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Chiang Mai Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Chiang Mai

Last Updated: 2026-03-13 08:21:01 (Local Time)

location image
Live AQI
81AQI (US)
Air Quality is
Moderate
PM2.5 :  27 µg/m³
pm10 :  37 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Chiang Mai
patchy rain possible

22 °C

Patchy rain nearby
Humidity
Humidity63 %

Wind Speed
Wind Speed3.6 km/h

UV Index
UV Index0.7
Last Updated: 2026-03-13 08:21:01 (Local Time)
Rank833rd

Currently, Chiang Mai ranks 833rd among the cities with the highest AQI levels in the world.

Map

Chiang Mai

Major Air Pollutants

Chiang Mai

AQI Graph

Historical Air Quality Data

Chiang Mai

Chiang Mai
AQI (US)
.
12-03-2026Time13-03-2026
65
Min.at 4:01 PM, Mar 12, 2026
93
Max.at 12:01 AM

Download 2024 Annual Data

World Air Quality Report

Globe

AQI (US) Trends - Annual Air Quality Changes

Chiang Mai, Chiang Mai, Thailand

Chiang Mai's Locations

Real-time Air Pollution Level

Location
Status
AQI (US)
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
80
26
35
22
63
Moderate
80
26
36
20
64
Moderate
73
23
38
20
64
Moderate
78
25
38
20
64
Moderate
78
25
37
19
94
Moderate
78
25
38
22
63
Moderate
80
26
29
22
63
Moderate
78
25
31
22
63
Moderate
78
25
38
20
64
Moderate
75
24
33
20
64
Moderate
78
25
32
20
64
Moderate
73
23
37
20
64
Moderate
73
23
38
20
64
Moderate
80
26
42
20
64
Moderate
73
23
46
20
64
Moderate
73
23
38
20
64
Moderate
80
26
39
22
63
Moderate
80
26
30
20
64
Moderate
78
25
47
22
63
Moderate
80
26
34
20
64
Moderate
82
27
35
20
64
Moderate
75
24
27
22
63
Moderate
80
26
41
20
64
Moderate
84
28
31
22
63
Moderate
73
23
39
20
64
Moderate
78
25
43
20
64
Moderate
78
25
29
20
64
Moderate
78
25
30
20
64
Moderate
80
26
28
20
64
Moderate
75
24
28
20
64
Moderate
82
27
34
20
64
Moderate
78
25
39
20
64
Moderate
82
27
31
20
64
Moderate
78
25
30
20
64
Moderate
82
27
32
20
64
Moderate
78
25
27
20
64
Moderate
82
27
30
20
64
Moderate
78
25
39
20
64
Moderate
82
27
43
20
64
Moderate
78
25
42
20
64
Moderate
80
26
35
20
64
Moderate
75
24
38
20
64
Moderate
78
25
38
22
63
Moderate
75
24
40
22
63

Thailand's Metro Cities

Air Quality Index

Health Advice For People Living In

Chiang Mai

1.2Cigarettes per day

Cigarette
Weekly 8.4 Cigarettes
Monthly 36 Cigarettes

Breathing the air in this location is as harmful as smoking 1.2 cigarettes a day.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI (US)

  • Air Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust


Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Chiang Mai

  • asthma due to air pollution in Chiang MaiAsthma
  • heart due to air pollution in Chiang MaiHeart Issues
  • allergy due to air pollution in Chiang MaiAllergies
  • sinus due to air pollution in Chiang MaiSinus
  • flu due to air pollution in Chiang MaiCold/Flu
  • copd due to air pollution in Chiang MaiChronic (COPD)
asthma due to air pollution in Chiang Mai

Mild Chances of Asthma

Asthma

Risk of Asthma symptoms is Mild when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

  • Limit outdoor activities when AQI is poor.

  • Clean indoor air with an air purifier to reduce exposure.

  • Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

  • Exercise outdoors without a mask.

  • Stay in smoky areas with strong fumes.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2026

Thailand

Analyze the real-time most air polluted cities in the country.

Chiang Mai's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Chiang Mai
Mobile App

Empower Your Decisions with Reliable Data

Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.


Personalized health advice as per current AQI.

Personalized health advice as per current AQI.


Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.


Connect and control your air quality devices.

Connect and control your air quality devices.


Air Quality FAQs

at Chiang Mai

Frequently Asked Questions About Air Quality

What is the current AQI (US) level in Chiang Mai?

The current real-time AQI (US) level in Chiang Mai is 81 (Moderate) due to recent rainfall by 0.41mm/hr. This was last updated 2026-03-13 08:21:01 (Local Time).

When was the best AQI (US) level in Chiang Mai in the last 24 hours?

The best AQI (US) level was 65 (Moderate) at 4:01 PM, Mar 12, 2026 (Local Time) during the last 24 hours.

When was the worst AQI (US) level in Chiang Mai in the last 24 hours?

The worst AQI (US) level was 93 (Moderate) at 12:01 AM (Local Time) during the last 24 hours.

What is the current trend of AQI (US) levels in Chiang Mai during last 24 hours?

The AQI (US) levels in Chiang Mai have been fluctuating throughout the last 24 hours. The levels have increased by highest 93 at 12:01 AM (Local Time), lowest 65 at 4:01 PM, Mar 12, 2026 (Local Time).

What actions are recommended as per the current AQI (US) level in Chiang Mai?

Current AQI (US) levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.