21 – 27 Oct 2026 · Malaysia

Miri weekly air quality

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

77.4Weekly mean AQI · Moderate

Official DOE API mean: 64.4. 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

149 eligible observations · 0 excluded.

-1.5 AQI compared with the previous week’s eligible mean of 78.9.

Peak AQI: 107 at Miri · 26 Oct 2026, 06:00 (UTC+8).

Daily US AQI (PM2.5)

Low 51High 107AQI

21 Oct27 Oct

27 OctDaily mean · Peak 8381.4Avg AQI

Based on 5 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	53.7Moderate	57	24 / 0
2026-10-22	61.1Moderate	68	24 / 0
2026-10-23	74.7Moderate	86	24 / 0
2026-10-24	90.7Moderate	97	24 / 0
2026-10-25	83.4Moderate	97	24 / 0
2026-10-26	100.2Unhealthy for Sensitive Groups	107	24 / 0
2026-10-27	81.4Moderate	83	5 / 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	51	51	52	53	53	53	53	53	53	53	52	52	53	54	54	55	55	55	55	55	55	55	56	57
2026-10-22	57	57	57	57	57	57	57	58	58	58	59	61	61	62	62	64	64	64	65	65	65	67	67	68
2026-10-23	68	68	68	70	70	70	70	71	71	72	72	72	71	72	74	75	77	78	81	83	84	84	86	86
2026-10-24	87	87	88	88	88	90	90	91	91	93	96	97	97	97	97	96	93	91	88	87	87	87	86	84
2026-10-25	84	83	83	83	83	83	81	81	80	78	77	77	75	77	77	78	81	84	87	90	93	94	96	97
2026-10-26	99	101	103	105	105	105	107	107	107	107	107	107	107	107	105	103	99	96	93	90	88	87	86	84
2026-10-27	83	83	83	80	78	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 0

Moderate: 134

Unhealthy for Sensitive Groups: 15

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.

21 – 27 Oct 20267 days · Sarawak

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

During the week of 21 – 27 Oct 2026, air quality at Miri averaged an Air Pollutant Index (API) of 64.4 (Moderate). Readings peaked at 84.

Station weekly average

64.4API

Moderate · Sederhana

Daily averages44.1 – 80.1 APIWed → Tue

Explore the week

Week's peak reading: 84ModeratePeak during 7-day window
Rank in Sarawak: #3of 13 stationsState avg: 87.3 API
Good to Moderate air: 100%of hourly readings149 readings recorded
National standing: #21of 68 stationsNational avg: 83.6 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, 21 Oct	44.1	39	51
Thu, 22 Oct	54.1	51	59
Fri, 23 Oct	63.5	59	71
Sat, 24 Oct	74.6	70	79
Sun, 25 Oct	69.5	64	79
Mon, 26 Oct	80.1	70	84
Tue, 27 Oct	68	66	69

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 (39 – 84 API)

Haziest hour of the week: Mon at 06:00 MYT, averaging API 84 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	39	39	41	42	42	42	43	42	42	42	41	41	42	44	45	46	46	47	47	48	48	48	50	51
Thu	51	51	51	51	51	51	51	52	52	52	53	54	54	55	55	56	56	56	57	57	57	58	58	59
Fri	59	59	59	60	60	60	60	61	61	62	62	62	61	62	63	64	65	66	68	69	70	70	71	71
Sat	72	72	73	73	73	74	74	75	75	76	78	79	79	79	79	78	76	75	73	72	72	72	71	70
Sun	70	69	69	69	69	69	68	68	67	66	65	65	64	65	65	66	68	70	72	74	76	77	78	79
Mon	80	81	82	83	83	83	84	84	84	84	84	84	84	84	83	82	80	78	76	74	73	72	71	70
Tue	69	69	69	67	66	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik15%23
ModerateSederhana85%126
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 149 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 Miri62.9 API
Moderate8.5 away
Limbang57.3 API
Moderate117 away
Samalaju77.4 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	39	39	41	42	42	42	43	42	42	42	41	41	42	44	45	46	46	47	47	48	48	48	50	51
Thu	51	51	51	51	51	51	51	52	52	52	53	54	54	55	55	56	56	56	57	57	57	58	58	59
Fri	59	59	59	60	60	60	60	61	61	62	62	62	61	62	63	64	65	66	68	69	70	70	71	71
Sat	72	72	73	73	73	74	74	75	75	76	78	79	79	79	79	78	76	75	73	72	72	72	71	70
Sun	70	69	69	69	69	69	68	68	67	66	65	65	64	65	65	66	68	70	72	74	76	77	78	79
Mon	80	81	82	83	83	83	84	84	84	84	84	84	84	84	83	82	80	78	76	74	73	72	71	70
Tue	69	69	69	67	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	39	39	41	42	42	42	43	42	42	42	41	41	42	44	45	46	46	47	47	48	48	48	50	51
Thu	51	51	51	51	51	51	51	52	52	52	53	54	54	55	55	56	56	56	57	57	57	58	58	59
Fri	59	59	59	60	60	60	60	61	61	62	62	62	61	62	63	64	65	66	68	69	70	70	71	71
Sat	72	72	73	73	73	74	74	75	75	76	78	79	79	79	79	78	76	75	73	72	72	72	71	70
Sun	70	69	69	69	69	69	68	68	67	66	65	65	64	65	65	66	68	70	72	74	76	77	78	79
Mon	80	81	82	83	83	83	84	84	84	84	84	84	84	84	83	82	80	78	76	74	73	72	71	70
Tue	69	69	69	67	66	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—