What is the air quality trend in Mae Sai?

Over the past 6 days, Mae Sai had an average AQI of 72 based on station measurements. The worst day was 2026-05-22 with AQI 96.

How is Mae Sai air quality measured?

Air quality in Mae Sai is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Mae Sai, Thailand

Name: Mae Sai Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Mae Sai, Thailand.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

25h

PM2.5 Station

25h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-27	86	78–97	28.7 µg/m³	5h	1
2026-05-26	66	57–83	19.3 µg/m³	7h	1
2026-05-25	55	55–55	14.0 µg/m³	1h	1
2026-05-24	63	50–80	17.9 µg/m³	3h	1
2026-05-23	69	53–85	20.7 µg/m³	6h	1
2026-05-22	96	83–120	33.1 µg/m³	3h	1

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