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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

67Weekly mean modelled AQI · Moderate

Mean PM2.5: 18 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-0.9 AQI compared with the previous week’s mean of 67.9.

Highest hourly estimate: 149 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

5010067Wed64Thu76Fri72Sat64Sun63Mon64Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 6 Dec66.8Moderate26–13617.5192 / 192
Thu, 7 Dec63.5Moderate22–10719.9192 / 192
Fri, 8 Dec75.5Moderate23–14922192 / 192
Sat, 9 Dec71.9Moderate29–12819.1192 / 192
Sun, 10 Dec64Moderate36–10515.4192 / 192
Mon, 11 Dec63.3Moderate46–7916.5192 / 192
Tue, 12 Dec64Moderate36–8315.5192 / 192

Hourly means (UTC+7)

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

Day01234567891011121314151617181920212223
Wed676767676767676768686868686868686767676666656564
Thu636363626262626262626262626263636364656666666768
Fri697071727273747575767677787879797979797978767574
Sat747373727271717170707070707070707277807873716969
Sun686867676766666665646463636362626264646361616162
Mon626262626262636363636363636464646465666564646464
Tue646464646565656565656666656565646463636262626261

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
Hanoi102.4Unhealthy for Sensitive Groups14933.2168 / 168
Ho Chi Minh City77Moderate10322.5168 / 168
Can Tho70.9Moderate11519.5168 / 168
Hai Phong70.7Moderate8619.6168 / 168
Hue65.1Moderate9116.9168 / 168
Da Nang62.4Moderate8515.6168 / 168
Nha Trang51.6Moderate5910.4168 / 168
Da Lat35.9Good526.2168 / 168

City-hours by category

Good: 214

Moderate: 1047

Unhealthy for Sensitive Groups: 83

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.