28 Oct – 3 Nov 2026 · Malaysia

Malaysia weekly air quality

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

63.3Weekly mean AQI · Moderate

Official DOE API mean: 53. 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

11299 eligible observations · 125 excluded.

-30.8 AQI compared with the previous week’s eligible mean of 94.1.

Peak AQI: 124 at Batu Pahat · 28 Oct 2026, 07:00 (UTC+8).

Daily US AQI (PM2.5)

Low 16High 124AQI

28 Oct3 Nov

3 NovDaily mean · Peak 11161.6Avg AQI

Based on 1625 hourly readings.

7 observations excluded because their pollutant is unknown or unsupported.

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
2026-10-28	65.1Moderate	124	1582 / 50
2026-10-29	61.8Moderate	115	1624 / 8
2026-10-30	59.4Moderate	107	1607 / 25
2026-10-31	62.1Moderate	111	1619 / 13
2026-11-01	66Moderate	122	1611 / 21
2026-11-02	67.2Moderate	122	1631 / 1
2026-11-03	61.6Moderate	111	1625 / 7

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
2026-10-28	67.6	67.3	67	66.9	66	65.9	65.8	65.9	65.5	65.4	64.1	64.4	63.9	64.4	64.9	64.6	65	64.9	64.5	64.9	64.4	63.2	63.4	62.9
2026-10-29	63	62.6	62.6	62.6	62.6	62.5	62.4	61.9	61.6	61.4	61.4	61.9	62	61.9	61.6	61.6	61.6	61.8	62.2	62	61.3	61.2	60.4	60.1
2026-10-30	60	59.9	59.4	59.2	58.9	58.8	58.9	58.9	58.7	58.5	58.4	58.4	58.6	58.6	59.7	59.5	59.9	59.9	60.2	60.1	60.3	59.8	60	60.5
2026-10-31	60.8	61.1	61.5	61.7	61.8	61.9	62	62.1	62.3	62.4	62.3	61.8	61.5	61.6	61.6	61.9	62	62.3	62.7	63	62.2	62.9	63.2	63.1
2026-11-01	63.3	63.5	63.8	63.9	64.3	64.4	64.5	64.6	64.8	64.9	65.2	66	66.5	66.8	67.1	67.2	68.1	68.3	67.7	67.3	68.1	68.3	68.6	68.3
2026-11-02	68.5	68.6	68.7	68.6	68.6	68.4	68.5	68.5	68.4	68.3	68.2	68.2	68	67.7	67.4	67.2	66.6	66.3	65.9	65.4	65	64.5	64.2	63.9
2026-11-03	63.5	63.4	63.1	63	62.6	62.5	62.2	61.9	61.8	61.5	61.2	61	60.8	60.6	60.4	60.4	60.2	60.7	60.9	61.1	61.3	61.6	61.8	61.9

Observation categories

Good: 1968

Moderate: 8961

Unhealthy for Sensitive Groups: 370

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
Batu Muda	97.1Moderate	115	77.9	168 / 0
JOHAN SETIA	90.1Moderate	122	73	168 / 0
Pasir Gudang	88.5Moderate	107	72.8	168 / 0
Larkin	87.6Moderate	103	72.4	168 / 0
Klang	86.6Moderate	115	71.1	168 / 0
Kluang	83.6Moderate	115	69.5	168 / 0
Cheras	80.2Moderate	107	69.2	151 / 17
Nilai	79.5Moderate	115	66.5	168 / 0
Putrajaya	75.5Moderate	109	64.1	167 / 1
Shah Alam	75.5Moderate	94	63.6	168 / 0
Banting	75.5Moderate	115	63.6	168 / 0
Tasek Ipoh	73.8Moderate	84	62.9	168 / 0
Tangkak	73.6Moderate	91	62.8	168 / 0
Seberang Perai	73.1Moderate	83	62.5	168 / 0
Seremban	72.2Moderate	93	61.2	168 / 0
Balok Baru Kuantan	72.1Moderate	81	61.9	167 / 1
Kota Tinggi	71.3Moderate	88	61	168 / 0
Samalaju	71.3Moderate	111	61.2	168 / 0
Batu Pahat	71Moderate	124	59.7	164 / 4
Bandaraya Melaka	70.7Moderate	84	60.6	168 / 0
Seri Manjung	70.5Moderate	96	60.6	168 / 0
Bukit Rambai	70.2Moderate	87	60.4	168 / 0
Keningau	69.6Moderate	101	58.5	168 / 0
Pengerang	68.3Moderate	86	59.1	168 / 0
Tawau	68.1Moderate	72	59	168 / 0
Alor Gajah	67.8Moderate	78	58.6	168 / 0
Petaling Jaya	67.3Moderate	86	57.6	168 / 0
Segamat	66.8Moderate	80	57.6	168 / 0
Sri Aman	66.8Moderate	96	55.9	168 / 0
IPD Serian	65.9Moderate	93	55.2	168 / 0
Kuching	65.8Moderate	88	56.8	168 / 0
Port Dickson	64.3Moderate	86	55.3	168 / 0
Samarahan	64.3Moderate	88	55.4	168 / 0
Pegoh Ipoh	62.1Moderate	72	54.7	168 / 0
Rompin	62.1Moderate	81	52.9	168 / 0
Mukah	61.1Moderate	78	52.4	168 / 0
Kuala Terengganu	60.7Moderate	74	51.9	167 / 1
Indera Mahkota Kuantan	60Moderate	75	51.1	168 / 0
Kimanis	60Moderate	75	51.8	168 / 0
Sandakan	59.9Moderate	65	53.2	168 / 0
Kuala Selangor	58.7Moderate	75	49.6	168 / 0
Sarikei	58.7Moderate	81	49.4	168 / 0
Kota Bharu	58.2Moderate	74	50	168 / 0
Politeknik Kota Kinabalu	58.1Moderate	67	50	168 / 0
Sibu	57.7Moderate	80	48.2	168 / 0
Kemaman	57.5Moderate	78	48.5	168 / 0
Bintulu	57.1Moderate	90	48.4	168 / 0
Sungai Petani	56Moderate	70	47	168 / 0
Labuan	55.8Moderate	68	46.4	158 / 10
Seberang Jaya	54.3Moderate	68	45.2	168 / 0
Kapit	53.8Moderate	74	44.6	168 / 0
Tanah Merah	53.6Moderate	72	45	168 / 0
Temerloh	52.6Moderate	71	42.4	168 / 0
Tanjung Malim	51.4Moderate	68	42.3	168 / 0
Minden	51.2Moderate	65	42	168 / 0
Miri	50.9Moderate	71	40.9	164 / 4
Paka	50.3Moderate	61	41.3	168 / 0
Besut	48.2Good	62	38.3	168 / 0
Taiping	48.1Good	64	40.5	168 / 0
Kota Kinabalu	46.1Good	62	36.6	165 / 3
Limbang	45.9Good	65	36.4	168 / 0
Kangar	45.6Good	54	35.2	168 / 0
Alor Setar	44.7Good	56	34.7	163 / 5
Kulim Hi-Tech	44.6Good	58	35.2	168 / 0
ILP Miri	44.4Good	59	35.4	168 / 0
Balik Pulau	44.2Good	70	32.8	129 / 39
Jerantut	42.2Good	70	33	151 / 17
Langkawi	36.2Good	56	27.1	145 / 23

States by US AQI

State	Mean AQI	Official API mean	Eligible / excluded
Kuala Lumpur	89.1	73.5	319 / 17
Johor	76.4	64.4	1340 / 4
Selangor	75.6	63.1	1008 / 0
Putrajaya	75.5	64.1	167 / 1
Negeri Sembilan	72	61	504 / 0
Melaka	69.5	59.9	504 / 0
Perak	61.2	52.2	840 / 0
Sabah	60.3	51.5	1005 / 3
Sarawak	58.8	49.2	2180 / 4
Pahang	58.1	48.3	822 / 18
Penang	56.4	45.6	633 / 39
Kelantan	55.9	47.5	336 / 0
Labuan	55.8	46.4	158 / 10
Terengganu	54.2	45	671 / 1
Kedah	45.7	36	644 / 28
Perlis	45.6	35.2	168 / 0

Malaysia air quality.
The week in review.

28 Oct – 3 Nov 20267 days · Malaysia Time

Laporan mingguan Indeks Pencemaran Udara (IPU) dan jerebu Malaysia

During the week of 28 Oct – 3 Nov 2026, Malaysia recorded an overall average Air Pollutant Index (API) of 53 (Moderate).

National weekly average

53API

Moderate · Sederhana

27.6 API cleaner than the week before, which averaged 80.6

Daily averages50 – 56 APIWed → Tue

Explore the week

Week's highest reading: 106Cheras, Kuala Lumpur20:00 MYT, 30 Oct 2026
Cleanest average: 27.1Langkawi, KedahGood weekly average
Good to Moderate air: 100%of all hourly readings11,424 readings in total
Stations reporting: 68of 68 DOE stations16 states and territories

Seven days of national 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 · 0–125 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, 28 Oct	53.3	11	93
Thu, 29 Oct	52.2	16	88
Fri, 30 Oct	50	13	106
Sat, 31 Oct	52.3	21	90
Sun, 1 Nov	55.1	17	97
Mon, 2 Nov	56	24	92
Tue, 3 Nov	51.9	25	90

Where the haze sat

Taburan kualiti udara mengikut negeri dan stesen

Peak: Cheras · 106

Compare weekly station averages across Peninsular Malaysia, Sabah and Sarawak. Each dot represents a monitoring station. Use the state rankings below to compare regional averages with the highest reading in each state.

Peninsular Malaysia · Semenanjung Malaysia

Sabah, Sarawak & Labuan · Borneo Malaysia

020406080State average APIOne DOE station, sized and shaded by its weekly average

The week, hour by hour

Purata kebangsaan bagi setiap jam sepanjang tujuh hari

Read each row from midnight to 11pm, in Malaysia Time. The hourly national average helps identify when readings rose or fell during the week. Empty cells mean no hourly figure is available.

020406080APIBrighter cells ran hazier than the rest of this week (48.9 – 57.2 API)

Haziest hour of the week: Mon at 01:00 MYT, averaging API 57.2 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	55.5	55.1	54.9	54.7	54.4	54.3	54.1	54.2	53.8	53.7	53.2	52.9	52.6	52.5	52.4	52.3	52.4	52.2	52.2	52.3	52.2	52.3	52.4	52.5
Thu	52.7	52.8	52.9	53	52.9	52.8	52.7	52.3	52	51.8	51.8	52.1	52.2	52.1	52	52.1	52.1	52	52	51.9	51.7	51.7	51.6	51.3
Fri	51.1	51	50.6	50.4	50.2	50	50.1	50	49.8	50.2	49.5	49.4	49.3	49.1	49	48.9	49.2	49.4	50.2	50.4	50.6	50.4	50.4	50.9
Sat	51.3	51.4	51.8	51.9	52	52.1	52.2	52.3	52.5	52.5	52.5	52.2	51.9	52	52	52	52.2	52.2	52.4	52.8	52.9	52.9	53.1	53.1
Sun	53.2	53.4	53.7	53.7	54	54.1	54.2	54.3	54.3	54.4	54.7	54.8	55.2	55.5	55.7	55.8	55.9	56.1	56.1	56.5	56.5	56.5	56.8	57
Mon	57.1	57.2	57.1	57.1	57.1	56.9	57	56.9	56.8	56.8	56.7	56.6	56.5	56.3	56.1	56	55.8	55.3	54.9	54.5	54.1	53.9	53.7	53.5
Tue	53.2	53.1	52.9	52.9	52.7	52.6	52.3	52	51.9	51.7	51.5	51.4	51.1	50.9	50.8	50.8	51	51.3	51.5	51.9	52	52	52.1	52.3

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik34%3,922
ModerateSederhana66%7,500
UnhealthyTidak Sihat0%2
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 11,424 hourly station readings.

What it meant for your week

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

States ranked by weekly average

Kedudukan negeri mengikut purata IPU mingguan

Marker shows each state's peak

Kuala Lumpur73.6Moderate · 2 stations
Johor64.4Moderate · 8 stations
Putrajaya64.1Moderate · 1 station
Selangor63.1Moderate · 6 stations
Negeri Sembilan61Moderate · 3 stations
Melaka59.9Moderate · 3 stations
Perak52.2Moderate · 5 stations
Sabah51.5Moderate · 6 stations
Sarawak49.2Good · 13 stations
Pahang48.3Good · 5 stations
Kelantan47.5Good · 2 stations
Labuan46.4Good · 1 station
Penang45.6Good · 4 stations
Terengganu45Good · 4 stations
Kedah36Good · 4 stations
Perlis35.2Good · 1 station

Cleanest air of the week

Lima stesen dengan purata IPU terendah

Scale 0 – 125

Langkawi27.1avg
Kedah
13Good50
Balik Pulau32.8avg
Pulau Pinang
11Good60
Jerantut33avg
Pahang
17Good60
Alor Setar34.7avg
Kedah
22Good49
Kangar35.2avg
Perlis
22Good45

Highest readings of the week

Lima stesen dengan bacaan IPU tertinggi

Scale 0 – 125

Cheras106peak
WP Kuala Lumpur
55Moderate106
Batu Pahat93peak
Johor
43Moderate93
JOHAN SETIA92peak
Selangor
55Moderate92
Balok Baru Kuantan89peak
Pahang
56Moderate89
Batu Muda88peak
WP Kuala Lumpur
65Moderate88

Major cities

Purata dan puncak mingguan bagi bandar utama Malaysia

Johor BahruJohor72.4Moderate · SederhanaPeak 82Larkin
Kuala LumpurKuala Lumpur69.2Moderate · SederhanaPeak 106Cheras
KuchingSarawak56.8Moderate · SederhanaPeak 73Kuching
Alor SetarKedah34.7Good · BaikPeak 49Alor Setar
Kota BharuKelantan50Good · BaikPeak 63Kota Bharu
MelakaMelaka60.6Moderate · SederhanaPeak 70Bandaraya Melaka
SerembanNegeri Sembilan61.2Moderate · SederhanaPeak 76Seremban
KuantanPahang51.1Moderate · SederhanaPeak 64Indera Mahkota Kuantan
George TownPulau Pinang42Good · BaikPeak 57Minden
IpohPerak62.9Moderate · SederhanaPeak 70Tasek Ipoh
KangarPerlis35.2Good · BaikPeak 45Kangar
Kota KinabaluSabah36.6Good · BaikPeak 55Kota Kinabalu
Shah AlamSelangor63.6Moderate · SederhanaPeak 77Shah Alam
Kuala TerengganuTerengganu51.9Moderate · SederhanaPeak 63Kuala Terengganu

Reading the report

What a week of
air quality tells us.

A closer look at Malaysia's Air Pollutant Index, known locally as Indeks Pencemaran Udara or IPU.

Malaysia's weekly API in context

This report covers 28 Oct – 3 Nov 2026, the latest Wednesday-to-Tuesday reporting week in Malaysia Time. The national weekly average of 53 API falls in the Moderate category. On Tuesday, the final day's data is partial until all hourly readings arrive. It summarises the period across reporting stations; it does not describe every place at every hour.

Why averages and peaks tell different stories

A weekly average shows the level across the available readings. A peak is the highest single reading during that period, so a short rise at one station can stand out even when the weekly average is lower. For this report, the highest value is 106 API at Cheras in Kuala Lumpur. Compare the solid average line with the station peak and min–max range to see that difference.

Comparing states, stations and cities

State averages combine station averages in proportion to their reading counts. Stations with more observations contribute more to the result. City summaries use a representative monitoring station, named below each city. That station describes its monitoring location; readings can differ elsewhere in the city.

Where these numbers come from

This report uses 11,424 stored hourly readings from 68 reporting stations. The archive collects the Department of Environment Malaysia's APIMS feed. Coverage depends on the readings received during the reporting window. Missing observations can affect comparisons between places and periods.

Looking for today's haze conditions?

This is a historical weekly summary. For current conditions, open the live Malaysia air quality report or find a nearby station on the air quality map. The about page explains the source and how Haze Monitor presents the data.

Questions readers ask

Soalan lazim berkenaan jerebu dan kualiti udara Malaysia

What was Malaysia's average air quality during the latest reporting week?

Across 28 Oct – 3 Nov 2026, Malaysia averaged an Air Pollutant Index of 53, which sits in the Moderate band (Sederhana). 100% of all hourly readings stayed within Good or Moderate.

Where was the cleanest air recorded?

Langkawi in Kedah held the lowest weekly average at API 27.1 (Good).

Which area had the worst haze?

The single highest reading of the week was API 106 (Unhealthy) at Cheras, Kuala Lumpur, recorded at 20:00 MYT, 30 Oct 2026.

How is this report put together?

Hourly readings are collected from the Department of Environment's APIMS feed for all 68 national stations and stored as they arrive. The report advances to a new Wednesday-to-Tuesday period each Tuesday in Malaysia Time and refreshes hourly. On Tuesday, readings for the final day accumulate as they arrive. State figures weight each station by how many hours it actually reported.