21 – 27 Oct 2026 · Malaysia

Kuala Terengganu weekly air quality

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

70.3Weekly mean AQI · Moderate

Official DOE API mean: 59.5. 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

146 eligible observations · 0 excluded.

-23.9 AQI compared with the previous week’s eligible mean of 94.2.

Peak AQI: 93 at Kuala Terengganu · 21 Oct 2026, 00:00 (UTC+8).

Daily US AQI (PM2.5)

Low 48High 93AQI

21 Oct27 Oct

27 OctDaily mean · Peak 5454Avg AQI

Based on 2 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	78.9Moderate	93	24 / 0
2026-10-22	83.9Moderate	90	24 / 0
2026-10-23	66.1Moderate	70	24 / 0
2026-10-24	55.8Moderate	67	24 / 0
2026-10-25	77.2Moderate	87	24 / 0
2026-10-26	61.3Moderate	71	24 / 0
2026-10-27	54Moderate	54	2 / 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	93	90	88	87	86	86	84	84	81	80	78	78	77	74	72	71	70	68	68	67	72	78	80	81
2026-10-22	83	86	87	87	88	88	88	88	88	88	90	90	87	87	86	86	86	83	81	81	75	70	70	70
2026-10-23	70	68	68	68	68	68	67	67	65	65	65	65	65	67	67	65	65	67	65	65	65	65	64	62
2026-10-24	61	59	58	57	56	55	55	54	54	53	52	52	51	48	48	51	53	53	55	59	61	62	65	67
2026-10-25	68	68	70	71	71	72	72	74	75	75	77	80	83	84	86	87	87	87	84	81	78	77	74	72
2026-10-26	71	70	70	70	68	68	68	67	67	67	65	62	59	57	55	54	53	53	53	54	55	55	55	54
2026-10-27	54	54	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Observation categories

Good: 2

Moderate: 144

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

Kuala Terengganu air quality.
Weekly station review.

21 – 27 Oct 20267 days · Terengganu

Laporan mingguan Indeks Pencemaran Udara (IPU) bagi stesen Kuala Terengganu, Terengganu

During the week of 21 – 27 Oct 2026, air quality at Kuala Terengganu averaged an Air Pollutant Index (API) of 59.5 (Moderate). Readings peaked at 76.

Station weekly average

59.5API

Moderate · Sederhana

Daily averages44.5 – 69.8 APIWed → Tue

Explore the week

Week's peak reading: 76ModeratePeak during 7-day window
Rank in Terengganu: #2of 4 stationsState avg: 69.1 API
Good to Moderate air: 100%of hourly readings146 readings recorded
National standing: #18of 68 stationsNational avg: 84.2 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	66.4	58	76
Thu, 22 Oct	69.8	60	74
Fri, 23 Oct	57.6	55	60
Sat, 24 Oct	46.9	36	58
Sun, 25 Oct	65.3	59	72
Mon, 26 Oct	52.3	43	61
Tue, 27 Oct	44.5	44	45

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 Kuala Terengganu shows local patterns like traffic peaks and afternoon haze accumulation.

0255075100APIBrighter cells ran hazier than the rest of this week (36 – 76 API)

Haziest hour of the week: Wed at 00:00 MYT, averaging API 76 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	76	74	73	72	71	71	70	70	68	67	66	66	65	63	62	61	60	59	59	58	62	66	67	68
Thu	69	71	72	72	73	73	73	73	73	73	74	74	72	72	71	71	71	69	68	68	64	60	60	60
Fri	60	59	59	59	59	59	58	58	57	57	57	57	57	58	58	57	57	58	57	57	57	57	56	55
Sat	54	53	52	51	50	48	47	45	44	42	40	40	39	36	36	38	42	43	48	53	54	55	57	58
Sun	59	59	60	61	61	62	62	63	64	64	65	67	69	70	71	72	72	72	70	68	66	65	63	62
Mon	61	60	60	60	59	59	59	58	58	58	57	55	53	51	48	44	43	43	43	44	46	46	46	45
Tue	45	44	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

How the readings split

Pecahan bacaan mengikut kategori IPU

GoodBaik18%27
ModerateSederhana82%119
UnhealthyTidak Sihat0%0
Very UnhealthySangat Tidak Sihat0%0
HazardousBerbahaya0%0

Based on 146 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 Kuala Terengganu

Perbandingan purata mingguan dengan stesen berhampiran

Besut48 API
Good83 away
Paka104.7 API
Unhealthy86 away
Kemaman64.2 API
Moderate121 away
Tanah Merah55.5 API
Moderate123 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	76	74	73	72	71	71	70	70	68	67	66	66	65	63	62	61	60	59	59	58	62	66	67	68
Thu	69	71	72	72	73	73	73	73	73	73	74	74	72	72	71	71	71	69	68	68	64	60	60	60
Fri	60	59	59	59	59	59	58	58	57	57	57	57	57	58	58	57	57	58	57	57	57	57	56	55
Sat	54	53	52	51	50	48	47	45	44	42	40	40	39	36	36	38	42	43	48	53	54	55	57	58
Sun	59	59	60	61	61	62	62	63	64	64	65	67	69	70	71	72	72	72	70	68	66	65	63	62
Mon	61	60	60	60	59	59	59	58	58	58	57	55	53	51	48	44	43	43	43	44	46	46	46	45
Tue	45	44	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

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	76	74	73	72	71	71	70	70	68	67	66	66	65	63	62	61	60	59	59	58	62	66	67	68
Thu	69	71	72	72	73	73	73	73	73	73	74	74	72	72	71	71	71	69	68	68	64	60	60	60
Fri	60	59	59	59	59	59	58	58	57	57	57	57	57	58	58	57	57	58	57	57	57	57	56	55
Sat	54	53	52	51	50	48	47	45	44	42	40	40	39	36	36	38	42	43	48	53	54	55	57	58
Sun	59	59	60	61	61	62	62	63	64	64	65	67	69	70	71	72	72	72	70	68	66	65	63	62
Mon	61	60	60	60	59	59	59	58	58	58	57	55	53	51	48	44	43	43	43	44	46	46	46	45
Tue	45	44	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—