Explore Vietnam

Hanoi: next 24 hours

Hourly model forecast · Asia/Ho Chi Minh local time. Forecasts can change as the model updates.

Forecast US AQI and PM2.5, not observed readings
Local timeModelled US AQIPM2.5 (µg/m³)
5514
5514.5
5515
5515.9
5517.5
5617.2
5616.8
5515.9
5515.1
5414.4
5314
5313.4
5312.3
5311.4
5410.9
5510.6
5510.5
5610.7
5711.1
5712.3
5814.1
5813.9
5912.3
5911.5

Where these estimates come from

We show 8 selected cities in Vietnam, each at its own model grid cell. The list is not a nationwide monitoring network or national average. Open-Meteo provides the Copernicus Atmosphere Monitoring Service (CAMS) global model at roughly 45 km resolution. Nearby places may share a grid cell, and local pollution can differ.

The AQI is the provider’s modelled US AQI across pollutants. PM2.5 is a concentration in µg/m³. We do not convert a single hourly PM2.5 concentration into a daily AQI. These estimates use a different basis from the measured PM2.5-derived AQI on our Malaysia and Singapore pages.

“Valid for” is the time represented by the model, not the time a sensor took a measurement or a model run was issued. The app checks for new estimates every 15 minutes. Older estimates and saved responses are labelled; missing values remain unavailable.

For official local readings and activity advice, visit Centre for Environmental Monitoring. Vietnam’s national index may use different breakpoints and averaging periods.

Air-quality data: Open-Meteo and CAMS, licensed under CC BY 4.0. Haze Monitor is independent of these providers and local authorities.

Vietnam · Turtle Tower, Hoan Kiem Lake

Hanoi air quality

Modelled US Air Quality Index (AQI)

54

Modelled estimate · CAMS / Open-Meteo

Air qualityModerate
GoodHazardous

Modelled · All pollutants · About this estimate

Valid for 55 min ago
PM2.5 16.3 µg/m³Modelled concentration · roughly 45 km grid
CAMS via Open-Meteo ↗
About Hanoi air quality

These are model estimates, not measurements from a local monitoring station or the official national index. Each city represents a roughly 45 km model grid cell, not a country average. Local pollution can differ.

The Turtle Tower, Hoan Kiem Lake scene is an illustration, not a live camera view. Haze follows the modelled AQI and lighting follows the city’s local time.

Official local readings and advice ↗ · Sources and methodology

Next 24 hours

Model forecast

Hanoi · Local time

Low 53High 59US AQI
11:0010:00
9 Nov, 11:00 GMT+7Moderate55AQI

Forecasts can change. Missing hours remain unavailable.

Hourly AQI & PM2.5 details ↓