Air Quality in Chiang Mai, Thailand

Overcast
22.8°C · 93.3% humidity
22.8°
Feels 22.8°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
42 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
20 9pm
18
10
52 12am
41
31
24 3am
20
17
15 6am
15
14
13 9am
11
11
11 12pm
11
10
10 3pm
10
11
13 6pm
13
13
Station readings
20
18
10
CAMS model adj -14
34
27
27
27
27
25
24
24
24
24
25
25
25
24
24
24
24
24
24
24
25
27
27
27
AD 728×90

Air Quality Index Trend

47h · 3 stn

Chiang Mai's air quality is heavily impacted by agricultural burning and forest fires across northern Thailand and neighboring countries. The burning season from February to April regularly pushes AQI levels into the unhealthy range.

93.3%
Humidity
6.1 km/h
Wind W
1005.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
52
12.85 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Chiang Mai?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.512.85 µg/m³ ✓ WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (42 stations within 25 km)
12.85
Median
5.75
Average
1.0
Low
16.0
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -6.3

What is the 7-day forecast for Chiang Mai?

07-21
26.7° 22.8°
18.5 mm
07-22
30.8° 22.3°
2.25 mm
07-23
26.0° 21.7°
2.56 mm
07-24
29.9° 23.1°
7.87 mm
07-25
26.6° 22.6°
8.88 mm
07-26
31.3° 23.1°
10.63 mm
07-27
24.9° 23.7°
8.63 mm
Both models agree Avg diff: 2.8°C

Where are air quality stations near Chiang Mai?

50
จุดบริการตำรวจท่องเทียว ต.ศรีภูมิ อ.เมืองเชียงใหม่ จ.เชียงใหม่
0.3 km 27.7°C 81.9% RH PM2.5: 12.0 µg/m³ PM10: 13.0 µg/m³
10
thailand-chiang-mai-sinharat-road-soi-2
0.5 km PM2.5: 2.3 µg/m³ PM10: 2.3 µg/m³
55
Yupparaj Wittayalai School, Chiangmai, Thailand (โรงเรียนยุพราชวิทยาลัย)
0.6 km PM2.5: 14.0 µg/m³
61
Yupparaj Wittayalai School, Chiangmai, Thailand (โรงเรียนยุพราชวิทยาลัย)
0.6 km PM2.5: 16.9 µg/m³
70
Yupparaj Wittayalai School, Chiangmai, Thailand (โรงเรียนยุพราชวิทยาลัย)
0.6 km PM2.5: 21.1 µg/m³
52
Yupparaj Wittayalai School, Chiangmai, Thailand (โรงเรียนยุพราชวิทยาลัย)
0.6 km PM2.5: 12.6 µg/m³
9
Chiang Mai
0.9 km PM2.5: 2.2 µg/m³
50
Chiang Mai
0.9 km PM2.5: 12.0 µg/m³
85
Bear Hug Cafe‚ ต.ช้างคลาน อ.เมือง จ.เชียงใหม่
1.2 km PM2.5: 28.3 µg/m³
68
ศูนย์พัฒนาการจัดสวัสดิการสังคมผู้สูงอายุบ้านธรรมปกรณ์ (เชียงใหม่) เลขที่ 1 ถ.มูลเมือง อ.เมือง จ.เชียงใหม่
1.2 km 32.6°C 60.2% RH PM2.5: 20.0 µg/m³ PM10: 22.0 µg/m³

What cities are near Chiang Mai?

54 Hang Dong 8 San Kamphaeng 30 San Pa Tong 19 Lamphun 28 Pa Sang 30 Lampang 8 Phayao 8 Dok Kham Tai 23 Thoen 20 Phrae
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:25 UTC.