Air Quality in Vientiane, Lao People's Democratic Republic
Rain
23.1°C · 99.1% humidity
23.1°
Feels 23.1°
70
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station
Nearby Monitoring Stations
Vientiane's air quality — share it
AQI Forecast
Calibrated
69
9pm
69
69
70
12am
69
69
49
3am
49
49
49
6am
42
42
42
9am
42
40
40
12pm
40
40
40
3pm
40
40
42
6pm
49
69
Station readings
65
62
62
CAMS model
adj +15
54
54
54
54
54
54
34
34
34
34
27
27
27
27
25
25
25
25
25
25
25
27
34
54
Air Quality Index Trend
10h · 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. Current PM2.5 concentration in Vientiane is 1.4× the WHO 24-hour guideline of 15 µg/m³.
99.1%
Humidity
8.5 km/h
Wind SSW
1005.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
21.1 µg/m³
PM10
27.4 µg/m³
050100150200300500
What is the weather forecast for Vientiane?
Temperature & Precipitation
PM2.5 Trend
10h · 1 stationPM2.521.1 µg/m³
×1.4 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
21.1
Median
21.1
Average
21.1
Low
21.1
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -7.6
What is the 7-day forecast for Vientiane?
06-08
24.6° 23.1°
11.19 mm
06-09
29.0° 25.0°
11.44 mm
06-10
28.5° 24.3°
24.06 mm
06-11
30.4° 23.7°
7.69 mm
06-12
28.7° 24.7°
6.69 mm
06-13
26.5° 23.8°
9.0 mm
06-14
30.1° 24.5°
17.5 mm
Both models agree
Avg diff: 2.5°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 2026-06-08T17:08 UTC.