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ID · 2025 yearbook

Wildfires in Indonesia in 2025

48 fires larger than 1,500 hectares in Indonesia in 2025, with 148,025 hectares burned according to their perimeters. Here is the whole year: what the official record says, when and where it burned and what the weather was like.

Only fires of 1,500 ha or more get an entry: smaller ones are not in the lists or the entry totals, but they are in the GWIS yearly series.

These figures leave out one page with faulty data, under review. They appear in the lists, marked.

Series not comparable from October 2025 onwards: GWIS changed its near-real-time perimeters.

The year in a few sentences

  1. According to Copernicus GWIS, 793,401 hectares burned in Indonesia in 2025: 21% of the average of the other years from 2012 to 2025 (3,783,826 ha). GWIS figures for 2025 and 2026 are provisional: they are left out of the average and the worst year.

    Copernicus GWIS · See the data

  2. The worst week was 17 September to 23 September: 103,386 hectares burned in seven days, 13% of the year according to Copernicus GWIS.

    Copernicus GWIS · See the data

  3. The largest fire was the Sekadau fire, which started on 19 September 2025 and burned 20,686 hectares: 14% of the area of the year's 48 fires with a page.

    WorldFires · See the data · Open the fire page

  4. The day of highest danger at a fire this year was 20 July 2025: a Fire Weather Index of 35 (high on the EFFIS scale) at the Padang Lawas fire, calculated by WorldFires from ERA5.

    WorldFires · ERA5 · See the data · Open the fire page

Official burned area
793k ha
Copernicus GWIS
Fires with a page
48
148,025 ha within their perimeters
Largest fire
21k ha
Sekadau · 19 Sept
Highest FWI
35 High
20 Jul · Padang Lawas

Map of the year

Copernicus GWIS
One circle per fire, sized by its area. Tap one to open its page.

Month by month

Hectares within the perimeters by the month the fire started. Tap a month to see it on the map.

Week by week, against other years

Copernicus GWIS

Cumulative burned area in 2025 over the lowest and highest of each week in the record since 2012, and its average. The bars below show what burned each week. Tap the chart to see a week. The average and the band are the Copernicus GWIS climatology for 2012–2025, which includes 2025 itself.

0 4.7 M 9.4 M 14.1 M Worst week · 103k ha Jan Mar May Jul Sep Nov
2025 average 2012–2025 lowest and highest Hectares each week

Every year since 2012

Copernicus GWIS

Hectares burned per year in the official record. Tap a year to open its yearbook.

2025: 793,401 ha Average of the other years: 3,783,826 ha

Cite this

Markdown version

Copy the sentences with their source and link. WorldFires data are CC BY 4.0: credit WorldFires and the original source.

- According to Copernicus GWIS, 793,401 hectares burned in Indonesia in 2025: 21% of the average of the other years from 2012 to 2025 (3,783,826 ha). GWIS figures for 2025 and 2026 are provisional: they are left out of the average and the worst year.
- The worst week was 17 September to 23 September: 103,386 hectares burned in seven days, 13% of the year according to Copernicus GWIS.
- The largest fire was the Sekadau fire, which started on 19 September 2025 and burned 20,686 hectares: 14% of the area of the year's 48 fires with a page.
- The day of highest danger at a fire this year was 20 July 2025: a Fire Weather Index of 35 (high on the EFFIS scale) at the Padang Lawas fire, calculated by WorldFires from ERA5.

WorldFires, “Wildfires in Indonesia in 2025”, https://worldfires.org/en/country/indonesia/2025 (accessed 9 November 2026). Sources: Copernicus GWIS, WorldFires, WorldFires · ERA5.

Fires of 2025, largest first · 49

Burned area in 2025 (Copernicus Land, Sentinel-3)

According to Copernicus Land, 503,896 ha burned in 2025: rank 5 of 7 complete years (1 = the most burned). The average of those years is 1,301,011 ha.

The area the Sentinel-3 satellite sees burned each month, separate from the fire pages. It is the same source and the same method every year, so years can be compared with each other. It counts everything that burns, including crop and pasture burning, which is why it does not match the fire pages or the official statistics.

JanFebMarAprMayJunJulAugSepOctNovDec

Where most burned in 2025

  1. East Nusa Tenggara 210,650 ha
  2. West Nusa Tenggara 46,446 ha
  3. Papua 36,822 ha
  4. North Sumatra 27,688 ha
  5. Maluku 25,562 ha
  6. South Sulawesi 23,970 ha
  7. East Java 18,717 ha
  8. Riau 18,583 ha
  9. West Kalimantan 18,224 ha
  10. Southeast Sulawesi 17,929 ha

The whole series since 2018

Source: Copernicus Land Monitoring Service, “Burnt Area 2018-present (raster 300 m), global, monthly – version 4”, monthly Sentinel-3 product, DOI 10.2909/8fa58061-28ab-49bb-9b77-c26b50733e34. Generated using European Union’s Copernicus Land Monitoring Service information; worldfires.org adds up, by country and region, the true area of the 300 m cells where a burn was detected. Latest month published: May 2026. Product page · Methodology

Sources and limits

Fire-page areas are satellite-measured perimeters and may differ from official statistics. The yearly and weekly record is the Copernicus GWIS estimate. The FWI is our own calculation from ERA5 at each fire's location: it is not an official danger warning.

Perimeters: Copernicus EFFIS and GWIS (and MTBS, NIFC or NBAC in North America). Hotspots: NASA FIRMS (VIIRS). Weather: Copernicus ERA5 via Open-Meteo. How it is calculated