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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

68.1Weekly mean modelled AQI · Moderate

Mean PM2.5: 18.7 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-7.3 AQI compared with the previous week’s mean of 75.4.

Highest hourly estimate: 174 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

5010076Wed81Thu66Fri68Sat66Sun55Mon65Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 19 Feb75.8Moderate27–15725.5192 / 192
Thu, 20 Feb80.8Moderate29–17421.6192 / 192
Fri, 21 Feb65.9Moderate29–13816192 / 192
Sat, 22 Feb68.2Moderate27–12522.3192 / 192
Sun, 23 Feb66.2Moderate25–13312.9192 / 192
Mon, 24 Feb54.8Moderate26–7314192 / 192
Tue, 25 Feb64.7Moderate33–10018.3192 / 192

Hourly means (UTC+7)

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

Day01234567891011121314151617181920212223
Wed686868697070717373757576777879808182828282818181
Thu808080797979797979787978797978808589919087827675
Fri747372727170696968676664646363636363626262626161
Sat616162626363646566676768697071727272737474747474
Sun747474747473727069686766656464636262616060595857
Mon565554535353525252525353545455555656575758585859
Tue596061616263646565656666666767676767676766666767

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
Hanoi107.8Unhealthy for Sensitive Groups16138.7168 / 168
Hai Phong87.2Moderate11827.7168 / 168
Ho Chi Minh City80.5Moderate17423.3168 / 168
Can Tho68.7Moderate9818.7168 / 168
Da Nang61Moderate6814.7168 / 168
Hue58.8Moderate6513.6168 / 168
Nha Trang48Good568.9168 / 168
Da Lat32.5Good413.6168 / 168

City-hours by category

Good: 261

Moderate: 962

Unhealthy for Sensitive Groups: 90

Unhealthy: 31

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.