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AU · Australia · –

Central Desert fire, 25 September 2023 Central Desert, Victoria Daly

Out · last detection 5 Nov 2023, 04:38 UTC

The fire started on 25 September 2023 in Central Desert, Australia, and satellites saw it burning for 41 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 226,233 hectares from heat detections, spread across 2 municipalities.

This page is probably a fire complex, not a single fire. GWIS merges into one perimeter the fires that touch over weeks, which in large burning seasons can join dozens of separate fires. The total area is reliable; the origin and dates refer to the whole complex.

This entry is probably a savanna fire in Australia’s tropical north, not a bushfire like those in the south of the country. Millions of hectares of northern savanna and grassland burn every year: much of it in burns lit on purpose early in the dry season (traditional fire management, parks and cattle stations), the rest in grass fires that return to the same ground every few years. This is our assumption, based on the location; it is not confirmed. That is why it is left out of the wildfire rankings.

Burnt area
226,233ha
GWIS perimeter (Copernicus)
Duration
41days
25 Sept 2023 – 4 Nov 2023
Municipalities hit
2
local government areas
Started on
25 Sept
2023
Heat detections
10,324
in a single hotspot: 385 MW
Danger at start
73
Very extreme · FWI index
Average daily power
3.0GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 25 Sept4 Nov
5 Nov 2023

How it evolved, day by day

25 Sept 2023 · 728 MW · 75 26 Sept 2023 · 147 MW · 32 27 Sept 2023 · 42 MW · 9 28 Sept 2023 · 55 MW · 19 29 Sept 2023 · 341 MW · 53 30 Sept 2023 · 140 MW · 23 1 Oct 2023 · 82 MW · 12 2 Oct 2023 · 58 MW · 8 3 Oct 2023 · 3,242 MW · 77 4 Oct 2023 · 2,897 MW · 106 5 Oct 2023 · 253 MW · 74 6 Oct 2023 · 586 MW · 112 7 Oct 2023 · 754 MW · 104 8 Oct 2023 · 930 MW · 106 9 Oct 2023 · 185 MW · 44 10 Oct 2023 · 315 MW · 85 11 Oct 2023 · 1,502 MW · 60 12 Oct 2023 · 613 MW · 96 13 Oct 2023 · 458 MW · 89 14 Oct 2023 · 352 MW · 54 15 Oct 2023 · 978 MW · 131 16 Oct 2023 · 361 MW · 110 17 Oct 2023 · 937 MW · 130 18 Oct 2023 · 12,282 MW · 422 19 Oct 2023 · 3,041 MW · 210 20 Oct 2023 · 2,735 MW · 209 21 Oct 2023 · 5,098 MW · 305 22 Oct 2023 · 17,603 MW · 857 23 Oct 2023 · 3,771 MW · 348 24 Oct 2023 · 19,535 MW · 1615 25 Oct 2023 · 9,112 MW · 740 26 Oct 2023 · 5,604 MW · 967 27 Oct 2023 · 8,192 MW · 958 28 Oct 2023 · 8,926 MW · 875 29 Oct 2023 · 2,477 MW · 405 30 Oct 2023 · 2,663 MW · 232 31 Oct 2023 · 1,357 MW · 154 1 Nov 2023 · 838 MW · 97 2 Nov 2023 · 1,370 MW · 177 3 Nov 2023 · 4,327 MW · 103 4 Nov 2023 · 75 MW · 16 5 Nov 2023 · 594 MW · 25
25 Sept 4 Oct 13 Oct 24 Oct 31 Oct

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

40°high
63km/h · peak gust
3%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 2.1 mm on 10 Nov.

This area had burned before

16% of the perimeter overlaps earlier fires recorded since 2016: 1,517 ha in 2016, 29,476 ha in 2017, 1,901 ha in 2018, 3,464 ha in 2021, 3,550 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 36,704 ha that had burned before.

How big is it?

20 km
It burned the equivalent of 1.4 times the area of London (2,262 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. Central Desert where it started
    181,109 ha reached on 25 Sept
    0.6 %
  2. 43,979 ha reached on 25 Sept
    0.3 %

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

People and buildings inside the perimeter

GHSL 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)

Started with Very dry air: 28 % of the area in Australia 60 days without rain: 7.6 % of the area in Australia

Day High Min. humidity Peak gust Rain Danger (FWI)
25 Sept 36.2 °C 13 % 30 km/h 0.0 mm Very extreme 73
26 Sept 36.9 °C 14 % 35 km/h 0.0 mm Very extreme 77
27 Sept 37.0 °C 14 % 35 km/h 0.0 mm Very extreme 72
28 Sept 35.9 °C 16 % 45 km/h 0.0 mm Very extreme 95
29 Sept 36.0 °C 12 % 47 km/h 0.0 mm Very extreme 99
30 Sept 36.1 °C 15 % 34 km/h 0.0 mm Extreme 67
1 Oct 37.0 °C 18 % 46 km/h 0.0 mm Very extreme 80
2 Oct 38.2 °C 16 % 38 km/h 0.0 mm Extreme 70
3 Oct 37.8 °C 20 % 37 km/h 0.0 mm Extreme 58
4 Oct 37.0 °C 14 % 63 km/h 0.0 mm Very extreme 131
5 Oct 33.1 °C 15 % 55 km/h 0.0 mm Very extreme 101
6 Oct 33.4 °C 12 % 53 km/h 0.0 mm Very extreme 97
7 Oct 32.1 °C 9 % 52 km/h 0.0 mm Very extreme 90
8 Oct 33.4 °C 10 % 53 km/h 0.0 mm Very extreme 96
9 Oct 34.9 °C 11 % 55 km/h 0.0 mm Very extreme 107
10 Oct 35.7 °C 11 % 54 km/h 0.0 mm Very extreme 101
11 Oct 36.5 °C 10 % 47 km/h 0.0 mm Very extreme 92
12 Oct 38.2 °C 11 % 47 km/h 0.0 mm Very extreme 100
13 Oct 37.6 °C 12 % 54 km/h 0.0 mm Very extreme 103
14 Oct 36.0 °C 8 % 47 km/h 0.0 mm Very extreme 99
15 Oct 35.5 °C 5 % 44 km/h 0.0 mm Very extreme 87
16 Oct 35.7 °C 5 % 55 km/h 0.0 mm Very extreme 129
17 Oct 35.7 °C 9 % 56 km/h 0.0 mm Very extreme 119
18 Oct 35.7 °C 7 % 40 km/h 0.0 mm Very extreme 79
19 Oct 37.2 °C 5 % 34 km/h 0.0 mm Very extreme 83
20 Oct 38.2 °C 5 % 31 km/h 0.0 mm Very extreme 81
21 Oct 39.5 °C 7 % 32 km/h 0.0 mm Very extreme 70
22 Oct 38.4 °C 12 % 33 km/h 0.0 mm Very extreme 78
23 Oct 38.1 °C 15 % 23 km/h 0.0 mm Extreme 60
24 Oct 39.9 °C 14 % 38 km/h 0.0 mm Very extreme 78
25 Oct 38.3 °C 14 % 44 km/h 0.0 mm Very extreme 83
26 Oct 34.4 °C 12 % 53 km/h 0.0 mm Very extreme 106
27 Oct 33.7 °C 7 % 56 km/h 0.0 mm Very extreme 106
28 Oct 36.2 °C 3 % 45 km/h 0.0 mm Very extreme 101
29 Oct 37.6 °C 4 % 42 km/h 0.0 mm Very extreme 83
30 Oct 39.6 °C 9 % 29 km/h 0.0 mm Extreme 66
31 Oct 40.0 °C 15 % 34 km/h 0.0 mm Extreme 64
1 Nov 39.2 °C 21 % 35 km/h 0.0 mm Very extreme 73
2 Nov 38.6 °C 17 % 31 km/h 0.0 mm Extreme 55
3 Nov 40.0 °C 17 % 46 km/h 0.0 mm Very extreme 89
4 Nov 39.9 °C 11 % 49 km/h 0.0 mm Very extreme 100
5 Nov after 40.5 °C 12 % 49 km/h 0.0 mm Very extreme 89
6 Nov after 39.6 °C 11 % 41 km/h 0.0 mm Very extreme 87
7 Nov after 40.4 °C 12 % 23 km/h 0.0 mm Extreme 59
8 Nov after 39.2 °C 16 % 40 km/h 0.0 mm Very extreme 74
9 Nov after 40.3 °C 17 % 40 km/h 0.1 mm Very high 47
10 Nov after 38.2 °C 24 % 35 km/h 2.1 mm Extreme 56

Before and after, from space

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

Before · 18 Sept 2023
After · 11 Nov 2023

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 24 October 2023 the air beside the fire reached 228 µg/m³ of PM2.5. That day averaged 75: 5.0 times the WHO daily guideline (15).

PM2.5 peak228 µg/m³
Days over the guideline19 days
PM10326 µg/m³
Optical depth3.69
29 Sept7 Oct15 Oct23 Oct31 Oct
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)

Detections table · 10,324Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Australia

Frequently asked questions

How long did the Central Desert fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 25 September 2023 to 4 November 2023 (41 days). The perimeter dates it from 1 October 2023 to 2 November 2023.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 226,233 hectares (2,262.3 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Central Desert (181,109 ha, 0.6 %); Victoria Daly (43,979 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 40.0 °C, humidity dropped to 3 % and gusts hit 63 km/h. The fire danger index (FWI) reached 131, class Very extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Australia (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: 000 · Emergency number and official warnings

Satellite cross-check

History of this page · 6 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 2 November 2023 → 4 November 2023.
  2. Start date: 1 October 2023 → 25 September 2023.
  3. Last day with fire: 4 November 2023 → 2 November 2023.
  4. Start date: 25 September 2023 → 1 October 2023.
  5. Last day with fire: 2 November 2023 → 4 November 2023.
  6. Start date: 1 October 2023 → 25 September 2023.

RSS Changes to this page With cross-checks and a citable version

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 000.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery; 3 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 1 October 2023 to 2 November 2023. 10,324 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.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.
  • Probably a vegetation burn: not counted in the totals.

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 4.0 International (CC BY 4.0)). 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.