Chiang Mai Moderate
Chiang Mai, Chiang Mai
Updated: Nov 5, 2026, 3:00 AM
Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Current Weather
Pollutant Breakdown
Dominant pollutant: PM25
PM2.5 Forecast (next 7 days)
Health Guidance
Data from: Division of Air Quality Data, Air Quality and Noise Management Bureau, Pollution Control Department., World Air Quality Index Project
Is the air safe in Chiang Mai today?
The current Air Quality Index (AQI) in Chiang Mai is 67, which is classified as "Moderate". Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
The AQI scale runs from 0 to 500. Values of 0–50 are Good, 51–100 are Moderate, 101–150 are Unhealthy for Sensitive Groups, 151–200 are Unhealthy, 201–300 are Very Unhealthy, and 301–500 are Hazardous.
Air quality in Chiang Mai, Chiang Mai is monitored by local environmental agencies and reported through the World Air Quality Index project. Data is updated hourly and includes PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide.