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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

70.2Weekly mean modelled AQI · Moderate

Mean PM2.5: 20.1 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 78.3.

Highest hourly estimate: 182 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

5010069Wed78Thu73Fri65Sat74Sun69Mon65Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 8 Oct69.2Moderate51–14421.2192 / 192
Thu, 9 Oct77.9Moderate31–18226.5192 / 192
Fri, 10 Oct73Moderate32–17119.6192 / 192
Sat, 11 Oct64.6Moderate33–14717.4192 / 192
Sun, 12 Oct73.6Moderate36–14822.1192 / 192
Mon, 13 Oct68.7Moderate32–14217.4192 / 192
Tue, 14 Oct64.7Moderate40–10216.6192 / 192

Hourly means (UTC+7)

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

Day01234567891011121314151617181920212223
Wed737069696868686868696969696969696868686969717273
Thu747575767677777878787979797979797980798079797978
Fri777776767575747473737272727272727373737271717069
Sat696968686767666564636363636363636464646363626363
Sun646566676970727374757575757576777879797877777676
Mon757474727170696766666666666667687071716967666666
Tue666666666665656564646464646464646566666464646464

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
Hanoi128.7Unhealthy for Sensitive Groups18251.2168 / 168
Ho Chi Minh City82.3Moderate12025.2168 / 168
Can Tho81.4Moderate10926.7168 / 168
Hai Phong71.3Moderate9920168 / 168
Hue55.4Moderate6611.6168 / 168
Da Nang49.2Good838.4168 / 168
Nha Trang48.3Good789.2168 / 168
Da Lat45.2Good588.6168 / 168

City-hours by category

Good: 333

Moderate: 867

Unhealthy for Sensitive Groups: 100

Unhealthy: 44

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.