³

PM10

20.55 µg/m³

050100150200300500

What is the weather forecast for Colchester?

Temperature & Precipitation

PM2.5 Trend

44h · 4 stations

PM2.59.95 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX1.4

Low

What is the 7-day forecast for Colchester?

05-29

14.0° 13.6°

1.19 mm

05-30

17.3° 12.7°

0.13 mm

05-31

18.7° 9.1°

06-01

19.1° 8.9°

0.13 mm

06-02

18.1° 12.3°

1.13 mm

06-03

17.6° 10.7°

0.13 mm

06-04

25.2° 16.9°

3.62 mm

Both models agree Avg diff: 3.4°C

What cities are near Colchester?

37 Sudbury 53 Clacton-on-Sea 39 Witham 46 Maldon 37 Braintree 52 Frinton-on-Sea 52 Walton-on-the-Naze 38 Ipswich 38 Harwich 40 Felixstowe

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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 2026-05-29T18:43 UTC.