Air Quality in Vientiane, Lao People's Democratic Republic
Drizzle
24.8°C · 85.1% humidity
24.8°
Feels 24.8°
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Vientiane's air quality — share it
AQI Forecast
Calibrated
54
12am
54
54
53
3am
51
50
49
6am
49
48
48
9am
48
47
47
12pm
45
45
45
3pm
45
45
45
6pm
45
54
74
9pm
74
74
Station readings
53
CAMS model
adj +20
34
34
34
27
27
27
27
27
27
27
27
27
27
25
25
25
25
25
25
25
34
54
54
54
Air Quality Index Trend
6h · 1 stnVientiane'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.
85.1%
Humidity
29.7 km/h
Wind W
1002.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
13.1 µg/m³
PM10
27.45 µg/m³
050100150200300500
What is the weather forecast for Vientiane?
Temperature & Precipitation
PM2.5 Trend
6h · 1 stationPM2.513.1 µg/m³
✓ WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
13.1
Median
13.1
Average
13.1
Low
13.1
High
PM2.5 µg/m³ · Model: 16.8 · Bias: +3.7
What is the 7-day forecast for Vientiane?
07-21
27.8° 24.1°
3.62 mm
07-22
32.7° 22.5°
2.94 mm
07-23
25.4° 24.3°
7.75 mm
07-24
29.9° 24.3°
10.5 mm
07-25
26.0° 23.5°
3.25 mm
07-26
31.3° 24.1°
10.94 mm
07-27
29.6° 25.2°
14.06 mm
Both models agree
Avg diff: 3.0°C
Where are air quality stations near Vientiane?
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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 2026-07-21T20:10 UTC.