Outdoor
Current values look suitable for ordinary outdoor activity for most people.
Why: Low AQI, low particle levels and mild outdoor conditions support this guidance.
London, United Kingdom
London air quality today
Current values look suitable for ordinary outdoor activity for most people.
Air quality status: FairUpdated (city local time): 18 Jul 2026, 10:00Data: Open-Meteo current data
Practical guidance
Running
Current values look suitable for an easy outdoor run.
Why: Low AQI, low particle levels and mild outdoor conditions support this guidance.
Ventilation
Current values support brief ventilation.
Why: Low AQI and low pollutant levels support brief ventilation.
Air quality and outdoor metrics
European AQI
Air Quality Index
26
Fair
PM2.5
Fine particulate matter
8.9µg/m³
Low
PM10
Coarse particulate matter
14.8µg/m³
Low
NO₂
Nitrogen dioxide
6µg/m³
Low
O₃
Ozone
65µg/m³
Moderate
UV index
Sun exposure level
4
Moderate
Pollen
Pollen availability
Moderate
Moderate
Temperature
Air temperature
19°C
Comfortable
Feels like
Apparent temperature
17°C
Comfortable
Wind
Wind speed
10km/h
Light
Humidity
Relative humidity
53%
Comfortable
Data source and license
Air quality and weather data provided by Open-Meteo. Air quality forecasts are based on CAMS air quality data. Values are general estimates and may not reflect street-level conditions.
Open-Meteo · Updated (city local time): 18 Jul 2026, 10:00
Disclaimer
This information is a general estimate only and is not medical advice.
Location
London, United Kingdom
Coordinates: 51.5074, -0.1278 · Europe/London
City air quality FAQ
How should I read the AQI for London?
European AQI condenses air quality into one value. On this page, it helps you quickly judge whether conditions look good, moderate or more polluted than usual.
Is the air quality good for going outside?
Check the outdoor and running cards first. They combine AQI, particles, ozone, weather and other factors that can affect outdoor comfort.
Should I ventilate right now?
The ventilation card considers AQI and pollutants such as particles, nitrogen dioxide and ozone. If values are elevated, a shorter opening or a later moment may be better.
Why can air quality change during the day?
Weather, emissions, ozone formation, particles and air flow can shift local conditions, so the next hours can differ from the current reading.
Interpret AQI for outdoor activity
Calculic's European AQI calculator assesses the value using your population group and planned activity intensity.
Interpret AQI in CalculicThis page's European AQI value, city and timestamp are passed to the calculator through the link.