31 Dec 2025 – 6 Jan 2026 · Indonesia · Wednesday to Tuesday, UTC+7

Indonesia weekly air quality

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

96.9Weekly mean modelled AQI · Moderate

Mean PM2.5: 34.3 µg/m³. Both means cover the selected cities hour by hour. They are not a national average or Indonesia’s official index.

+3.2 AQI compared with the previous week’s mean of 93.7.

Highest hourly estimate: 185 in Surabaya · 4 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, 31 Dec	94.6Moderate	44–164	30.7	192 / 192
Thu, 1 Jan	91.5Moderate	53–168	30.3	192 / 192
Fri, 2 Jan	95Moderate	39–164	31.7	192 / 192
Sat, 3 Jan	87.1Moderate	35–170	31.8	192 / 192
Sun, 4 Jan	102.2Unhealthy for Sensitive Groups	51–185	35.4	192 / 192
Mon, 5 Jan	105.3Unhealthy for Sensitive Groups	31–169	42.1	192 / 192
Tue, 6 Jan	102.7Unhealthy for Sensitive Groups	27–175	38	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	95	94	94	94	94	95	95	95	94	94	94	94	94	94	94	94	95	95	96	96	96	95	95	95
Thu	95	95	94	94	94	94	94	94	93	92	92	92	91	91	91	91	90	90	89	88	88	88	89	89
Fri	90	91	92	93	94	95	95	96	96	97	97	97	97	97	96	96	96	95	96	96	96	96	96	94
Sat	93	92	91	90	89	88	86	85	85	84	84	84	85	85	85	85	85	87	88	89	87	86	88	89
Sun	91	93	95	96	98	99	101	103	103	104	104	104	104	104	104	104	107	108	108	106	105	105	105	104
Mon	104	104	103	104	104	105	106	106	106	106	106	106	106	105	105	105	105	108	108	106	105	105	105	105
Tue	105	106	105	104	104	103	102	101	101	101	101	101	101	101	101	101	104	107	107	106	104	100	100	101

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
Surabaya	157Unhealthy	185	67.7	168 / 168
Bandung	147.2Unhealthy for Sensitive Groups	175	59.9	168 / 168
Jakarta	131.8Unhealthy for Sensitive Groups	168	53.2	168 / 168
Medan	97.9Moderate	154	34.3	168 / 168
Makassar	73.7Moderate	85	20.9	168 / 168
Pekanbaru	60.2Moderate	82	14.9	168 / 168
Palembang	55.9Moderate	64	12.4	168 / 168
Denpasar	51.4Moderate	72	11	168 / 168

City-hours by category

Good: 100

Moderate: 710

Unhealthy for Sensitive Groups: 263

Unhealthy: 271

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	95	94	94	94	94	95	95	95	94	94	94	94	94	94	94	94	95	95	96	96	96	95	95	95
Thu	95	95	94	94	94	94	94	94	93	92	92	92	91	91	91	91	90	90	89	88	88	88	89	89
Fri	90	91	92	93	94	95	95	96	96	97	97	97	97	97	96	96	96	95	96	96	96	96	96	94
Sat	93	92	91	90	89	88	86	85	85	84	84	84	85	85	85	85	85	87	88	89	87	86	88	89
Sun	91	93	95	96	98	99	101	103	103	104	104	104	104	104	104	104	107	108	108	106	105	105	105	104
Mon	104	104	103	104	104	105	106	106	106	106	106	106	106	105	105	105	105	108	108	106	105	105	105	105
Tue	105	106	105	104	104	103	102	101	101	101	101	101	101	101	101	101	104	107	107	106	104	100	100	101

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	95	94	94	94	94	95	95	95	94	94	94	94	94	94	94	94	95	95	96	96	96	95	95	95
Thu	95	95	94	94	94	94	94	94	93	92	92	92	91	91	91	91	90	90	89	88	88	88	89	89
Fri	90	91	92	93	94	95	95	96	96	97	97	97	97	97	96	96	96	95	96	96	96	96	96	94
Sat	93	92	91	90	89	88	86	85	85	84	84	84	85	85	85	85	85	87	88	89	87	86	88	89
Sun	91	93	95	96	98	99	101	103	103	104	104	104	104	104	104	104	107	108	108	106	105	105	105	104
Mon	104	104	103	104	104	105	106	106	106	106	106	106	106	105	105	105	105	108	108	106	105	105	105	105
Tue	105	106	105	104	104	103	102	101	101	101	101	101	101	101	101	101	104	107	107	106	104	100	100	101

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	95	94	94	94	94	95	95	95	94	94	94	94	94	94	94	94	95	95	96	96	96	95	95	95
Thu	95	95	94	94	94	94	94	94	93	92	92	92	91	91	91	91	90	90	89	88	88	88	89	89
Fri	90	91	92	93	94	95	95	96	96	97	97	97	97	97	96	96	96	95	96	96	96	96	96	94
Sat	93	92	91	90	89	88	86	85	85	84	84	84	85	85	85	85	85	87	88	89	87	86	88	89
Sun	91	93	95	96	98	99	101	103	103	104	104	104	104	104	104	104	107	108	108	106	105	105	105	104
Mon	104	104	103	104	104	105	106	106	106	106	106	106	106	105	105	105	105	108	108	106	105	105	105	105
Tue	105	106	105	104	104	103	102	101	101	101	101	101	101	101	101	101	104	107	107	106	104	100	100	101