Air Quality in St Helens, United Kingdom

Partly Cloudy
14.4°C · 58.6% humidity
14.4°
Feels 14.4°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast
27 5pm
27
34
32 8pm
38
43
46 11pm
28
30
31 2am
32
32
33 5am
33
26
27 8am
34
34
34 11am
34
34
27 2pm
27
27
AD 728×90

Air Quality Index Trend

45h · 10 stn

St Helens'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.

58.6%
Humidity
36.0 km/h
Wind WNW
1029.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
32
7.7 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for St Helens?

Temperature & Precipitation

PM2.5 Trend

45h · 10 stations
PM2.57.7 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (7 stations within 25 km)
7.7
Median
8.56
Average
2.9
Low
21.1
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +2.0

What is the 7-day forecast for St Helens?

09-05
14.4° 11.2°
0.38 mm
09-06
17.4° 12.3°
1.63 mm
09-07
14.5° 13.3°
1.88 mm
09-08
22.0° 11.1°
1.0 mm
09-09
17.5° 9.9°
1.81 mm
09-10
20.7° 14.0°
0.13 mm
09-11
14.1° 10.7°
2.75 mm
Both models agree Avg diff: 2.5°C

Where are air quality stations near St Helens?

26
Warrington, United Kingdom
10.3 km PM2.5: 6.2 µg/m³
28
Warrington, United Kingdom
10.3 km PM2.5: 6.7 µg/m³
29
Warrington, United Kingdom
10.3 km PM2.5: 7.0 µg/m³
29
Warrington, United Kingdom
10.3 km PM2.5: 7.0 µg/m³
27
Warrington, United Kingdom
10.3 km PM2.5: 6.5 µg/m³
11
Wigan Centre, United Kingdom
12.7 km PM2.5: 2.6 µg/m³
13
Wigan Centre, United Kingdom
12.7 km PM2.5: 3.1 µg/m³
27
Liverpool Speke, United Kingdom
13.7 km PM2.5: 6.5 µg/m³
27
Liverpool Speke, United Kingdom
13.7 km PM2.5: 6.5 µg/m³
28
Glazebury, United Kingdom
17.3 km PM2.5: 6.7 µg/m³

What cities are near St Helens?

32 Haydock 31 Prescot 32 Ashton in Makerfield 30 Huyton 42 Newton-le-Willows 30 Great Sankey 42 Golborne 31 Widnes 29 Belle Vale 26 Kirkby
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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 2026-09-05T19:29 UTC.