Alor Setar air quality.
Weekly station review.

9 – 15 Sep 20267 days · Kedah

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

During the week of 9 – 15 Sep 2026, air quality at Alor Setar averaged an Air Pollutant Index (API) of 44.5 (Good). Readings peaked at 91.

Station weekly average

44.5API

Good · Baik

Daily averages26 – 79 APIWed → Tue

Explore the week

Week's peak reading: 91ModeratePeak during 7-day window
Rank in Kedah: #2of 4 stationsState avg: 50.8 API
Good to Moderate air: 100%of hourly readings168 readings recorded
National standing: #3of 68 stationsNational avg: 92.7 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 · 0–100 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, 9 Sep	41.7	37	52
Thu, 10 Sep	43	40	46
Fri, 11 Sep	36.9	28	44
Sat, 12 Sep	26	23	29
Sun, 13 Sep	28.6	25	34
Mon, 14 Sep	56.1	37	71
Tue, 15 Sep	79	71	91

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 Alor Setar shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100APIBrighter cells ran hazier than the rest of this week (23 – 91 API)

Haziest hour of the week: Tue at 23:00 MYT, averaging API 91 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	52	50	48	45	44	44	44	44	43	43	43	42	40	39	38	37	37	37	38	38	38	38	39	40
Thu	41	42	43	45	45	45	44	44	43	42	41	40	40	41	42	42	42	43	43	43	44	45	46	45
Fri	44	43	42	41	39	39	39	38	39	39	39	38	39	38	37	36	36	35	34	33	32	29	28	29
Sat	29	28	28	29	29	29	28	27	25	24	24	23	23	23	24	24	25	25	25	26	26	27	27	26
Sun	25	25	26	27	28	27	27	27	28	28	29	30	30	30	30	29	29	29	28	28	30	30	32	34
Mon	37	40	43	44	46	49	51	52	52	53	54	55	56	58	59	60	62	63	65	67	68	70	71	71
Tue	71	71	71	71	72	73	73	74	75	76	76	77	78	79	81	82	84	85	86	86	87	88	89	91

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik74%125
ModerateSederhana26%43
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 168 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 Alor Setar

Perbandingan purata mingguan dengan stesen berhampiran

Kangar34.6 API
Good36 away
Sungai Petani70 API
Moderate58 away
Langkawi32.6 API
Good58 away
Seberang Jaya67.3 API
Moderate82 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	52	50	48	45	44	44	44	44	43	43	43	42	40	39	38	37	37	37	38	38	38	38	39	40
Thu	41	42	43	45	45	45	44	44	43	42	41	40	40	41	42	42	42	43	43	43	44	45	46	45
Fri	44	43	42	41	39	39	39	38	39	39	39	38	39	38	37	36	36	35	34	33	32	29	28	29
Sat	29	28	28	29	29	29	28	27	25	24	24	23	23	23	24	24	25	25	25	26	26	27	27	26
Sun	25	25	26	27	28	27	27	27	28	28	29	30	30	30	30	29	29	29	28	28	30	30	32	34
Mon	37	40	43	44	46	49	51	52	52	53	54	55	56	58	59	60	62	63	65	67	68	70	71	71
Tue	71	71	71	71	72	73	73	74	75	76	76	77	78	79	81	82	84	85	86	86	87	88	89	91

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	52	50	48	45	44	44	44	44	43	43	43	42	40	39	38	37	37	37	38	38	38	38	39	40
Thu	41	42	43	45	45	45	44	44	43	42	41	40	40	41	42	42	42	43	43	43	44	45	46	45
Fri	44	43	42	41	39	39	39	38	39	39	39	38	39	38	37	36	36	35	34	33	32	29	28	29
Sat	29	28	28	29	29	29	28	27	25	24	24	23	23	23	24	24	25	25	25	26	26	27	27	26
Sun	25	25	26	27	28	27	27	27	28	28	29	30	30	30	30	29	29	29	28	28	30	30	32	34
Mon	37	40	43	44	46	49	51	52	52	53	54	55	56	58	59	60	62	63	65	67	68	70	71	71
Tue	71	71	71	71	72	73	73	74	75	76	76	77	78	79	81	82	84	85	86	86	87	88	89	91

Alor Setar air quality.Weekly station review.