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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

68.6Weekly 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.

-1.2 AQI compared with the previous week’s mean of 69.8.

Highest hourly estimate: 163 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

5010066Wed61Thu68Fri70Sat73Sun73Mon68Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 10 Jan66.2Moderate41–10314.7192 / 192
Thu, 11 Jan61Moderate30–10517.6192 / 192
Fri, 12 Jan68.1Moderate33–11418.3192 / 192
Sat, 13 Jan70.4Moderate39–12020.5192 / 192
Sun, 14 Jan73.3Moderate34–16321.5192 / 192
Mon, 15 Jan73.4Moderate29–12319.5192 / 192
Tue, 16 Jan67.7Moderate25–10118.6192 / 192

Hourly means (UTC+7)

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

Day01234567891011121314151617181920212223
Wed727171717070706968686766666565646463636362616160
Thu606059595959595959595959606060616163656767656464
Fri656566666666676767676768686969707073767571676767
Sat676767676868686869696969707070707176787876737171
Sun717171717070707070707070707070707583868783787272
Mon737373737474747475757474747474737376787673706969
Tue696868686867676767676667666667676769717170696867

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
Ho Chi Minh City91.4Moderate16329.2168 / 168
Hanoi85.5Moderate10927.3168 / 168
Can Tho76.7Moderate14121.5168 / 168
Hai Phong76Moderate10321.4168 / 168
Da Nang66.9Moderate8717.9168 / 168
Hue58.4Moderate6513.3168 / 168
Nha Trang56.7Moderate6312.6168 / 168
Da Lat37.1Good496.1168 / 168

City-hours by category

Good: 168

Moderate: 1105

Unhealthy for Sensitive Groups: 69

Unhealthy: 2

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.