What is the air quality trend in Kota Bharu?

Over the past 7 days, Kota Bharu had an average AQI of 93 based on station measurements. The worst day was 2026-10-14 with AQI 117.

How is Kota Bharu air quality measured?

Air quality in Kota Bharu 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 Kota Bharu, Malaysia

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

Historical PM2.5 and AQI trend from monitoring stations near Kota Bharu, Malaysia.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 3 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	86	25–235	34.7 µg/m³	23.7	20h	3
2026-10-19	71	8–194	25.2 µg/m³	15.8	24h	4
2026-10-18	69	35–126	20.9 µg/m³	10.8	24h	4
2026-10-17	97	52–275	42.5 µg/m³	22.5	24h	4
2026-10-16	108	58–175	39.9 µg/m³	39.0	24h	4
2026-10-15	105	59–323	44.6 µg/m³	46.5	24h	4
2026-10-14	117	75–213	46.3 µg/m³	51.1	24h	4

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