9 – 15 Sep 2026 · Malaysia

Malaysia weekly air quality

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

—Weekly mean AQI · Unavailable

Official DOE API mean: 92.7. 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

0 eligible observations · 11424 excluded. No convertible observations are available for this week. Older archives may lack the required pollutant data.

Daily US AQI (PM2.5)

No eligible observations for this period.

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
2026-09-09	—Unavailable	—	0 / 1632
2026-09-10	—Unavailable	—	0 / 1632
2026-09-11	—Unavailable	—	0 / 1632
2026-09-12	—Unavailable	—	0 / 1632
2026-09-13	—Unavailable	—	0 / 1632
2026-09-14	—Unavailable	—	0 / 1632
2026-09-15	—Unavailable	—	0 / 1632

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
2026-09-09	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
2026-09-10	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
2026-09-11	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
2026-09-12	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
2026-09-13	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
2026-09-14	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
2026-09-15	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 0

Unhealthy for Sensitive Groups: 0

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
Kangar	—Unavailable	—	34.6	0 / 168
Langkawi	—Unavailable	—	32.6	0 / 168
Alor Setar	—Unavailable	—	44.5	0 / 168
Sungai Petani	—Unavailable	—	70	0 / 168
Kulim Hi-Tech	—Unavailable	—	56	0 / 168
Seberang Jaya	—Unavailable	—	67.3	0 / 168
Seberang Perai	—Unavailable	—	64	0 / 168
Minden	—Unavailable	—	63.4	0 / 168
Balik Pulau	—Unavailable	—	53	0 / 168
Taiping	—Unavailable	—	66.1	0 / 168
Tasek Ipoh	—Unavailable	—	99.1	0 / 168
Pegoh Ipoh	—Unavailable	—	78.6	0 / 168
Seri Manjung	—Unavailable	—	97.6	0 / 168
Tanjung Malim	—Unavailable	—	95	0 / 168
Batu Muda	—Unavailable	—	118.9	0 / 168
Cheras	—Unavailable	—	118.9	0 / 168
Putrajaya	—Unavailable	—	109.6	0 / 168
Kuala Selangor	—Unavailable	—	91.5	0 / 168
Petaling Jaya	—Unavailable	—	97.7	0 / 168
Shah Alam	—Unavailable	—	106.8	0 / 168
Klang	—Unavailable	—	95.6	0 / 168
Banting	—Unavailable	—	101.4	0 / 168
Nilai	—Unavailable	—	114.7	0 / 168
Seremban	—Unavailable	—	112.8	0 / 168
Port Dickson	—Unavailable	—	85.4	0 / 168
Alor Gajah	—Unavailable	—	107.5	0 / 168
Bukit Rambai	—Unavailable	—	108.9	0 / 168
Bandaraya Melaka	—Unavailable	—	78.6	0 / 168
Segamat	—Unavailable	—	98.4	0 / 168
Batu Pahat	—Unavailable	—	108.6	0 / 168
Kluang	—Unavailable	—	105.4	0 / 168
Larkin	—Unavailable	—	115	0 / 168
Pasir Gudang	—Unavailable	—	115.9	0 / 168
Pengerang	—Unavailable	—	99	0 / 168
Kota Tinggi	—Unavailable	—	102	0 / 168
Rompin	—Unavailable	—	86.8	0 / 168
Temerloh	—Unavailable	—	86.6	0 / 168
Jerantut	—Unavailable	—	93.3	0 / 168
Indera Mahkota Kuantan	—Unavailable	—	94.7	0 / 168
Balok Baru Kuantan	—Unavailable	—	94.5	0 / 168
Kemaman	—Unavailable	—	91.4	0 / 168
Paka	—Unavailable	—	88.6	0 / 168
Kuala Terengganu	—Unavailable	—	82.8	0 / 168
Besut	—Unavailable	—	55.7	0 / 168
Tanah Merah	—Unavailable	—	56.4	0 / 168
Kota Bharu	—Unavailable	—	55.4	0 / 168
Tawau	—Unavailable	—	67.6	0 / 168
Sandakan	—Unavailable	—	60.6	0 / 168
Kota Kinabalu	—Unavailable	—	74.1	0 / 168
Kimanis	—Unavailable	—	74.9	0 / 168
Keningau	—Unavailable	—	57	0 / 168
Labuan	—Unavailable	—	75.3	0 / 168
Limbang	—Unavailable	—	67.3	0 / 168
ILP Miri	—Unavailable	—	89.8	0 / 168
Miri	—Unavailable	—	87.3	0 / 168
Samalaju	—Unavailable	—	115.3	0 / 168
Bintulu	—Unavailable	—	106.1	0 / 168
Mukah	—Unavailable	—	107.2	0 / 168
Kapit	—Unavailable	—	76.4	0 / 168
Sibu	—Unavailable	—	114.4	0 / 168
Sarikei	—Unavailable	—	124.3	0 / 168
Sri Aman	—Unavailable	—	159.9	0 / 168
Samarahan	—Unavailable	—	165.8	0 / 168
Kuching	—Unavailable	—	164.5	0 / 168
Tangkak	—Unavailable	—	109.3	0 / 168
JOHAN SETIA	—Unavailable	—	128.5	0 / 168
IPD Serian	—Unavailable	—	197.7	0 / 168
Politeknik Kota Kinabalu	—Unavailable	—	82	0 / 168

States by US AQI

State	Mean AQI	Official API mean	Eligible / excluded
Perlis	—	34.6	0 / 168
Kedah	—	50.8	0 / 672
Penang	—	61.9	0 / 672
Perak	—	87.3	0 / 840
Kuala Lumpur	—	118.9	0 / 336
Putrajaya	—	109.6	0 / 168
Selangor	—	103.6	0 / 1008
Negeri Sembilan	—	104.3	0 / 504
Melaka	—	98.3	0 / 504
Johor	—	106.7	0 / 1344
Pahang	—	91.2	0 / 840
Terengganu	—	79.6	0 / 672
Kelantan	—	55.9	0 / 336
Sabah	—	69.4	0 / 1008
Labuan	—	75.3	0 / 168
Sarawak	—	121.2	0 / 2184

Malaysia air quality.
The week in review.

9 – 15 Sep 20267 days · Malaysia Time

Laporan mingguan Indeks Pencemaran Udara (IPU) dan jerebu Malaysia

During the week of 9 – 15 Sep 2026, Malaysia recorded an overall average Air Pollutant Index (API) of 92.7 (Moderate).

National weekly average

92.7API

Moderate · Sederhana

Daily averages73.9 – 119.7 APIWed → Tue

Explore the week

Week's highest reading: 260IPD Serian, Sarawak08:00 MYT, 12 Sept 2026
Cleanest average: 32.6Langkawi, KedahGood weekly average
Good to Moderate air: 73%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 · 0–300 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, 9 Sep	113.2	20	218
Thu, 10 Sep	91.3	24	199
Fri, 11 Sep	85.9	14	238
Sat, 12 Sep	73.9	13	260
Sun, 13 Sep	74.1	18	204
Mon, 14 Sep	91	23	186
Tue, 15 Sep	119.7	45	190

Where the haze sat

Taburan kualiti udara mengikut negeri dan stesen

Peak: IPD Serian · 260

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

0255075100125State 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.

050100150APIBrighter cells ran hazier than the rest of this week (71 – 124.8 API)

Haziest hour of the week: Tue at 21:00 MYT, averaging API 124.8 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	115.8	115.9	115.9	116	116.1	116.3	116.5	116.6	116.2	116.2	115.2	114.4	113.5	112.6	112.3	111.7	111.5	111.1	110.5	109.8	109.3	108.9	108.1	107.3
Thu	106.1	104.4	102.2	100.8	99.3	97.4	95	92.5	91	89.4	88.4	87.8	87.5	87.2	87	86.8	86.9	86.6	86.6	86.3	85.9	85.9	85.7	85.6
Fri	85.6	85.9	86	86.4	87.3	87.9	88.4	88.7	88.2	87.7	88	88.3	88	87.9	87.6	86.9	86.1	85.1	84.1	83.3	82	81.2	80.4	79.6
Sat	78.8	78.2	77.7	77.2	76.7	76.3	75.9	75.6	75.4	75.2	74.6	73.9	73.1	72.5	71.8	71.1	71	71	71.1	71.1	71.3	71.3	71.5	71.8
Sun	71.9	72	72.1	72.2	72.3	72.3	72.4	72.4	72.7	73.1	73.2	73.5	73.9	74.2	74.4	74.6	75	75.3	75.8	76.2	76.7	76.8	77.1	77.7
Mon	78.5	79.4	80	80.4	81.1	81.8	82.5	83.1	83.8	84.4	85.8	87.4	88.8	90.6	92.4	94.5	97	99.1	101.2	102.8	104.3	106.6	108.5	110
Tue	111	111.9	112.7	113.8	114.6	115.6	116.3	117.1	118	119.2	120.2	120.9	121.6	121.9	122.3	122.6	122.9	123.8	123.7	124.1	124.5	124.8	124.7	124.4

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik8%949
ModerateSederhana65%7,450
UnhealthyTidak Sihat26%2,962
Very UnhealthySangat Tidak Sihat1%63
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

Sarawak121.2Unhealthy · 13 stations
Kuala Lumpur118.9Unhealthy · 2 stations
Putrajaya109.6Unhealthy · 1 station
Johor106.7Unhealthy · 8 stations
Negeri Sembilan104.3Unhealthy · 3 stations
Selangor103.6Unhealthy · 6 stations
Melaka98.3Moderate · 3 stations
Pahang91.2Moderate · 5 stations
Perak87.3Moderate · 5 stations
Terengganu79.6Moderate · 4 stations
Labuan75.3Moderate · 1 station
Sabah69.4Moderate · 6 stations
Penang61.9Moderate · 4 stations
Kelantan55.9Moderate · 2 stations
Kedah50.8Moderate · 4 stations
Perlis34.6Good · 1 station

Cleanest air of the week

Lima stesen dengan purata IPU terendah

Scale 0 – 300

Langkawi32.6avg
Kedah
13Good96
Kangar34.6avg
Perlis
15Good83
Alor Setar44.5avg
Kedah
23Good91
Balik Pulau53avg
Pulau Pinang
15Moderate159
Kota Bharu55.4avg
Kelantan
26Moderate85

Highest readings of the week

Lima stesen dengan bacaan IPU tertinggi

Scale 0 – 300

IPD Serian260peak
Sarawak
152Unhealthy260
Kuching204peak
Sarawak
76Unhealthy204
Sri Aman200peak
Sarawak
65Unhealthy200
Samarahan199peak
Sarawak
80Unhealthy199
Sarikei195peak
Sarawak
52Unhealthy195

Major cities

Purata dan puncak mingguan bagi bandar utama Malaysia

Johor BahruJohor115Unhealthy · Tidak SihatPeak 169Larkin
Kuala LumpurKuala Lumpur118.9Unhealthy · Tidak SihatPeak 180Cheras
KuchingSarawak164.5Unhealthy · Tidak SihatPeak 204Kuching
Alor SetarKedah44.5Good · BaikPeak 91Alor Setar
Kota BharuKelantan55.4Moderate · SederhanaPeak 85Kota Bharu
MelakaMelaka78.6Moderate · SederhanaPeak 112Bandaraya Melaka
SerembanNegeri Sembilan112.8Unhealthy · Tidak SihatPeak 174Seremban
KuantanPahang94.7Moderate · SederhanaPeak 167Indera Mahkota Kuantan
George TownPulau Pinang63.4Moderate · SederhanaPeak 159Minden
IpohPerak99.1Moderate · SederhanaPeak 160Tasek Ipoh
KangarPerlis34.6Good · BaikPeak 83Kangar
Kota KinabaluSabah74.1Moderate · SederhanaPeak 109Kota Kinabalu
Shah AlamSelangor106.8Unhealthy · Tidak SihatPeak 175Shah Alam
Kuala TerengganuTerengganu82.8Moderate · SederhanaPeak 162Kuala 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 9 – 15 Sep 2026, the latest Wednesday-to-Tuesday reporting week in Malaysia Time. The national weekly average of 92.7 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 260 API at IPD Serian in Sarawak. 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 9 – 15 Sep 2026, Malaysia averaged an Air Pollutant Index of 92.7, which sits in the Moderate band (Sederhana). 73% 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 32.6 (Good).

Which area had the worst haze?

The single highest reading of the week was API 260 (Very Unhealthy) at IPD Serian, Sarawak, recorded at 08:00 MYT, 12 Sept 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.