Air Quality in Harwich, United Kingdom
Windy
13.5°C · 78.6% humidity
13.5°
Feels 13.5°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Harwich's air quality — share it
AQI Forecast
Calibrated
14
3am
14
14
15
6am
14
14
14
9am
14
34
34
12pm
34
14
14
3pm
7
5
5
6pm
5
5
5
9pm
5
5
5
12am
5
5
Station readings
17
12
17
CAMS model
adj -20
34
34
34
34
34
34
34
34
54
54
54
34
34
27
25
25
25
25
25
25
25
25
25
25
Air Quality Index Trend
47h · 1 stnHarwich'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.
78.6%
Humidity
44.7 km/h
Wind NNE
1016.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
3.67 µg/m³
PM10▲
27.4 µg/m³
050100150200300500
What is the weather forecast for Harwich?
Temperature & Precipitation
PM2.5 Trend
47h · 1 stationPM2.53.67 µg/m³
✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
3.67
Median
3.67
Average
3.67
Low
3.67
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +3.7
What is the 7-day forecast for Harwich?
07-22
23.5° 13.0°
3.13 mm
07-23
18.6° 15.5°
1.13 mm
07-24
18.6° 16.1°
3.88 mm
07-25
25.6° 13.4°
07-26
21.6° 13.5°
1.31 mm
07-27
26.3° 17.2°
0.44 mm
07-28
23.5° 16.0°
Both models agree
Avg diff: 2.8°C
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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 2026-07-22T05:34 UTC.