10 Regions in Indonesia with the Cleanest Air This Afternoon (26/11)

Madiun Regency's air quality this afternoon is the cleanest in Indonesia. Based on the air quality index version of the Ministry of Environment and Forestry (KLHK), Madiun Regency had a score of 13 on Wednesday (26/11/2025) at 4:00 PM WIB.

At that time, Madiun Regency's air quality was categorized as good, meaning the pollutant levels in Madiun Regency's air were very minimal. Furthermore, South Lampung Regency took second place with an air quality index of 15. Next, West Kutai Regency was in third place with an air quality index of 23.

Below is the complete list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Wednesday, November 26, 2025, at 4:00 PM WIB.

1. Madiun Regency (East Java): 13
2. South Lampung Regency (Lampung): 15
3. West Kutai Regency (East Kalimantan): 23
4. Mataram (West Nusa Tenggara): 25
5. South Hulu Sungai Regency (South Kalimantan): 26
6. Bontang (East Kalimantan): 28
7. Asahan Regency (North Sumatra): 29
8. Nagan Raya Regency (Aceh): 31
9. Sambas Regency (West Kalimantan): 32
10. Musi Rawas Regency (South Sumatra): 34

(Read: Floods Dominated Natural Disasters in Indonesia in Early 2024)

Based on KLHK Regulation No. 14 of 2020 concerning the Air Pollutant Standard Index, KLHK implements the following air quality index classification.

• 0-50: good
• 51-100: moderate
• 101-200: unhealthy
• 201-300: very unhealthy
• 300+: hazardous

This means that on Wednesday (26/11/2025) at 4:00 PM WIB, all these cities had good air quality.

(Read: Floods, Natural Disasters That Frequently Hit Indonesia as of September 2025)