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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

Modelled US AQI · 8 cities · CAMS via Open-Meteo

69.6Weekly mean modelled AQI · Moderate

Mean PM2.5: 18.6 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-16.9 AQI compared with the previous week’s mean of 86.5.

Highest hourly estimate: 152 in Hanoi · .

1344 of 1344 city-hours have a modelled AQI. These are estimates for roughly 45 km model grid cells, not monitoring-station measurements. How this report is made

Daily modelled US AQI

5010076Wed70Thu63Fri69Sat72Sun71Mon67Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 13 Mar75.6Moderate50–15220.2192 / 192
Thu, 14 Mar70.1Moderate52–12116.7192 / 192
Fri, 15 Mar63Moderate51–8316.4192 / 192
Sat, 16 Mar69.4Moderate52–10220.7192 / 192
Sun, 17 Mar72.2Moderate52–11119.1192 / 192
Mon, 18 Mar70.6Moderate47–13018.4192 / 192
Tue, 19 Mar66.6Moderate50–9418.4192 / 192

Hourly means (UTC+7)

Each cell averages the selected cities’ modelled AQI for that hour.

Day01234567891011121314151617181920212223
Wed787777767675757474747373737374767981828077747272
Thu727271717170706970707069696969717274757471676665
Fri656564646464646463636262626262616162636464636364
Sat646565666667676868686969707070717375757574727272
Sun727272727272727272727271717171717477787673707069
Mon696969696970697069696968686868727679797773706868
Tue686867676767666666666666666566666767686767676768

Cities by modelled US AQI

Sorted by weekly mean. Each city is a single model grid cell near its centre.

CityMean AQIPeak AQIMean PM2.5 (µg/m³)Hours
Hanoi95.3Moderate15230.8168 / 168
Hai Phong77.9Moderate11323168 / 168
Hue75.9Moderate13020.9168 / 168
Da Nang69.7Moderate10917.1168 / 168
Ho Chi Minh City62.8Moderate7515.5168 / 168
Can Tho61.1Moderate6815168 / 168
Nha Trang60.1Moderate6814.5168 / 168
Da Lat54.2Moderate6311.8168 / 168

City-hours by category

Good: 20

Moderate: 1265

Unhealthy for Sensitive Groups: 57

Unhealthy: 2

Very Unhealthy: 0

Hazardous: 0

US AQI scale
AQICategory
0–50Good
51–100Moderate
101–150Unhealthy for Sensitive Groups
151–200Unhealthy
201–300Very Unhealthy
301+Hazardous

How this report is made

Open-Meteo provides hourly estimates from the Copernicus Atmosphere Monitoring Service (CAMS) global model at roughly 45 km resolution. We use the grid cell nearest each city’s centre. Nearby places may share a cell, and local pollution can differ.

The AQI is the provider’s modelled US AQI across pollutants, one value per city per hour. Weekly, daily and hourly means average those values across the selected cities. PM2.5 is a concentration in µg/m³. These figures use a different basis from the measured PM2.5-derived AQI in the Malaysia and Singapore reports.

Days and hours use UTC+7. The report includes past model hours only, never forecasts. The previous-week comparison appears only when at least 90% of that week’s city-hours are available.

For official local readings and advice, visit Centre for Environmental Monitoring. Air-quality data: Open-Meteo and CAMS, licensed under CC BY 4.0. Haze Monitor is independent of these providers and local authorities.