Air Quality in Vientiane, Lao People's Democratic Republic
Rain
26.5°C · 86.6% humidity
26.5°
Feels 26.5°
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations
Nearby Monitoring Stations
Vientiane's air quality — share it
AQI Forecast
Calibrated
84
11pm
84
84
55
2am
43
49
73
5am
76
59
60
8am
61
55
56
11am
63
63
63
2pm
64
64
64
5pm
64
84
96
8pm
96
113
Station readings
21h ago
AQI 67
PM2.5 19.7 µg/m³ · 21h ago
CAMS model
adj +30
54
54
54
54
34
34
54
54
34
34
34
27
27
34
34
34
34
34
34
34
54
66
66
83
Air Quality Index Trend
5h · 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 2.8× the WHO annual guideline of 5 µg/m³.
86.6%
Humidity
10.0 km/h
Wind WSW
1004.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
13.95 µg/m³
PM10
27.4 µg/m³
050100150200300500
What is the weather forecast for Vientiane?
Temperature & Precipitation
PM2.5 Trend
5h · 1 stationPM2.513.95 µg/m³
✓ WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
13.95
Median
13.95
Average
9.6
Low
18.3
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +2.4
What is the 7-day forecast for Vientiane?
05-28
33.0° 26.5°
4.75 mm
05-29
34.6° 24.6°
10.5 mm
05-30
36.3° 25.3°
7.94 mm
05-31
29.1° 24.9°
17.06 mm
06-01
29.0° 24.5°
13.12 mm
06-02
31.6° 24.6°
16.37 mm
06-03
35.7° 23.9°
3.56 mm
Both models agree
Avg diff: 2.2°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 2026-05-28T19:00 UTC.