21 – 27 Oct 2026 · Malaysia

Langkawi weekly air quality

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

46Weekly mean AQI · Good

Official DOE API mean: 35.5. 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

127 eligible observations · 18 excluded.

-17.9 AQI compared with the previous week’s eligible mean of 63.9.

Peak AQI: 67 at Langkawi · 22 Oct 2026, 19:00 (UTC+8).

Daily US AQI (PM2.5)

Low 17High 67AQI

21 Oct27 Oct

27 OctDaily mean · Peak 1717Avg AQI

Based on 1 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
2026-10-21	41.3Good	52	24 / 0
2026-10-22	61.7Moderate	67	24 / 0
2026-10-23	57.8Moderate	65	24 / 0
2026-10-24	52.8Moderate	57	24 / 0
2026-10-25	25.5Good	38	22 / 2
2026-10-26	17.1Good	18	8 / 16
2026-10-27	17Good	17	1 / 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
2026-10-21	41	41	40	38	37	36	36	37	38	38	38	38	38	38	40	40	41	44	45	47	48	48	51	52
2026-10-22	53	54	55	56	57	58	59	59	59	61	62	62	64	64	64	65	65	65	65	67	67	67	67	65
2026-10-23	65	65	64	64	62	62	61	59	59	58	58	57	57	56	55	55	55	55	54	54	53	53	53	54
2026-10-24	55	55	55	55	56	56	57	56	56	56	55	55	54	54	53	53	52	52	51	51	49	47	44	40
2026-10-25	38	37	34	32	31	28	27	25	25	25	25	24	24	24	24	24	22	21	—	20	—	18	17	17
2026-10-26	17	17	17	17	17	18	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	17	17
2026-10-27	17	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 57

Moderate: 70

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

Langkawi air quality.
Weekly station review.

21 – 27 Oct 20267 days · Kedah

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen Langkawi, Kedah

During the week of 21 – 27 Oct 2026, air quality at Langkawi averaged an Air Pollutant Index (API) of 35.5 (Good). Readings peaked at 58.

Station weekly average

35.5API

Good · Baik

Daily averages13 – 53.8 APIWed → Tue

Explore the week

Week's peak reading: 58ModeratePeak during 7-day window
Rank in Kedah: #1of 4 stationsState avg: 45 API
Good to Moderate air: 100%of hourly readings145 readings recorded
National standing: #1of 68 stationsNational avg: 84.4 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 · 0–80 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, 21 Oct	31.2	27	40
Thu, 22 Oct	53.8	42	58
Fri, 23 Oct	50.1	43	57
Sat, 24 Oct	43.7	30	51
Sun, 25 Oct	18.9	13	29
Mon, 26 Oct	16.3	13	19
Tue, 27 Oct	13	13	13

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 Langkawi shows local patterns like traffic peaks and afternoon haze accumulation.

020406080APIBrighter cells ran hazier than the rest of this week (13 – 58 API)

Haziest hour of the week: Thu at 19:00 MYT, averaging API 58 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	31	31	30	29	28	27	27	28	29	29	29	29	29	29	30	30	31	33	34	35	36	36	38	40
Thu	42	44	46	49	51	52	53	53	53	54	55	55	56	56	56	57	57	57	57	58	58	58	58	57
Fri	57	57	56	56	55	55	54	53	53	52	52	51	51	49	48	47	47	46	45	44	43	43	43	45
Sat	46	46	47	48	49	50	51	50	50	49	47	47	45	44	43	42	41	40	39	39	37	35	33	30
Sun	29	28	26	24	23	21	20	19	19	19	19	18	18	18	18	18	17	16	15	15	14	14	13	13
Mon	13	13	13	13	13	14	15	17	17	19	19	19	19	19	19	19	19	19	19	18	16	14	13	13
Tue	13	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik77%111
ModerateSederhana23%34
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 145 hourly station readings.

What it meant for this area

Panduan kesihatan mengikut kategori kualiti udara

Air quality is good. Outdoor activities are fine for everyone.

Kualiti udara baik. Aktiviti luar sesuai untuk semua.

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 Langkawi

Perbandingan purata mingguan dengan stesen berhampiran

Kangar44.4 API
Good40 away
Alor Setar44.6 API
Good58 away
Sungai Petani51.1 API
Moderate103 away
Balik Pulau45.9 API
Good117 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	31	31	30	29	28	27	27	28	29	29	29	29	29	29	30	30	31	33	34	35	36	36	38	40
Thu	42	44	46	49	51	52	53	53	53	54	55	55	56	56	56	57	57	57	57	58	58	58	58	57
Fri	57	57	56	56	55	55	54	53	53	52	52	51	51	49	48	47	47	46	45	44	43	43	43	45
Sat	46	46	47	48	49	50	51	50	50	49	47	47	45	44	43	42	41	40	39	39	37	35	33	30
Sun	29	28	26	24	23	21	20	19	19	19	19	18	18	18	18	18	17	16	15	15	14	14	13	13
Mon	13	13	13	13	13	14	15	17	17	19	19	19	19	19	19	19	19	19	19	18	16	14	13	13
Tue	13	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

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	31	31	30	29	28	27	27	28	29	29	29	29	29	29	30	30	31	33	34	35	36	36	38	40
Thu	42	44	46	49	51	52	53	53	53	54	55	55	56	56	56	57	57	57	57	58	58	58	58	57
Fri	57	57	56	56	55	55	54	53	53	52	52	51	51	49	48	47	47	46	45	44	43	43	43	45
Sat	46	46	47	48	49	50	51	50	50	49	47	47	45	44	43	42	41	40	39	39	37	35	33	30
Sun	29	28	26	24	23	21	20	19	19	19	19	18	18	18	18	18	17	16	15	15	14	14	13	13
Mon	13	13	13	13	13	14	15	17	17	19	19	19	19	19	19	19	19	19	19	18	16	14	13	13
Tue	13	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—