14 – 20 Oct 2026 · Malaysia

Kelantan weekly air quality

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

82.3Weekly mean AQI · Moderate

Official DOE API mean: 68.5. 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

336 eligible observations · 0 excluded.

-11.5 AQI compared with the previous week’s eligible mean of 93.8.

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 8775.4Avg AQI

Based on 48 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	80.6Moderate	101	48 / 0
2026-10-15	107.3Unhealthy for Sensitive Groups	120	48 / 0
2026-10-16	93.5Moderate	107	48 / 0
2026-10-17	82.7Moderate	90	48 / 0
2026-10-18	76.3Moderate	88	48 / 0
2026-10-19	60.7Moderate	72	48 / 0
2026-10-20	75.4Moderate	87	48 / 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	70	72	72	72	72.5	71.5	71.5	72.5	72.5	73.5	74.5	76	78.5	81	83.5	84.5	87	89.5	90	91.5	93	94.5	94.5	95.5
2026-10-15	94	95	98	99.5	102.5	104	106	108	110	111.5	113.5	114.5	113.5	114.5	113	113	114	111	110	108	107	106	105	103
2026-10-16	103	102	101	100.5	100.5	101	100	98.5	97.5	97.5	95.5	94.5	93	92	90.5	88.5	86.5	87	86	85.5	85	85	86	86.5
2026-10-17	88	87	85.5	85	83.5	83.5	82	82	82.5	81.5	80.5	81	83	82	82	81.5	81.5	81.5	80.5	81.5	81.5	82	83	83
2026-10-18	82.5	82.5	83	82.5	82	81.5	79.5	79.5	79.5	79	77.5	77	74.5	75	74.5	75.5	74.5	74.5	73.5	73.5	71	68.5	66	63.5
2026-10-19	61.5	60.5	58.5	58	57.5	57	57	57	56	56.5	57.5	58	58	58	58.5	58.5	60	62	64.5	67	68	68.5	69.5	69.5
2026-10-20	69.5	70	70	71	73	74	74	74.5	75.5	73.5	73.5	73.5	74.5	76	77.5	79	79.5	79	80	79	77.5	77	78.5	79

Observation categories

Good: 0

Moderate: 287

Unhealthy for Sensitive Groups: 49

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	84.4Moderate	120	69.9	168 / 0
Tanah Merah	80.3Moderate	113	67.1	168 / 0

Kelantan air quality.
Weekly state review.

14 – 20 Oct 20267 days · 2 monitoring stations

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi negeri Kelantan

Across Kelantan, air quality for the week of 14 – 20 Oct 2026 averaged an Air Pollutant Index (API) of 68.5 (Moderate).

State weekly average

68.5API

Moderate · Sederhana

Daily averages53.8 – 84.1 APIWed → Tue

Explore the week

State's peak reading: 91Kota BharuPeak reading across state
Cleanest area in state: 67.1Tanah MerahLowest weekly average
Good to Moderate air: 100%of all readings336 readings
National standing: #4of 16 states/territoriesNational avg: 108.7 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 · 0–100 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	67.5	57	81
Thu, 15 Oct	84.1	75	91
Fri, 16 Oct	76.2	69	84
Sat, 17 Oct	69	65	74
Sun, 18 Oct	64.7	55	73
Mon, 19 Oct	53.8	50	62
Tue, 20 Oct	64	58	72

Monitoring stations in Kelantan

Kedudukan stesen pemantauan di seluruh negeri mengikut purata mingguan

Scale 0 – 100

Tanah Merah67.1avg
Kelantan
50Moderate87
Kota Bharu69.9avg
Kelantan
50Moderate91

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.

0255075100APIBrighter cells ran hazier than the rest of this week (50 – 88 API)

Haziest hour of the week: Thu at 11:00 MYT, averaging API 88 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	60.5	61.5	61.5	61.5	62	61.5	61.5	62	62	62.5	63.5	64.5	66	68	69.5	70.5	72	73.5	74	75	76	77	77	77.5
Thu	77	77.5	79	80	81.5	82.5	83.5	84.5	85.5	86.5	87.5	88	87.5	88	87	87	87.5	86	85.5	84.5	84	83.5	83	82
Fri	82	81.5	81	80.5	80.5	81	80.5	79.5	79	79	78	77	76	75.5	74.5	73	71.5	72	71.5	71	70.5	70.5	71	71.5
Sat	72.5	72	71	70.5	69.5	69.5	68.5	68.5	69	68	67.5	68	69.5	68.5	68.5	68	68	68	67.5	68	68	68.5	69.5	69.5
Sun	69	69	69.5	69	68.5	68	67	67	67	66.5	65.5	65	63.5	64	63.5	64	63.5	63.5	62.5	62.5	61	59.5	57.5	56
Mon	54.5	54	52.5	52	51.5	51	51	51	50	50.5	51.5	52	52	52	52.5	52.5	53.5	55	56.5	58	59	59.5	60	60
Tue	60	60.5	60.5	61	62.5	63	63	63.5	64	63	63	63	63.5	64.5	65.5	66.5	67	66.5	67	66.5	65.5	65	66	66.5

How readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik2%6
ModerateSederhana98%330
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 336 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