Air Quality Index (AQI) in Singapore 🇸🇬

Live Air Quality Index (AQI) and PM2.5 Levels in Singapore

Currently, the Air Quality Index (AQI) in Singapore, the capital of Singapore, is measured at a score of 155. According to the US EPA health standard, this air quality rating is categorized as Sensitive. The current atmosphere in Singapore is influenced by a PM2.5 (fine particulate matter) concentration of 60.5 µg/m³ and PM10 levels recorded at 61.7 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 69.6 µg/m³.

Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across Singapore based on industrial output, traffic density, and local weather patterns. Real-time pollution data and respiratory health alerts are also being actively monitored in cities like Singapore, Jurong Town, Woodlands, Punggol and Kampong Pasir Ris. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.

Air Quality Snapshot: Singapore Right Now

Across 8 monitored cities in Singapore, live air quality currently ranges from a low of 155 AQI in Singapore (the cleanest air right now) to a high of 177 AQI in Geylang (the most polluted). By US EPA health band, the nationwide distribution stands at 8 Unhealthy. The average fine-particulate (PM2.5) concentration across these cities is 77.8 µg/m³ — approximately 15.6 times the World Health Organization (WHO) annual air quality guideline of 5 µg/m³.

Singapore Air Quality: Major Cities Index

Geylang
4
Queenstown Estate
4

* Air Quality Index (AQI) data for Singapore is calculated using the US EPA standard. Information is processed from multiple monitoring stations detecting PM2.5, PM10, and gaseous pollutants to ensure accuracy for respiratory health planning.

What Today's Readings Mean in Singapore

The median reading across 8 monitored cities is 165.5 AQI. The national spread is 22 points, from 155 in Singapore to 177 in Geylang. Average PM2.5 is 77.8 µg/m³ (15.6× the WHO annual guideline).

At least one monitored location is Unhealthy. Reduce prolonged outdoor exertion and check the city reading before planning exercise or travel.

See the complete AQI and pollutant reference scales

Health & Scientific Resources

→ How to read US EPA Air Quality Index before going outside → Understanding Air Quality Index levels and what they mean → When haze forms and what it does to air quality

Air Quality in Singapore — FAQ

Common questions about AQI levels, pollutants, and data sources for Singapore.

What is the current air quality in Singapore?

Live AQI readings for 8 city(ies) across Singapore are listed above on the US EPA 0-500 scale.

Where does Singapore's AQI data come from?

Real-time readings come from ground-based monitoring stations operated by national environmental agencies in Singapore, delivered via WeatherAPI.com and aggregated using the EPA AQI formula.

What is a healthy AQI value in Singapore?

On the EPA scale used worldwide, 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 301-500 is Hazardous. The WHO 24-hour PM2.5 guideline is 15 μg/m³.

Why do AQI readings vary between cities in Singapore?

Air quality is highly local — major pollution sources (traffic, industry, dust, wildfires) cluster around cities, while wind direction and topography move them around. Comparing nearby readings on this page is the best way to see how conditions change across Singapore.