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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

65.5Weekly mean modelled AQI · Moderate

Mean PM2.5: 18.2 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-1 AQI compared with the previous week’s mean of 66.5.

Highest hourly estimate: 126 in Ho Chi Minh City · .

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

5010065Wed62Thu67Fri70Sat68Sun67Mon60Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 22 Oct65.2Moderate41–10216.2192 / 192
Thu, 23 Oct62Moderate32–9216.6192 / 192
Fri, 24 Oct66.5Moderate35–9320.5192 / 192
Sat, 25 Oct70Moderate18–10720.1192 / 192
Sun, 26 Oct67.6Moderate14–11821.6192 / 192
Mon, 27 Oct67.4Moderate26–12616.8192 / 192
Tue, 28 Oct59.6Moderate19–10915.6192 / 192

Hourly means (UTC+7)

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

Day01234567891011121314151617181920212223
Wed646565656565666666666666666666656566666564646464
Thu636363626262616161606060606161616263656564636363
Fri636464646464646465656666676767686868696970707070
Sat707070707070707171717171717171707070707070696969
Sun686767666666666566666666676768686969696970707172
Mon727373737272717170696968676666656464646363626262
Tue626262626161606060606060595959595959595958575757

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
Ho Chi Minh City86.5Moderate12627.7168 / 168
Hanoi85.7Moderate10929.4168 / 168
Can Tho84.1Moderate10226.3168 / 168
Hai Phong77.6Moderate9124.5168 / 168
Hue55Moderate6912.3168 / 168
Da Nang53.6Moderate6711.2168 / 168
Nha Trang45.9Good718.5168 / 168
Da Lat35.4Good555.8168 / 168

City-hours by category

Good: 330

Moderate: 943

Unhealthy for Sensitive Groups: 71

Unhealthy: 0

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.