What is the air quality in Leicester?

Leicester, United Kingdom has an annual US AQI of 53 (Reasonable) and average PM2.5 of 11.5 µg/m³, ranking #1140 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Leicester?

July is typically the cleanest month (AQI 45) and March the most polluted (AQI 62).

Where does Leicester's air quality data come from?

PM2.5: 1998–2026 (monitors 2008–2026, satellite 1998–2010, 2012–2013; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Leicester, United Kingdom — Air Quality & Clean City Guide 2026

Leicester Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1140	Leicester, United Kingdom	Europe	AQI 53	PM2.5 11.5 µg/m³