What is the air quality in Calais?

Calais, France has an annual US AQI of 54 (Reasonable) and average PM2.5 of 12 µg/m³, ranking #1270 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Calais?

July is typically the cleanest month (AQI 49) and March the most polluted (AQI 65).

Where does Calais's air quality data come from?

PM2.5: 1998–2026 (monitors 2002–2007, 2011–2026, satellite 1998–2001, 2008–2010; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Calais, France — Air Quality & Clean City Guide 2026

Calais Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1270	Calais, France	Europe	AQI 54	PM2.5 12 µg/m³