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· Vietnam · Wednesday to Tuesday, UTC+7

Vietnam weekly air quality

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

67.6Weekly mean modelled AQI · Moderate

Mean PM2.5: 16.6 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Vietnam’s official index.

+7.8 AQI compared with the previous week’s mean of 59.8.

Highest hourly estimate: 158 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

5010067Wed70Thu79Fri79Sat67Sun56Mon55Tue
DayMean AQILow–highMean PM2.5 (µg/m³)City-hours
Wed, 23 Oct67.4Moderate12–15816.3192 / 192
Thu, 24 Oct69.8Moderate29–11619.6192 / 192
Fri, 25 Oct79.2Moderate51–13419.7192 / 192
Sat, 26 Oct78.7Moderate49–13820.8192 / 192
Sun, 27 Oct67.4Moderate46–10313.8192 / 192
Mon, 28 Oct55.6Moderate20–11412192 / 192
Tue, 29 Oct55.2Moderate16–11114.3192 / 192

Hourly means (UTC+7)

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

Day01234567891011121314151617181920212223
Wed696867666563626162626465676869707173747473706968
Thu676666666665656666676767676767687280848076747373
Fri737373747474747474747475757576808590939290888786
Sat848381817979787879798080807979798079797675747475
Sun767777767473717069686766666564646463636262616159
Mon585757565554545353535353535355586162626058555353
Tue525252525252525252535354545558606262625957575757

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
Da Nang86.4Moderate13817.3168 / 168
Ho Chi Minh City82.7Moderate11626.8168 / 168
Hanoi77.6Moderate15821.6168 / 168
Hai Phong71.4Moderate9219.6168 / 168
Hue64.9Moderate11314.4168 / 168
Nha Trang59.7Moderate11013.4168 / 168
Can Tho58.6Moderate9212.8168 / 168
Da Lat39.8Good557.2168 / 168

City-hours by category

Good: 243

Moderate: 1021

Unhealthy for Sensitive Groups: 77

Unhealthy: 3

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.