14 – 20 Oct 2026 · Malaysia

Sungai Petani weekly air quality

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

92.1Weekly mean AQI · Moderate

Official DOE API mean: 75.1. 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

168 eligible observations · 0 excluded.

-16.4 AQI compared with the previous week’s eligible mean of 108.5.

Peak AQI: 118 at Sungai Petani · 19 Oct 2026, 23:00 (UTC+8).

Daily US AQI (PM2.5)

Low 80High 118AQI

14 Oct20 Oct

20 OctDaily mean · Peak 118105.9Avg AQI

Based on 24 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	83.3Moderate	88	24 / 0
2026-10-15	90.8Moderate	96	24 / 0
2026-10-16	90.5Moderate	94	24 / 0
2026-10-17	84.8Moderate	87	24 / 0
2026-10-18	86Moderate	88	24 / 0
2026-10-19	103.7Unhealthy for Sensitive Groups	118	24 / 0
2026-10-20	105.9Unhealthy for Sensitive Groups	118	24 / 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	80	80	80	81	81	83	83	83	83	83	84	86	84	84	83	83	83	83	83	83	84	87	87	88
2026-10-15	88	88	88	88	88	88	88	88	90	90	91	91	93	94	94	96	96	96	94	93	91	90	88	88
2026-10-16	88	90	90	90	91	91	91	91	91	90	90	90	90	90	90	91	93	93	94	93	91	88	88	87
2026-10-17	87	86	86	87	86	84	84	86	86	86	86	86	86	86	86	84	83	83	81	81	83	83	84	86
2026-10-18	87	87	88	88	88	88	87	88	87	87	87	86	84	84	84	83	83	83	83	84	86	87	88	87
2026-10-19	88	90	91	91	91	93	94	94	96	97	97	99	105	107	109	113	115	115	117	117	117	117	117	118
2026-10-20	118	115	115	115	118	118	118	118	117	117	115	113	109	105	101	99	97	96	94	93	91	88	87	84

Observation categories

Good: 0

Moderate: 141

Unhealthy for Sensitive Groups: 27

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

Sungai Petani air quality.
Weekly station review.

14 – 20 Oct 20267 days · Kedah

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

During the week of 14 – 20 Oct 2026, air quality at Sungai Petani averaged an Air Pollutant Index (API) of 75.1 (Moderate). Readings peaked at 90.

Station weekly average

75.1API

Moderate · Sederhana

Daily averages69.3 – 83.2 APIWed → Tue

Explore the week

Week's peak reading: 90ModeratePeak during 7-day window
Rank in Kedah: #4of 4 stationsState avg: 65.4 API
Good to Moderate air: 100%of hourly readings168 readings recorded
National standing: #23of 68 stationsNational avg: 108.7 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, 14 Oct	69.3	67	73
Thu, 15 Oct	74.8	73	78
Fri, 16 Oct	74.5	72	77
Sat, 17 Oct	70.3	68	72
Sun, 18 Oct	71.3	69	73
Mon, 19 Oct	82	73	90
Tue, 20 Oct	83.2	70	90

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 Sungai Petani shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100APIBrighter cells ran hazier than the rest of this week (67 – 90 API)

Haziest hour of the week: Mon at 23:00 MYT, averaging API 90 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	67	67	67	68	68	69	69	69	69	69	70	71	70	70	69	69	69	69	69	69	70	72	72	73
Thu	73	73	73	73	73	73	73	73	74	74	75	75	76	77	77	78	78	78	77	76	75	74	73	73
Fri	73	74	74	74	75	75	75	75	75	74	74	74	74	74	74	75	76	76	77	76	75	73	73	72
Sat	72	71	71	72	71	70	70	71	71	71	71	71	71	71	71	70	69	69	68	68	69	69	70	71
Sun	72	72	73	73	73	73	72	73	72	72	72	71	70	70	70	69	69	69	69	70	71	72	73	72
Mon	73	74	75	75	75	76	77	77	78	79	79	80	83	84	85	87	88	88	89	89	89	89	89	90
Tue	90	88	88	88	90	90	90	90	89	89	88	87	85	83	81	80	79	78	77	76	75	73	72	70

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik0%0
ModerateSederhana100%168
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 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

Nearby monitoring stations around Sungai Petani

Perbandingan purata mingguan dengan stesen berhampiran

Seberang Jaya78.7 API
Moderate27 away
Kulim Hi-Tech71 API
Moderate29 away
Seberang Perai83.6 API
Moderate33 away
Minden80.3 API
Moderate35 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	67	67	67	68	68	69	69	69	69	69	70	71	70	70	69	69	69	69	69	69	70	72	72	73
Thu	73	73	73	73	73	73	73	73	74	74	75	75	76	77	77	78	78	78	77	76	75	74	73	73
Fri	73	74	74	74	75	75	75	75	75	74	74	74	74	74	74	75	76	76	77	76	75	73	73	72
Sat	72	71	71	72	71	70	70	71	71	71	71	71	71	71	71	70	69	69	68	68	69	69	70	71
Sun	72	72	73	73	73	73	72	73	72	72	72	71	70	70	70	69	69	69	69	70	71	72	73	72
Mon	73	74	75	75	75	76	77	77	78	79	79	80	83	84	85	87	88	88	89	89	89	89	89	90
Tue	90	88	88	88	90	90	90	90	89	89	88	87	85	83	81	80	79	78	77	76	75	73	72	70

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	67	67	67	68	68	69	69	69	69	69	70	71	70	70	69	69	69	69	69	69	70	72	72	73
Thu	73	73	73	73	73	73	73	73	74	74	75	75	76	77	77	78	78	78	77	76	75	74	73	73
Fri	73	74	74	74	75	75	75	75	75	74	74	74	74	74	74	75	76	76	77	76	75	73	73	72
Sat	72	71	71	72	71	70	70	71	71	71	71	71	71	71	71	70	69	69	68	68	69	69	70	71
Sun	72	72	73	73	73	73	72	73	72	72	72	71	70	70	70	69	69	69	69	70	71	72	73	72
Mon	73	74	75	75	75	76	77	77	78	79	79	80	83	84	85	87	88	88	89	89	89	89	89	90
Tue	90	88	88	88	90	90	90	90	89	89	88	87	85	83	81	80	79	78	77	76	75	73	72	70