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AU · Australia · –

Barkly fire, 23 May 2025 Barkly, Roper Gulf

Out · last detection 8 Jun 2025, 15:56 UTC

The fire started on 23 May 2025 in Barkly, Australia, and satellites saw it burning for 16 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,422 hectares from heat detections, spread across 2 municipalities.

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.

Compare with…
Burnt area
5,422ha
GWIS perimeter (Copernicus)
Duration
16days
23 May 2025 – 7 Jun 2025
Municipalities hit
2
local government areas
Started on
23 May
2025
Heat detections
216
in a single hotspot: 173 MW
Danger at start
47
Very high · FWI index
Average daily power
90MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 23 May7 Jun
8 Jun 2025

How it evolved, day by day

25 May 2025 · 79 MW · 7 26 May 2025 · 11 MW · 1 27 May 2025 · 4 MW · 3 28 May 2025 · 7 MW · 9 29 May 2025 · 46 MW · 9 30 May 2025 · 68 MW · 21 31 May 2025 · 82 MW · 19 1 Jun 2025 · 615 MW · 43 2 Jun 2025 · 195 MW · 37 3 Jun 2025 · 128 MW · 35 4 Jun 2025 · 41 MW · 14 5 Jun 2025 · 37 MW · 8 6 Jun 2025 · 12 MW · 2 7 Jun 2025 · 9 MW · 5 8 Jun 2025 · 10 MW · 3
25 May 28 May 1 Jun 6 Jun

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

The weather it burned in

33°high
47km/h · peak gust
21%lowest humidity

It had gone 40 days without rain (1 mm or more) when it started.

This area had burned before

99% of the perimeter overlaps earlier fires recorded since 2016: 10 ha in 2016, 3,874 ha in 2017, 15 ha in 2018, 4,550 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 5,347 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.4% of the area of London (54 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. Barkly where it started
    4,156 ha
    0.0 %
  2. 1,264 ha
    0.0 %

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.

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)
23 May 28.0 °C 26 % 44 km/h 0.0 mm Very high 47
24 May 30.7 °C 38 % 30 km/h 0.0 mm High 38
25 May 32.8 °C 40 % 32 km/h 0.1 mm Very high 40
26 May 32.4 °C 44 % 33 km/h 0.0 mm Very high 38
27 May 31.4 °C 43 % 37 km/h 0.0 mm Very high 39
28 May 24.9 °C 38 % 38 km/h 0.0 mm High 38
29 May 21.4 °C 52 % 46 km/h 0.0 mm Very high 39
30 May 23.9 °C 36 % 47 km/h 0.0 mm Very high 39
31 May 25.2 °C 30 % 45 km/h 0.0 mm Very high 40
1 Jun 28.0 °C 34 % 27 km/h 0.0 mm High 30
2 Jun 28.4 °C 24 % 33 km/h 0.0 mm Very high 44
3 Jun 27.4 °C 24 % 38 km/h 0.0 mm Very high 48
4 Jun 26.4 °C 24 % 41 km/h 0.0 mm Extreme 52
5 Jun 25.6 °C 28 % 41 km/h 0.0 mm Very high 48
6 Jun 27.9 °C 32 % 30 km/h 0.0 mm Very high 40
7 Jun 27.2 °C 21 % 39 km/h 0.0 mm Extreme 52
8 Jun after 24.1 °C 23 % 47 km/h 0.0 mm Extreme 57
9 Jun after 22.9 °C 25 % 49 km/h 0.0 mm Extreme 60
10 Jun after 22.4 °C 27 % 49 km/h 0.0 mm Extreme 55
11 Jun after 22.6 °C 20 % 40 km/h 0.0 mm Very high 47
12 Jun after 23.4 °C 20 % 48 km/h 0.0 mm Extreme 62
13 Jun after 23.5 °C 20 % 53 km/h 0.0 mm Extreme 69
14 Jun after 24.2 °C 19 % 46 km/h 0.0 mm Extreme 57
15 Jun after 25.6 °C 22 % 39 km/h 0.0 mm Extreme 51
16 Jun after 25.6 °C 21 % 35 km/h 0.0 mm Very high 49
17 Jun after 26.0 °C 23 % 35 km/h 0.0 mm Very high 50

Before and after, from space

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

Before · 16 May 2025
After · 14 Jun 2025

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 25 May 2025 the air beside the fire reached 13 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak13 µg/m³
Days over the guideline0 days
PM1014 µg/m³
Optical depth0.15
25 May28 May31 May3 Jun6 Jun
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 · 216Every 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 Barkly fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 23 May 2025 to 7 June 2025 (16 days). The perimeter dates it from 27 May 2025 to 3 June 2025.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,422 hectares (54.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Barkly (4,156 ha, 0.0 %); Roper Gulf (1,264 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 32.8 °C, humidity dropped to 21 % and gusts hit 47 km/h. The fire danger index (FWI) reached 52, class 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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 3 June 2025 → 7 June 2025.
  2. Start date: 27 May 2025 → 23 May 2025.

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.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 27 May 2025 to 3 June 2025. 216 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.
  • 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.