Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Horley
Air quality index (AQI) and PM2.5 air pollution in Horley
4K people follow this city
Horley Air Quality Map
Real-time Horley air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Horley today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Horley?
| Weather | Clear sky |
| Temperature | 48.2°F |
| Humidity | 68% |
| Wind | 8.1 mp/h |
| Pressure | 29.6 Hg |
live aqi city ranking
Real-time United Kingdom city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Cardiff, Wales | 50 |
| 2 | Reading, England | 46 |
| 3 | Edgware, England | 45 |
| 4 | Greenhill, England | 45 |
| 5 | Leicester, England | 43 |
| 6 | Brentford, England | 41 |
| 7 | Earlsfield, England | 41 |
| 8 | Harlington, England | 41 |
| 9 | Iver, England | 41 |
| 10 | London, England | 41 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
32*
live AQI index
Good
Overview
What is the current air quality in Horley?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 32* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 7.7*µg/m³ | |
| NO2 | 41.3*µg/m³ | |
!
PM2.5
x1.5
PM2.5 concentration in Horley is currently 1.5 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Horley?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Horley air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 32 AQI US |  80% | 50° 35.6° |  11.2 mp/h |
| Friday, Apr 26 | Good 24 AQI US |  | 50° 39.2° | 11.2 mp/h |
| Saturday, Apr 27 | Good 35 AQI US | 100% | 55.4° 42.8° | 11.2 mp/h |
| Sunday, Apr 28 | Good 16 AQI US | 100% | 53.6° 42.8° | 20.1 mp/h |
| Monday, Apr 29 | Good 10 AQI US | | 53.6° 41° | 11.2 mp/h |
| Tuesday, Apr 30 | Good 46 AQI US | 70% | 55.4° 42.8° | 8.9 mp/h |
| Wednesday, May 1 | Moderate 57 AQI US  | 90% | 60.8° 50° | 4.5 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Where is the cleanest air quality in Horley?
No locations are available.
AQI US, Metric