What is the air quality trend in Singapore?

Over the past 3 days, Singapore had an average AQI of 166 based on station measurements. The worst day was 2026-10-18 with AQI 169.

How is Singapore air quality measured?

Air quality in Singapore is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Singapore, Singapore

Name: Singapore Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Singapore, Singapore.

130

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

48h

PM2.5 Station

48h · 10 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-20	165	156–179	81.7 µg/m³	92.9	22h	11
2026-10-19	166	130–187	86.2 µg/m³	96.9	24h	11
2026-10-18	169	163–175	90.0 µg/m³	99.4	2h	9

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