Air Quality in Siem Reap, Cambodia
Rain
27.5°C · 81.0% humidity
27.5°
Feels 33.2°
59
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Siem Reap's air quality — share it
AQI Forecast
Calibrated
51
5pm
51
51
59
8pm
57
55
54
11pm
53
53
52
2am
52
51
50
5am
50
50
50
8am
50
50
50
11am
50
50
50
2pm
50
50
Station readings
75
51
51
CAMS model
adj +26
25
25
25
25
25
25
25
25
25
25
25
24
24
24
24
24
24
24
24
24
24
24
24
24
Air Quality Index Trend
47h · 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. Current PM2.5 concentration in Siem Reap is 1.1× the WHO 24-hour guideline of 15 µg/m³.
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▲
15.9 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Siem Reap?
Temperature & Precipitation
PM2.5 Trend
47h · 1 stationPM2.515.9 µg/m³
×1.1 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
15.9
Median
15.9
Average
15.9
Low
15.9
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -10.0
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
Where are air quality stations near Siem Reap?
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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 2026-09-05T13:17 UTC.