What is the air quality trend in Johor Bahru?

Over the past 7 days, Johor Bahru had an average AQI of 187 based on station measurements. The worst day was 2026-10-15 with AQI 221.

How is Johor Bahru air quality measured?

Air quality in Johor Bahru 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 Johor Bahru, Malaysia

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

Historical PM2.5 and AQI trend from monitoring stations near Johor Bahru, Malaysia.

133

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 11 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	162	156–172	76.6 µg/m³	87.6	23h	12
2026-10-19	163	137–173	80.5 µg/m³	91.3	24h	12
2026-10-18	160	133–189	75.6 µg/m³	86.6	24h	10
2026-10-17	199	176–242	140.7 µg/m³	163.4	24h	10
2026-10-16	204	179–242	148.1 µg/m³	170.7	24h	9
2026-10-15	221	188–247	170.5 µg/m³	197.4	24h	10
2026-10-14	204	173–290	141.0 µg/m³	163.2	24h	10

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