What is the air quality in New Plymouth?

New Plymouth, New Zealand has an annual US AQI of 29 (Excellent) and average PM2.5 of 5.2 µg/m³, ranking #38 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in New Plymouth?

February is typically the cleanest month (AQI 27) and July the most polluted (AQI 32).

Where does New Plymouth's air quality data come from?

PM2.5: 1998–2026 (monitors 2016–2026, satellite 1998–2016, 2021–2024; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

New Plymouth, New Zealand — Air Quality & Clean City Guide 2026

New Plymouth Air Quality Data

Global rank	City	Continent	AQI	PM2.5
38	New Plymouth, New Zealand	Oceania	AQI 29	PM2.5 5.2 µg/m³