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Real-time Air Quality Index

Colombo AQI Today

65US AQI
Moderate

The current Air Quality Index in Colombo, Sri Lanka is 65, which is considered moderate. The fine particulate (PM2.5) concentration is 17 µg/m³.

Last updated · Source: CAMS forecast model

Pollutant levels in Colombo

PM2.517 µg/m³Fine particulate matter
PM1025.4 µg/m³Coarse particulate matter
O₃54 µg/m³Ozone
NO₂18.3 µg/m³Nitrogen dioxide
SO₂7.4 µg/m³Sulphur dioxide
CO528 µg/m³Carbon monoxide

Health advice

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged or heavy outdoor exertion.

7-day AQI trend

DayAQICategory
Aug 1658Moderate
Aug 1755Moderate
Aug 1855Moderate
Aug 1962Moderate
Aug 2051Moderate
Aug 2155Moderate
Aug 2264Moderate

About the Air Quality Index

The Air Quality Index (AQI) converts measured pollutant concentrations — including PM2.5, PM10, ozone (O₃), nitrogen dioxide (NO₂), sulphur dioxide (SO₂), and carbon monoxide (CO) — into a single 0–500 scale. Higher values mean greater health risk. The reading for Colombo reflects a CAMS forecast model and updates throughout the day. Learn what the AQI number means for your body, read the AQI scale reference, or compare PM2.5 and PM10.

Frequently asked questions about Colombo air quality

What is the AQI in Colombo today?

The current Air Quality Index in Colombo, Sri Lanka is 65 on the 0–500 US AQI scale, which is categorised as moderate. The reading comes from a CAMS forecast model and refreshes throughout the day.

What is the PM2.5 level in Colombo right now?

Fine particulate matter (PM2.5) in Colombo, Sri Lanka is currently 17 µg/m³. The World Health Organization recommends keeping the 24-hour average below 15 µg/m³, so Colombo is currently above the WHO guideline.

Is it safe to go outside in Colombo today?

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged or heavy outdoor exertion.

What is considered a good AQI level?

An AQI of 0–50 is good, 51–100 is moderate, 101–150 is unhealthy for sensitive groups, 151–200 is unhealthy, 201–300 is very unhealthy, and anything above 300 is hazardous. The scale is the same everywhere, so readings are directly comparable between cities.

How often is the Colombo air quality data updated?

Air quality readings for Colombo, Sri Lanka refresh throughout the day, and this page is rendered fresh on every visit, so the AQI, pollutant breakdown and 7-day trend always reflect the latest available model output.

Air quality near Colombo

Compare Colombo with the closest monitored cities — pollution is regional, so neighbouring readings often move together.

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