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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

73.5Weekly mean modelled AQI · Moderate

Mean PM2.5: 20.5 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

+2.4 AQI compared with the previous week’s mean of 71.1.

Highest hourly estimate: 183 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

5010068Wed75Thu75Fri79Sat74Sun73Mon70Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 18 Feb67.5Moderate36–13121.1192 / 192
Thu, 19 Feb74.8Moderate34–15622.2192 / 192
Fri, 20 Feb75.1Moderate35–15619.6192 / 192
Sat, 21 Feb79.4Moderate41–18322192 / 192
Sun, 22 Feb74.3Moderate54–12720192 / 192
Mon, 23 Feb72.9Moderate56–11019.9192 / 192
Tue, 24 Feb70.1Moderate54–10218.8192 / 192

Hourly means (UTC+7)

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

Day01234567891011121314151617181920212223
Wed656565656565656565666667676868696970707171727273
Thu737474757576767676767575747474747474757575757575
Fri757474747473737372727272727272737784878683787270
Sat69696970707172737475757676777778869610210198928378
Sun757574747474737372727171717070737882858379747171
Mon717171727171717171717172727272727579818178747171
Tue717070717171717170707069696968687173757471686868

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
Hanoi111.7Unhealthy for Sensitive Groups15639.3168 / 168
Hai Phong85.5Moderate11827168 / 168
Can Tho79.3Moderate14123.4168 / 168
Ho Chi Minh City75.8Moderate18320.2168 / 168
Hue66.8Moderate12715.8168 / 168
Da Nang60.8Moderate7513.9168 / 168
Nha Trang57.2Moderate6513.2168 / 168
Da Lat50.6Moderate8311.4168 / 168

City-hours by category

Good: 85

Moderate: 1075

Unhealthy for Sensitive Groups: 160

Unhealthy: 24

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.