30 Sep – 6 Oct 2026 · Malaysia

Miri weekly air quality

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

76.4Weekly mean AQI · Moderate

Official DOE API mean: 63.9. 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

167 eligible observations · 0 excluded.

-11.9 AQI compared with the previous week’s eligible mean of 88.3.

Peak AQI: 115 at Miri · 5 Oct 2026, 17:00 (UTC+8).

Daily US AQI (PM2.5)

Low 53High 115AQI

30 Sept6 Oct

6 OctDaily mean · Peak 10189.4Avg AQI

Based on 23 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
2026-09-30	57.6Moderate	58	24 / 0
2026-10-01	55.6Moderate	58	24 / 0
2026-10-02	57.8Moderate	62	24 / 0
2026-10-03	71.5Moderate	93	24 / 0
2026-10-04	97.4Moderate	103	24 / 0
2026-10-05	106.3Unhealthy for Sensitive Groups	115	24 / 0
2026-10-06	89.4Moderate	101	23 / 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
2026-09-30	55	56	57	58	58	58	58	58	58	57	58	58	58	58	58	58	58	58	58	58	58	57	57	58
2026-10-01	58	57	57	57	57	58	58	57	57	56	56	56	55	55	55	55	55	55	54	53	53	53	53	54
2026-10-02	53	54	54	54	54	54	55	55	55	56	56	58	58	59	59	61	61	61	62	61	62	62	62	61
2026-10-03	61	62	62	62	62	61	61	62	62	70	71	71	72	72	72	74	75	77	78	81	81	83	90	93
2026-10-04	94	94	96	97	97	99	101	101	101	93	93	94	94	96	96	96	97	97	101	101	103	103	97	97
2026-10-05	99	101	103	103	103	103	105	105	105	107	109	107	107	105	105	105	109	115	113	113	111	109	107	103
2026-10-06	101	99	97	96	96	94	94	94	93	93	90	90	90	91	90	90	87	80	80	78	78	78	78	—

Observation categories

Good: 0

Moderate: 136

Unhealthy for Sensitive Groups: 31

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

Miri air quality.
Weekly station review.

30 Sep – 6 Oct 20267 days · Sarawak

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen Miri, Sarawak

During the week of 30 Sep – 6 Oct 2026, air quality at Miri averaged an Air Pollutant Index (API) of 63.9 (Moderate). Readings peaked at 88.

Station weekly average

63.9API

Moderate · Sederhana

Daily averages48.1 – 83.7 APIWed → Tue

Explore the week

Week's peak reading: 88ModeratePeak during 7-day window
Rank in Sarawak: #3of 13 stationsState avg: 73.2 API
Good to Moderate air: 100%of hourly readings167 readings recorded
National standing: #14of 68 stationsNational avg: 83.9 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, 30 Sep	51.6	48	52
Thu, 1 Oct	48.1	42	52
Fri, 2 Oct	50.3	43	55
Sat, 3 Oct	61.4	54	76
Sun, 4 Oct	79	76	82
Mon, 5 Oct	83.7	80	88
Tue, 6 Oct	73.7	66	81

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

0255075100APIBrighter cells ran hazier than the rest of this week (42 – 88 API)

Haziest hour of the week: Mon at 17:00 MYT, averaging API 88 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	48	50	51	52	52	52	52	52	52	51	52	52	52	52	52	52	52	52	52	52	52	51	51	52
Thu	52	51	51	51	51	52	52	51	51	50	49	49	48	47	48	47	48	47	44	43	42	43	43	44
Fri	43	44	44	45	45	45	46	46	48	50	50	52	52	53	53	54	54	54	55	54	55	55	55	54
Sat	54	55	55	55	55	54	54	55	55	60	61	61	62	62	62	63	64	65	66	68	68	69	74	76
Sun	77	77	78	79	79	80	81	81	81	76	76	77	77	78	78	78	79	79	81	81	82	82	79	79
Mon	80	81	82	82	82	82	83	83	83	84	85	84	84	83	83	83	85	88	87	87	86	85	84	82
Tue	81	80	79	78	78	77	77	77	76	76	74	74	74	75	74	74	72	67	67	66	66	66	66	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik17%28
ModerateSederhana83%139
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 167 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 Miri

Perbandingan purata mingguan dengan stesen berhampiran

ILP Miri57.4 API
Moderate8.5 away
Limbang52.1 API
Moderate117 away
Samalaju71.1 API
Moderate125 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	48	50	51	52	52	52	52	52	52	51	52	52	52	52	52	52	52	52	52	52	52	51	51	52
Thu	52	51	51	51	51	52	52	51	51	50	49	49	48	47	48	47	48	47	44	43	42	43	43	44
Fri	43	44	44	45	45	45	46	46	48	50	50	52	52	53	53	54	54	54	55	54	55	55	55	54
Sat	54	55	55	55	55	54	54	55	55	60	61	61	62	62	62	63	64	65	66	68	68	69	74	76
Sun	77	77	78	79	79	80	81	81	81	76	76	77	77	78	78	78	79	79	81	81	82	82	79	79
Mon	80	81	82	82	82	82	83	83	83	84	85	84	84	83	83	83	85	88	87	87	86	85	84	82
Tue	81	80	79	78	78	77	77	77	76	76	74	74	74	75	74	74	72	67	67	66	66	66	66	—

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	48	50	51	52	52	52	52	52	52	51	52	52	52	52	52	52	52	52	52	52	52	51	51	52
Thu	52	51	51	51	51	52	52	51	51	50	49	49	48	47	48	47	48	47	44	43	42	43	43	44
Fri	43	44	44	45	45	45	46	46	48	50	50	52	52	53	53	54	54	54	55	54	55	55	55	54
Sat	54	55	55	55	55	54	54	55	55	60	61	61	62	62	62	63	64	65	66	68	68	69	74	76
Sun	77	77	78	79	79	80	81	81	81	76	76	77	77	78	78	78	79	79	81	81	82	82	79	79
Mon	80	81	82	82	82	82	83	83	83	84	85	84	84	83	83	83	85	88	87	87	86	85	84	82
Tue	81	80	79	78	78	77	77	77	76	76	74	74	74	75	74	74	72	67	67	66	66	66	66	—