Air Quality in Siem Reap, Cambodia
Rain
27.5°C · 81.0% humidity
27.5°
Feels 33.2°
47
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Siem Reap's air quality — share it
AQI Forecast
Calibrated
51
6pm
51
51
47
9pm
51
51
51
12am
51
51
51
3am
50
50
50
6am
50
50
50
9am
50
50
50
12pm
50
50
50
3pm
50
50
Station readings
51
51
CAMS model
adj +26
25
25
25
25
25
25
25
25
25
25
24
24
24
24
24
24
24
24
24
24
24
24
24
24
Air Quality Index Trend
46h · 1 stnSiem Reap's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. The worst conditions typically occur from February to April during the regional burning season.
81.0%
Humidity
62.7 km/h
Wind WSW
1007.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
11.33 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Siem Reap?
Temperature & Precipitation
PM2.5 Trend
46h · 1 stationPM2.511.33 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
11.33
Median
11.33
Average
11.33
Low
11.33
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -5.4
What is the 7-day forecast for Siem Reap?
09-05
28.4° 25.2°
9.81 mm
09-06
26.4° 24.5°
2.56 mm
09-07
31.3° 24.4°
2.5 mm
09-08
28.6° 25.7°
3.0 mm
09-09
28.2° 24.6°
8.25 mm
09-10
31.6° 26.0°
0.88 mm
09-11
29.6° 24.3°
1.38 mm
Both models agree
Avg diff: 1.9°C
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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 2026-09-05T14:04 UTC.