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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

67.9Weekly mean modelled AQI · Moderate

Mean PM2.5: 18.9 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

-15.4 AQI compared with the previous week’s mean of 83.3.

Highest hourly estimate: 160 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

5010082Wed71Thu64Fri66Sat65Sun64Mon64Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 29 Nov81.7Moderate21–16024.1192 / 192
Thu, 30 Nov70.7Moderate15–16018.9192 / 192
Fri, 1 Dec63.6Moderate18–15019.1192 / 192
Sat, 2 Dec66Moderate18–10517.7192 / 192
Sun, 3 Dec65.1Moderate21–11617.6192 / 192
Mon, 4 Dec64Moderate16–12316.9192 / 192
Tue, 5 Dec64.3Moderate27–11318.5192 / 192

Hourly means (UTC+7)

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

Day01234567891011121314151617181920212223
Wed888785858483838282838383828281818180807978787776
Thu757473737372727171717171707070707070706969686867
Fri676665656463636261616060616161626365666767666666
Sat666666666767676666666666666767676766666665656565
Sun656565656565666666666666666665656565656564646464
Mon646463636363626262626262626262626367707070686663
Tue636363636363636464646464656565656565656666666666

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
Hanoi113.5Unhealthy for Sensitive Groups16041.9168 / 168
Hai Phong86.9Moderate12927.1168 / 168
Ho Chi Minh City82.5Moderate10326.2168 / 168
Can Tho68.4Moderate12317.1168 / 168
Da Nang62.6Moderate8314.7168 / 168
Hue60.1Moderate8513168 / 168
Nha Trang45.8Good538.3168 / 168
Da Lat23.4Good313.2168 / 168

City-hours by category

Good: 313

Moderate: 910

Unhealthy for Sensitive Groups: 73

Unhealthy: 48

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.