Air Quality in Vientiane Today — Live AQI, PM2.5 & PM10, Smog, Weather and Forecast

Latest air quality data: Vientiane

Locations: Vientiane

Pollution and air quality forecast for Vientiane. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Vientiane:

particulate matter (PM2.5) dust - 11 (Good)
particulate matter (PM10) suspended dust - 12 (Good)
ozone (O3) - 56 (Good)
nitrogen dioxide (NO2) - 6 (Good)
sulfur dioxide (SO2) - 8 (Good)
carbon monoxide (CO) - 219 (Good)

Real-time Air Quality Index (AQI) for Vientiane, Thursday, August 27, 2026: 1.

AQI 1 Good

What is the air quality in Vientiane today? Is the air polluted in Vientiane?. Is there smog?

Today (Thursday, August 27, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Vientiane.

What is the current level of PM2.5 in Vientiane? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 11 (Good) For comparison, the highest level of PM2.5 in Vientiane in the last 7 days was: 11 (Friday, August 21, 2026) and the lowest: 6 (Monday, August 24, 2026).

What is the level of PM10 today in Vientiane? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Vientiane is: 12 (Good)

How is the O3 level today in Vientiane? (ozone (O3))
56 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
6 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
8 (Good)

How high is the CO level? (carbon monoxide (CO))
219 (Good)

Current data Thursday, August 27, 2026 at 8:00 AM

PM2,5 11 (Good)

PM10 12 (Good)

O3 56 (Good)

NO2 6 (Good)

SO2 8 (Good)

CO 219 (Good)

Data on air pollution from recent days in Vientiane

index	2026-08-27	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20
pm25	8 Good	10 Good	8 Good	6 Good	7 Good	9 Good	11 Good	9 Good
pm10	9 Good	12 Good	9 Good	7 Good	8 Good	10 Good	11 Good	9 Good
o3	54 Good	53 Good	48 Good	44 Good	52 Good	47 Good	58 Good	51 Good
no2	7 Good	7 Good	5 Good	5 Good	4 Good	9 Good	11 Good	9 Good
so2	5 Good	5 Good	5 Good	6 Good	4 Good	6 Good	9 Good	8 Good
co	204 Good	186 Good	165 Good	141 Good	144 Good	173 Good	226 Good	259 Good

data source »

Vientiane

Thursday, August 27, 2026 at 8:00 AM

PM2,5 11 (Good)

particulate matter (PM2.5) dust

PM10 12 (Good)

particulate matter (PM10) suspended dust

O3 56 (Good)

ozone (O3)

NO2 6.2 (Good)

nitrogen dioxide (NO2)

SO2 8.2 (Good)

sulfur dioxide (SO2)

CO 219 (Good)

carbon monoxide (CO)

Vientiane

index	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26	2026-08-27
pm25	8.8	11	9.2	6.9	6	7.6	10	8.5
pm10	9.2	11	10	8.1	7	9.2	12	9
o3	51	58	47	52	44	48	53	54
no2	9.1	11	9.3	3.8	4.9	5	7.2	7.1
so2	7.9	8.8	6.3	3.7	5.7	5.5	5.4	5.5
co	259	226	173	144	141	165	186	204

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Vientiane

16-day weather forecast for Vientiane: today around 33°C (rain), lows near 27°C. Daily temperature and conditions, updated every day. Strong wind (about 22 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Vientiane

The UV index in Vientiane today is 6.1 (high) — unprotected fair skin can burn in about 35 minutes.

Frequently asked questions

Is the air safe to breathe in Vientiane today?

The current average PM2.5 across Vientiane is about 11 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Vientiane?

Right now PM2.5 in Vientiane averages about 11 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Vientiane?

Over the past week, the highest daily PM2.5 in Vientiane was recorded on Friday, August 21 (about 11 µg/m³).

What is the UV index in Vientiane today?

The UV index in Vientiane today is 6.1 (high) — unprotected fair skin can burn in about 35 minutes.

Does today's wind help disperse smog in Vientiane?

Strong wind (about 22 km/h) is actively clearing smog and dust away.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.