Air quality in Chiang Mai

Air quality index (AQI) and PM2.5 air pollution in Chiang Mai

LAST UPDATE (local time)

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Weather

What is the current weather in Chiang Mai?

WeatherBroken clouds
Temperature86°C
Humidity66%
Wind5.8 mp/h
Pressure1010 mb
Air pollution has cost an estimated1,500 deaths*in Chiang Mai in 2020LEARN MORE*Air pollution also cost approximately $580,000,000 USD in Chiang Mai in 2020.

live aqi city ranking

Real-time Thailand city ranking

#cityUS AQI
1Nong Chok

76

2Phra Samut Chedi

74

3Surat Thani

72

4Bang Bon

68

5Bangkok Yai

63

6Ban Talat Bueng

61

7Yala

61

8Mueang

59

9Khlong San

57

10Lat Krabang

57

(local time)

SEE WORLD AQI RANKING

live Chiang Mai aqi ranking

Real-time Chiang Mai air quality ranking

#stationUS AQI
1Unity Concord International School

65

2Khuang Pao Early Childhood Development Center

63

3City Hall, Chiangmai

57

4Chang Phueak, Mueang

50

5Si Phum, Mueang

29

6Serene Lake

28

7Sansiri - d'Vieng Santitham

26

8Yupparaj Wittayalai School

25

9Dr. First's

22

10San Phi Suea

21

(local time)

SEE WORLD AQI RANKING

Chiang Mai webcam

4:06, Sep 26

Is there air pollution in Chiang Mai?

US AQI

14

live AQI index
Good

Overview

What is the current air quality in Chiang Mai?

Air pollution levelAir quality indexMain pollutant
Good14 US AQItrendPM2.5
PollutantsConcentration
PM2.5
3.5 µg/m³trend

Health Recommendations

How to protect from air pollution in Chiang Mai?

Open your windows to bring clean, fresh air indoors
Enjoy outdoor activities

Forecast

Chiang Mai air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Thursday, Sep 24

Good14 US AQI

Friday, Sep 25

Good16 US AQI

Today

Good17 US AQI

Sunday, Sep 27

Good30 US AQI

face icon
weather icon89.6°73.4°

2.2 mp/h

Monday, Sep 28

Good42 US AQI

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weather icon91.4°73.4°

0 mp/h

Tuesday, Sep 29

Moderate54 US AQI

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weather icon91.4°73.4°

2.2 mp/h

Wednesday, Sep 30

Moderate64 US AQI

face icon
weather icon89.6°73.4°

0 mp/h

Thursday, Oct 1

Moderate86 US AQI

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weather icon84.2°73.4°

2.2 mp/h

Friday, Oct 2

Moderate81 US AQI

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weather icon87.8°71.6°

4.5 mp/h

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Historical

Historic air quality graph for Chiang Mai

How to best protect from air pollution?

Reduce your air pollution exposure in Chiang Mai

AIR QUALITY ANALYSIS AND STATISTICS FOR Chiang Mai

How polluted is Chiang Mai air?

Chiang Mai’s air quality is moderately polluted and gets worse during the hazy season that typically runs from January to April. The city’s annual average PM2.5 concentration rose from 22.7 micrograms per cubic meter (µg/m³) in 2017 to 24.5 µg/m³ in 2018. Both figures are more than twice the World Health Organisation’s recommended annual guideline, and only marginally better than Bangkok air quality, which had a PM2.5 annual average of 25.2 µg/m³ in 2018.

Chiang Mai’s air quality is set to worsen again in 2019: from January to early November, PM2.5 concentration levels were on average 33.9 µg/m³. Notably, monthly average PM2.5 concentrations in March and April 2019 exceeded those of 2018, indicating a more severe haze season.

When is Chiang Mai’s air pollution at its worst?

Air pollution in Chiang Mai is usually at its worst from February to April, which is towards the end of the dry season. In 2018, PM2.5 concentrations in March were almost treble January levels and were “Unhealthy” according to the U.S. Air Quality Index (AQI). During the haze season, passenger planes are occasionally unable to land in Chiang Mai because of the poor visibility.

What are the causes of air pollution in Chiang Mai?

During the dry season, the haze in Chiang Mai is usually caused by regional forest fires, farmers burning land to clear it for the next harvest, and smog from Laos and Myanmar.

Despite government measures outlawing open burning, Chiang Mai’s haze season, also known as the “burning season,” continues each year.

In recent years, the smog in Thailand’s largest northern city has become worse due to industrialization and an increase in the number of vehicles on the roads.

Located in the northern region of Thailand, Chiang Mai is especially vulnerable to air pollution as it is surrounded by mountain ranges that trap pollution.

How can air pollution in Chiang Mai be reduced?

Authorities in the past have sprayed water in the air during the haze season to try to reduce the amount of dust, but this doesn’t get to the heart of the problem. There is an urgent need to reduce emissions from factories and vehicles, as well as smoke from agriculture burning.

Individuals can take steps in their daily life to reduce personal emissions by carpooling or taking public transport, actively switching to greener fuel alternatives, and more.

If you would like to contribute to the clean air cause, we warmly invite you to join the AirVisual community!

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