Air Quality in Horley, United Kingdom
Windy
16.0°C · 58.9% humidity
16.0°
Feels 16.0°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Horley's air quality — share it
AQI Forecast
34
1am
54
54
35
4am
20
24
27
7am
29
30
24
10am
25
26
26
1pm
26
27
27
4pm
27
27
27
7pm
27
25
25
10pm
25
25
Air Quality Index Trend
47h · 11 stnHorley'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.
58.9%
Humidity
49.8 km/h
Wind ENE
1015.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
8.32 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Horley?
Temperature & Precipitation
PM2.5 Trend
47h · 11 stationsPM2.58.32 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for Horley?
07-22
25.4° 16.0°
07-23
20.8° 17.4°
0.13 mm
07-24
20.1° 15.1°
1.87 mm
07-25
29.3° 12.0°
0.5 mm
07-26
22.6° 14.0°
1.0 mm
07-27
27.6° 17.0°
1.31 mm
07-28
26.3° 17.1°
Both models agree
Avg diff: 3.0°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 2026-07-22T03:14 UTC.