10 Regions in Indonesia with the Cleanest Air This Afternoon (25/11)

The air quality in West Kutai Regency is the cleanest in Indonesia this afternoon. Based on the air quality index from the Ministry of Environment and Forestry (KLHK), West Kutai Regency scored 12 on Tuesday (25/11/2025) at 4:00 PM WIB.

At that time, the air quality in West Kutai Regency was classified as good, meaning the pollutant levels in the air were very minimal. Subsequently, Madiun Regency ranked second with an air quality index of 13. Next, Nabire Regency was in third place with an air quality index of 17.

Here is the complete list of the 10 cities with the cleanest air quality in Indonesia according to KLHK on Tuesday, November 25, 2025, at 4:00 PM WIB.

1. West Kutai Regency (East Kalimantan): 12
2. Madiun Regency (East Java): 13
3. Nabire Regency (Central Papua): 17
4. Madiun (East Java): 18
5. South Lampung Regency (Lampung): 20
6. Tarakan (North Kalimantan): 21
7. Sukabumi Regency (West Java): 24
8. Lumajang Regency (East Java): 25
9. Tomohon (North Sulawesi): 26
10. Bontang (East Kalimantan): 28

(Read: 55 Disasters Occurred in Mid-September 2023, Forest Fires Dominated)

Based on Minister of Environment and Forestry Regulation No. 14 of 2020 concerning the Air Pollution 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 Tuesday (25/11/2025) at 4:00 PM WIB, all these cities had good air quality.

(Read: West Kalimantan Produced the Most CO2 Emissions from Forest Fires Until July 2023)