24 – 30 Sep 2025 · Indonesia · Wednesday to Tuesday, UTC+7

Indonesia weekly air quality

Modelled US AQI · 8 cities · CAMS via Open-Meteo

103.8Weekly mean modelled AQI · Unhealthy for Sensitive Groups

Mean PM2.5: 40.3 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Indonesia’s official index.

+2.6 AQI compared with the previous week’s mean of 101.2.

Highest hourly estimate: 241 in Jakarta · 25 Sept, 18:00 GMT+7.

1344 of 1344 city-hours have a modelled AQI. These are estimates for roughly 45 km model grid cells, not monitoring-station measurements. How this report is made

Daily modelled US AQI

Day	Mean AQI	Low–high	Mean PM2.5 (µg/m³)	City-hours
Wed, 24 Sep	114.5Unhealthy for Sensitive Groups	55–233	47.3	192 / 192
Thu, 25 Sep	111.8Unhealthy for Sensitive Groups	59–241	43.6	192 / 192
Fri, 26 Sep	104.7Unhealthy for Sensitive Groups	53–212	43.1	192 / 192
Sat, 27 Sep	105.3Unhealthy for Sensitive Groups	51–203	42.7	192 / 192
Sun, 28 Sep	96.5Moderate	53–187	32.8	192 / 192
Mon, 29 Sep	96Moderate	52–178	37.9	192 / 192
Tue, 30 Sep	98Moderate	52–222	34.9	192 / 192

Hourly means (UTC+7)

Each cell averages the selected cities’ modelled AQI for that hour.

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
Wed	108	109	109	110	110	111	111	111	111	111	111	111	111	111	112	114	124	129	132	130	124	116	113	113
Thu	113	113	113	112	112	112	112	112	112	111	112	111	111	111	110	113	115	116	116	115	112	109	107	106
Fri	105	104	103	103	103	102	102	101	102	102	102	102	102	102	103	106	112	115	115	109	105	105	105	105
Sat	106	106	106	106	106	106	105	105	105	106	106	106	106	106	106	105	105	107	107	106	104	103	103	103
Sun	103	103	102	101	101	100	100	99	98	97	96	96	95	95	95	94	94	93	93	93	93	93	92	92
Mon	92	92	92	92	92	93	93	94	94	95	95	96	96	96	97	100	102	102	101	99	99	98	98	99
Tue	99	99	99	99	99	99	99	98	98	97	97	97	97	96	96	96	100	102	102	101	99	96	95	95

Cities by modelled US AQI

Sorted by weekly mean. Each city is a single model grid cell near its centre.

City	Mean AQI	Peak AQI	Mean PM2.5 (µg/m³)	Hours
Jakarta	184Unhealthy	241	94.8	168 / 168
Bandung	177.2Unhealthy	222	89.4	168 / 168
Surabaya	101Unhealthy for Sensitive Groups	204	31.2	168 / 168
Medan	90.4Moderate	112	30.9	168 / 168
Makassar	85.9Moderate	98	27.9	168 / 168
Pekanbaru	71.7Moderate	92	20	168 / 168
Palembang	63.4Moderate	81	15.9	168 / 168
Denpasar	57.1Moderate	67	12.6	168 / 168

City-hours by category

Good: 0

Moderate: 928

Unhealthy for Sensitive Groups: 64

Unhealthy: 321

Very Unhealthy: 31

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

How this report is made

Open-Meteo provides hourly estimates from the Copernicus Atmosphere Monitoring Service (CAMS) global model at roughly 45 km resolution. We use the grid cell nearest each city’s centre. Nearby places may share a cell, and local pollution can differ.

The AQI is the provider’s modelled US AQI across pollutants, one value per city per hour. Weekly, daily and hourly means average those values across the selected cities. PM2.5 is a concentration in µg/m³. These figures use a different basis from the measured PM2.5-derived AQI in the Malaysia and Singapore reports.

Days and hours use UTC+7, Western Indonesia Time. Denpasar and Makassar are on UTC+8, so their local hours appear one hour earlier here. The report includes past model hours only, never forecasts. The previous-week comparison appears only when at least 90% of that week’s city-hours are available.

For official local readings and advice, visit BMKG air-quality information. Air-quality data: Open-Meteo and CAMS, licensed under CC BY 4.0. Haze Monitor is independent of these providers and local authorities.

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
Wed	108	109	109	110	110	111	111	111	111	111	111	111	111	111	112	114	124	129	132	130	124	116	113	113
Thu	113	113	113	112	112	112	112	112	112	111	112	111	111	111	110	113	115	116	116	115	112	109	107	106
Fri	105	104	103	103	103	102	102	101	102	102	102	102	102	102	103	106	112	115	115	109	105	105	105	105
Sat	106	106	106	106	106	106	105	105	105	106	106	106	106	106	106	105	105	107	107	106	104	103	103	103
Sun	103	103	102	101	101	100	100	99	98	97	96	96	95	95	95	94	94	93	93	93	93	93	92	92
Mon	92	92	92	92	92	93	93	94	94	95	95	96	96	96	97	100	102	102	101	99	99	98	98	99
Tue	99	99	99	99	99	99	99	98	98	97	97	97	97	96	96	96	100	102	102	101	99	96	95	95

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
Wed	108	109	109	110	110	111	111	111	111	111	111	111	111	111	112	114	124	129	132	130	124	116	113	113
Thu	113	113	113	112	112	112	112	112	112	111	112	111	111	111	110	113	115	116	116	115	112	109	107	106
Fri	105	104	103	103	103	102	102	101	102	102	102	102	102	102	103	106	112	115	115	109	105	105	105	105
Sat	106	106	106	106	106	106	105	105	105	106	106	106	106	106	106	105	105	107	107	106	104	103	103	103
Sun	103	103	102	101	101	100	100	99	98	97	96	96	95	95	95	94	94	93	93	93	93	93	92	92
Mon	92	92	92	92	92	93	93	94	94	95	95	96	96	96	97	100	102	102	101	99	99	98	98	99
Tue	99	99	99	99	99	99	99	98	98	97	97	97	97	96	96	96	100	102	102	101	99	96	95	95

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
Wed	108	109	109	110	110	111	111	111	111	111	111	111	111	111	112	114	124	129	132	130	124	116	113	113
Thu	113	113	113	112	112	112	112	112	112	111	112	111	111	111	110	113	115	116	116	115	112	109	107	106
Fri	105	104	103	103	103	102	102	101	102	102	102	102	102	102	103	106	112	115	115	109	105	105	105	105
Sat	106	106	106	106	106	106	105	105	105	106	106	106	106	106	106	105	105	107	107	106	104	103	103	103
Sun	103	103	102	101	101	100	100	99	98	97	96	96	95	95	95	94	94	93	93	93	93	93	92	92
Mon	92	92	92	92	92	93	93	94	94	95	95	96	96	96	97	100	102	102	101	99	99	98	98	99
Tue	99	99	99	99	99	99	99	98	98	97	97	97	97	96	96	96	100	102	102	101	99	96	95	95