What is the air quality trend in Singapore?

Over the past 8 days, Singapore had an average AQI of 188 based on station measurements. The worst day was 2026-10-15 with AQI 225.

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.

122

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 10 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-20	165	156–179	81.8 µg/m³	92.9	21h	11
2026-10-19	166	130–187	86.2 µg/m³	96.9	24h	11
2026-10-18	160	124–194	75.6 µg/m³	86.7	24h	9
2026-10-17	199	175–233	139.2 µg/m³	160.5	24h	9
2026-10-16	211	176–253	157.6 µg/m³	180.7	24h	8
2026-10-15	225	195–261	174.9 µg/m³	201.4	24h	9
2026-10-14	200	175–278	139.2 µg/m³	160.0	24h	9
2026-10-13	181	178–183	113.8 µg/m³	128.2	3h	8

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