What is the air quality in Nakhon Si Thammarat?

Nakhon Si Thammarat, Thailand has an annual US AQI of 61 (Polluted) and average PM2.5 of 14.4 µg/m³, ranking #2227 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Nakhon Si Thammarat?

May is typically the cleanest month (AQI 56) and January the most polluted (AQI 71).

Where does Nakhon Si Thammarat's air quality data come from?

PM2.5: 1998–2026 (monitors 2021–2026, satellite 1998–2020; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Nakhon Si Thammarat, Thailand — Air Quality & Clean City Guide 2026

Nakhon Si Thammarat Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2227	Nakhon Si Thammarat, Thailand	Asia	AQI 61	PM2.5 14.4 µg/m³