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Banjar fire, August 2026 Banjar

Out · last measured on 8 Sept 2026

The fire started on 24 August 2026 in Banjar, Indonesia, and satellites saw it burning for 16 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,664 hectares from heat detections, spread across a single municipality.

It is the 84th largest in South Kalimantan since 2016 (of 99 with a page). Number 854 in Indonesia in 2026, of 1010.

Compare with…

Suggestions: Banjar · 2026Tanah Laut · 2026

We have the GWIS perimeter for this fire, but not yet its hotspots: NASA publishes the yearly hotspot archive only once the year closes. The page picks them up automatically when they are available.

Burnt area
1,664ha
GWIS perimeter (Copernicus)
Duration
16days
24 Aug 2026 – 8 Sept 2026
Municipalities hit
1
regencies
Started on
24 Aug
2026
Danger at start
27
High · FWI index

Where it burned

The weather it burned in

33°high
48km/h · peak gust
45%lowest humidity

It had gone 29 days without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 17 Sept.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 1.1% of the area of London (17 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Banjar where it started
    1,676 ha
    0.4 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

The weather day by day

ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.

Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

Day High Min. humidity Peak gust Rain Danger (FWI)
24 Aug 31.1 °C 49 % 46 km/h 0.0 mm High 27
25 Aug 30.9 °C 51 % 48 km/h 0.0 mm High 29
26 Aug 31.3 °C 51 % 45 km/h 0.0 mm High 28
27 Aug 31.1 °C 50 % 44 km/h 0.0 mm High 28
28 Aug 31.0 °C 50 % 45 km/h 0.0 mm High 29
29 Aug 32.5 °C 46 % 37 km/h 0.0 mm High 26
30 Aug 33.3 °C 47 % 33 km/h 0.0 mm High 26
31 Aug 33.0 °C 46 % 39 km/h 0.0 mm High 28
1 Sept 31.8 °C 47 % 44 km/h 0.0 mm High 30
2 Sept 31.5 °C 51 % 43 km/h 0.0 mm High 28
3 Sept 32.3 °C 47 % 44 km/h 0.0 mm High 29
4 Sept 31.1 °C 55 % 43 km/h 0.0 mm High 27
5 Sept 31.5 °C 50 % 44 km/h 0.0 mm High 27
6 Sept 32.9 °C 45 % 40 km/h 0.0 mm High 27
7 Sept 31.3 °C 56 % 47 km/h 0.0 mm High 28
8 Sept 31.8 °C 52 % 44 km/h 0.0 mm High 28
9 Sept after 31.9 °C 52 % 49 km/h 0.0 mm High 30
10 Sept after 32.0 °C 50 % 46 km/h 0.0 mm High 29
11 Sept after 32.3 °C 51 % 46 km/h 0.0 mm High 29
12 Sept after 33.6 °C 46 % 41 km/h 0.0 mm High 28
13 Sept after 33.7 °C 41 % 48 km/h 0.0 mm High 33
14 Sept after 32.0 °C 48 % 54 km/h 0.0 mm High 35
15 Sept after 33.7 °C 40 % 48 km/h 0.0 mm High 34
16 Sept after 32.0 °C 50 % 44 km/h 0.0 mm High 31
17 Sept after 32.2 °C 47 % 44 km/h 1.4 mm Moderate 21

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 17 Aug 2026
After · 15 Sept 2026

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

The smoke

CAMS · Copernicus

On 26 August 2026 the air beside the fire reached 56 µg/m³ of PM2.5. That day averaged 28: 1.8 times the WHO daily guideline (15).

PM2.5 peak56 µg/m³
Days over the guideline15 days
PM1059 µg/m³
Optical depth1.03
222324252627282930311234567891011
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Other fires nearby

All fires in Indonesia ›

Frequently asked questions

How long did the Banjar fire last?
GWIS (Copernicus) dates it between 24 August 2026 and 8 September 2026: 16 days between the first and last heat detection of the perimeter.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,664 hectares (16.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Banjar (1,676 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 33.3 °C, humidity dropped to 45 % and gusts hit 48 km/h. The fire danger index (FWI) reached 30, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Indonesia (geoBoundaries). It is not an official report.

Where to verify it

A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.

Emergency number: 112

Satellite cross-check

Does something look wrong on this page?

This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.

Report an error
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 112.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. No Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.

How we build fire pages: methodology ›

Where this data comes from

The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM2 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.