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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

71.1Weekly mean modelled AQI · Moderate

Mean PM2.5: 19 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-8.1 AQI compared with the previous week’s mean of 79.2.

Highest hourly estimate: 174 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

5010078Wed64Thu69Fri75Sat75Sun71Mon65Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 11 Feb78Moderate25–17417192 / 192
Thu, 12 Feb64.2Moderate26–14219.3192 / 192
Fri, 13 Feb69.3Moderate26–12818.5192 / 192
Sat, 14 Feb74.9Moderate32–15521.9192 / 192
Sun, 15 Feb75.4Moderate39–12821.1192 / 192
Mon, 16 Feb70.5Moderate41–13118.6192 / 192
Tue, 17 Feb65.3Moderate43–13016.9192 / 192

Hourly means (UTC+7)

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

Day01234567891011121314151617181920212223
Wed908989888786858381807978777675747372717069686766
Thu656463626160606060606161626364656769707170686869
Fri696969686968696869696969696969697174767470676766
Sat676767686869707071727273737373758189929187817675
Sun757474747474747473737373737373737583868682767372
Mon727373737272727171717171707070696970696969696969
Tue696868686767676666656564646464646464646464646465

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
Hanoi123.2Unhealthy for Sensitive Groups17443.8168 / 168
Hai Phong92.6Moderate15129168 / 168
Ho Chi Minh City76.3Moderate15519.9168 / 168
Can Tho67.8Moderate12315.8168 / 168
Da Nang60.7Moderate8514168 / 168
Hue59.8Moderate8513.6168 / 168
Nha Trang51.2Moderate5510.2168 / 168
Da Lat37Good476.1168 / 168

City-hours by category

Good: 211

Moderate: 926

Unhealthy for Sensitive Groups: 179

Unhealthy: 28

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.