30 Sep – 6 Oct 2026 · Malaysia

Kelantan weekly air quality

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

82.5Weekly mean AQI · Moderate

Official DOE API mean: 68.7. 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

324 eligible observations · 0 excluded.

+24.3 AQI compared with the previous week’s eligible mean of 58.2.

Peak AQI: 145 at Kota Bharu · 30 Sept 2026, 14:00 (UTC+8).

Daily US AQI (PM2.5)

Low 55High 145AQI

30 Sept6 Oct

6 OctDaily mean · Peak 10595.8Avg AQI

Based on 36 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
2026-09-30	110.4Unhealthy for Sensitive Groups	145	48 / 0
2026-10-01	93.5Moderate	132	48 / 0
2026-10-02	77Moderate	84	48 / 0
2026-10-03	65.6Moderate	86	48 / 0
2026-10-04	65.2Moderate	71	48 / 0
2026-10-05	73.4Moderate	91	48 / 0
2026-10-06	95.8Moderate	105	36 / 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
2026-09-30	91.5	93	95	98	101.5	103	105.5	108	110.5	113.5	116	119	121.5	120.5	120.5	119	117	115.5	113.5	112	112	113	115.5	115.5
2026-10-01	114	114	114	111	108	106.5	105.5	101.5	100	96.5	93.5	91	89	87.5	86.5	84.5	83.5	83	82.5	82.5	81	78.5	75.5	74.5
2026-10-02	74.5	74.5	74.5	76	77	76.5	76.5	77.5	79	80	80	79	78	78	77.5	78.5	77.5	77	75	74.5	74.5	76	77.5	79
2026-10-03	78.5	77	74	72	69.5	68.5	68	66.5	66	64.5	63.5	63.5	63	63	62	61	61.5	62.5	62.5	62.5	64	62.5	59.5	58
2026-10-04	57	59	59.5	60	60.5	61.5	62.5	62.5	63.5	64.5	64.5	66	66.5	66.5	67.5	69	68	70	70.5	71	69.5	69	69	68
2026-10-05	67.5	67.5	67.5	67.5	67.5	67.5	67.5	66.5	67.5	67.5	68	68.5	69.5	70.5	72.5	73.5	75	77	80	82	85.5	87	88.5	91
2026-10-06	94.5	96.5	99.5	101	99.5	99.5	98.5	98.5	97	97	95.5	95.5	94.5	92.5	92	91.5	91.5	89	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 280

Unhealthy for Sensitive Groups: 44

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

Stations by US AQI

Sorted by eligible mean AQI. Counts show the available coverage.

Location	Mean AQI	Peak AQI	Official DOE API mean	Eligible / excluded
Kota Bharu	87.2Moderate	145	71.7	162 / 0
Tanah Merah	77.8Moderate	99	65.7	162 / 0

Kelantan air quality.
Weekly state review.

30 Sep – 6 Oct 20267 days · 2 monitoring stations

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi negeri Kelantan

Across Kelantan, air quality for the week of 30 Sep – 6 Oct 2026 averaged an Air Pollutant Index (API) of 68.7 (Moderate).

State weekly average

68.7API

Moderate · Sederhana

Daily averages57 – 87.5 APIWed → Tue

Explore the week

State's peak reading: 131Kota BharuPeak reading across state
Cleanest area in state: 65.7Tanah MerahLowest weekly average
Good to Moderate air: 98%of all readings324 readings
National standing: #6of 16 states/territoriesNational avg: 83 API

Seven days of air quality in Kelantan

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 · 0–150 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, 30 Sep	87.5	67	131
Thu, 1 Oct	75.7	62	97
Fri, 2 Oct	65.2	61	70
Sat, 3 Oct	57.1	48	71
Sun, 4 Oct	57	50	61
Mon, 5 Oct	62.6	57	75
Tue, 6 Oct	77.8	70	83

Monitoring stations in Kelantan

Kedudukan stesen pemantauan di seluruh negeri mengikut purata mingguan

Scale 0 – 150

Tanah Merah65.7avg
Kelantan
48Moderate80
Kota Bharu71.7avg
Kelantan
52Moderate131

The week, hour by hour

Purata negeri bagi setiap jam sepanjang tujuh hari

Read each row from midnight to 11pm, in Malaysia Time. Hourly state averages show when air quality shifted during each day of the week.

0255075100125APIBrighter cells ran hazier than the rest of this week (51 – 104.5 API)

Haziest hour of the week: Wed at 14:00 MYT, averaging API 104.5 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	74.5	75.5	76.5	78	80	81	82.5	84	85.5	87	88.5	96.5	102.5	102.5	104.5	98	90.5	88.5	87.5	86.5	86.5	87	88.5	88.5
Thu	87.5	87.5	87.5	86	84.5	83.5	83	81	80	78	76.5	74.5	73.5	72.5	71.5	70.5	69.5	69.5	69	69	68	66	64	63.5
Fri	63.5	63.5	63.5	64.5	65	65	65	65.5	66.5	67	67	66.5	66	66	65.5	66	65.5	65	64	63.5	63.5	64.5	65.5	66.5
Sat	66	65	63	61.5	60	59.5	59	58	57.5	56.5	56	56	55.5	55.5	55	54	54.5	55	55	55	56	55	52	51
Sun	51	52.5	53	53.5	54	54.5	55	55	56	56.5	56.5	57.5	58	58	58.5	59.5	59	60	60.5	61	60	59.5	59.5	59
Mon	58.5	58.5	58.5	58.5	58.5	58.5	58.5	58	58.5	58.5	59	59.5	60	60.5	62	62.5	64	65	67	68.5	71	72	73	75
Tue	77	78.5	80	81	80	80	79.5	79.5	78.5	78.5	77.5	77.5	77	76	75.5	75	75	73.5	—	—	—	—	—	—

How readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik1%3
ModerateSederhana97%315
UnhealthyTidak Sihat2%6
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 324 hourly station readings.

Health guidelines

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