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Bangkokกรุงเทพมหานคร · 30 Sept, 05:00 GMT+758Modelled AQIChiang Maiเชียงใหม่ · 30 Sept, 05:00 GMT+750Modelled AQIChiang Raiเชียงราย · 30 Sept, 05:00 GMT+735Modelled AQIPhuketภูเก็ต · 30 Sept, 05:00 GMT+752Modelled AQIPattayaพัทยา · 30 Sept, 05:00 GMT+763Modelled AQIHat Yaiหาดใหญ่ · 30 Sept, 05:00 GMT+766Modelled AQIKhon Kaenขอนแก่น · 30 Sept, 05:00 GMT+754Modelled AQINakhon Ratchasimaนครราชสีมา · Korat · 30 Sept, 05:00 GMT+748Modelled AQI

Bangkok: next 24 hours

Hourly model forecast · Asia/Bangkok 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)
5917.8
6018.5
6120.1
6121.4
6221.4
6320.8
6419.6
6420.3
6521.1
6522.1
7721.5
8717.7
9014.4
8513.3
7412.7
6713.3
6714.3
6715.4
6716.9
6717.8
6718.4
6719.8
6722.9
6826.7

Where these estimates come from

For Bangkok, we request the model grid cell near 13.7563, 100.5018. 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 Pollution Control Department · Air4Thai. Thailand’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.

Thailand · Wat Arun and the Chao Phraya River

Bangkok air quality

Modelled US Air Quality Index (AQI)

58

Modelled estimate · CAMS / Open-Meteo

Air qualityModerate
GoodHazardous

Modelled · All pollutants · About this estimate

Valid for 44 min ago
PM2.5 17.8 µg/m³Modelled concentration · roughly 45 km grid
CAMS via Open-Meteo ↗
About Bangkok 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 Wat Arun and the Chao Phraya River 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

Bangkok · Local time

Low 59High 90US AQI
06:0005:00
30 Sept, 06:00 GMT+7Moderate59AQI

Forecasts can change. Missing hours remain unavailable.

Hourly AQI & PM2.5 details ↓

Thailand cities