1 – 7 Oct 2025 · Indonesia · Wednesday to Tuesday, UTC+7

Indonesia weekly air quality

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

108.7Weekly mean modelled AQI · Unhealthy for Sensitive Groups

Mean PM2.5: 44.4 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Indonesia’s official index.

+4.9 AQI compared with the previous week’s mean of 103.8.

Highest hourly estimate: 228 in Jakarta · 4 Oct, 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, 1 Oct	100.6Unhealthy for Sensitive Groups	52–179	38.5	192 / 192
Thu, 2 Oct	103Unhealthy for Sensitive Groups	40–169	38.7	192 / 192
Fri, 3 Oct	112Unhealthy for Sensitive Groups	37–224	49.9	192 / 192
Sat, 4 Oct	113Unhealthy for Sensitive Groups	56–228	46.3	192 / 192
Sun, 5 Oct	114.1Unhealthy for Sensitive Groups	58–223	49	192 / 192
Mon, 6 Oct	113.2Unhealthy for Sensitive Groups	58–203	45.3	192 / 192
Tue, 7 Oct	105.2Unhealthy for Sensitive Groups	32–188	43	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	96	96	97	98	99	100	101	101	102	102	102	102	102	102	102	102	101	102	101	101	101	102	103	104
Thu	104	105	105	105	105	105	105	104	104	103	103	102	102	102	101	101	102	104	104	102	101	101	101	102
Fri	103	104	105	106	107	107	107	107	109	110	110	111	112	112	113	116	118	121	125	123	119	115	115	115
Sat	115	114	113	112	112	112	112	112	112	111	111	111	111	111	111	111	114	119	121	120	116	113	111	111
Sun	111	111	112	112	113	113	113	113	114	114	114	114	114	114	114	114	117	120	120	118	114	113	114	114
Mon	114	115	115	115	115	115	114	114	113	113	113	113	113	113	112	112	113	116	117	114	111	111	110	109
Tue	108	107	106	105	104	103	102	101	101	102	102	102	102	102	106	109	111	113	112	110	107	103	103	104

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	179.9Unhealthy	228	95.5	168 / 168
Bandung	172.6Unhealthy	198	89.6	168 / 168
Surabaya	141.6Unhealthy for Sensitive Groups	224	60.4	168 / 168
Medan	112.1Unhealthy for Sensitive Groups	145	39.8	168 / 168
Makassar	86.1Moderate	95	27.8	168 / 168
Palembang	61Moderate	81	14.6	168 / 168
Pekanbaru	58.8Moderate	74	14.1	168 / 168
Denpasar	57.7Moderate	64	13.2	168 / 168

City-hours by category

Good: 34

Moderate: 710

Unhealthy for Sensitive Groups: 169

Unhealthy: 408

Very Unhealthy: 23

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	96	96	97	98	99	100	101	101	102	102	102	102	102	102	102	102	101	102	101	101	101	102	103	104
Thu	104	105	105	105	105	105	105	104	104	103	103	102	102	102	101	101	102	104	104	102	101	101	101	102
Fri	103	104	105	106	107	107	107	107	109	110	110	111	112	112	113	116	118	121	125	123	119	115	115	115
Sat	115	114	113	112	112	112	112	112	112	111	111	111	111	111	111	111	114	119	121	120	116	113	111	111
Sun	111	111	112	112	113	113	113	113	114	114	114	114	114	114	114	114	117	120	120	118	114	113	114	114
Mon	114	115	115	115	115	115	114	114	113	113	113	113	113	113	112	112	113	116	117	114	111	111	110	109
Tue	108	107	106	105	104	103	102	101	101	102	102	102	102	102	106	109	111	113	112	110	107	103	103	104

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	96	96	97	98	99	100	101	101	102	102	102	102	102	102	102	102	101	102	101	101	101	102	103	104
Thu	104	105	105	105	105	105	105	104	104	103	103	102	102	102	101	101	102	104	104	102	101	101	101	102
Fri	103	104	105	106	107	107	107	107	109	110	110	111	112	112	113	116	118	121	125	123	119	115	115	115
Sat	115	114	113	112	112	112	112	112	112	111	111	111	111	111	111	111	114	119	121	120	116	113	111	111
Sun	111	111	112	112	113	113	113	113	114	114	114	114	114	114	114	114	117	120	120	118	114	113	114	114
Mon	114	115	115	115	115	115	114	114	113	113	113	113	113	113	112	112	113	116	117	114	111	111	110	109
Tue	108	107	106	105	104	103	102	101	101	102	102	102	102	102	106	109	111	113	112	110	107	103	103	104

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	96	96	97	98	99	100	101	101	102	102	102	102	102	102	102	102	101	102	101	101	101	102	103	104
Thu	104	105	105	105	105	105	105	104	104	103	103	102	102	102	101	101	102	104	104	102	101	101	101	102
Fri	103	104	105	106	107	107	107	107	109	110	110	111	112	112	113	116	118	121	125	123	119	115	115	115
Sat	115	114	113	112	112	112	112	112	112	111	111	111	111	111	111	111	114	119	121	120	116	113	111	111
Sun	111	111	112	112	113	113	113	113	114	114	114	114	114	114	114	114	117	120	120	118	114	113	114	114
Mon	114	115	115	115	115	115	114	114	113	113	113	113	113	113	112	112	113	116	117	114	111	111	110	109
Tue	108	107	106	105	104	103	102	101	101	102	102	102	102	102	106	109	111	113	112	110	107	103	103	104