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Bangkokกรุงเทพมหานคร · 30 Sept, 04:00 GMT+756Modelled AQIChiang Maiเชียงใหม่ · 30 Sept, 04:00 GMT+738Modelled AQIChiang Raiเชียงราย · 30 Sept, 04:00 GMT+730Modelled AQIPhuketภูเก็ต · 30 Sept, 04:00 GMT+750Modelled AQIPattayaพัทยา · 30 Sept, 04:00 GMT+760Modelled AQIHat Yaiหาดใหญ่ · 30 Sept, 04:00 GMT+763Modelled AQIKhon Kaenขอนแก่น · 30 Sept, 04:00 GMT+751Modelled AQINakhon Ratchasimaนครราชสีมา · Korat · 30 Sept, 04:00 GMT+744Modelled 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)
5713.2
5714.9
5815
5815.7
5913
5912.2
5912
5911.8
5911.7
5911.7
5911.6
5912.7
5912.5
5912.4
5910.1
586.7
586
576.5
567.5
568.2
558.4
548.6
548.3
548.4

Where these estimates come from

We show 8 selected cities in Thailand, 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 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)

56

Modelled estimate · CAMS / Open-Meteo

Air qualityModerate
GoodHazardous

Modelled · All pollutants · About this estimate

Valid for 52 min ago
PM2.5 12.4 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 54High 59US AQI
05:0004:00
30 Sept, 05:00 GMT+7Moderate57AQI

Forecasts can change. Missing hours remain unavailable.

Hourly AQI & PM2.5 details ↓

Thailand cities