21 – 27 Jan 2026 · Indonesia · Wednesday to Tuesday, UTC+7

Indonesia weekly air quality

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

86Weekly mean modelled AQI · Moderate

Mean PM2.5: 27.3 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Indonesia’s official index.

+4.1 AQI compared with the previous week’s mean of 81.9.

Highest hourly estimate: 159 in Jakarta · 25 Jan, 17:00 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, 21 Jan	79.8Moderate	30–153	24.3	192 / 192
Thu, 22 Jan	83.7Moderate	50–158	26	192 / 192
Fri, 23 Jan	78.8Moderate	51–151	23	192 / 192
Sat, 24 Jan	77.5Moderate	40–123	25.7	192 / 192
Sun, 25 Jan	90.7Moderate	38–159	32	192 / 192
Mon, 26 Jan	98.3Moderate	38–158	33.5	192 / 192
Tue, 27 Jan	93.1Moderate	43–157	26.9	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	88	87	85	84	82	81	80	79	78	77	77	77	77	77	77	77	77	80	81	80	78	78	78	79
Thu	80	80	81	82	82	83	83	83	83	84	84	84	84	85	85	85	86	86	86	85	85	85	84	84
Fri	83	83	82	82	81	81	80	80	79	79	78	78	78	77	77	76	76	77	78	78	78	77	77	77
Sat	77	77	77	77	77	78	78	79	79	79	78	78	78	77	77	77	77	77	77	77	76	77	78	80
Sun	82	83	85	86	87	88	88	89	89	90	90	90	90	90	91	91	93	97	101	101	98	95	93	93
Mon	94	94	95	96	96	97	97	97	98	98	98	99	99	99	99	100	102	102	103	102	101	99	99	98
Tue	98	97	97	97	96	96	95	94	94	93	93	93	93	93	93	93	92	92	91	91	91	90	88	87

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	124.3Unhealthy for Sensitive Groups	159	47.2	168 / 168
Medan	115.6Unhealthy for Sensitive Groups	158	41.1	168 / 168
Bandung	110.9Unhealthy for Sensitive Groups	155	39.3	168 / 168
Surabaya	80.3Moderate	98	24.9	168 / 168
Denpasar	72Moderate	121	20.5	168 / 168
Makassar	69.6Moderate	80	19.4	168 / 168
Pekanbaru	64.7Moderate	73	16.4	168 / 168
Palembang	50.4Moderate	64	10	168 / 168

City-hours by category

Good: 113

Moderate: 882

Unhealthy for Sensitive Groups: 243

Unhealthy: 106

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

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	88	87	85	84	82	81	80	79	78	77	77	77	77	77	77	77	77	80	81	80	78	78	78	79
Thu	80	80	81	82	82	83	83	83	83	84	84	84	84	85	85	85	86	86	86	85	85	85	84	84
Fri	83	83	82	82	81	81	80	80	79	79	78	78	78	77	77	76	76	77	78	78	78	77	77	77
Sat	77	77	77	77	77	78	78	79	79	79	78	78	78	77	77	77	77	77	77	77	76	77	78	80
Sun	82	83	85	86	87	88	88	89	89	90	90	90	90	90	91	91	93	97	101	101	98	95	93	93
Mon	94	94	95	96	96	97	97	97	98	98	98	99	99	99	99	100	102	102	103	102	101	99	99	98
Tue	98	97	97	97	96	96	95	94	94	93	93	93	93	93	93	93	92	92	91	91	91	90	88	87

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	88	87	85	84	82	81	80	79	78	77	77	77	77	77	77	77	77	80	81	80	78	78	78	79
Thu	80	80	81	82	82	83	83	83	83	84	84	84	84	85	85	85	86	86	86	85	85	85	84	84
Fri	83	83	82	82	81	81	80	80	79	79	78	78	78	77	77	76	76	77	78	78	78	77	77	77
Sat	77	77	77	77	77	78	78	79	79	79	78	78	78	77	77	77	77	77	77	77	76	77	78	80
Sun	82	83	85	86	87	88	88	89	89	90	90	90	90	90	91	91	93	97	101	101	98	95	93	93
Mon	94	94	95	96	96	97	97	97	98	98	98	99	99	99	99	100	102	102	103	102	101	99	99	98
Tue	98	97	97	97	96	96	95	94	94	93	93	93	93	93	93	93	92	92	91	91	91	90	88	87

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	88	87	85	84	82	81	80	79	78	77	77	77	77	77	77	77	77	80	81	80	78	78	78	79
Thu	80	80	81	82	82	83	83	83	83	84	84	84	84	85	85	85	86	86	86	85	85	85	84	84
Fri	83	83	82	82	81	81	80	80	79	79	78	78	78	77	77	76	76	77	78	78	78	77	77	77
Sat	77	77	77	77	77	78	78	79	79	79	78	78	78	77	77	77	77	77	77	77	76	77	78	80
Sun	82	83	85	86	87	88	88	89	89	90	90	90	90	90	91	91	93	97	101	101	98	95	93	93
Mon	94	94	95	96	96	97	97	97	98	98	98	99	99	99	99	100	102	102	103	102	101	99	99	98
Tue	98	97	97	97	96	96	95	94	94	93	93	93	93	93	93	93	92	92	91	91	91	90	88	87