14 – 20 Oct 2026 · Malaysia

Kota Bharu weekly air quality

US AQI · PM2.5 · 24-hour source averages

84.4Weekly mean AQI · Moderate

Official DOE API mean: 69.9. Calculated separately from reported official observations.

Each DOE observation identified as PM2.5 is converted using the published API formula and US AQI breakpoints. This is not an official all-pollutant AQI or NowCast. Calculation details

168 eligible observations · 0 excluded.

-12.8 AQI compared with the previous week’s eligible mean of 97.2.

Peak AQI: 120 at Kota Bharu · 15 Oct 2026, 10:00 (UTC+8).

Daily US AQI (PM2.5)

Low 56High 120AQI

14 Oct20 Oct

20 OctDaily mean · Peak 8777.9Avg AQI

Based on 24 hourly readings.

Daily and hourly means use eligible observations across the selected locations. Each observation uses a 24-hour PM2.5 average.

Export AQI CSV

Means and peaks use only converted observations. Missing days remain gaps.

Day	Mean AQI	Peak AQI	Eligible / excluded
2026-10-14	85.5Moderate	101	24 / 0
2026-10-15	110.2Unhealthy for Sensitive Groups	120	24 / 0
2026-10-16	91.1Moderate	99	24 / 0
2026-10-17	85.6Moderate	90	24 / 0
2026-10-18	80.1Moderate	88	24 / 0
2026-10-19	60.3Moderate	67	24 / 0
2026-10-20	77.9Moderate	87	24 / 0

Hourly means (UTC+8)

Day	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23
2026-10-14	75	77	77	77	77	75	75	75	75	77	78	80	83	87	90	91	93	96	96	97	99	101	101	101
2026-10-15	97	99	103	105	109	111	113	115	117	118	120	120	118	118	115	115	115	111	111	107	105	103	101	99
2026-10-16	99	99	97	96	96	99	97	96	96	96	94	93	90	90	88	86	83	84	84	83	83	84	86	87
2026-10-17	90	88	87	86	84	84	83	83	84	83	81	84	88	86	86	86	86	86	84	86	86	87	88	88
2026-10-18	87	87	88	88	87	86	84	84	84	83	81	80	77	78	78	80	78	78	77	77	75	72	68	65
2026-10-19	64	62	59	58	58	58	58	58	56	57	58	59	58	58	58	58	59	62	62	64	65	65	67	67
2026-10-20	67	68	68	70	72	74	74	75	77	75	75	75	77	78	81	83	84	84	86	86	84	84	86	87

Observation categories

Good: 0

Moderate: 144

Unhealthy for Sensitive Groups: 24

Unhealthy: 0

Very Unhealthy: 0

Hazardous: 0

US AQI scale
AQI	Category
0–50	Good
51–100	Moderate
101–150	Unhealthy for Sensitive Groups
151–200	Unhealthy
201–300	Very Unhealthy
301+	Hazardous

Kota Bharu air quality.
Weekly station review.

14 – 20 Oct 20267 days · Kelantan

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen Kota Bharu, Kelantan

During the week of 14 – 20 Oct 2026, air quality at Kota Bharu averaged an Air Pollutant Index (API) of 69.9 (Moderate). Readings peaked at 91.

Station weekly average

69.9API

Moderate · Sederhana

Daily averages53.6 – 85.7 APIWed → Tue

Explore the week

Week's peak reading: 91ModeratePeak during 7-day window
Rank in Kelantan: #2of 2 stationsState avg: 68.5 API
Good to Moderate air: 100%of hourly readings168 readings recorded
National standing: #16of 68 stationsNational avg: 108.7 API

Seven days of station air quality

Pergerakan purata harian dan julat bacaan sepanjang minggu

Archived API · Malaysia TimePoint, tap or use ← → to inspect

National averageStation peakMin–max rangeAPI bands7 of 7 points · 0–100 API

The average follows all available readings each day. The range spans the lowest and highest station readings; a national average can hide local peaks.

View chart data as a table

Archived national API, daily
Date / time	Average	Minimum	Peak
Wed, 14 Oct	70.9	64	81
Thu, 15 Oct	85.7	79	91
Fri, 16 Oct	74.7	69	80
Sat, 17 Oct	71	68	74
Sun, 18 Oct	67.3	57	73
Mon, 19 Oct	53.6	50	58
Tue, 20 Oct	65.8	58	72

The week, hour by hour

Bacaan setiap jam dari tengah malam hingga 11 malam

Read each row from midnight to 11pm, in Malaysia Time. Hourly air quality at Kota Bharu shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100APIBrighter cells ran hazier than the rest of this week (50 – 91 API)

Haziest hour of the week: Thu at 10:00 MYT, averaging API 91 nationwide.

View the hourly figures as a table

National average API by hour, Malaysia Time
Day	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	64	65	65	65	65	64	64	64	64	65	66	67	69	72	74	75	76	78	78	79	80	81	81	81
Thu	79	80	82	83	85	86	87	88	89	90	91	91	90	90	88	88	88	86	86	84	83	82	81	80
Fri	80	80	79	78	78	80	79	78	78	78	77	76	74	74	73	71	69	70	70	69	69	70	71	72
Sat	74	73	72	71	70	70	69	69	70	69	68	70	73	71	71	71	71	71	70	71	71	72	73	73
Sun	72	72	73	73	72	71	70	70	70	69	68	67	65	66	66	67	66	66	65	65	64	62	59	57
Mon	56	55	53	52	52	52	52	52	50	51	52	53	52	52	52	52	53	55	55	56	57	57	58	58
Tue	58	59	59	60	62	63	63	64	65	64	64	64	65	66	68	69	70	70	71	71	70	70	71	72

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik1%1
ModerateSederhana99%167
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 168 hourly station readings.

What it meant for this area

Panduan kesihatan mengikut kategori kualiti udara

Air quality is acceptable. People with asthma, heart or lung conditions should reduce prolonged or heavy outdoor exertion.

Kualiti udara sederhana. Pesakit asma, jantung atau paru-paru dinasihatkan mengurangkan aktiviti berat di luar bangunan.

Malaysia API scale · Skala IPU Malaysia
API	Category	Kategori
0–50	Good	Baik
51–100	Moderate	Sederhana
101–200	Unhealthy	Tidak Sihat
201–300	Very Unhealthy	Sangat Tidak Sihat
301+	Hazardous	Berbahaya

Nearby monitoring stations around Kota Bharu

Perbandingan purata mingguan dengan stesen berhampiran

Tanah Merah67.1 API
Moderate39 away
Besut70.9 API
Moderate54 away
Kuala Terengganu75.7 API
Moderate134 away

Day	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	64	65	65	65	65	64	64	64	64	65	66	67	69	72	74	75	76	78	78	79	80	81	81	81
Thu	79	80	82	83	85	86	87	88	89	90	91	91	90	90	88	88	88	86	86	84	83	82	81	80
Fri	80	80	79	78	78	80	79	78	78	78	77	76	74	74	73	71	69	70	70	69	69	70	71	72
Sat	74	73	72	71	70	70	69	69	70	69	68	70	73	71	71	71	71	71	70	71	71	72	73	73
Sun	72	72	73	73	72	71	70	70	70	69	68	67	65	66	66	67	66	66	65	65	64	62	59	57
Mon	56	55	53	52	52	52	52	52	50	51	52	53	52	52	52	52	53	55	55	56	57	57	58	58
Tue	58	59	59	60	62	63	63	64	65	64	64	64	65	66	68	69	70	70	71	71	70	70	71	72

Day	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Wed	64	65	65	65	65	64	64	64	64	65	66	67	69	72	74	75	76	78	78	79	80	81	81	81
Thu	79	80	82	83	85	86	87	88	89	90	91	91	90	90	88	88	88	86	86	84	83	82	81	80
Fri	80	80	79	78	78	80	79	78	78	78	77	76	74	74	73	71	69	70	70	69	69	70	71	72
Sat	74	73	72	71	70	70	69	69	70	69	68	70	73	71	71	71	71	71	70	71	71	72	73	73
Sun	72	72	73	73	72	71	70	70	70	69	68	67	65	66	66	67	66	66	65	65	64	62	59	57
Mon	56	55	53	52	52	52	52	52	50	51	52	53	52	52	52	52	53	55	55	56	57	57	58	58
Tue	58	59	59	60	62	63	63	64	65	64	64	64	65	66	68	69	70	70	71	71	70	70	71	72