What is the air quality in Cheltenham?

Cheltenham, United Kingdom has an annual US AQI of 52 (Reasonable) and average PM2.5 of 10.6 µg/m³, ranking #946 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Cheltenham?

July is typically the cleanest month (AQI 42) and March the most polluted (AQI 60).

Where does Cheltenham's air quality data come from?

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

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

Cheltenham Air Quality Data

Global rank	City	Continent	AQI	PM2.5
946	Cheltenham, United Kingdom	Europe	AQI 52	PM2.5 10.6 µg/m³